Extract 'DartUnitHighlightsComputer' tests into a separate file.

pkg/analysis_server/test/analysis_notification_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.domain.analysis.notification.highlights;
+
+import 'dart:async';
+
+import 'package:analysis_server/src/analysis_server.dart';
+import 'package:analysis_server/src/computer/computer_highlights.dart';
+import 'package:analysis_server/src/constants.dart';
+import 'package:analysis_server/src/protocol.dart';
+import 'package:unittest/unittest.dart';
+
+import 'analysis_abstract.dart';
+import 'reflective_tests.dart';
+
+
+main() {
+  group('notification.highlights', () {
+    runReflectiveTests(_AnalysisNotificationHighlightsTest);
+  });
+}
+
+
+@ReflectiveTestCase()
+class _AnalysisNotificationHighlightsTest extends AbstractAnalysisTest {
+  List<_HighlighRegion> regions;
+
+  void assertHasRawRegion(HighlightType type, int offset, int length) {
+    for (_HighlighRegion region in regions) {
+      if (region.offset == offset && region.length == length && region.type ==
+          type.name) {
+        return;
+      }
+    }
+    fail('Expected to find (offset=$offset; length=$length; type=$type) in\n'
+        '${regions.join('\n')}');
+  }
+
+  void assertHasRegion(HighlightType type, String search, [int length = -1]) {
+    int offset = findOffset(search);
+    length = findRegionLength(search, length);
+    assertHasRawRegion(type, offset, length);
+  }
+
+  void assertNoRawRegion(HighlightType type, int offset, int length) {
+    for (_HighlighRegion region in regions) {
+      if (region.offset == offset && region.length == length && region.type ==
+          type.name) {
+        fail(
+            'Not expected to find (offset=$offset; length=$length; type=$type) in\n'
+            '${regions.join('\n')}');
+      }
+    }
+  }
+
+
+  void assertNoRegion(HighlightType type, String search, [int length = -1]) {
+    int offset = findOffset(search);
+    length = findRegionLength(search, length);
+    assertNoRawRegion(type, offset, length);
+  }
+
+  int findRegionLength(String search, int length) {
+    if (length == -1) {
+      length = 0;
+      while (length < search.length) {
+        int c = search.codeUnitAt(length);
+        if (length == 0 && c == '@'.codeUnitAt(0)) {
+          length++;
+          continue;
+        }
+        if (!(c >= 'a'.codeUnitAt(0) && c <= 'z'.codeUnitAt(0) || c >=
+            'A'.codeUnitAt(0) && c <= 'Z'.codeUnitAt(0) || c >= '0'.codeUnitAt(0) && c <=
+            '9'.codeUnitAt(0))) {
+          break;
+        }
+        length++;
+      }
+    }
+    return length;
+  }
+
+  Future prepareHighlights(then()) {
+    addAnalysisSubscription(AnalysisService.HIGHLIGHTS, testFile);
+    return waitForTasksFinished().then((_) {
+      then();
+    });
+  }
+
+  void processNotification(Notification notification) {
+    if (notification.event == ANALYSIS_HIGHLIGHTS) {
+      String file = notification.getParameter(FILE);
+      if (file == testFile) {
+        regions = [];
+        List<Map<String, Object>> regionsJson = notification.getParameter(
+            REGIONS);
+        for (Map<String, Object> regionJson in regionsJson) {
+          regions.add(new _HighlighRegion.fromJson(regionJson));
+        }
+      }
+    }
+  }
+
+  @override
+  void setUp() {
+    super.setUp();
+    createProject();
+  }
+
+  test_ANNOTATION_hasArguments() {
+    addTestFile('''
+class AAA {
+  const AAA(a, b, c);
+}
+@AAA(1, 2, 3) main() {}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.ANNOTATION, '@AAA(', '@AAA('.length);
+      assertHasRegion(HighlightType.ANNOTATION, ') main', ')'.length);
+    });
+  }
+
+  test_ANNOTATION_noArguments() {
+    addTestFile('''
+const AAA = 42;
+@AAA main() {}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.ANNOTATION, '@AAA');
+    });
+  }
+
+  test_BUILT_IN_abstract() {
+    addTestFile('''
+abstract class A {};
+main() {
+  var abstract = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'abstract class');
+      assertNoRegion(HighlightType.BUILT_IN, 'abstract = 42');
+    });
+  }
+
+  test_BUILT_IN_as() {
+    addTestFile('''
+import 'dart:math' as math;
+main() {
+  p as int;
+  var as = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'as math');
+      assertHasRegion(HighlightType.BUILT_IN, 'as int');
+      assertNoRegion(HighlightType.BUILT_IN, 'as = 42');
+    });
+  }
+
+  test_BUILT_IN_deferred() {
+    addTestFile('''
+import 'dart:math' deferred as math;
+main() {
+  var deferred = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'deferred as math');
+      assertNoRegion(HighlightType.BUILT_IN, 'deferred = 42');
+    });
+  }
+
+  test_BUILT_IN_export() {
+    addTestFile('''
+export "dart:math";
+main() {
+  var export = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'export "dart:');
+      assertNoRegion(HighlightType.BUILT_IN, 'export = 42');
+    });
+  }
+
+  test_BUILT_IN_external() {
+    addTestFile('''
+class A {
+  external A();
+  external aaa();
+}
+external main() {
+  var external = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'external A()');
+      assertHasRegion(HighlightType.BUILT_IN, 'external aaa()');
+      assertHasRegion(HighlightType.BUILT_IN, 'external main()');
+      assertNoRegion(HighlightType.BUILT_IN, 'external = 42');
+    });
+  }
+
+  test_BUILT_IN_factory() {
+    addTestFile('''
+class A {
+  factory A() => null;
+}
+main() {
+  var factory = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'factory A()');
+      assertNoRegion(HighlightType.BUILT_IN, 'factory = 42');
+    });
+  }
+
+  test_BUILT_IN_get() {
+    addTestFile('''
+get aaa => 1;
+class A {
+  get bbb => 2;
+}
+main() {
+  var get = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'get aaa =>');
+      assertHasRegion(HighlightType.BUILT_IN, 'get bbb =>');
+      assertNoRegion(HighlightType.BUILT_IN, 'get = 42');
+    });
+  }
+
+  test_BUILT_IN_hide() {
+    addTestFile('''
+import 'foo.dart' hide Foo;
+main() {
+  var hide = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'hide Foo');
+      assertNoRegion(HighlightType.BUILT_IN, 'hide = 42');
+    });
+  }
+
+  test_BUILT_IN_implements() {
+    addTestFile('''
+class A {}
+class B implements A {}
+main() {
+  var implements = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'implements A {}');
+      assertNoRegion(HighlightType.BUILT_IN, 'implements = 42');
+    });
+  }
+
+  test_BUILT_IN_import() {
+    addTestFile('''
+import "foo.dart";
+main() {
+  var import = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'import "');
+      assertNoRegion(HighlightType.BUILT_IN, 'import = 42');
+    });
+  }
+
+  test_BUILT_IN_library() {
+    addTestFile('''
+library lib;
+main() {
+  var library = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'library lib;');
+      assertNoRegion(HighlightType.BUILT_IN, 'library = 42');
+    });
+  }
+
+  test_BUILT_IN_native() {
+    addTestFile('''
+class A native "A_native" {}
+class B {
+  bbb() native "bbb_native";
+}
+main() {
+  var native = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'native "A_');
+      assertHasRegion(HighlightType.BUILT_IN, 'native "bbb_');
+      assertNoRegion(HighlightType.BUILT_IN, 'native = 42');
+    });
+  }
+
+  test_BUILT_IN_on() {
+    addTestFile('''
+main() {
+  try {
+  } on int catch (e) {
+  }
+  var on = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'on int');
+      assertNoRegion(HighlightType.BUILT_IN, 'on = 42');
+    });
+  }
+
+  test_BUILT_IN_operator() {
+    addTestFile('''
+class A {
+  operator +(x) => null;
+}
+main() {
+  var operator = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'operator +(');
+      assertNoRegion(HighlightType.BUILT_IN, 'operator = 42');
+    });
+  }
+
+  test_BUILT_IN_part() {
+    addTestFile('''
+part "my_part.dart";
+main() {
+  var part = 42;
+}''');
+    addFile('/project/bin/my_part.dart', 'part of lib;');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'part "my_');
+      assertNoRegion(HighlightType.BUILT_IN, 'part = 42');
+    });
+  }
+
+  test_BUILT_IN_partOf() {
+    addTestFile('''
+part of lib;
+main() {
+  var part = 1;
+  var of = 2;
+}''');
+    addFile('/project/bin/my_lib.dart', '''
+library lib;
+part 'test.dart';
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'part of', 'part of'.length);
+      assertNoRegion(HighlightType.BUILT_IN, 'part = 1');
+      assertNoRegion(HighlightType.BUILT_IN, 'of = 2');
+    });
+  }
+
+  test_BUILT_IN_set() {
+    addTestFile('''
+set aaa(x) {}
+class A
+  set bbb(x) {}
+}
+main() {
+  var set = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'set aaa(');
+      assertHasRegion(HighlightType.BUILT_IN, 'set bbb(');
+      assertNoRegion(HighlightType.BUILT_IN, 'set = 42');
+    });
+  }
+
+  test_BUILT_IN_show() {
+    addTestFile('''
+import 'foo.dart' show Foo;
+main() {
+  var show = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'show Foo');
+      assertNoRegion(HighlightType.BUILT_IN, 'show = 42');
+    });
+  }
+
+  test_BUILT_IN_static() {
+    addTestFile('''
+class A {
+  static aaa;
+  static bbb() {}
+}
+main() {
+  var static = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'static aaa;');
+      assertHasRegion(HighlightType.BUILT_IN, 'static bbb()');
+      assertNoRegion(HighlightType.BUILT_IN, 'static = 42');
+    });
+  }
+
+  test_BUILT_IN_typedef() {
+    addTestFile('''
+typedef A();
+main() {
+  var typedef = 42;
+}''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.BUILT_IN, 'typedef A();');
+      assertNoRegion(HighlightType.BUILT_IN, 'typedef = 42');
+    });
+  }
+
+  test_CLASS() {
+    addTestFile('''
+class AAA {}
+AAA aaa;
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.CLASS, 'AAA {}');
+      assertHasRegion(HighlightType.CLASS, 'AAA aaa');
+    });
+  }
+
+  test_CLASS_notDynamic() {
+    addTestFile('''
+dynamic f() {}
+''');
+    return prepareHighlights(() {
+      assertNoRegion(HighlightType.CLASS, 'dynamic f()');
+    });
+  }
+
+  test_CLASS_notVoid() {
+    addTestFile('''
+void f() {}
+''');
+    return prepareHighlights(() {
+      assertNoRegion(HighlightType.CLASS, 'void f()');
+    });
+  }
+
+  test_CONSTRUCTOR() {
+    addTestFile('''
+class AAA {
+  AAA() {}
+  AAA.name(p) {}
+}
+main() {
+  new AAA();
+  new AAA.name(42);
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.CONSTRUCTOR, 'name(p)');
+      assertHasRegion(HighlightType.CONSTRUCTOR, 'name(42)');
+      assertNoRegion(HighlightType.CONSTRUCTOR, 'AAA() {}');
+      assertNoRegion(HighlightType.CONSTRUCTOR, 'AAA();');
+    });
+  }
+
+  test_DYNAMIC_TYPE() {
+    addTestFile('''
+f() {}
+main(p) {
+  print(p);
+  var v1 = f();
+  int v2;
+  var v3 = v2;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.DYNAMIC_TYPE, 'p)');
+      assertHasRegion(HighlightType.DYNAMIC_TYPE, 'v1 =');
+      assertNoRegion(HighlightType.DYNAMIC_TYPE, 'v2;');
+      assertNoRegion(HighlightType.DYNAMIC_TYPE, 'v3 =');
+    });
+  }
+
+  test_FIELD() {
+    addTestFile('''
+class A {
+  int aaa = 1;
+  int bbb = 2;
+  A([this.bbb = 3]);
+}
+main(A a) {
+  a.aaa = 4;
+  a.bbb = 5;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.FIELD, 'aaa = 1');
+      assertHasRegion(HighlightType.FIELD, 'bbb = 2');
+      assertHasRegion(HighlightType.FIELD, 'bbb = 3');
+      assertHasRegion(HighlightType.FIELD, 'aaa = 4');
+      assertHasRegion(HighlightType.FIELD, 'bbb = 5');
+    });
+  }
+
+  test_FIELD_STATIC() {
+    addTestFile('''
+class A {
+  static aaa = 1;
+  static get bbb => null;
+  static set ccc(x) {}
+}
+main() {
+  A.aaa = 2;
+  A.bbb;
+  A.ccc = 3;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.FIELD_STATIC, 'aaa = 1');
+      assertHasRegion(HighlightType.FIELD_STATIC, 'aaa = 2');
+      assertHasRegion(HighlightType.FIELD_STATIC, 'bbb;');
+      assertHasRegion(HighlightType.FIELD_STATIC, 'ccc = 3');
+    });
+  }
+
+  test_FUNCTION() {
+    addTestFile('''
+fff(p) {}
+main() {
+  fff(42);
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.FUNCTION_DECLARATION, 'fff(p) {}');
+      assertHasRegion(HighlightType.FUNCTION, 'fff(42)');
+    });
+  }
+
+  test_FUNCTION_TYPE_ALIAS() {
+    addTestFile('''
+typedef FFF(p);
+main(FFF fff) {
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.FUNCTION_TYPE_ALIAS, 'FFF(p)');
+      assertHasRegion(HighlightType.FUNCTION_TYPE_ALIAS, 'FFF fff)');
+    });
+  }
+
+  test_GETTER_DECLARATION() {
+    addTestFile('''
+get aaa => null;
+class A {
+  get bbb => null;
+}
+main(A a) {
+  aaa;
+  a.bbb;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.GETTER_DECLARATION, 'aaa => null');
+      assertHasRegion(HighlightType.GETTER_DECLARATION, 'bbb => null');
+      assertHasRegion(HighlightType.FIELD_STATIC, 'aaa;');
+      assertHasRegion(HighlightType.FIELD, 'bbb;');
+    });
+  }
+
+  test_IDENTIFIER_DEFAULT() {
+    addTestFile('''
+main() {
+  aaa = 42;
+  bbb(84);
+  CCC ccc;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.IDENTIFIER_DEFAULT, 'aaa = 42');
+      assertHasRegion(HighlightType.IDENTIFIER_DEFAULT, 'bbb(84)');
+      assertHasRegion(HighlightType.IDENTIFIER_DEFAULT, 'CCC ccc');
+    });
+  }
+
+  test_IMPORT_PREFIX() {
+    addTestFile('''
+import 'dart:math' as ma;
+main() {
+  ma.max(1, 2);
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.IMPORT_PREFIX, 'ma;');
+      assertHasRegion(HighlightType.IMPORT_PREFIX, 'ma.max');
+    });
+  }
+
+  test_KEYWORD_void() {
+    addTestFile('''
+void main() {
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.KEYWORD, 'void main()');
+    });
+  }
+
+  test_LITERAL_BOOLEAN() {
+    addTestFile('var V = true;');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.LITERAL_BOOLEAN, 'true;');
+    });
+  }
+
+  test_LITERAL_DOUBLE() {
+    addTestFile('var V = 4.2;');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.LITERAL_DOUBLE, '4.2;', '4.2'.length);
+    });
+  }
+
+  test_LITERAL_INTEGER() {
+    addTestFile('var V = 42;');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.LITERAL_INTEGER, '42;');
+    });
+  }
+
+  test_LITERAL_STRING() {
+    addTestFile('var V = "abc";');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.LITERAL_STRING, '"abc";', '"abc"'.length);
+    });
+  }
+
+  test_LOCAL_VARIABLE() {
+    addTestFile('''
+main() {
+  int vvv = 0;
+  vvv;
+  vvv = 1;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.LOCAL_VARIABLE_DECLARATION, 'vvv = 0');
+      assertHasRegion(HighlightType.LOCAL_VARIABLE, 'vvv;');
+      assertHasRegion(HighlightType.LOCAL_VARIABLE, 'vvv = 1;');
+    });
+  }
+
+  test_METHOD() {
+    addTestFile('''
+class A {
+  aaa() {}
+  static bbb() {}
+}
+main(A a) {
+  a.aaa();
+  a.aaa;
+  A.bbb();
+  A.bbb;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.METHOD_DECLARATION, 'aaa() {}');
+      assertHasRegion(HighlightType.METHOD_DECLARATION_STATIC, 'bbb() {}');
+      assertHasRegion(HighlightType.METHOD, 'aaa();');
+      assertHasRegion(HighlightType.METHOD, 'aaa;');
+      assertHasRegion(HighlightType.METHOD_STATIC, 'bbb();');
+      assertHasRegion(HighlightType.METHOD_STATIC, 'bbb;');
+    });
+  }
+
+  test_METHOD_bestType() {
+    addTestFile('''
+main(p) {
+  if (p is List) {
+    p.add(null);
+  }
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.METHOD, 'add(null)');
+    });
+  }
+
+  test_PARAMETER() {
+    addTestFile('''
+main(int p) {
+  p;
+  p = 42;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.PARAMETER, 'p) {');
+      assertHasRegion(HighlightType.PARAMETER, 'p;');
+      assertHasRegion(HighlightType.PARAMETER, 'p = 42');
+    });
+  }
+
+  test_SETTER_DECLARATION() {
+    addTestFile('''
+set aaa(x) {}
+class A {
+  set bbb(x) {}
+}
+main(A a) {
+  aaa = 1;
+  a.bbb = 2;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.SETTER_DECLARATION, 'aaa(x)');
+      assertHasRegion(HighlightType.SETTER_DECLARATION, 'bbb(x)');
+      assertHasRegion(HighlightType.FIELD_STATIC, 'aaa = 1');
+      assertHasRegion(HighlightType.FIELD, 'bbb = 2');
+    });
+  }
+
+  test_TOP_LEVEL_VARIABLE() {
+    addTestFile('''
+var VVV = 0;
+main() {
+  print(VVV);
+  VVV = 1;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.TOP_LEVEL_VARIABLE, 'VVV = 0');
+      assertHasRegion(HighlightType.FIELD_STATIC, 'VVV);');
+      assertHasRegion(HighlightType.FIELD_STATIC, 'VVV = 1');
+    });
+  }
+
+  test_TYPE_NAME_DYNAMIC() {
+    addTestFile('''
+dynamic main() {
+  dynamic = 42;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.TYPE_NAME_DYNAMIC, 'dynamic main()');
+      assertNoRegion(HighlightType.IDENTIFIER_DEFAULT, 'dynamic main()');
+      assertNoRegion(HighlightType.TYPE_NAME_DYNAMIC, 'dynamic = 42');
+    });
+  }
+
+  test_TYPE_PARAMETER() {
+    addTestFile('''
+class A<T> {
+  T fff;
+  T mmm(T p) => null;
+}
+''');
+    return prepareHighlights(() {
+      assertHasRegion(HighlightType.TYPE_PARAMETER, 'T> {');
+      assertHasRegion(HighlightType.TYPE_PARAMETER, 'T fff;');
+      assertHasRegion(HighlightType.TYPE_PARAMETER, 'T mmm(');
+      assertHasRegion(HighlightType.TYPE_PARAMETER, 'T p)');
+    });
+  }
+}
+
+
+class _HighlighRegion {
+  final int length;
+  final int offset;
+  final String type;
+
+  _HighlighRegion(this.type, this.offset, this.length);
+
+  factory _HighlighRegion.fromJson(Map<String, Object> map) {
+    return new _HighlighRegion(map[TYPE], map[OFFSET], map[LENGTH]);
+  }
+}