download attribute in project schema

schema/project.json

@@ -80,6 +80,17 @@
       "format": "uri",
       "type": "string"
     },
+    "downloads": {
+      "description": "Optional list of download URLs.",
+      "type": "array",
+      "items": {
+        "type": "string",
+        "format": "uri"
+      },
+      "minItems": 1,
+      "uniqueItems": true,
+      "optional": true
+    },
     "events": {
       "description": "Event URLs related to the project.",
       "type": "array",

schema/tests/data/project/negative/downloads-empty.yaml

@@ -0,0 +1,13 @@
+audience: builder
+downloads: []
+name: "Test Project"
+level: 3
+leaders:
+  - github: "testuser1"
+  - github: "testuser2"
+pitch: A very brief, one-line description of your project
+tags:
+  - example-tag-1
+  - example-tag-2
+  - example-tag-3
+type: code

schema/tests/data/project/negative/downloads-non-unique.yaml

@@ -0,0 +1,15 @@
+audience: builder
+downloads:
+  - https://abc.com/download
+  - https://abc.com/download
+name: "Test Project"
+level: 3
+leaders:
+  - github: "testuser1"
+  - github: "testuser2"
+pitch: A very brief, one-line description of your project
+tags:
+  - example-tag-1
+  - example-tag-2
+  - example-tag-3
+type: code

schema/tests/data/project/positive/optional-properties.yaml

@@ -1,5 +1,8 @@
 audience: breaker
 demo: https://some-demo-url.com
+downloads:
+  - https://abc.com/download1
+  - https://abc.com/download2
 events:
   - 'https://example.com/event1'
   - 'https://example.com/event2'

schema/tests/project_test.py

@@ -30,6 +30,11 @@ def test_positive(project_schema):
         ("audience-empty.yaml", "'' is not one of ['breaker', 'builder', 'defender']"),
         ("audience-missing.yaml", "'audience' is a required property"),
         ("demo-none.yaml", "None is not of type 'string'"),
+        ("downloads-empty.yaml", "[] should be non-empty"),
+        (
+            "downloads-non-unique.yaml",
+            "['https://abc.com/download', 'https://abc.com/download'] has non-unique elements",
+        ),
         ("events-empty.yaml", "[] should be non-empty"),
         (
             "events-non-unique-urls.yaml",