'Rename Import Prefix' refactoring.

pkg/analysis_services/test/refactoring/rename_import_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_import;
+
+import 'package:analysis_services/correction/status.dart';
+import 'package:analysis_testing/reflective_tests.dart';
+import 'package:analyzer/src/generated/ast.dart';
+import 'package:unittest/unittest.dart';
+
+import 'abstract_rename.dart';
+
+
+main() {
+  groupSep = ' | ';
+  runReflectiveTests(RenameImportTest);
+}
+
+
+@ReflectiveTestCase()
+class RenameImportTest extends RenameRefactoringTest {
+  test_checkNewName() {
+    indexTestUnit("import 'dart:async' as test;");
+    _createRefactoring("import 'dart:");
+    expect(refactoring.oldName, 'test');
+    // null
+    refactoring.newName = null;
+    assertRefactoringStatus(
+        refactoring.checkNewName(),
+        RefactoringStatusSeverity.ERROR,
+        expectedMessage: "Import prefix 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('''
+import 'dart:async';
+import 'dart:math' show Random, min hide max;
+main() {
+  Future f;
+  Random r;
+  min(1, 2);
+}
+''');
+    // configure refactoring
+    _createRefactoring("import 'dart:math");
+    expect(refactoring.refactoringName, 'Rename Import Prefix');
+    refactoring.newName = 'newName';
+    // validate change
+    return assertSuccessfulRename('''
+import 'dart:async';
+import 'dart:math' as newName show Random, min hide max;
+main() {
+  Future f;
+  newName.Random r;
+  newName.min(1, 2);
+}
+''');
+  }
+
+  test_createChange_change_className() {
+    indexTestUnit('''
+import 'dart:math' as test;
+import 'dart:async' as test;
+main() {
+  test.Future f;
+}
+''');
+    // configure refactoring
+    _createRefactoring("import 'dart:async");
+    expect(refactoring.refactoringName, 'Rename Import Prefix');
+    expect(refactoring.oldName, 'test');
+    refactoring.newName = 'newName';
+    // validate change
+    return assertSuccessfulRename('''
+import 'dart:math' as test;
+import 'dart:async' as newName;
+main() {
+  newName.Future f;
+}
+''');
+  }
+
+  test_createChange_change_function() {
+    indexTestUnit('''
+import 'dart:math' as test;
+import 'dart:async' as test;
+main() {
+  test.max(1, 2);
+  test.Future f;
+}
+''');
+    // configure refactoring
+    _createRefactoring("import 'dart:math");
+    expect(refactoring.refactoringName, 'Rename Import Prefix');
+    expect(refactoring.oldName, 'test');
+    refactoring.newName = 'newName';
+    // validate change
+    return assertSuccessfulRename('''
+import 'dart:math' as newName;
+import 'dart:async' as test;
+main() {
+  newName.max(1, 2);
+  test.Future f;
+}
+''');
+  }
+
+  test_createChange_remove() {
+    indexTestUnit('''
+import 'dart:math' as test;
+import 'dart:async' as test;
+main() {
+  test.Future f;
+}
+''');
+    // configure refactoring
+    _createRefactoring("import 'dart:async");
+    expect(refactoring.refactoringName, 'Rename Import Prefix');
+    expect(refactoring.oldName, 'test');
+    refactoring.newName = '';
+    // validate change
+    return assertSuccessfulRename('''
+import 'dart:math' as test;
+import 'dart:async';
+main() {
+  Future f;
+}
+''');
+  }
+
+  void _createRefactoring(String search) {
+    ImportDirective directive =
+        findNodeAtString(search, (node) => node is ImportDirective);
+    createRenameRefactoringForElement(directive.element);
+  }
+}