Add an integration test for analysis.highlights.

pkg/analysis_server/test/integration/analysis/highlights_test.dart

+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library test.integration.analysis.highlights;
+
+import 'package:analysis_testing/reflective_tests.dart';
+import 'package:unittest/unittest.dart';
+
+import '../integration_tests.dart';
+
+@ReflectiveTestCase()
+class AnalysisHighlightsTest extends AbstractAnalysisServerIntegrationTest {
+  test_highlights() {
+    String pathname = sourcePath('test.dart');
+    String text =
+        r'''
+import 'dart:async' as async;
+
+/**
+ * Doc comment
+ */
+class Class<TypeParameter> {
+  Class() {
+    field = {1.0: [].toList()};
+  }
+
+  Class.constructor() {
+    dynamic local = true;
+    field = {2: local};
+  }
+
+  Map field;
+  static int staticField;
+
+  method() {
+    // End of line comment
+    /* Block comment */
+  }
+
+  static staticMethod() {
+  }
+
+  get getter {
+  }
+
+  set setter(int parameter) {
+  }
+}
+
+class Class2<TypeParameter> extends Class<TypeParameter> {
+  @override
+  method() {
+  }
+}
+
+typedef functionType();
+
+function(dynamicType) {
+  print('string');
+  return async.Future.wait([]);
+}
+
+int topLevelVariable;
+''';
+    writeFile(pathname, text);
+    standardAnalysisSetup();
+    sendAnalysisSetSubscriptions({'HIGHLIGHTS': [pathname]});
+    // Map from highlight type to highlighted text
+    Map<String, Set<String>> highlights;
+    onAnalysisHighlights.listen((params) {
+      expect(params['file'], equals(pathname));
+      highlights = <String, Set<String>>{};
+      for (var region in params['regions']) {
+        int startIndex = region['offset'];
+        int endIndex = startIndex + region['length'];
+        String highlightedText = text.substring(startIndex, endIndex);
+        String type = region['type'];
+        if (!highlights.containsKey(type)) {
+          highlights[type] = new Set<String>();
+        }
+        highlights[type].add(highlightedText);
+      }
+    });
+    return analysisFinished.then((_) {
+      expect(currentAnalysisErrors[pathname], hasLength(0));
+      void check(String type, List<String> expected) {
+        expect(highlights[type], equals(expected.toSet()));
+        highlights.remove(type);
+      }
+      check('ANNOTATION', ['@override']);
+      check('BUILT_IN', ['as', 'get', 'import', 'set', 'static', 'typedef']);
+      check('CLASS', ['Class', 'Class2', 'Future', 'Map', 'int']);
+      check('COMMENT_BLOCK', ['/* Block comment */']);
+      check('COMMENT_DOCUMENTATION', ['/**\n * Doc comment\n */']);
+      check('COMMENT_END_OF_LINE', ['// End of line comment']);
+      check('CONSTRUCTOR', ['constructor']);
+      // TODO(paulberry): When is the 'DIRECTIVE' type used?

[scheglov, 2014/08/12 02:28:46]

It's a bug in the highlights computer.

+      check('DYNAMIC_TYPE', ['dynamicType']);
+      check('FIELD', ['field']);
+      // TODO(paulberry): Why is "override" annotated as FIELD_STATIC?

[scheglov, 2014/08/12 02:28:46]

It's a bug in the highlights computer.

+      check('FIELD_STATIC', ['override', 'staticField']);
+      check('FUNCTION', ['print']);
+      check('FUNCTION_DECLARATION', ['function']);
+      check('FUNCTION_TYPE_ALIAS', ['functionType']);
+      check('GETTER_DECLARATION', ['getter']);
+      // TODO(paulberry): When is the 'IDENTIFIER_DEFAULT' type used?

[scheglov, 2014/08/12 02:28:47]

For unresolved identifiers: aaa, bbb, CCC.

main() {
  aaa = 42;
  bbb(84);
  CCC ccc;
}

+      check('IMPORT_PREFIX', ['async']);
+      // TODO(paulberry): When is the 'KEYWORD' type used?

[scheglov, 2014/08/12 02:28:46]

It's a bug in the highlights computer.

+      check('LITERAL_BOOLEAN', ['true']);
+      check('LITERAL_DOUBLE', ['1.0']);
+      check('LITERAL_INTEGER', ['2']);
+      // TODO(paulberry): When is the 'LITERAL_LIST' type used?
+      // TODO(paulberry): When is the 'LITERAL_MAP' type used?

[scheglov, 2014/08/12 02:28:46]

These are bugs in the highlights computer.

+      check('LITERAL_STRING', ["'dart:async'", "'string'"]);
+      check('LOCAL_VARIABLE', ['local']);
+      check('LOCAL_VARIABLE_DECLARATION', ['local']);
+      check('METHOD', ['toList']);
+      check('METHOD_DECLARATION', ['method']);
+      check('METHOD_DECLARATION_STATIC', ['staticMethod']);
+      check('METHOD_STATIC', ['wait']);
+      check('PARAMETER', ['parameter']);
+      check('SETTER_DECLARATION', ['setter']);
+      check('TOP_LEVEL_VARIABLE', ['topLevelVariable']);
+      check('TYPE_NAME_DYNAMIC', ['dynamic']);
+      check('TYPE_PARAMETER', ['TypeParameter']);
+      expect(highlights, isEmpty);
+    });
+  }
+}
+
+main() {
+  runReflectiveTests(AnalysisHighlightsTest);
+}