next step toward completion plugin API

pkg/analysis_server/test/services/completion/dart/reference_contributor_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.services.completion.contributor.dart.reference;
+
+import 'package:analysis_server/plugin/protocol/protocol.dart' as protocol
+    show Element, ElementKind;
+import 'package:analysis_server/plugin/protocol/protocol.dart'
+    hide Element, ElementKind;
+import 'package:analysis_server/src/provisional/completion/completion_dart.dart';
+import 'package:analysis_server/src/services/completion/dart/reference_contributor.dart';
+import 'package:analysis_server/src/services/completion/dart_completion_manager.dart'
+    hide DartCompletionContributor;
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+import 'package:unittest/unittest.dart';
+
+import '../../../utils.dart';
+import 'dart_completion_contributor_test.dart';
+
+main() {
+  initializeTestEnvironment();
+  defineReflectiveTests(ReferenceContributorTest);
+}
+
+@reflectiveTest
+class ReferenceContributorTest extends DartCompletionContributorTest {
+  CompletionSuggestion assertSuggestFunction(String name, String returnType,
+      {CompletionSuggestionKind kind: CompletionSuggestionKind.INVOCATION,
+      bool deprecated: false,
+      int relevance: DART_RELEVANCE_DEFAULT,
+      String importUri}) {
+    CompletionSuggestion cs = assertSuggest(name,
+        csKind: kind,
+        relevance: relevance,
+        importUri: importUri,
+        isDeprecated: deprecated);
+    expect(cs.returnType, returnType != null ? returnType : 'dynamic');
+    protocol.Element element = cs.element;
+    expect(element, isNotNull);
+    expect(element.kind, equals(protocol.ElementKind.FUNCTION));
+    expect(element.name, equals(name));
+    expect(element.isDeprecated, equals(deprecated));
+    String param = element.parameters;
+    expect(param, isNotNull);
+    expect(param[0], equals('('));
+    expect(param[param.length - 1], equals(')'));
+    expect(element.returnType,
+        equals(returnType != null ? returnType : 'dynamic'));
+    assertHasParameterInfo(cs);
+    return cs;
+  }
+
+  CompletionSuggestion assertSuggestLocalFunction(
+      String name, String returnType,
+      {CompletionSuggestionKind kind: CompletionSuggestionKind.INVOCATION,
+      bool deprecated: false,
+      int relevance: DART_RELEVANCE_LOCAL_FUNCTION}) {
+    return assertSuggestFunction(name, returnType,
+        kind: kind, deprecated: deprecated, relevance: relevance);
+  }
+
+  @override
+  DartCompletionContributor createContributor() {
+    return new ReferenceContributor();
+  }
+
+  test_ArgumentList_InstanceCreationExpression_functionalArg() async {
+    // ArgumentList  InstanceCreationExpression  ExpressionStatement  Block
+    addSource(
+        '/libA.dart',
+        '''
+library A;
+class A { A(f()) { } }
+bool hasLength(int expected) { }
+void baz() { }''');
+    addTestSource('''
+import 'dart:async';
+import '/libA.dart';
+class B { }
+String bar() => true;
+void main() {new A(^)}''');
+    await computeSuggestions();
+    assertSuggestLocalFunction('bar', 'String',
+        kind: CompletionSuggestionKind.IDENTIFIER);
+//    assertSuggestImportedFunction('hasLength', 'bool',
+//        kind: CompletionSuggestionKind.IDENTIFIER);
+//    assertSuggestImportedFunction('identical', 'bool',
+//        kind: CompletionSuggestionKind.IDENTIFIER);
+//    assertSuggestLocalClass('B', kind: CompletionSuggestionKind.IDENTIFIER);
+//    assertSuggestImportedClass('A',
+//        kind: CompletionSuggestionKind.IDENTIFIER);
+//    assertSuggestImportedClass('Object',
+//        kind: CompletionSuggestionKind.IDENTIFIER);
+//    assertNotSuggested('main');
+//    assertNotSuggested('baz');
+//    assertNotSuggested('print');
+  }
+}