Add an integration test for execution.setSubscriptions.

pkg/analysis_server/test/integration/execution/set_subscription_test.dart

+// Copyright (c) 2017, 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.
+
+import 'package:analysis_server/plugin/protocol/protocol.dart';
+import 'package:test/test.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import '../integration_tests.dart';
+
+main() {
+  defineReflectiveSuite(() {
+    defineReflectiveTests(SetSubscriptionTest);
+  });
+}
+
+@reflectiveTest
+class SetSubscriptionTest extends AbstractAnalysisServerIntegrationTest {
+  // Bad state: Should not be used with the new analysis driver (#28806)
+  @failingTest
+  test_create() async {
+    writeFile(sourcePath('.packages'), 'foo:lib/');
+    standardAnalysisSetup();
+    await sendExecutionSetSubscriptions([ExecutionService.LAUNCH_DATA]);
+
+    String contextId =
+        (await sendExecutionCreateContext(sourceDirectory.path)).id;
+    expect(contextId, isNotNull);
+
+    String pathname = sourcePath('lib/main.dart');
+    writeFile(pathname, 'void main() {}');
+
+    ExecutionLaunchDataParams data = await onExecutionLaunchData.first;
+    expect(data.kind, ExecutableKind.SERVER);
+    expect(data.file, pathname);
+  }
+
+  @override
+  bool get enableNewAnalysisDriver => true;
+}