Add support for launching emulators
diff --git a/packages/flutter_tools/test/emulator_test.dart b/packages/flutter_tools/test/emulator_test.dart
index d7e3945..e8b70ef 100644
--- a/packages/flutter_tools/test/emulator_test.dart
+++ b/packages/flutter_tools/test/emulator_test.dart
@@ -61,4 +61,10 @@
   @override
   final String label;
 
+  @override
+  void launch() {
+    throw new UnimplementedError('Not implemented in Mock');
+  }
+
+  
 }