From 0662921df78a14d7f7bb681002322f92ae29e02d Mon Sep 17 00:00:00 2001
From: Matthew Tylee Atkinson <matatk@gmail.com>
Date: Wed, 10 Apr 2019 00:47:50 +0100
Subject: [PATCH] feat: Initial test suite, based on the Landmarks extension

This is a basic version of the test suite from Landmarks that has been designed to work with other tools, such as a11y-outline/aria-api. The fixtures and expectations come from the Landmarks browser extension, but the code was written from scratch using TDD.

There are lots more features to come, though this initial version is used as a drop-in replacement for the Landmarks extension test suite.

For more information, consult https://github.com/matatk/landmarks/issues/303
---
 .editorconfig                                 |   16 +
 .eslintrc.json                                |   89 +
 .gitignore                                    |    4 +
 .npmrc                                        |    2 +
 LICENCE                                       |   19 +
 README.md                                     |  102 +
 bin/htmlLandmarksResults.js                   |   31 +
 bin/runLandmarksTests.js                      |    8 +
 .../application-alone-on-body-is-ignored.json |    3 +
 .../aria-labelledby-multiple-idrefs.json      |   38 +
 expectations/article-is-ignored.json          |    3 +
 expectations/aside-alone-is-recognised.json   |   10 +
 expectations/aside-aria-labelledby.json       |   10 +
 expectations/digital-publishing-roles.json    |  154 +
 .../footer-in-blockquote-is-ignored.json      |    3 +
 expectations/form-alone-is-ignored.json       |    3 +
 expectations/form-aria-label.json             |   10 +
 expectations/form-aria-labelledby.json        |   10 +
 .../header-containing-nav-nav-search.json     |   44 +
 .../header-in-blockquote-is-ignored.json      |    3 +
 .../hidden-by-css-display-none-inline.json    |   10 +
 .../hidden-by-css-display-none-nested.json    |   10 +
 expectations/hidden-by-css-display-none.json  |   10 +
 .../hidden-by-css-visibility-hidden.json      |   10 +
 ...idden-by-html-hidden-attribute-nested.json |   10 +
 .../hidden-by-html-hidden-attribute.json      |   10 +
 expectations/landmark-role-on-body.json       |   10 +
 expectations/main-alone-is-recognised.json    |   10 +
 expectations/main-aria-label.json             |   10 +
 expectations/main-aria-labelledby.json        |   10 +
 expectations/nested-siblings.json             |   24 +
 expectations/nesting-depth-restoration.json   |   38 +
 expectations/no-landmarks-just-divs.json      |    3 +
 expectations/prefer-aria-labelledby.json      |   10 +
 expectations/region-alone-is-ignored.json     |    3 +
 expectations/region-aria-label.json           |   10 +
 expectations/region-aria-labelledby.json      |   10 +
 expectations/roles-land.json                  |   42 +
 expectations/section-alone-is-ignored.json    |    3 +
 expectations/section-aria-label.json          |   10 +
 expectations/section-aria-labelledby.json     |   10 +
 expectations/structural-elements.json         |   34 +
 .../application-alone-on-body-is-ignored.html |   12 +
 fixtures/aria-labelledby-multiple-idrefs.html |   35 +
 fixtures/article-is-ignored.html              |   12 +
 fixtures/aside-alone-is-recognised.html       |   12 +
 fixtures/aside-aria-labelledby.html           |   13 +
 fixtures/digital-publishing-roles.html        |  125 +
 fixtures/footer-in-blockquote-is-ignored.html |   15 +
 fixtures/form-alone-is-ignored.html           |   12 +
 fixtures/form-aria-label.html                 |   12 +
 fixtures/form-aria-labelledby.html            |   13 +
 .../header-containing-nav-nav-search.html     |   27 +
 fixtures/header-in-blockquote-is-ignored.html |   15 +
 .../hidden-by-css-display-none-inline.html    |   15 +
 .../hidden-by-css-display-none-nested.html    |   22 +
 fixtures/hidden-by-css-display-none.html      |   20 +
 fixtures/hidden-by-css-visibility-hidden.html |   20 +
 ...idden-by-html-hidden-attribute-nested.html |   17 +
 fixtures/hidden-by-html-hidden-attribute.html |   15 +
 fixtures/landmark-role-on-body.html           |   11 +
 fixtures/main-alone-is-recognised.html        |   12 +
 fixtures/main-aria-label.html                 |   12 +
 fixtures/main-aria-labelledby.html            |   13 +
 fixtures/nested-siblings.html                 |   17 +
 fixtures/nesting-depth-restoration.html       |   27 +
 fixtures/no-landmarks-just-divs.html          |   18 +
 fixtures/prefer-aria-labelledby.html          |   13 +
 fixtures/region-alone-is-ignored.html         |   12 +
 fixtures/region-aria-label.html               |   12 +
 fixtures/region-aria-labelledby.html          |   13 +
 fixtures/roles-land.html                      |   46 +
 fixtures/section-alone-is-ignored.html        |   12 +
 fixtures/section-aria-label.html              |   12 +
 fixtures/section-aria-labelledby.html         |   13 +
 fixtures/structural-elements.html             |   31 +
 index.js                                      |   24 +
 lib/converters.js                             |   64 +
 lib/iterator.js                               |   29 +
 lib/runner.js                                 |   36 +
 lib/scan.js                                   |   65 +
 lib/tableEntryMaker.js                        |    7 +
 package-lock.json                             | 3137 +++++++++++++++++
 package.json                                  |   26 +
 test/converters.test.js                       |  162 +
 test/iterator.test.js                         |   47 +
 test/runner.test.js                           |   57 +
 test/scan.test.js                             |  115 +
 test/simple/expectations/simple-1.json        |    5 +
 test/simple/expectations/simple-2.json        |    5 +
 test/simple/fixtures/simple-1.html            |    1 +
 test/simple/fixtures/simple-2.html            |    1 +
 test/tableEntryMaker.test.js                  |   20 +
 93 files changed, 5346 insertions(+)
 create mode 100644 .editorconfig
 create mode 100644 .eslintrc.json
 create mode 100644 .gitignore
 create mode 100644 .npmrc
 create mode 100644 LICENCE
 create mode 100644 README.md
 create mode 100644 bin/htmlLandmarksResults.js
 create mode 100644 bin/runLandmarksTests.js
 create mode 100644 expectations/application-alone-on-body-is-ignored.json
 create mode 100644 expectations/aria-labelledby-multiple-idrefs.json
 create mode 100644 expectations/article-is-ignored.json
 create mode 100644 expectations/aside-alone-is-recognised.json
 create mode 100644 expectations/aside-aria-labelledby.json
 create mode 100644 expectations/digital-publishing-roles.json
 create mode 100644 expectations/footer-in-blockquote-is-ignored.json
 create mode 100644 expectations/form-alone-is-ignored.json
 create mode 100644 expectations/form-aria-label.json
 create mode 100644 expectations/form-aria-labelledby.json
 create mode 100644 expectations/header-containing-nav-nav-search.json
 create mode 100644 expectations/header-in-blockquote-is-ignored.json
 create mode 100644 expectations/hidden-by-css-display-none-inline.json
 create mode 100644 expectations/hidden-by-css-display-none-nested.json
 create mode 100644 expectations/hidden-by-css-display-none.json
 create mode 100644 expectations/hidden-by-css-visibility-hidden.json
 create mode 100644 expectations/hidden-by-html-hidden-attribute-nested.json
 create mode 100644 expectations/hidden-by-html-hidden-attribute.json
 create mode 100644 expectations/landmark-role-on-body.json
 create mode 100644 expectations/main-alone-is-recognised.json
 create mode 100644 expectations/main-aria-label.json
 create mode 100644 expectations/main-aria-labelledby.json
 create mode 100644 expectations/nested-siblings.json
 create mode 100644 expectations/nesting-depth-restoration.json
 create mode 100644 expectations/no-landmarks-just-divs.json
 create mode 100644 expectations/prefer-aria-labelledby.json
 create mode 100644 expectations/region-alone-is-ignored.json
 create mode 100644 expectations/region-aria-label.json
 create mode 100644 expectations/region-aria-labelledby.json
 create mode 100644 expectations/roles-land.json
 create mode 100644 expectations/section-alone-is-ignored.json
 create mode 100644 expectations/section-aria-label.json
 create mode 100644 expectations/section-aria-labelledby.json
 create mode 100644 expectations/structural-elements.json
 create mode 100644 fixtures/application-alone-on-body-is-ignored.html
 create mode 100644 fixtures/aria-labelledby-multiple-idrefs.html
 create mode 100644 fixtures/article-is-ignored.html
 create mode 100644 fixtures/aside-alone-is-recognised.html
 create mode 100644 fixtures/aside-aria-labelledby.html
 create mode 100644 fixtures/digital-publishing-roles.html
 create mode 100644 fixtures/footer-in-blockquote-is-ignored.html
 create mode 100644 fixtures/form-alone-is-ignored.html
 create mode 100644 fixtures/form-aria-label.html
 create mode 100644 fixtures/form-aria-labelledby.html
 create mode 100644 fixtures/header-containing-nav-nav-search.html
 create mode 100644 fixtures/header-in-blockquote-is-ignored.html
 create mode 100644 fixtures/hidden-by-css-display-none-inline.html
 create mode 100644 fixtures/hidden-by-css-display-none-nested.html
 create mode 100644 fixtures/hidden-by-css-display-none.html
 create mode 100644 fixtures/hidden-by-css-visibility-hidden.html
 create mode 100644 fixtures/hidden-by-html-hidden-attribute-nested.html
 create mode 100644 fixtures/hidden-by-html-hidden-attribute.html
 create mode 100644 fixtures/landmark-role-on-body.html
 create mode 100644 fixtures/main-alone-is-recognised.html
 create mode 100644 fixtures/main-aria-label.html
 create mode 100644 fixtures/main-aria-labelledby.html
 create mode 100644 fixtures/nested-siblings.html
 create mode 100644 fixtures/nesting-depth-restoration.html
 create mode 100644 fixtures/no-landmarks-just-divs.html
 create mode 100644 fixtures/prefer-aria-labelledby.html
 create mode 100644 fixtures/region-alone-is-ignored.html
 create mode 100644 fixtures/region-aria-label.html
 create mode 100644 fixtures/region-aria-labelledby.html
 create mode 100644 fixtures/roles-land.html
 create mode 100644 fixtures/section-alone-is-ignored.html
 create mode 100644 fixtures/section-aria-label.html
 create mode 100644 fixtures/section-aria-labelledby.html
 create mode 100644 fixtures/structural-elements.html
 create mode 100644 index.js
 create mode 100644 lib/converters.js
 create mode 100644 lib/iterator.js
 create mode 100644 lib/runner.js
 create mode 100644 lib/scan.js
 create mode 100644 lib/tableEntryMaker.js
 create mode 100644 package-lock.json
 create mode 100644 package.json
 create mode 100644 test/converters.test.js
 create mode 100644 test/iterator.test.js
 create mode 100644 test/runner.test.js
 create mode 100644 test/scan.test.js
 create mode 100644 test/simple/expectations/simple-1.json
 create mode 100644 test/simple/expectations/simple-2.json
 create mode 100644 test/simple/fixtures/simple-1.html
 create mode 100644 test/simple/fixtures/simple-2.html
 create mode 100644 test/tableEntryMaker.test.js

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..9f23941
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,16 @@
+# http://EditorConfig.org
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = tab
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.{json,yml}]
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..6666ba0
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,89 @@
+{
+  "env": {
+    "es6": true,
+    "node": true
+  },
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "ecmaVersion": 2017
+  },
+  "root": true,
+  "rules": {
+    "block-scoped-var": "error",
+    "brace-style": "error",
+    "camelcase": "warn",
+    "curly": [
+      "error",
+      "multi-line"
+    ],
+    "eqeqeq": "error",
+    "func-call-spacing": "error",
+    "indent": [
+      "error",
+      "tab",
+      {
+        "SwitchCase": 1
+      }
+    ],
+    "new-cap": "error",
+    "no-bitwise": "error",
+    "no-caller": "error",
+    "no-console": "off",
+    "no-else-return": "error",
+    "no-eq-null": "error",
+    "no-labels": "error",
+    "no-lone-blocks": "error",
+    "no-lonely-if": "error",
+    "no-loop-func": "warn",
+    "no-multi-assign": "error",
+    "no-throw-literal": "error",
+    "no-undef": "error",
+    "no-unexpected-multiline": "error",
+    "no-unused-expressions": "error",
+    "no-unused-vars": "error",
+    "no-use-before-define": [
+      "error",
+      {
+        "functions": false
+      }
+    ],
+    "no-var": "error",
+    "one-var": [
+      "error",
+      "never"
+    ],
+    "prefer-const": "error",
+    "quotes": [
+      "error",
+      "single",
+      {
+        "avoidEscape": true
+      }
+    ],
+    "semi": [
+      "error",
+      "never"
+    ],
+    "space-before-blocks": "error",
+    "space-before-function-paren": [
+      "error",
+      "never"
+    ],
+    "space-infix-ops": "error",
+    "space-unary-ops": "error",
+    "spaced-comment": "error",
+    "strict": [
+      "error",
+      "global"
+    ],
+    "use-isnan": "error",
+    "valid-jsdoc": "warn",
+    "valid-typeof": "warn",
+    "vars-on-top": "warn",
+    "wrap-iife": [
+      "error",
+      "inside"
+    ],
+    "yoda": "error"
+  }
+}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..11fa7d5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.DS_Store
+*.swp
+node_modules
+.nyc_output
diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..37de681
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1,2 @@
+tag-version-prefix=
+message=chore(release): %s
diff --git a/LICENCE b/LICENCE
new file mode 100644
index 0000000..934ad0b
--- /dev/null
+++ b/LICENCE
@@ -0,0 +1,19 @@
+Copyright © 2019 Matthew Tylee Atkinson
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..4b742e6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,102 @@
+Page Structural Semantics Scanner Tests
+=======================================
+
+This is a test and benchmarking suite that can be used to check tools that scan for semantic structural information on web pages, such as landmarks \[with headings and articles in the works\]. Such information is often used to afford or improve the accessibility of pages, allowing people using screen-readers and alternative browsers to navigate and understand the content.
+
+You can use this tool as:
+
+-   [A test suite for code that checks for landmarks](#use-as-a-test-suite)
+-   [A performance checker for the code](#use-as-a-benchmarking-tool)
+-   [A place to find results of tests carried out on tools that scan for landmarks](#use-as-a-comparison-between-accessible-structural-semantics-scanners)
+
+You may find the following information helpful:
+
+-   [Support for landmarks](#support-for-landmarks)
+-   [Development](#development)
+
+Use as a test suite
+-------------------
+
+There are three main components that come together in order to test structure-scanning code:
+
+-   **Fixtures** are HTML files, provided here.
+-   **Expectations** contain the correct set of landmarks for a given fixture, also provided here.
+-   A **scanner** function is the code under test. It runs on the DOM created from the fixture.
+
+In order to test a tool that finds landmarks on a page, a `runner(converter, scanner)` function is provided. This runs the tool's code on DOMs created from all fixtures and compares the results to the expectations, then reports if they matched. The runner takes two arguments, both of which are functions:
+
+-   `converter(<object>) -> <object>` should convert the format of the expectations in this test suite to the format that the tool being tested outputs.
+-   `scanner(window, document) -> object` runs the tool's code on the DOM constructed from the existing HTML fixture and returns the results (i.e. landmarks found).
+
+### Predefined runners for known tools
+
+For known tools, such as the [Landmarks browser extension](http://matatk.agrip.org.uk/landmarks/) a converter, and custom runner function, are already supplied. Consult [the Landmarks extension's test code](https://github.com/matatk/landmarks/blob/master/test/test-landmarks.js) for an example of their use.
+
+The `runners.landmarks(scanner)` function runs the given function `scanner(window, document)` on DOMs created from all test fixtures, with the expectations converted to [Landmarks](http://matatk.agrip.org.uk/landmarks/)' format.
+
+Use as a benchmarking tool
+--------------------------
+
+FIXME
+
+Use as a comparison between accessible structural semantics scanners
+--------------------------------------------------------------------
+
+FIXME
+
+Support for landmarks
+---------------------
+
+All of the core [WAI-ARIA landmark roles](https://www.w3.org/TR/wai-aria-1.1/#landmark_roles), both as supplied via the `role` attribute and as [implicit landmarks via HTML 5 elements](https://www.w3.org/TR/html-aam-1.0/#html-element-role-mappings) are supported, with some caveats, as described below.
+
+-   banner<sup>1</sup>
+-   complementary
+-   contentinfo<sup>1</sup>
+-   form<sup>2</sup>
+-   main
+-   navigation
+-   region<sup>2</sup>
+-   search
+
+### Caveats
+
+1.  Both `<header>` (`banner`) and `<footer>` (`contentinfo`) elements are not considered landmarks unless they are the page-wide header/footer elements. (As per the [HTML element role mappings](https://www.w3.org/TR/html-aam-1.0/#html-element-role-mappings).)
+
+2.  [`form`](https://www.w3.org/TR/wai-aria-1.1/#form) and [`region`](https://www.w3.org/TR/wai-aria-1.1/#region) landmarks are intended to be labelled. Ideally, this should be done with a visual label and an `aria-labelledby` attribute, so that all users can perceive the label. However, if a label is only provided by the non-visual `aria-label` attribute, this extension will recognise it.
+
+    The HTML Accessibility API Mapping is clear that both [unlabelled `<form>`](https://www.w3.org/TR/html-aam-1.0/#details-id-42) and [unlabelled `<section>` (`region`)](https://www.w3.org/TR/html-aam-1.0/#details-id-119) elements are *not* to be counted as landmark regions. This extension discounts *any* unlabelled element with a role of `form` or `region` too, which is in line with most assistive technologies, and is intended to reduce noise in landmark navigation.
+
+### Labelling landmarks
+
+If a landmark label is present (via the `aria-labelledby` or `aria-label` attributes), it'll be shown in the pop-up. As per the [accessible name calculation algorithm](https://www.w3.org/TR/accname-aam-1.1/#mapping_additional_nd_te) used by browsers, the `aria-labelledby` attribute takes precedence over `aria-label`.
+
+If an `aria-labelledby` attribute references multiple elements, all of those elements' text content will be joined to form the label for the landmark. However, it's not recommended that you label landmark regions with more than one element (usually referring to a single HTML heading element is sufficient). Using more than one labelling element could be a sign that your landmark structure is too complicated. [Referencing multiple labelling elements is more suited for labelling `<input>` elements with information from multiple sources.](https://www.w3.org/WAI/GL/wiki/Using_aria-labelledby_to_concatenate_a_label_from_several_text_nodes#Example_1:_A_time-out_input_field_with_concatenated_label)
+
+### Digital publishing ARIA landmarks
+
+The following additional landmark roles defined in the [Digital Publishing WAI-ARIA Module 1.0](https://www.w3.org/TR/dpub-aria-1.0/) are also supported.
+
+-   `doc-acknowledgements`
+-   `doc-afterword`
+-   `doc-appendix`
+-   `doc-bibliography`
+-   `doc-chapter`
+-   `doc-conclusion`
+-   `doc-credits`
+-   `doc-endnotes`
+-   `doc-epilogue`
+-   `doc-errata`
+-   `doc-foreword`
+-   `doc-glossary`
+-   `doc-index` (is a landmark via `navigation`)
+-   `doc-introduction`
+-   `doc-pagelist` (is a landmark via `navigation`)
+-   `doc-part`
+-   `doc-preface`
+-   `doc-prologue`
+-   `doc-toc` (is a landmark via `navigation`)
+
+Development
+-----------
+
+Development is test-driven; use `npm test` to run the tests on the suite itself.
diff --git a/bin/htmlLandmarksResults.js b/bin/htmlLandmarksResults.js
new file mode 100644
index 0000000..0dd0f27
--- /dev/null
+++ b/bin/htmlLandmarksResults.js
@@ -0,0 +1,31 @@
+'use strict'
+const path = require('path')
+const iterator = require('../lib/iterator')
+const converter = require('../lib/converters').landmarks
+const scan = require('../lib/scan').scanAndReturnPatch
+const tableEntryMaker = require('../lib/tableEntryMaker')
+
+const fixtures = path.join(__dirname, '..', 'fixtures')
+const expectations = path.join(__dirname, '..', 'expectations')
+
+const style = `
+table {
+  border-collapse: collapse;
+}
+
+th, td {
+  border: 1px solid gray;
+  padding: 0.5em;
+}`
+
+console.log(`<html><head><style>${style}</style>
+	<body><h1>Landmarks Tests</h1><table>`)
+console.log('<tr><th>Fixture</th><th>Result</th></tr>')
+
+iterator(fixtures, expectations, (testName, html, expectation) => {
+	const landmarksFormatExpectation = converter(expectation)
+	const result = scan(() => 42, html, landmarksFormatExpectation)
+	console.log(tableEntryMaker(testName, result.patch))
+})
+
+console.log('</table></body></html>')
diff --git a/bin/runLandmarksTests.js b/bin/runLandmarksTests.js
new file mode 100644
index 0000000..b00a315
--- /dev/null
+++ b/bin/runLandmarksTests.js
@@ -0,0 +1,8 @@
+'use strict'
+const path = require('path')
+const tap = require('tap')
+const runner = require('../lib/runner')
+const converter = require('../lib/converters').landmarks
+const fixtures = path.join(__dirname, '..', 'fixtures')
+const expectations = path.join(__dirname, '..', 'expectations')
+runner(tap, fixtures, expectations, converter, () => 42)
diff --git a/expectations/application-alone-on-body-is-ignored.json b/expectations/application-alone-on-body-is-ignored.json
new file mode 100644
index 0000000..495e72d
--- /dev/null
+++ b/expectations/application-alone-on-body-is-ignored.json
@@ -0,0 +1,3 @@
+{
+  "expected": []
+}
diff --git a/expectations/aria-labelledby-multiple-idrefs.json b/expectations/aria-labelledby-multiple-idrefs.json
new file mode 100644
index 0000000..de34bae
--- /dev/null
+++ b/expectations/aria-labelledby-multiple-idrefs.json
@@ -0,0 +1,38 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "banner",
+      "label": null,
+      "selector": "body > header",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "navigation",
+          "label": "World of wombats",
+          "selector": "body > header > nav"
+        }
+      ]
+    },
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": "Looking after your wombat",
+      "selector": "body > main",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "navigation",
+          "label": "Looking after your wombat Topics",
+          "selector": "body > main > nav:nth-child(2)"
+        }
+      ]
+    },
+    {
+      "type": "landmark",
+      "role": "contentinfo",
+      "label": null,
+      "selector": "body > footer"
+    }
+  ]
+}
diff --git a/expectations/article-is-ignored.json b/expectations/article-is-ignored.json
new file mode 100644
index 0000000..495e72d
--- /dev/null
+++ b/expectations/article-is-ignored.json
@@ -0,0 +1,3 @@
+{
+  "expected": []
+}
diff --git a/expectations/aside-alone-is-recognised.json b/expectations/aside-alone-is-recognised.json
new file mode 100644
index 0000000..2bed1be
--- /dev/null
+++ b/expectations/aside-alone-is-recognised.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "complementary",
+      "label": null,
+      "selector": "body > aside"
+    }
+  ]
+}
diff --git a/expectations/aside-aria-labelledby.json b/expectations/aside-aria-labelledby.json
new file mode 100644
index 0000000..a04bc8d
--- /dev/null
+++ b/expectations/aside-aria-labelledby.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "complementary",
+      "label": "And another thing...",
+      "selector": "body > aside"
+    }
+  ]
+}
diff --git a/expectations/digital-publishing-roles.json b/expectations/digital-publishing-roles.json
new file mode 100644
index 0000000..89f1f03
--- /dev/null
+++ b/expectations/digital-publishing-roles.json
@@ -0,0 +1,154 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "doc-part",
+      "label": "Frontmatter",
+      "selector": "body > div:nth-child(3)",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "doc-toc",
+          "label": null,
+          "selector": "body > div:nth-child(3) > nav:nth-child(1)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-pagelist",
+          "label": null,
+          "selector": "body > div:nth-child(3) > nav:nth-child(2)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-preface",
+          "label": null,
+          "selector": "body > div:nth-child(3) > div:nth-child(3)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-foreword",
+          "label": null,
+          "selector": "body > div:nth-child(3) > div:nth-child(4)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-acknowledgements",
+          "label": null,
+          "selector": "body > div:nth-child(3) > div:nth-child(5)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-prologue",
+          "label": null,
+          "selector": "body > div:nth-child(3) > div:nth-child(6)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-introduction",
+          "label": null,
+          "selector": "body > div:nth-child(3) > div:nth-child(7)"
+        }
+      ]
+    },
+    {
+      "type": "landmark",
+      "role": "doc-part",
+      "label": "Mainmatter",
+      "selector": "body > div:nth-child(4)",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "doc-chapter",
+          "label": "Beginnings",
+          "selector": "body > div:nth-child(4) > section:nth-child(1)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-chapter",
+          "label": "Middles",
+          "selector": "body > div:nth-child(4) > section:nth-child(2)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-chapter",
+          "label": "Endings",
+          "selector": "body > div:nth-child(4) > section:nth-child(3)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-conclusion",
+          "label": null,
+          "selector": "body > div:nth-child(4) > section:nth-child(4)"
+        }
+      ]
+    },
+    {
+      "type": "landmark",
+      "role": "doc-part",
+      "label": "Backmatter",
+      "selector": "body > div:nth-child(5)",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "doc-epilogue",
+          "label": null,
+          "selector": "body > div:nth-child(5) > div:nth-child(1)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-afterword",
+          "label": null,
+          "selector": "body > div:nth-child(5) > div:nth-child(2)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-endnotes",
+          "label": null,
+          "selector": "body > div:nth-child(5) > div:nth-child(3)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-bibliography",
+          "label": "References",
+          "selector": "body > div:nth-child(5) > div:nth-child(4)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-glossary",
+          "label": null,
+          "selector": "body > div:nth-child(5) > dl:nth-child(5)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-index",
+          "label": null,
+          "selector": "body > div:nth-child(5) > nav:nth-child(6)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-credits",
+          "label": null,
+          "selector": "body > div:nth-child(5) > div:nth-child(7)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-errata",
+          "label": null,
+          "selector": "body > div:nth-child(5) > div:nth-child(8)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-appendix",
+          "label": "Technical specification",
+          "selector": "body > div:nth-child(5) > div:nth-child(9)"
+        },
+        {
+          "type": "landmark",
+          "role": "doc-appendix",
+          "label": "Detailed schematics",
+          "selector": "body > div:nth-child(5) > div:nth-child(10)"
+        }
+      ]
+    }
+  ]
+}
diff --git a/expectations/footer-in-blockquote-is-ignored.json b/expectations/footer-in-blockquote-is-ignored.json
new file mode 100644
index 0000000..495e72d
--- /dev/null
+++ b/expectations/footer-in-blockquote-is-ignored.json
@@ -0,0 +1,3 @@
+{
+  "expected": []
+}
diff --git a/expectations/form-alone-is-ignored.json b/expectations/form-alone-is-ignored.json
new file mode 100644
index 0000000..495e72d
--- /dev/null
+++ b/expectations/form-alone-is-ignored.json
@@ -0,0 +1,3 @@
+{
+  "expected": []
+}
diff --git a/expectations/form-aria-label.json b/expectations/form-aria-label.json
new file mode 100644
index 0000000..4585a8f
--- /dev/null
+++ b/expectations/form-aria-label.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "form",
+      "label": "Contact Us",
+      "selector": "body > form"
+    }
+  ]
+}
diff --git a/expectations/form-aria-labelledby.json b/expectations/form-aria-labelledby.json
new file mode 100644
index 0000000..264a744
--- /dev/null
+++ b/expectations/form-aria-labelledby.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "form",
+      "label": "Report a Fault",
+      "selector": "body > form"
+    }
+  ]
+}
diff --git a/expectations/header-containing-nav-nav-search.json b/expectations/header-containing-nav-nav-search.json
new file mode 100644
index 0000000..b1c8085
--- /dev/null
+++ b/expectations/header-containing-nav-nav-search.json
@@ -0,0 +1,44 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "banner",
+      "label": null,
+      "selector": "body > header",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "navigation",
+          "label": null,
+          "selector": "body > header > nav:nth-child(1)"
+        },
+        {
+          "type": "landmark",
+          "role": "navigation",
+          "label": null,
+          "selector": "body > header > nav:nth-child(2)",
+          "contains": [
+            {
+              "type": "landmark",
+              "role": "search",
+              "label": null,
+              "selector": "body > header > nav:nth-child(2) > div"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    },
+    {
+      "type": "landmark",
+      "role": "contentinfo",
+      "label": null,
+      "selector": "body > footer"
+    }
+  ]
+}
diff --git a/expectations/header-in-blockquote-is-ignored.json b/expectations/header-in-blockquote-is-ignored.json
new file mode 100644
index 0000000..495e72d
--- /dev/null
+++ b/expectations/header-in-blockquote-is-ignored.json
@@ -0,0 +1,3 @@
+{
+  "expected": []
+}
diff --git a/expectations/hidden-by-css-display-none-inline.json b/expectations/hidden-by-css-display-none-inline.json
new file mode 100644
index 0000000..f9ffb30
--- /dev/null
+++ b/expectations/hidden-by-css-display-none-inline.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/hidden-by-css-display-none-nested.json b/expectations/hidden-by-css-display-none-nested.json
new file mode 100644
index 0000000..f9ffb30
--- /dev/null
+++ b/expectations/hidden-by-css-display-none-nested.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/hidden-by-css-display-none.json b/expectations/hidden-by-css-display-none.json
new file mode 100644
index 0000000..f9ffb30
--- /dev/null
+++ b/expectations/hidden-by-css-display-none.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/hidden-by-css-visibility-hidden.json b/expectations/hidden-by-css-visibility-hidden.json
new file mode 100644
index 0000000..f9ffb30
--- /dev/null
+++ b/expectations/hidden-by-css-visibility-hidden.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/hidden-by-html-hidden-attribute-nested.json b/expectations/hidden-by-html-hidden-attribute-nested.json
new file mode 100644
index 0000000..f9ffb30
--- /dev/null
+++ b/expectations/hidden-by-html-hidden-attribute-nested.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/hidden-by-html-hidden-attribute.json b/expectations/hidden-by-html-hidden-attribute.json
new file mode 100644
index 0000000..f9ffb30
--- /dev/null
+++ b/expectations/hidden-by-html-hidden-attribute.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/landmark-role-on-body.json b/expectations/landmark-role-on-body.json
new file mode 100644
index 0000000..bc481db
--- /dev/null
+++ b/expectations/landmark-role-on-body.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "region",
+      "label": "Unlikely to happen?",
+      "selector": "body"
+    }
+  ]
+}
diff --git a/expectations/main-alone-is-recognised.json b/expectations/main-alone-is-recognised.json
new file mode 100644
index 0000000..f9ffb30
--- /dev/null
+++ b/expectations/main-alone-is-recognised.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/main-aria-label.json b/expectations/main-aria-label.json
new file mode 100644
index 0000000..f896f9b
--- /dev/null
+++ b/expectations/main-aria-label.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": "Slartibartfast",
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/main-aria-labelledby.json b/expectations/main-aria-labelledby.json
new file mode 100644
index 0000000..385bd20
--- /dev/null
+++ b/expectations/main-aria-labelledby.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": "Kate",
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/nested-siblings.json b/expectations/nested-siblings.json
new file mode 100644
index 0000000..991baf7
--- /dev/null
+++ b/expectations/nested-siblings.json
@@ -0,0 +1,24 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "region",
+          "label": "Sibling One",
+          "selector": "body > main > div:nth-child(1) > div"
+        },
+        {
+          "type": "landmark",
+          "role": "region",
+          "label": "Sibling Two",
+          "selector": "body > main > div:nth-child(2) > div"
+        }
+      ]
+    }
+  ]
+}
diff --git a/expectations/nesting-depth-restoration.json b/expectations/nesting-depth-restoration.json
new file mode 100644
index 0000000..36d07b4
--- /dev/null
+++ b/expectations/nesting-depth-restoration.json
@@ -0,0 +1,38 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "banner",
+      "label": null,
+      "selector": "body > header"
+    },
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "region",
+          "label": "Outer section header",
+          "selector": "body > main > section",
+          "contains": [
+            {
+              "type": "landmark",
+              "role": "region",
+              "label": "Inner section header",
+              "selector": "body > main > section > section"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "type": "landmark",
+      "role": "contentinfo",
+      "label": null,
+      "selector": "body > footer"
+    }
+  ]
+}
diff --git a/expectations/no-landmarks-just-divs.json b/expectations/no-landmarks-just-divs.json
new file mode 100644
index 0000000..495e72d
--- /dev/null
+++ b/expectations/no-landmarks-just-divs.json
@@ -0,0 +1,3 @@
+{
+  "expected": []
+}
diff --git a/expectations/prefer-aria-labelledby.json b/expectations/prefer-aria-labelledby.json
new file mode 100644
index 0000000..385bd20
--- /dev/null
+++ b/expectations/prefer-aria-labelledby.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": "Kate",
+      "selector": "body > main"
+    }
+  ]
+}
diff --git a/expectations/region-alone-is-ignored.json b/expectations/region-alone-is-ignored.json
new file mode 100644
index 0000000..495e72d
--- /dev/null
+++ b/expectations/region-alone-is-ignored.json
@@ -0,0 +1,3 @@
+{
+  "expected": []
+}
diff --git a/expectations/region-aria-label.json b/expectations/region-aria-label.json
new file mode 100644
index 0000000..55bbcc9
--- /dev/null
+++ b/expectations/region-aria-label.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "region",
+      "label": "Reluctant Region",
+      "selector": "body > div"
+    }
+  ]
+}
diff --git a/expectations/region-aria-labelledby.json b/expectations/region-aria-labelledby.json
new file mode 100644
index 0000000..a3d0ca7
--- /dev/null
+++ b/expectations/region-aria-labelledby.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "region",
+      "label": "A Good Region",
+      "selector": "body > div"
+    }
+  ]
+}
diff --git a/expectations/roles-land.json b/expectations/roles-land.json
new file mode 100644
index 0000000..84a26a3
--- /dev/null
+++ b/expectations/roles-land.json
@@ -0,0 +1,42 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "banner",
+      "label": null,
+      "selector": "#banner"
+    },
+    {
+      "type": "landmark",
+      "role": "navigation",
+      "label": null,
+      "selector": "#navigation"
+    },
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "#main"
+    },
+    {
+      "type": "landmark",
+      "role": "complementary",
+      "label": null,
+      "selector": "#complementary",
+      "contains": [
+        {
+          "type": "landmark",
+          "role": "search",
+          "label": null,
+          "selector": "#search"
+        }
+      ]
+    },
+    {
+      "type": "landmark",
+      "role": "contentinfo",
+      "label": null,
+      "selector": "#contentinfo"
+    }
+  ]
+}
diff --git a/expectations/section-alone-is-ignored.json b/expectations/section-alone-is-ignored.json
new file mode 100644
index 0000000..495e72d
--- /dev/null
+++ b/expectations/section-alone-is-ignored.json
@@ -0,0 +1,3 @@
+{
+  "expected": []
+}
diff --git a/expectations/section-aria-label.json b/expectations/section-aria-label.json
new file mode 100644
index 0000000..9589889
--- /dev/null
+++ b/expectations/section-aria-label.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "region",
+      "label": "Naughty invisible label",
+      "selector": "body > section"
+    }
+  ]
+}
diff --git a/expectations/section-aria-labelledby.json b/expectations/section-aria-labelledby.json
new file mode 100644
index 0000000..40adf42
--- /dev/null
+++ b/expectations/section-aria-labelledby.json
@@ -0,0 +1,10 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "region",
+      "label": "All About Apples",
+      "selector": "body > section"
+    }
+  ]
+}
diff --git a/expectations/structural-elements.json b/expectations/structural-elements.json
new file mode 100644
index 0000000..603e370
--- /dev/null
+++ b/expectations/structural-elements.json
@@ -0,0 +1,34 @@
+{
+  "expected": [
+    {
+      "type": "landmark",
+      "role": "banner",
+      "label": null,
+      "selector": "body > header"
+    },
+    {
+      "type": "landmark",
+      "role": "complementary",
+      "label": null,
+      "selector": "body > aside"
+    },
+    {
+      "type": "landmark",
+      "role": "navigation",
+      "label": null,
+      "selector": "body > nav"
+    },
+    {
+      "type": "landmark",
+      "role": "main",
+      "label": null,
+      "selector": "body > main"
+    },
+    {
+      "type": "landmark",
+      "role": "contentinfo",
+      "label": null,
+      "selector": "body > footer"
+    }
+  ]
+}
diff --git a/fixtures/application-alone-on-body-is-ignored.html b/fixtures/application-alone-on-body-is-ignored.html
new file mode 100644
index 0000000..3d3f6c4
--- /dev/null
+++ b/fixtures/application-alone-on-body-is-ignored.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body role="application">
+		<button>Frag!</button>
+		<!-- The 'application' role was changed to no longer be a landmark
+		     as of WAI-ARIA 1.1 -->
+	</body>
+</html>
diff --git a/fixtures/aria-labelledby-multiple-idrefs.html b/fixtures/aria-labelledby-multiple-idrefs.html
new file mode 100644
index 0000000..cbae98f
--- /dev/null
+++ b/fixtures/aria-labelledby-multiple-idrefs.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title>World of wombats - Looking after your wombat</title>
+	</head>
+	<body>
+		<header>
+			<h1 id="site-title">World of wombats</h1>
+			<nav aria-labelledby="site-title">
+				<p>(Site navigation links.)</p>
+			</nav>
+		</header>
+		<main aria-labelledby="page-title">
+			<h2 id="page-title">Looking after your wombat</h2>
+
+			<nav aria-labelledby="page-title page-navigation">
+				<h3 id="page-navigation">Topics</h3>
+				<ul>
+					<li><a href="#eat">What do wombats like to eat?</a></li>
+					<li><a href="#sleep">How much do wombats sleep?</a></li>
+				</ul>
+			</nav>
+
+			<h3 id="eat">What do wombats like to eat?</h3>
+			<p>Things</p>
+
+			<h3 id="sleep">How much do wombats sleep?</h3>
+			<p>A bit</p>
+		</main>
+		<footer>
+			Footer
+		</footer>
+	</body>
+</html>
diff --git a/fixtures/article-is-ignored.html b/fixtures/article-is-ignored.html
new file mode 100644
index 0000000..5aa2251
--- /dev/null
+++ b/fixtures/article-is-ignored.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<article>
+			<p>Articles should be ignored.</p>
+		</article>
+	</body>
+</html>
diff --git a/fixtures/aside-alone-is-recognised.html b/fixtures/aside-alone-is-recognised.html
new file mode 100644
index 0000000..8c8d69b
--- /dev/null
+++ b/fixtures/aside-alone-is-recognised.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<aside>
+			<p>An aside maps to a complementary region.</p>
+		</aside>
+	</body>
+</html>
diff --git a/fixtures/aside-aria-labelledby.html b/fixtures/aside-aria-labelledby.html
new file mode 100644
index 0000000..60a3c21
--- /dev/null
+++ b/fixtures/aside-aria-labelledby.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<aside aria-labelledby="aside-heading">
+			<h1 id="aside-heading">And another thing...</h1>
+			<p>An aside maps to a complementary region.</p>
+		</aside>
+	</body>
+</html>
diff --git a/fixtures/digital-publishing-roles.html b/fixtures/digital-publishing-roles.html
new file mode 100644
index 0000000..11a52af
--- /dev/null
+++ b/fixtures/digital-publishing-roles.html
@@ -0,0 +1,125 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title>Example Book</title>
+	</head>
+	<body>
+		<h1>Example Book</h1>
+		<p>This isn't necessarily the best way to mark up a book (the parts should be more semantically and user-visible, i.e. via visible headings, with a correctly-nested hierarchy, and <code>aria-labelledby</code>), but the way it's done here does provide a way to test various features of the extension with these landmark roles.</p>
+
+		<div role="doc-part" aria-label="Frontmatter">
+			<nav role="doc-toc">
+				<h2>Table of Contents</h2>
+				<p>&hellip;</p>
+			</nav>
+
+			<nav role="doc-pagelist">
+				<h2>Pagelist</h2>
+				<p>&hellip;</p>
+			</nav>
+
+			<div role="doc-preface">
+				<h2>Preface</h2>
+				<p>&hellip;</p>
+			</div>
+
+			<div role="doc-foreword">
+				<h2>Foreword</h2>
+				<p>&hellip;</p>
+			</div>
+
+			<div role="doc-acknowledgements">
+				<h2>Acknowledgements</h2>
+				<p>&hellip;</p>
+			</div>
+
+			<div role="doc-prologue">
+				<h2>Prologue</h2>
+				<p>&hellip;</p>
+			</div>
+
+			<div role="doc-introduction">
+				<h2>Introduction</h2>
+				<p>&hellip;</p>
+			</div>
+		</div>
+
+		<div role="doc-part" aria-label="Mainmatter">
+			<section role="doc-chapter" aria-labelledby="head-chapter-1">
+				<h2 id="head-chapter-1">Beginnings</h2>
+				<p>&hellip;</p>
+			</section>
+
+			<section role="doc-chapter" aria-labelledby="head-chapter-2">
+				<h2 id="head-chapter-2">Middles</h2>
+				<p>&hellip;</p>
+			</section>
+
+			<section role="doc-chapter" aria-labelledby="head-chapter-3">
+				<h2 id="head-chapter-3">Endings</h2>
+				<p>&hellip;</p>
+			</section>
+
+			<section role="doc-conclusion">
+				<h2>Conclusion</h2>
+				<p>The end.</p>
+			</section>
+		</div>
+
+		<div role="doc-part" aria-label="Backmatter">
+			<div role="doc-epilogue">
+				<h2>Epilogue</h2>
+				<p>&hellip;</p>
+			</div>
+
+			<div role="doc-afterword">
+				<h2>Afterword</h2>
+				<p>And so it was&hellip;</p>
+			</div>
+
+			<div role="doc-endnotes">
+				<h2>Endnotes</h2>
+				<p>&hellip;</p>
+			</div>
+
+			<div role="doc-bibliography" aria-labelledby="head-bibliography">
+				<h2 id="head-bibliography">References</h2>
+				<p>To what we referred.</p>
+			</div>
+
+			<dl role="doc-glossary">
+				<dt role="term">Slartibartfast</dt>
+				<dd role="definition">A name that is not important.</dd>
+			</dl>
+
+			<nav role="doc-index">
+				<h2>Index</h2>
+				<p>&hellip;</p>
+			</nav>
+
+			<div role="doc-credits">
+				<h2>Credits</h2>
+				<ul>
+					<li>Someone</li>
+					<li>Something</li>
+				</ul>
+			</div>
+
+			<div role="doc-errata">
+				<h2>Errata</h2>
+				<p>&hellip;</p>
+			</div>
+
+			<div role="doc-appendix" aria-labelledby="head-appendix-a">
+				<h2 id="head-appendix-a">Technical specification</h2>
+				<p>Like in the Amiga manual :-).</p>
+			</div>
+
+			<div role="doc-appendix" aria-labelledby="head-appendix-b">
+				<h2 id="head-appendix-b">Detailed schematics</h2>
+				<p>Like in the Amiga manual :-).</p>
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/fixtures/footer-in-blockquote-is-ignored.html b/fixtures/footer-in-blockquote-is-ignored.html
new file mode 100644
index 0000000..e3f5dc6
--- /dev/null
+++ b/fixtures/footer-in-blockquote-is-ignored.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<blockquote>
+			<p>Content</p>
+			<footer>
+				<p>Attribution</p>
+			</footer>
+		</blockquote>
+	</body>
+</html>
diff --git a/fixtures/form-alone-is-ignored.html b/fixtures/form-alone-is-ignored.html
new file mode 100644
index 0000000..5d4e5ff
--- /dev/null
+++ b/fixtures/form-alone-is-ignored.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<form action="blah">
+			<p>The form with no name.</p>
+		</form>
+	</body>
+</html>
diff --git a/fixtures/form-aria-label.html b/fixtures/form-aria-label.html
new file mode 100644
index 0000000..25d375a
--- /dev/null
+++ b/fixtures/form-aria-label.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<form action="blah" aria-label="Contact Us">
+			<p>A form with a name.</p>
+		</form>
+	</body>
+</html>
diff --git a/fixtures/form-aria-labelledby.html b/fixtures/form-aria-labelledby.html
new file mode 100644
index 0000000..ae79bc3
--- /dev/null
+++ b/fixtures/form-aria-labelledby.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<form action="blah" aria-labelledby="form-heading">
+			<h1 id="form-heading">Report a Fault</h1>
+			<p>A form with a visible name for all folk!</p>
+		</form>
+	</body>
+</html>
diff --git a/fixtures/header-containing-nav-nav-search.html b/fixtures/header-containing-nav-nav-search.html
new file mode 100644
index 0000000..5ec952e
--- /dev/null
+++ b/fixtures/header-containing-nav-nav-search.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<header>
+			Page Header
+			<nav>
+				Navigation 1
+			</nav>
+			<nav>
+				Navigation 2
+				<div role="search">
+					Finder
+				</div>
+			</nav>
+		</header>
+		<main>
+			Content
+		</main>
+		<footer>
+			The End
+		</footer>
+	</body>
+</html>
diff --git a/fixtures/header-in-blockquote-is-ignored.html b/fixtures/header-in-blockquote-is-ignored.html
new file mode 100644
index 0000000..cb7b767
--- /dev/null
+++ b/fixtures/header-in-blockquote-is-ignored.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<blockquote>
+			<header>
+				<h1>Attention</h1>
+			</header>
+			<p>Content</p>
+		</blockquote>
+	</body>
+</html>
diff --git a/fixtures/hidden-by-css-display-none-inline.html b/fixtures/hidden-by-css-display-none-inline.html
new file mode 100644
index 0000000..6df6ed5
--- /dev/null
+++ b/fixtures/hidden-by-css-display-none-inline.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<header style="display: none;">
+			<h1>Visually-hidden header</h1>
+		</header>
+		<main>
+			<p>Main content</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/hidden-by-css-display-none-nested.html b/fixtures/hidden-by-css-display-none-nested.html
new file mode 100644
index 0000000..3d2a5a1
--- /dev/null
+++ b/fixtures/hidden-by-css-display-none-nested.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+		<style>
+			.hide {
+				display: none;
+			}
+		</style>
+	</head>
+	<body>
+		<div class="hide">
+			<header>
+				<h1>Visually-hidden header</h1>
+			</header>
+		</div>
+		<main>
+			<p>Main content</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/hidden-by-css-display-none.html b/fixtures/hidden-by-css-display-none.html
new file mode 100644
index 0000000..683cf9d
--- /dev/null
+++ b/fixtures/hidden-by-css-display-none.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+		<style>
+			header {
+				display: none;
+			}
+		</style>
+	</head>
+	<body>
+		<header>
+			<h1>Visually-hidden header</h1>
+		</header>
+		<main>
+			<p>Main content</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/hidden-by-css-visibility-hidden.html b/fixtures/hidden-by-css-visibility-hidden.html
new file mode 100644
index 0000000..5c19cb5
--- /dev/null
+++ b/fixtures/hidden-by-css-visibility-hidden.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+		<style>
+			footer {
+				visibility: hidden;
+			}
+		</style>
+	</head>
+	<body>
+		<main>
+			<p>Main content</p>
+		</main>
+		<footer>
+			<p>Visually-hidden footer</p>
+		</footer>
+	</body>
+</html>
diff --git a/fixtures/hidden-by-html-hidden-attribute-nested.html b/fixtures/hidden-by-html-hidden-attribute-nested.html
new file mode 100644
index 0000000..ec1ac1d
--- /dev/null
+++ b/fixtures/hidden-by-html-hidden-attribute-nested.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<div hidden>
+			<header>
+				<h1>Visually-hidden header</h1>
+			</header>
+		</div>
+		<main>
+			<p>Main content</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/hidden-by-html-hidden-attribute.html b/fixtures/hidden-by-html-hidden-attribute.html
new file mode 100644
index 0000000..dc73eab
--- /dev/null
+++ b/fixtures/hidden-by-html-hidden-attribute.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<header hidden>
+			<h1>Visually-hidden header</h1>
+		</header>
+		<main>
+			<p>Main content</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/landmark-role-on-body.html b/fixtures/landmark-role-on-body.html
new file mode 100644
index 0000000..09c1103
--- /dev/null
+++ b/fixtures/landmark-role-on-body.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body role="region" aria-labelledby="title">
+		<h1 id="title">Unlikely to happen?</h1>
+		<p>Hello.</p>
+	</body>
+</html>
diff --git a/fixtures/main-alone-is-recognised.html b/fixtures/main-alone-is-recognised.html
new file mode 100644
index 0000000..0aa9c44
--- /dev/null
+++ b/fixtures/main-alone-is-recognised.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<main>
+			<p>Main content</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/main-aria-label.html b/fixtures/main-aria-label.html
new file mode 100644
index 0000000..b85a06a
--- /dev/null
+++ b/fixtures/main-aria-label.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<main aria-label="Slartibartfast">
+			<p>Main content</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/main-aria-labelledby.html b/fixtures/main-aria-labelledby.html
new file mode 100644
index 0000000..0c16864
--- /dev/null
+++ b/fixtures/main-aria-labelledby.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<main aria-labelledby="main-name">
+			<h1 id="main-name">Kate</h1>
+			<p>Main content</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/nested-siblings.html b/fixtures/nested-siblings.html
new file mode 100644
index 0000000..8d61ffc
--- /dev/null
+++ b/fixtures/nested-siblings.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<main>
+			<div>
+				<div role="region" aria-label="Sibling One"></div>
+			</div>
+			<div>
+				<div role="region" aria-label="Sibling Two"></div>
+			</div>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/nesting-depth-restoration.html b/fixtures/nesting-depth-restoration.html
new file mode 100644
index 0000000..b1daf10
--- /dev/null
+++ b/fixtures/nesting-depth-restoration.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="UTF-8">
+	<title></title>
+</head>
+<body>
+	<header>
+		<h1>Nesting Depth Restoration</h1>
+	</header>
+	<main>
+		<h2>Main</h2>
+		<p>Top-level content.</p>
+		<section aria-labelledby="outer-section-header">
+			<h3 id="outer-section-header">Outer section header</h3>
+			<p>Section within main.</p>
+			<section aria-labelledby="inner-section-header">
+				<h4 id="inner-section-header">Inner section header</h4>
+				<p>Section inside the section within main.</p>
+			</section>
+		</section>
+	</main>
+	<footer>
+		<p>Footer</p>
+	</footer>
+</body>
+</html>
diff --git a/fixtures/no-landmarks-just-divs.html b/fixtures/no-landmarks-just-divs.html
new file mode 100644
index 0000000..2900fd4
--- /dev/null
+++ b/fixtures/no-landmarks-just-divs.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<div id="header">
+			<h1>Heading</h1>
+		</div>
+		<div id="main">
+			<p>Content</p>
+		</div>
+		<div id="footer">
+			<p>Attribution</p>
+		</div>
+	</body>
+</html>
diff --git a/fixtures/prefer-aria-labelledby.html b/fixtures/prefer-aria-labelledby.html
new file mode 100644
index 0000000..8ebb2ea
--- /dev/null
+++ b/fixtures/prefer-aria-labelledby.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<main aria-labelledby="main-name" aria-label="Bob">
+			<h1 id="main-name">Kate</h1>
+			<p>Say my name.</p>
+		</main>
+	</body>
+</html>
diff --git a/fixtures/region-alone-is-ignored.html b/fixtures/region-alone-is-ignored.html
new file mode 100644
index 0000000..fd3dc76
--- /dev/null
+++ b/fixtures/region-alone-is-ignored.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<div role="region">
+			<p>A region with no name is not.</p>
+		</div>
+	</body>
+</html>
diff --git a/fixtures/region-aria-label.html b/fixtures/region-aria-label.html
new file mode 100644
index 0000000..b8c39af
--- /dev/null
+++ b/fixtures/region-aria-label.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<div role="region" aria-label="Reluctant Region">
+			<p>A region with an invisible name is reluctant.</p>
+		</section>
+	</body>
+</html>
diff --git a/fixtures/region-aria-labelledby.html b/fixtures/region-aria-labelledby.html
new file mode 100644
index 0000000..5317abb
--- /dev/null
+++ b/fixtures/region-aria-labelledby.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<div role="region" aria-labelledby="region-heading">
+			<h1 id="region-heading">A Good Region</h1>
+			<p>A region with a visible name is grand.</p>
+		</div>
+	</body>
+</html>
diff --git a/fixtures/roles-land.html b/fixtures/roles-land.html
new file mode 100644
index 0000000..92036b5
--- /dev/null
+++ b/fixtures/roles-land.html
@@ -0,0 +1,46 @@
+<!DOCTYPE HTML>
+
+<html>
+<head>
+	<title>ARIA landmark role use example</title>
+
+<style type="text/css">
+	div {
+		padding: 2%;
+		border: solid 2px #000000;
+		margin: 10px;
+		font: bold larger "Courier New", Courier, monospace;
+		white-space: inherit;
+	}
+	#banner {height:100px;background:#ff8c00 }
+	#navigation {float:left;
+		width:15%;
+		height:400px;
+		background:#7fff00}
+	#main {float:left;
+		width:50%;
+		height:400px;
+		background:#f0e68c}
+	#complementary {float:left;width:15%;height:400px;background:#4682b4}
+	#contentinfo {clear:both;height:100px;background:#ffb6c1}
+	#search {background:#ffff00;font-size:small;}
+	#form {background:#fafad2;font-size:medium;}
+	#application {background:#f5f5f5;font-size:medium;width:300px;height:200px}
+</style>
+
+</head>
+
+<body>
+<div id="banner" role="banner">banner</div>
+<div id="navigation" role="navigation">navigation</div>
+<div id="main" role="main">main
+<div role="application" id="application">application</div> 
+</div>
+<div id="complementary" role="complementary"> complementary
+<div role="form" id="form"> form
+<div id="search" role="search">search</div>
+</div></div>
+<div id="contentinfo" role="contentinfo">contentinfo</div>
+
+</body>
+</html>
diff --git a/fixtures/section-alone-is-ignored.html b/fixtures/section-alone-is-ignored.html
new file mode 100644
index 0000000..1a651eb
--- /dev/null
+++ b/fixtures/section-alone-is-ignored.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<section>
+			<p>The section with no name.</p>
+		</section>
+	</body>
+</html>
diff --git a/fixtures/section-aria-label.html b/fixtures/section-aria-label.html
new file mode 100644
index 0000000..472cfab
--- /dev/null
+++ b/fixtures/section-aria-label.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<section aria-label="Naughty invisible label">
+			<p>A section with an invisible name.</p>
+		</section>
+	</body>
+</html>
diff --git a/fixtures/section-aria-labelledby.html b/fixtures/section-aria-labelledby.html
new file mode 100644
index 0000000..0eb10a7
--- /dev/null
+++ b/fixtures/section-aria-labelledby.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title></title>
+	</head>
+	<body>
+		<section aria-labelledby="section-heading">
+			<h1 id="section-heading">All About Apples</h1>
+			<p>A section with a twee visible name for all folk.</p>
+		</section>
+	</body>
+</html>
diff --git a/fixtures/structural-elements.html b/fixtures/structural-elements.html
new file mode 100644
index 0000000..6098bb0
--- /dev/null
+++ b/fixtures/structural-elements.html
@@ -0,0 +1,31 @@
+<!DOCTYPE HTML>
+
+<html>
+<head>
+	<title>structural elemnets</title>
+	<style>
+	main, header, footer, aside, section, article, nav, details, summary {border: 2px solid #7b68ee;margin:10px;padding:5px;display:block;}
+	
+	</style>
+	
+</head>
+
+<body>
+<header> this is a header </header>
+<aside> this is an aside </aside>
+<nav> this is a nav </nav>
+<main>this is the main <a href="#">content</a>
+<section> 
+<header> this is a header inside a section </header>
+this is a section
+<footer> this is a footer inside a section</footer>
+</section>
+<article> 
+<header> this is a header inside an article </header>
+this is an article
+<footer> this is a footer inside an article</footer>
+</section></article>
+</main>
+<footer> this is a footer</footer>
+</body>
+</html>
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..3f008ed
--- /dev/null
+++ b/index.js
@@ -0,0 +1,24 @@
+'use strict'
+const path = require('path')
+const tap = require('tap')
+const runner = require('./lib/runner')
+const converters = require('./lib/converters')
+
+const fixtures = path.join(__dirname, 'fixtures')
+const expectations = path.join(__dirname, 'expectations')
+
+const landmarksRunner = function(scanner) {
+	runner(tap, fixtures, expectations, converters.landmarks, scanner)
+}
+
+const a11yOutlineRunner = function(scanner) {
+	runner(tap, fixtures, expectations, converters.a11yOutline, scanner)
+}
+
+module.exports = {
+	'runners': {
+		'landmarks': landmarksRunner,
+		'a11yOutline': a11yOutlineRunner
+	},
+	'converters': converters
+}
diff --git a/lib/converters.js b/lib/converters.js
new file mode 100644
index 0000000..14f0780
--- /dev/null
+++ b/lib/converters.js
@@ -0,0 +1,64 @@
+'use strict'
+// Converting to Landmarks format
+
+function convertLandmarksCore(landmarksFormatData, testSuiteFormatData, depth) {
+	for (const landmark of testSuiteFormatData) {
+		landmarksFormatData.push({
+			'depth': depth,
+			'role': landmark.role,
+			'label': landmark.label,
+			'selector': landmark.selector
+		})
+		if (landmark.contains) {
+			convertLandmarksCore(landmarksFormatData, landmark.contains, depth + 1)
+		}
+	}
+}
+
+function convertExpectationToLandmarksFormat(testSuiteFormatData) {
+	const landmarksFormatData = []
+	convertLandmarksCore(landmarksFormatData, testSuiteFormatData, 0)
+	return landmarksFormatData
+}
+
+
+// Converting to a11y-outline format
+
+let hrefCounter = 0
+
+function convertA11yOutlineCore(data) {
+	for (const record of data) {
+		record.children = record.hasOwnProperty('contains')
+			? record.contains
+			: []
+		delete record.contains
+
+		record.label = record.label !== null
+			? record.label + ' ' + record.role
+			: record.role
+
+		delete record.role
+		delete record.type
+		delete record.selector
+
+		record.element = {}
+
+		record.href = '#' + hrefCounter
+		hrefCounter += 1
+
+		if (record.children) {
+			convertA11yOutlineCore(record.children)
+		}
+	}
+}
+
+function convertExpectationToA11yOutlineFormat(testSuiteFormatData) {
+	convertA11yOutlineCore(testSuiteFormatData)
+	return testSuiteFormatData
+}
+
+
+module.exports = {
+	'landmarks': convertExpectationToLandmarksFormat,
+	'a11yOutline': convertExpectationToA11yOutlineFormat
+}
diff --git a/lib/iterator.js b/lib/iterator.js
new file mode 100644
index 0000000..06c7bb8
--- /dev/null
+++ b/lib/iterator.js
@@ -0,0 +1,29 @@
+'use strict'
+const fs = require('fs')
+const path = require('path')
+
+module.exports = function iterator(fixturesDir, expectationsDir, run) {
+	if (!fs.existsSync(fixturesDir)) {
+		throw Error(`Fixtures dir ${fixturesDir} doesn't exist`)
+	}
+
+	if (!fs.existsSync(expectationsDir)) {
+		throw Error(`Expectations dir ${expectationsDir} doesn't exist`)
+	}
+
+	if (typeof run !== 'function') {
+		throw Error('Code to run for each test is not a function')
+	}
+
+	const files = fs.readdirSync(fixturesDir)
+
+	for (const htmlFile of files) {
+		const baseName = htmlFile.substring(0, htmlFile.length - 5)
+		const testName = baseName.charAt(0).toUpperCase()
+			+ baseName.slice(1).replace(/-/g, ' ')
+		const expectation = require(
+			path.join(expectationsDir, baseName + '.json')).expected
+		const html = fs.readFileSync(path.join(fixturesDir, htmlFile), 'utf-8')
+		run(testName, html, expectation)
+	}
+}
diff --git a/lib/runner.js b/lib/runner.js
new file mode 100644
index 0000000..c665084
--- /dev/null
+++ b/lib/runner.js
@@ -0,0 +1,36 @@
+'use strict'
+const iterator = require('./iterator')
+const scan = require('./scan').scanAndReturnResult
+
+module.exports = function runner(nodeTap, fixturesDir, expectationsDir, converter, scanner) {
+	if (!nodeTap) {
+		throw Error('node-tap instance not provided')
+	}
+
+	if (typeof converter !== 'function') {
+		throw Error('converter not a function')
+	}
+
+	if (typeof converter([]) !== 'object') {
+		throw Error('converter must return an object')
+	}
+
+	if (typeof scanner !== 'function') {
+		throw Error('scanner not a function')
+	}
+
+	const tests = []
+
+	iterator(fixturesDir, expectationsDir, (testName, fixture, expectation) => {
+		const convertedExpectation = converter(expectation)
+		const result = scan(scanner, fixture, convertedExpectation)
+
+		tests.push(function() {
+			nodeTap.strictSame(result, convertedExpectation, testName)
+		})
+	})
+
+	for (const test of tests) {
+		test()
+	}
+}
diff --git a/lib/scan.js b/lib/scan.js
new file mode 100644
index 0000000..294c82a
--- /dev/null
+++ b/lib/scan.js
@@ -0,0 +1,65 @@
+'use strict'
+const assert = require('assert')
+const diff = require('diff')
+const jsdom = require('jsdom')
+const { JSDOM } = jsdom
+
+function scanAndReturnResult(scanner, fixture, expectation) {
+	if (typeof scanner !== 'function') {
+		throw Error('Scanner is not a function')
+	}
+
+	if (typeof fixture !== 'string') {
+		throw Error('Fixture must be an (HTML) string')
+	}
+
+	if (typeof expectation === 'object') {
+		try {
+			JSON.stringify(expectation)
+		} catch (error) {
+			throw Error('Expectation is not a serialisable object')
+		}
+	} else {
+		throw Error('Expectation is not an object')
+	}
+
+	const dom = new JSDOM(fixture)
+	const result = scanner(dom.window, dom.window.document)
+
+	if (result === undefined) {
+		throw Error('Scanner did not return anything')
+	}
+
+	return result
+}
+
+function scanAndReturnPatch(scanner, fixture, expectation) {
+	const result = scanAndReturnResult(scanner, fixture, expectation)
+
+	try {
+		assert.deepStrictEqual(result, expectation)
+	} catch (error) {
+		const patch = diff
+			.createPatch(
+				'',
+				JSON.stringify(expectation, null, 2),
+				JSON.stringify(result, null, 2),
+				'expectation',
+				'result')
+			.split('\n')
+			.slice(2, -2)
+			.join('\n')
+			.replace(/\t/g, '')
+		return {
+			'matches': false,
+			'patch': patch
+		}
+	}
+
+	return { 'matches': true }
+}
+
+module.exports = {
+	'scanAndReturnResult': scanAndReturnResult,
+	'scanAndReturnPatch': scanAndReturnPatch
+}
diff --git a/lib/tableEntryMaker.js b/lib/tableEntryMaker.js
new file mode 100644
index 0000000..8500423
--- /dev/null
+++ b/lib/tableEntryMaker.js
@@ -0,0 +1,7 @@
+'use strict'
+module.exports = function tableEntryMaker(testName, patch) {
+	const resultText = patch
+		? `<pre><code>${patch}</code></pre>`
+		: 'OK'
+	return `<tr><td>${testName}</td><td>${resultText}</td></tr>`
+}
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..c7ea368
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,3137 @@
+{
+  "name": "page-structural-semantics-scanner-tests",
+  "version": "0.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@babel/code-frame": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/generator": {
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+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.4.0.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.4.0",
+        "jsesc": "^2.5.1",
+        "lodash": "^4.17.11",
+        "source-map": "^0.5.0",
+        "trim-right": "^1.0.1"
+      },
+      "dependencies": {
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+        }
+      }
+    },
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+      "dev": true,
+      "requires": {
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+        "@babel/template": "^7.1.0",
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+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      }
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+        "@babel/types": "^7.4.0"
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+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..512c499
--- /dev/null
+++ b/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "page-structural-semantics-scanner-tests",
+  "version": "0.0.0",
+  "private": true,
+  "description": "Test and benchmarking suite for code that extracts information on the structure of web pages, such as landmarks, headings and articles",
+  "license": "MIT",
+  "author": "Matthew Tylee Atkinson",
+  "main": "index.js",
+  "scripts": {
+    "pretest": "eslint .",
+    "test": "tap --no-esm --coverage test",
+    "test:quick": "tap --no-esm test || true"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "npm test"
+    }
+  },
+  "devDependencies": {
+    "diff": "~4.0",
+    "glob": "~7.1",
+    "husky": "~1.3",
+    "jsdom": "~14.0",
+    "tap": "~12.6"
+  }
+}
diff --git a/test/converters.test.js b/test/converters.test.js
new file mode 100644
index 0000000..4d5f003
--- /dev/null
+++ b/test/converters.test.js
@@ -0,0 +1,162 @@
+'use strict'
+const tap = require('tap')
+const converters = require('../lib/converters')
+
+const testSuiteFormatExample = {
+	'expected': [
+		{
+			'type': 'landmark',
+			'role': 'banner',
+			'label': null,
+			'selector': 'body > header',
+			'contains': [
+				{
+					'type': 'landmark',
+					'role': 'navigation',
+					'label': 'World of wombats',
+					'selector': 'body > header > nav'
+				}
+			]
+		},
+		{
+			'type': 'landmark',
+			'role': 'main',
+			'label': 'Looking after your wombat',
+			'selector': 'body > main',
+			'contains': [
+				{
+					'type': 'landmark',
+					'role': 'navigation',
+					'label': 'Looking after your wombat Topics',
+					'selector': 'body > main > nav:nth-child(2)'
+				}
+			]
+		},
+		{
+			'type': 'landmark',
+			'role': 'contentinfo',
+			'label': null,
+			'selector': 'body > footer'
+		}
+	]
+}
+
+const landmarksFormatExample = {
+	'expected': [
+		{
+			'depth': 0,
+			'role': 'banner',
+			'label': null,
+			'selector': 'body > header'
+		},
+		{
+			'depth': 1,
+			'role': 'navigation',
+			'label': 'World of wombats',
+			'selector': 'body > header > nav'
+		},
+		{
+			'depth': 0,
+			'role': 'main',
+			'label': 'Looking after your wombat',
+			'selector': 'body > main'
+		},
+		{
+			'depth': 1,
+			'role': 'navigation',
+			'label': 'Looking after your wombat Topics',
+			'selector': 'body > main > nav:nth-child(2)'
+		},
+		{
+			'depth': 0,
+			'role': 'contentinfo',
+			'label': null,
+			'selector': 'body > footer'
+		}
+	]
+}
+
+tap.strictSame(
+	converters.landmarks(testSuiteFormatExample.expected),
+	landmarksFormatExample.expected,
+	'test data converted to Landmarks format')
+
+
+/* a11y-outline: the following is some data extracted from the browser.
+
+[
+  {
+    'label': 'banner',
+    'href': '#0',
+    'children': [
+      {
+        'label': 'World of wombats navigation',
+        'href': '#1',
+        'children': [],
+        'element': {}
+      }
+    ],
+    'element': {}
+  },
+  {
+    'label': 'Looking after your wombat main',
+    'href': '#2',
+    'children': [
+      {
+        'label': 'Looking after your wombat Topics navigation',
+        'href': '#3',
+        'children': [],
+        'element': {}
+      }
+    ],
+    'element': {}
+  },
+  {
+    'label': 'contentinfo',
+    'href': '#4',
+    'children': [],
+    'element': {}
+  }
+] */
+
+const a11yOutlineFormatExample = {
+	'expected': [
+		{
+			'label': 'banner',
+			'href': '#0',
+			'children': [
+				{
+					'label': 'World of wombats navigation',
+					'href': '#1',
+					'children': [],
+					'element': {}
+				}
+			],
+			'element': {}
+		},
+		{
+			'label': 'Looking after your wombat main',
+			'href': '#2',
+			'children': [
+				{
+					'label': 'Looking after your wombat Topics navigation',
+					'href': '#3',
+					'children': [],
+					'element': {}
+				}
+			],
+			'element': {}
+		},
+		{
+			'label': 'contentinfo',
+			'href': '#4',
+			'children': [],
+			'element': {}
+		}
+	]
+}
+
+tap.strictSame(
+	converters.a11yOutline(testSuiteFormatExample.expected),
+	a11yOutlineFormatExample.expected,
+	'test data converted to a11y-outline format')
diff --git a/test/iterator.test.js b/test/iterator.test.js
new file mode 100644
index 0000000..cdd2704
--- /dev/null
+++ b/test/iterator.test.js
@@ -0,0 +1,47 @@
+'use strict'
+const path = require('path')
+
+const tap = require('tap')
+const iterator = require('../lib/iterator')
+
+const baseDir = path.join(__dirname, 'simple')
+const validFixturesDir = path.join(baseDir, 'fixtures')
+const validExpectationsDir = path.join(baseDir, 'expectations')
+
+tap.throws(function() {
+	iterator()
+}, 'iterator requires test fixtures dir')
+
+tap.throws(function() {
+	iterator(validFixturesDir)
+}, 'iterator requires test expectations dir')
+
+tap.throws(function() {
+	iterator(validFixturesDir, validExpectationsDir)
+}, 'iterator requires a function to run')
+
+tap.doesNotThrow(function() {
+	iterator(validFixturesDir, validExpectationsDir, () => {})
+}, 'iterator accepts valid fixtures and expectations dirs and function')
+
+tap.test('iterator gives the code to run the right stuff', t => {
+	const expectedCalls = [
+		['Simple 1', '<p>Simple HTML fixture 1</p>\n', { 'expectation': 1 }],
+		['Simple 2', '<p>Simple HTML fixture 2</p>\n', { 'expectation': 2 }]
+	]
+
+	const calls = []
+
+	function runOnEachTest(testName, testFixture, testExpectation) {
+		calls.push([testName, testFixture, testExpectation])
+	}
+
+	iterator(validFixturesDir, validExpectationsDir, runOnEachTest)
+
+	t.strictSame(
+		calls,
+		expectedCalls,
+		'iterator makes expected calls')
+
+	t.end()
+})
diff --git a/test/runner.test.js b/test/runner.test.js
new file mode 100644
index 0000000..30550a9
--- /dev/null
+++ b/test/runner.test.js
@@ -0,0 +1,57 @@
+'use strict'
+const path = require('path')
+const tap = require('tap')
+const runner = require('../lib/runner')
+
+const baseDir = path.join(__dirname, 'simple')
+const validFixturesDir = path.join(baseDir, 'fixtures')
+const validExpectationsDir = path.join(baseDir, 'expectations')
+const validConverter = expectation => expectation  // pass-through
+
+const fakeTapCalls = []
+const fakeTap = {
+	strictSame: (found, wanted, message, extra) => {
+		fakeTapCalls.push([found, wanted, message, extra])
+	}
+}
+
+tap.throws(function() {
+	runner()
+}, 'runner needs a node-tap instance')  // TODO check type?
+
+tap.throws(function() {
+	runner(fakeTap, validFixturesDir, validExpectationsDir)
+}, 'runner needs fixtures and expectations directories')
+
+tap.throws(function() {
+	runner(fakeTap, validFixturesDir, validExpectationsDir, () => 42)
+}, 'runner needs a converter that returns an object')
+
+tap.doesNotThrow(function() {
+	runner(fakeTap, validFixturesDir, validExpectationsDir, validConverter, () => 42)
+}, 'runner accepts all needed arguments')
+
+tap.test('runner calls scanner', t => {
+	let scanCalls = 0
+	const fakeScanner = function(win, doc) {
+		scanCalls = scanCalls + 1
+		return [win, doc]
+	}
+	runner(fakeTap, validFixturesDir, validExpectationsDir, validConverter, fakeScanner)
+	t.equal(scanCalls, 2, 'expected two calls to sanner')
+	t.end()
+})
+
+tap.test('runner makes expected calls to tap', t => {
+	fakeTapCalls.length = 0
+	const expectedCalls = [
+		[42, { expectation: 1 }, 'Simple 1', undefined],
+		[42, { expectation: 2 }, 'Simple 2', undefined]
+	]
+	runner(fakeTap, validFixturesDir, validExpectationsDir, validConverter, () => 42)
+	t.strictSame(
+		fakeTapCalls,
+		expectedCalls,
+		'calls were as expected')
+	t.end()
+})
diff --git a/test/scan.test.js b/test/scan.test.js
new file mode 100644
index 0000000..9f562f2
--- /dev/null
+++ b/test/scan.test.js
@@ -0,0 +1,115 @@
+'use strict'
+const tap = require('tap')
+const scan = require('../lib/scan').scanAndReturnPatch
+
+const invalidScanner = 42
+const invalidFixture = 42
+const invalidExpectation = 'not an object'
+
+const validScanner = function(win, doc) {
+	// This is used to check the scanner function is passed window and body
+	return {
+		'window-has-location': !!win.location,
+		'document-has-body': !!doc.body
+	}
+}
+
+const validFixture = `
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="UTF-8">
+	<title></title>
+</head>
+<body>
+	Hello :-)
+</body>
+</html>`
+
+const validExpectation = {
+	'window-has-location': true,
+	'document-has-body': true
+}
+
+tap.throws(function() {
+	scan(invalidScanner, validFixture, validExpectation)
+}, 'scanner is required to be a function')
+
+tap.throws(function() {
+	scan(validScanner, invalidFixture, validExpectation)
+}, 'fixture is required to be valid HTML')
+
+tap.throws(function() {
+	scan(validScanner, validFixture, invalidExpectation)
+}, 'expectation is required to be an object')
+
+tap.throws(function() {
+	scan(() => {}, validFixture, validExpectation)
+}, 'scanner function must return something')
+
+tap.doesNotThrow(function() {
+	scan(validScanner, validFixture, validExpectation)
+}, 'parameters are all provided correctly')
+
+tap.test('scanner is passed a window and a document', t => {
+	const result = scan(validScanner, validFixture, validExpectation)
+	t.ok(result.matches, 'window has a location and document has a body')
+	t.end()
+})
+
+const fixtureA = `
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="UTF-8">
+	<title></title>
+</head>
+<body>
+	<p>Hello :-)</p>
+</body>
+</html>`
+
+const fixtureB = `
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="UTF-8">
+	<title></title>
+</head>
+<body>
+	<main>
+		<p>Hello :-)</p>
+	</main>
+</body>
+</html>`
+
+function scanner(win, doc) {
+	return {
+		'containsMain': doc.getElementsByTagName('main').length > 0
+	}
+}
+
+const expectedPatch = `--- expectation
++++ result
+@@ -1,3 +1,3 @@
+ {
+-  "containsMain": true
++  "containsMain": false
+ }`
+
+tap.test('scanning a fixture without a <main>', t => {
+	const result1 = scan(scanner, fixtureA, { containsMain: false })
+	t.ok(result1.matches, 'finds there is no <main>')
+	const result2 = scan(scanner, fixtureA, { containsMain: true })
+	t.notOk(result2.matches, 'does not find that there is a <main>')
+	t.equal(result2.patch, expectedPatch, 'creates a patch')
+	t.end()
+})
+
+tap.test('scanning a fixture with a <main>', t => {
+	const result1 = scan(scanner, fixtureB, { containsMain: true })
+	t.ok(result1.matches, 'finds that there is a <main>')
+	const result2 = scan(scanner, fixtureB, { containsMain: false })
+	t.notOk(result2.matches, 'does not find that there is no <main>')
+	t.end()
+})
diff --git a/test/simple/expectations/simple-1.json b/test/simple/expectations/simple-1.json
new file mode 100644
index 0000000..6e8a45e
--- /dev/null
+++ b/test/simple/expectations/simple-1.json
@@ -0,0 +1,5 @@
+{
+  "expected": {
+    "expectation": 1
+  }
+}
diff --git a/test/simple/expectations/simple-2.json b/test/simple/expectations/simple-2.json
new file mode 100644
index 0000000..9166e41
--- /dev/null
+++ b/test/simple/expectations/simple-2.json
@@ -0,0 +1,5 @@
+{
+  "expected": {
+    "expectation": 2
+  }
+}
diff --git a/test/simple/fixtures/simple-1.html b/test/simple/fixtures/simple-1.html
new file mode 100644
index 0000000..f9fdb92
--- /dev/null
+++ b/test/simple/fixtures/simple-1.html
@@ -0,0 +1 @@
+<p>Simple HTML fixture 1</p>
diff --git a/test/simple/fixtures/simple-2.html b/test/simple/fixtures/simple-2.html
new file mode 100644
index 0000000..9c00047
--- /dev/null
+++ b/test/simple/fixtures/simple-2.html
@@ -0,0 +1 @@
+<p>Simple HTML fixture 2</p>
diff --git a/test/tableEntryMaker.test.js b/test/tableEntryMaker.test.js
new file mode 100644
index 0000000..b04164e
--- /dev/null
+++ b/test/tableEntryMaker.test.js
@@ -0,0 +1,20 @@
+'use strict'
+const tap = require('tap')
+const tableEntryMaker = require('../lib/tableEntryMaker')
+
+tap.equal(
+	tableEntryMaker('Kate'),
+	'<tr><td>Kate</td><td>OK</td></tr>',
+	'generates an html table row for a passing test')
+
+tap.equal(
+	tableEntryMaker('Bob', 'patch'),
+	'<tr><td>Bob</td><td><pre><code>patch</code></pre></td></tr>',
+	'generates an html table row for a failing with one-line patch')
+
+tap.equal(
+	tableEntryMaker('Bob', `patchLine1
+patchLine2`),
+	`<tr><td>Bob</td><td><pre><code>patchLine1
+patchLine2</code></pre></td></tr>`,
+	'generates an html table row for a failing with multi-line patch')