Support for analysis.setPriorityFiles for files in SDK.

pkg/analysis_server/test/analysis/set_priority_files_test.dart

Index: pkg/analysis_server/test/analysis/set_priority_files_test.dart
diff --git a/pkg/analysis_server/test/analysis/set_priority_files_test.dart b/pkg/analysis_server/test/analysis/set_priority_files_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..bb52a5e728a7afd906b958a7dfd0f90852f57f72
--- /dev/null
+++ b/pkg/analysis_server/test/analysis/set_priority_files_test.dart
@@ -0,0 +1,62 @@
+// 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.analysis.set_priority_files;
+
+import 'package:analysis_server/src/domain_analysis.dart';
+import 'package:analysis_server/src/protocol.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+import 'package:unittest/unittest.dart';
+
+import '../analysis_abstract.dart';
+import '../mocks.dart';
+import '../utils.dart';
+
+main() {
+  initializeTestEnvironment();
+  defineReflectiveTests(SetPriorityFilesTest);
+}
+
+@reflectiveTest
+class SetPriorityFilesTest extends AbstractAnalysisTest {
+  @override
+  void setUp() {
+    super.setUp();
+    server.handlers = [new AnalysisDomainHandler(server),];
+    createProject();
+  }
+
+  test_fileDoesNotExist() async {
+    String file = '$projectPath/doesNotExist.dart';
+    Response response = await _setPriorityFile(file);
+    expect(response, isResponseSuccess('0'));
+  }
+
+  test_fileInAnalysisRoot() async {
+    addTestFile('');
+    Response response = await _setPriorityFile(testFile);
+    expect(response, isResponseSuccess('0'));
+  }
+
+  test_fileInSdk() async {
+    addTestFile('');
+    await server.onAnalysisComplete;
+    Response response = await _setPriorityFile('/lib/convert/convert.dart');
+    expect(response, isResponseSuccess('0'));
+  }
+
+  test_fileNotInAnalysisRoot() async {
+    String path = '/other/file.dart';
+    addFile(path, '');
+    Response response = await _setPriorityFile(path);
+    expect(response.error, isNotNull);
+    expect(response.error.code, RequestErrorCode.UNANALYZED_PRIORITY_FILES);
+  }
+
+  _setPriorityFile(String file) async {
+    Request request =
+        new AnalysisSetPriorityFilesParams(<String>[file]).toRequest('0');
+    return await serverChannel.sendRequest(request);
+  }
+}