File-based and multicast InstrumentationServer implementations.

pkg/analyzer/test/instrumentation/instrumentation_test.dart

Index: pkg/analyzer/test/instrumentation/instrumentation_test.dart
diff --git a/pkg/analyzer/test/instrumentation/instrumentation_test.dart b/pkg/analyzer/test/instrumentation/instrumentation_test.dart
index a0345a7267508b803f63b2ad6f4b66efcb2b6b67..fee99bcbe581a69ae640d7dac8962c96866fb742 100644
--- a/pkg/analyzer/test/instrumentation/instrumentation_test.dart
+++ b/pkg/analyzer/test/instrumentation/instrumentation_test.dart
@@ -12,6 +12,7 @@ import '../reflective_tests.dart';
 main() {
   group('instrumentation', () {
     runReflectiveTests(InstrumentationServiceTest);
+    runReflectiveTests(MulticastInstrumentationServerTest);
   });
 }
 
@@ -80,6 +81,47 @@ class InstrumentationServiceTest extends ReflectiveTestCase {
   }
 }
 
+@ReflectiveTestCase()
+class MulticastInstrumentationServerTest extends ReflectiveTestCase {
+  TestInstrumentationServer serverA = new TestInstrumentationServer();
+  TestInstrumentationServer serverB = new TestInstrumentationServer();
+  MulticastInstrumentationServer server;
+
+  void setUp() {
+    server = new MulticastInstrumentationServer([serverA, serverB]);
+  }
+
+  void test_log() {
+    server.log('foo bar');
+    _assertNormal(serverA, 'foo bar');
+    _assertNormal(serverB, 'foo bar');
+  }
+
+  void test_logWithPriority() {
+    server.logWithPriority('foo bar');
+    _assertPriority(serverA, 'foo bar');
+    _assertPriority(serverB, 'foo bar');
+  }
+
+  void test_shutdown() {
+    server.shutdown();
+  }
+
+  void _assertNormal(TestInstrumentationServer server, String message) {
+    String sent = server.normalChannel.toString();
+    if (!sent.endsWith('$message\n')) {
+      fail('Expected "...$message", found "$sent"');
+    }
+  }
+
+  void _assertPriority(TestInstrumentationServer server, String message) {
+    String sent = server.priorityChannel.toString();
+    if (!sent.endsWith('$message\n')) {
+      fail('Expected "...$message", found "$sent"');
+    }
+  }
+}
+
 class TestInstrumentationServer implements InstrumentationServer {
   StringBuffer normalChannel = new StringBuffer();
   StringBuffer priorityChannel = new StringBuffer();