Allow PHPUnit 8 (#5)

.gitignore

@@ -1,4 +1,5 @@
 /.php_cs
 /.php_cs.cache
+/.phpunit.result.cache
 /composer.lock
 /vendor/

.travis.yml

@@ -14,7 +14,8 @@ php:
     - 7.0
     - 7.1
     - 7.2
-    - nightly
+    - 7.3
+    - 7.4snapshot
 
 env:
     global:

composer.json

@@ -14,7 +14,7 @@
   ],
   "require": {
     "php": "^5.5 || ^7.0",
-    "phpunit/phpunit": "^5.7.23 || ^6.4.3 || ^7.0",
+    "phpunit/phpunit": "^5.7.23 || ^6.4.3 || ^7.0 || ^8.0",
     "phpunitgoodpractices/polyfill": "^1.1"
   },
   "conflict": {

src/Constraint/XmlMatchesXsd.php

@@ -14,6 +14,8 @@
 
 if (version_compare(\PHPUnit\Runner\Version::id(), '7.0.0') < 0) {
     class_alias(XmlMatchesXsdForV5::class, XmlMatchesXsd::class);
-} else {
+} elseif (version_compare(\PHPUnit\Runner\Version::id(), '8.0.0') < 0) {
     class_alias(XmlMatchesXsdForV7::class, XmlMatchesXsd::class);
+} else {
+    class_alias(XmlMatchesXsdForV8::class, XmlMatchesXsd::class);
 }

src/Constraint/XmlMatchesXsdForV8.php

@@ -0,0 +1,142 @@
+<?php
+
+/*
+ * This file is part of PHP CS Fixer / PHPUnit Constraint XmlMatchesXsd.
+ *
+ * (c) SpacePossum
+ *     Dariusz Rumiński <[email protected]>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace PhpCsFixer\PhpunitConstraintXmlMatchesXsd\Constraint;
+
+use PHPUnit\Framework\Constraint\Constraint;
+
+/**
+ * @author SpacePossum
+ *
+ * @internal
+ */
+final class XmlMatchesXsdForV8 extends Constraint
+{
+    /**
+     * @var string[]
+     */
+    private $xmlConstraintErrors = [];
+
+    /**
+     * @var string
+     */
+    private $xsd;
+
+    /**
+     * @param string $xsd
+     */
+    public function __construct($xsd)
+    {
+        // replace first only
+        $needle = 'http://www.w3.org/2001/xml.xsd';
+        if (false !== $pos = strpos($xsd, $needle)) {
+            $xsd = substr_replace($xsd, 'file:///'.str_replace('\\', '/', __DIR__).'/xml.xsd', $pos, \strlen($needle));
+        }
+
+        $this->xsd = $xsd;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function toString(): string
+    {
+        return 'matches XSD';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function failureDescription($other): string
+    {
+        if (\is_string($other)) {
+            return sprintf("%s %s.\n%s", $other, $this->toString(), implode("\n", $this->xmlConstraintErrors));
+        }
+
+        if (\is_object($other)) {
+            $type = sprintf('%s#%s', \get_class($other), method_exists($other, '__toString') ? $other->__toString() : '');
+        } elseif (null === $other) {
+            $type = 'null';
+        } else {
+            $type = \gettype($other).'#'.$other;
+        }
+
+        return $type.' '.$this->toString();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function matches($other): bool
+    {
+        return \is_string($other)
+            ? $this->stringMatches($other)
+            : false
+        ;
+    }
+
+    /**
+     * @param string $other
+     *
+     * @return bool
+     */
+    private function stringMatches($other)
+    {
+        $internalErrors = libxml_use_internal_errors(true);
+        $disableEntities = libxml_disable_entity_loader(true);
+        libxml_clear_errors();
+
+        $dom = new \DOMDocument();
+        $dom->preserveWhiteSpace = false;
+        $dom->validateOnParse = true;
+
+        if (!@$dom->loadXML($other, LIBXML_NONET | (\defined('LIBXML_COMPACT') ? LIBXML_COMPACT : 0))) {
+            libxml_disable_entity_loader($disableEntities);
+            $this->setXMLConstraintErrors();
+            libxml_clear_errors();
+            libxml_use_internal_errors($internalErrors);
+
+            return false;
+        }
+
+        $dom->normalizeDocument();
+
+        libxml_disable_entity_loader($disableEntities);
+        libxml_clear_errors();
+
+        if (false === $result = @$dom->schemaValidateSource($this->xsd)) {
+            $this->setXMLConstraintErrors();
+        }
+
+        libxml_clear_errors();
+        libxml_use_internal_errors($internalErrors);
+
+        return $result;
+    }
+
+    private function setXMLConstraintErrors()
+    {
+        foreach (libxml_get_errors() as $error) {
+            if (LIBXML_ERR_WARNING === $error->level) {
+                $level = 'warning ';
+            } elseif (LIBXML_ERR_ERROR === $error->level) {
+                $level = 'error ';
+            } elseif (LIBXML_ERR_FATAL === $error->level) {
+                $level = 'fatal ';
+            } else {
+                $level = '';
+            }
+
+            $this->xmlConstraintErrors[] = sprintf('[%s%s] %s (line %d, column %d).', $level, $error->code, trim($error->message), $error->line, $error->column);
+        }
+    }
+}