tests for earlier CL

pkg/analysis_server/test/services/completion/completion_target_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.target;
+
+import 'package:analysis_server/src/services/completion/completion_target.dart';
+import 'package:analyzer/src/generated/ast.dart';
+import 'package:analyzer/src/generated/source.dart';
+import 'package:unittest/unittest.dart';
+
+import '../../abstract_context.dart';
+import '../../reflective_tests.dart';
+
+main() {
+  groupSep = ' | ';
+  runReflectiveTests(CompletionTargetTest);
+}
+
+@reflectiveTest
+class CompletionTargetTest extends AbstractContextTest {
+  int completionOffset;
+  CompletionTarget target;
+
+  void addTestSource(String content) {
+    expect(completionOffset, isNull, reason: 'Call addTestSource exactly once');
+    completionOffset = content.indexOf('^');
+    expect(completionOffset, isNot(equals(-1)), reason: 'missing ^');
+    int nextOffset = content.indexOf('^', completionOffset + 1);
+    expect(nextOffset, equals(-1), reason: 'too many ^');
+    content = content.substring(0, completionOffset) +
+        content.substring(completionOffset + 1);
+    Source testSource = addSource('/test.dart', content);
+    CompilationUnit unit = context.parseCompilationUnit(testSource);
+    target = new CompletionTarget.forOffset(unit, completionOffset);
+  }
+
+  test_AsExpression_identifier() {
+    // SimpleIdentifier  TypeName  AsExpression
+    addTestSource('class A {var b; X _c; foo() {var a; (a^ as String).foo();}');
+    expect(target.entity.toString(), 'a as String');
+    expect(target.containingNode.toString(), '(a as String)');
+  }
+
+  test_AsExpression_keyword() {
+    // SimpleIdentifier  TypeName  AsExpression
+    addTestSource('class A {var b; X _c; foo() {var a; (a ^as String).foo();}');
+    expect(target.entity.toString(), 'as');
+    expect(target.containingNode.toString(), 'a as String');
+  }
+
+  test_AsExpression_keyword2() {
+    // SimpleIdentifier  TypeName  AsExpression
+    addTestSource('class A {var b; X _c; foo() {var a; (a a^s String).foo();}');
+    expect(target.entity.toString(), 'as');
+    expect(target.containingNode.toString(), 'a as String');
+  }
+
+  test_AsExpression_keyword3() {
+    // SimpleIdentifier  TypeName  AsExpression
+    addTestSource('class A {var b; X _c; foo() {var a; (a as^ String).foo();}');
+    expect(target.entity.toString(), 'as');
+    expect(target.containingNode.toString(), 'a as String');
+  }
+
+  test_AsExpression_type() {
+    // SimpleIdentifier  TypeName  AsExpression
+    addTestSource('class A {var b; X _c; foo() {var a; (a as ^String).foo();}');
+    expect(target.entity.toString(), 'String');
+    expect(target.containingNode.toString(), 'a as String');
+  }
+
+  test_InstanceCreationExpression_keyword() {
+    // InstanceCreationExpression  ExpressionStatement  Block
+    addTestSource('class C {foo(){var f; {var x;} new^ }}');
+    expect(target.entity.toString(), 'new ();');
+    expect(target.containingNode.toString(), '{var f; {var x;} new ();}');
+  }
+
+  test_InstanceCreationExpression_keyword2() {
+    // InstanceCreationExpression  ExpressionStatement  Block
+    addTestSource('class C {foo(){var f; {var x;} new^ C();}}');
+    expect(target.entity.toString(), 'new C();');
+    expect(target.containingNode.toString(), '{var f; {var x;} new C();}');
+  }
+
+  test_InstanceCreationExpression_identifier() {
+    // InstanceCreationExpression  ExpressionStatement  Block
+    addTestSource('class C {foo(){var f; {var x;} new ^C();}}');
+    expect(target.entity.toString(), 'C');
+    expect(target.containingNode.toString(), 'new C()');
+  }
+
+  test_VariableDeclaration_lhs_identifier_after() {
+    // VariableDeclaration  VariableDeclarationList
+    addTestSource('main() {int b^ = 1;}');
+    expect(target.entity.toString(), 'b = 1');
+    expect(target.containingNode.toString(), 'int b = 1');
+  }
+
+  test_VariableDeclaration_lhs_identifier_before() {
+    // VariableDeclaration  VariableDeclarationList
+    addTestSource('main() {int ^b = 1;}');
+    expect(target.entity.toString(), 'b = 1');
+    expect(target.containingNode.toString(), 'int b = 1');
+  }
+}