add visual samples index tests to CI (#597)

.travis.yml

@@ -57,6 +57,15 @@ jobs:
     script: "./tool/travis_flutter_script.sh"
     env: FLUTTER_VERSION=beta
 
+  - name: Visual samples index tests
+    os: linux
+    dist: trusty
+    env: FLUTTER_VERSION=stable
+    script:
+      - cd web/samples_index
+      - ../../flutter/bin/dart pub get
+      - ../../flutter/bin/dart test
+
   allow_failures:
   - env: FLUTTER_VERSION=beta
 

web/samples_index/test/samples_index_test.dart

@@ -41,19 +41,6 @@ void main() {
       expect(sample.date, DateTime.parse('2019-12-15T02:59:43.1Z'));
       expect(sample.channel, 'stable');
     });
-
-    test('bad yaml', () async {
-      var file = File('test/yaml/bad.yaml');
-      var contents = await file.readAsString();
-      expect(contents, isNotEmpty);
-
-      expect(
-          () => checkedYamlDecode(contents, (m) => Index.fromJson(m),
-              sourceUrl: file.uri),
-          throwsA(predicate((e) =>
-              e is ParsedYamlException &&
-              e.message.endsWith('Unsupported value for "name".'))));
-    });
   });
 
   group('searching', () {