Move file refactoring implementation.

pkg/analysis_server/test/services/refactoring/abstract_refactoring.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;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/index/local_memory_index.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analysis_server/src/services/search/search_engine_internal.dart';
-import '../../abstract_single_unit.dart';
+import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:unittest/unittest.dart';
 
+import '../../abstract_single_unit.dart';
+
 
 int findIdentifierLength(String search) {
   int length = 0;
   while (length < search.length) {
     int c = search.codeUnitAt(length);
     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;
 }
 
 
 /**
  * The base class for all [Refactoring] tests.
  */
 abstract class RefactoringTest extends AbstractSingleUnitTest {
   Index index;
   SearchEngineImpl searchEngine;
 
   SourceChange refactoringChange;
 
   Refactoring get refactoring;
 
   /**
+   * Asserts that [refactoringChange] contains a [FileEdit] for the file
+   * with the given [path], and it results the [expectedCode].
+   */
+  void assertFileChangeResult(String path, String expectedCode) {
+    // prepare FileEdit
+    SourceFileEdit fileEdit = refactoringChange.getFileEdit(path);
+    expect(fileEdit, isNotNull, reason: 'No file edit for $path');
+    // validate resulting code
+    File file = provider.getResource(path);
+    Source source = file.createSource();
+    String ini = context.getContents(source).data;
+    String actualCode = SourceEdit.applySequence(ini, fileEdit.edits);
+    expect(actualCode, expectedCode);
+  }
+
+  /**
+   * Asserts that [refactoringChange] does not contain a [FileEdit] for the file
+   * with the given [path].
+   */
+  void assertNoFileChange(String path) {
+    SourceFileEdit fileEdit = refactoringChange.getFileEdit(path);
+    expect(fileEdit, isNull);
+  }
+
+  /**
    * Asserts that [refactoring] initial/final conditions status is OK.
    */
   Future assertRefactoringConditionsOK() {
     return refactoring.checkInitialConditions().then((status) {
       assertRefactoringStatusOK(status);
       return refactoring.checkFinalConditions().then((status) {
         assertRefactoringStatusOK(status);
       });
     });
   }
@@ skipping 34 matching lines @@
   }
 
   /**
    * Asserts that [refactoring] status is OK.
    */
   void assertRefactoringStatusOK(RefactoringStatus status) {
     assertRefactoringStatus(status, null);
   }
 
   /**
-   * Asserts that [refactoringChange] contains a [FileEdit] for [testFile], and
-   * it results the [expectedCode].
-   */
-  void assertTestChangeResult(String expectedCode) {
-    // prepare FileEdit
-    SourceFileEdit fileEdit = refactoringChange.getFileEdit(testFile);
-    expect(fileEdit, isNotNull);
-    // validate resulting code
-    String actualCode = SourceEdit.applySequence(testCode, fileEdit.edits);
-    expect(actualCode, expectedCode);
-  }
-
-  /**
    * Checks that all conditions of [refactoring] are OK and the result of
    * applying the [Change] to [testUnit] is [expectedCode].
    */
   Future assertSuccessfulRefactoring(String expectedCode) {
     return assertRefactoringConditionsOK().then((_) {
       return refactoring.createChange().then((SourceChange change) {
         this.refactoringChange = change;
         assertTestChangeResult(expectedCode);
       });
     });
   }
 
+  /**
+   * Asserts that [refactoringChange] contains a [FileEdit] for [testFile], and
+   * it results the [expectedCode].
+   */
+  void assertTestChangeResult(String expectedCode) {
+    // prepare FileEdit
+    SourceFileEdit fileEdit = refactoringChange.getFileEdit(testFile);
+    expect(fileEdit, isNotNull);
+    // validate resulting code
+    String actualCode = SourceEdit.applySequence(testCode, fileEdit.edits);
+    expect(actualCode, expectedCode);
+  }
+
   void indexTestUnit(String code) {
     resolveTestUnit(code);
     index.indexUnit(context, testUnit);
   }
 
   void indexUnit(String file, String code) {
     Source source = addSource(file, code);
     CompilationUnit unit = resolveLibraryUnit(source);
     index.indexUnit(context, unit);
   }
 
   void setUp() {
     super.setUp();
     index = createLocalMemoryIndex();
     searchEngine = new SearchEngineImpl(index);
   }
 }