Analysis server format service wiring (and protocol doc update).

pkg/analysis_server/test/edit/format_test.dart

+// Copyright (c) 2015, 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.edit.format;
+
+import 'dart:async';
+
+import 'package:analysis_server/src/edit/edit_domain.dart';
+import 'package:analysis_server/src/protocol.dart';
+import 'package:unittest/unittest.dart' hide ERROR;
+
+import '../analysis_abstract.dart';
+import '../reflective_tests.dart';
+
+
+main() {
+  groupSep = ' | ';
+  runReflectiveTests(FormatTest);
+}
+
+
+@reflectiveTest
+class FormatTest extends AbstractAnalysisTest {
+  @override
+  void setUp() {
+    super.setUp();
+    createProject();
+    handler = new EditDomainHandler(server);
+  }
+
+  Future test_formatSimple() {
+    addTestFile('''
+main() { int x = 3; }
+''');
+    return waitForTasksFinished().then((_) {
+
+      EditFormatResult formatResult = _formatAt(0, 3);
+
+      expect(formatResult.edits, isNotNull);
+      expect(formatResult.edits, hasLength(1));
+
+      SourceEdit edit = formatResult.edits[0];
+      expect(edit.replacement, equals('''
+main() {
+  int x = 3;
+}
+'''));
+      expect(formatResult.selectionOffset, equals(0));
+      expect(formatResult.selectionLength, equals(3));
+    });
+  }
+
+  Future test_formatNoOp() {
+    // Already formatted source
+    addTestFile('''
+main() {
+  int x = 3;
+}
+''');
+    return waitForTasksFinished().then((_) {
+      EditFormatResult formatResult = _formatAt(0, 3);
+      expect(formatResult.edits, isNotNull);
+      expect(formatResult.edits, hasLength(0));
+    });
+  }
+
+  EditFormatResult _formatAt(int selectionOffset, int selectionLength) {
+    Request request = new EditFormatParams(
+        testFile,
+        selectionOffset,
+        selectionLength).toRequest('0');
+    Response response = handleSuccessfulRequest(request);
+    return new EditFormatResult.fromResponse(response);
+  }
+
+}