'Rename Constructor' refactoring.

pkg/analysis_services/test/refactoring/rename_constructor_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.refactoring.rename_constructor;
+
+import 'package:analysis_services/correction/status.dart';
+import 'package:analysis_testing/reflective_tests.dart';
+import 'package:analyzer/src/generated/ast.dart';
+import 'package:analyzer/src/generated/element.dart';
+import 'package:unittest/unittest.dart';
+
+import 'abstract_rename.dart';
+
+
+main() {
+  groupSep = ' | ';
+  runReflectiveTests(RenameConstructorTest);
+}
+
+
+@ReflectiveTestCase()
+class RenameConstructorTest extends RenameRefactoringTest {
+  test_checkFinalConditions_hasMember_constructor() {
+    indexTestUnit('''
+class A {
+  A.test() {}
+  A.newName() {} // existing
+}
+''');
+    _createConstructorDeclarationRefactoring('test() {}');
+    // check status
+    refactoring.newName = 'newName';
+    return refactoring.checkFinalConditions().then((status) {
+      assertRefactoringStatus(
+          status,
+          RefactoringStatusSeverity.ERROR,
+          expectedMessage: "Class 'A' already declares constructor with name 'newName'.",
+          expectedContextSearch: 'newName() {} // existing');
+    });
+  }
+
+  test_checkFinalConditions_hasMember_method() {
+    indexTestUnit('''
+class A {
+  A.test() {}
+  newName() {} // existing
+}
+''');
+    _createConstructorDeclarationRefactoring('test() {}');
+    // check status
+    refactoring.newName = 'newName';
+    return refactoring.checkFinalConditions().then((status) {
+      assertRefactoringStatus(
+          status,
+          RefactoringStatusSeverity.ERROR,
+          expectedMessage: "Class 'A' already declares method with name 'newName'.",
+          expectedContextSearch: 'newName() {} // existing');
+    });
+  }
+
+  test_checkNewName() {
+    indexTestUnit('''
+class A {
+  A.test() {}
+}
+''');
+    createRenameRefactoringAtString('test() {}');
+    expect(refactoring.oldName, 'test');
+    // null
+    refactoring.newName = null;
+    assertRefactoringStatus(
+        refactoring.checkNewName(),
+        RefactoringStatusSeverity.ERROR,
+        expectedMessage: "Constructor name must not be null.");
+    // same
+    refactoring.newName = 'test';
+    assertRefactoringStatus(
+        refactoring.checkNewName(),
+        RefactoringStatusSeverity.FATAL,
+        expectedMessage: "The new name must be different than the current name.");
+    // empty
+    refactoring.newName = '';
+    assertRefactoringStatusOK(refactoring.checkNewName());
+    // OK
+    refactoring.newName = 'newName';
+    assertRefactoringStatusOK(refactoring.checkNewName());
+  }
+
+  test_createChange_add() {
+    indexTestUnit('''
+class A {
+  A() {} // marker
+}
+class B extends A {
+  B() : super() {}
+  factory B._() = A;
+}
+main() {
+  new A();
+}
+''');
+    // configure refactoring
+    _createConstructorDeclarationRefactoring('() {} // marker');
+    expect(refactoring.refactoringName, 'Rename Constructor');
+    expect(refactoring.oldName, '');
+    // validate change
+    refactoring.newName = 'newName';
+    return assertSuccessfulRename('''
+class A {
+  A.newName() {} // marker
+}
+class B extends A {
+  B() : super.newName() {}
+  factory B._() = A.newName;
+}
+main() {
+  new A.newName();
+}
+''');
+  }
+
+  test_createChange_change() {
+    indexTestUnit('''
+class A {
+  A.test() {} // marker
+}
+class B extends A {
+  B() : super.test() {}
+  factory B._() = A.test;
+}
+main() {
+  new A.test();
+}
+''');
+    // configure refactoring
+    _createConstructorDeclarationRefactoring('test() {} // marker');
+    expect(refactoring.refactoringName, 'Rename Constructor');
+    expect(refactoring.oldName, 'test');
+    // validate change
+    refactoring.newName = 'newName';
+    return assertSuccessfulRename('''
+class A {
+  A.newName() {} // marker
+}
+class B extends A {
+  B() : super.newName() {}
+  factory B._() = A.newName;
+}
+main() {
+  new A.newName();
+}
+''');
+  }
+
+  test_createChange_remove() {
+    indexTestUnit('''
+class A {
+  A.test() {} // marker
+}
+class B extends A {
+  B() : super.test() {}
+  factory B._() = A.test;
+}
+main() {
+  new A.test();
+}
+''');
+    // configure refactoring
+    _createConstructorDeclarationRefactoring('test() {} // marker');
+    expect(refactoring.refactoringName, 'Rename Constructor');
+    expect(refactoring.oldName, 'test');
+    // validate change
+    refactoring.newName = '';
+    return assertSuccessfulRename('''
+class A {
+  A() {} // marker
+}
+class B extends A {
+  B() : super() {}
+  factory B._() = A;
+}
+main() {
+  new A();
+}
+''');
+  }
+
+  void _createConstructorDeclarationRefactoring(String search) {
+    ConstructorElement element =
+        findNodeElementAtString(search, (node) => node is ConstructorDeclaration);
+    createRenameRefactoringForElement(element);
+  }
+}