[google_maps] Add initial google_maps tests

.cirrus.yml

@@ -27,6 +27,7 @@ task:
         matrix:
           PLUGIN_SHARDING: "--shardIndex 0 --shardCount 2"
           PLUGIN_SHARDING: "--shardIndex 1 --shardCount 2"
+        MAPS_API_KEY: ENCRYPTED[8b59d83bf4e55b0360b7183a2011241f4e22ba27e31cf06037f7e6e59fa7f9022d82ee604547f8a27d1ceba325cc2588]
       create_device_script:
         echo no | avdmanager -v create avd -n test -k "system-images;android-21;default;armeabi-v7a"
       start_emulator_background_script:

packages/google_maps_flutter/android/src/main/java/io/flutter/plugins/googlemaps/GoogleMapController.java

@@ -199,6 +199,12 @@ public void onMethodCall(MethodCall call, MethodChannel.Result result) {
           markersController.changeMarkers((List<Object>) markersToChange);
           Object markerIdsToRemove = call.argument("markerIdsToRemove");
           markersController.removeMarkers((List<Object>) markerIdsToRemove);
+          result.success(null);
+          break;
+        }
+      case "map#isCompassEnabled":
+        {
+          result.success(googleMap.getUiSettings().isCompassEnabled());
           break;
         }
       default:

packages/google_maps_flutter/example/android/app/build.gradle

@@ -40,6 +40,10 @@ android {
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
+    defaultConfig {
+        manifestPlaceholders = [mapsApiKey: "$System.env.MAPS_API_KEY"]
+    }
+
     buildTypes {
         release {
             // TODO: Add your own signing config for the release build.

packages/google_maps_flutter/example/android/app/src/main/AndroidManifest.xml

@@ -13,7 +13,7 @@
             android:value="@integer/google_play_services_version" />
         <meta-data
             android:name="com.google.android.geo.API_KEY"
-            android:value="YOUR KEY HERE" />
+            android:value="${mapsApiKey}" />
         <activity
             android:name=".MainActivity"
             android:launchMode="singleTop"

packages/google_maps_flutter/example/pubspec.yaml

@@ -10,11 +10,11 @@ dependencies:
   cupertino_icons: ^0.1.0
 
 dev_dependencies:
-  flutter_test:
-    sdk: flutter
-
   google_maps_flutter:
     path: ../
+  flutter_driver:
+    sdk: flutter
+  test: any
 
 # For information on the generic Dart part of this file, see the
 # following page: https://www.dartlang.org/tools/pub/pubspec

packages/google_maps_flutter/example/test_driver/google_maps.dart

@@ -0,0 +1,87 @@
+// Copyright 2019, the Chromium 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 'dart:async';
+
+import 'package:flutter/widgets.dart';
+import 'package:flutter_driver/driver_extension.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:google_maps_flutter/google_maps_flutter.dart';
+
+import 'google_maps_test_controller.dart';
+
+const CameraPosition _kInitialCameraPosition =
+    CameraPosition(target: LatLng(0, 0));
+
+class GoogleMapTest extends StatefulWidget {
+  GoogleMapTest(
+    this.mapState,
+    this._controllerCompleter,
+  );
+
+  final _GoogleMapTestState mapState;
+  final Completer<GoogleMapController> _controllerCompleter;
+
+  @override
+  _GoogleMapTestState createState() => mapState;
+}
+
+class _GoogleMapTestState extends State<GoogleMapTest> {
+  bool _compassEnabled = false;
+
+  @override
+  Widget build(BuildContext context) {
+    return Directionality(
+      textDirection: TextDirection.ltr,
+      child: GoogleMap(
+        initialCameraPosition: _kInitialCameraPosition,
+        compassEnabled: _compassEnabled,
+        onMapCreated: (GoogleMapController controller) {
+          widget._controllerCompleter.complete(controller);
+        },
+      ),
+    );
+  }
+
+  void toggleCompass() {
+    setState(() {
+      _compassEnabled = !_compassEnabled;
+    });
+  }
+}
+
+void main() {
+  final Completer<String> allTestsCompleter = Completer<String>();
+  enableFlutterDriverExtension(handler: (_) => allTestsCompleter.future);
+
+  tearDownAll(() => allTestsCompleter.complete(null));
+
+  _GoogleMapTestState mapTestState;
+  GoogleMapController controller;
+  GoogleMapTestController testController;
+
+  setUp(() async {
+    mapTestState = _GoogleMapTestState();
+    final Completer<GoogleMapController> controllerCompleter =
+        Completer<GoogleMapController>();
+    runApp(GoogleMapTest(mapTestState, controllerCompleter));
+    controller = await controllerCompleter.future;
+    testController = GoogleMapTestController(controller.getMethodChannel());
+  });
+
+  test('testCompassToggle', () async {
+    bool compassEnabled;
+
+    compassEnabled = await testController.isCompassEnabled();
+    expect(compassEnabled, false);
+
+    mapTestState.toggleCompass();
+
+    // This delay exists as we are waiting for a new build to occur.
+    await Future<void>.delayed(Duration(seconds: 1), () {});
+
+    compassEnabled = await testController.isCompassEnabled();
+    expect(compassEnabled, true);
+  });
+}

packages/google_maps_flutter/example/test_driver/google_maps_test.dart

@@ -0,0 +1,13 @@
+// Copyright 2019, the Chromium 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 'dart:async';
+
+import 'package:flutter_driver/flutter_driver.dart';
+
+Future<void> main() async {
+  final FlutterDriver driver = await FlutterDriver.connect();
+  await driver.requestData(null, timeout: const Duration(minutes: 1));
+  driver.close();
+}

packages/google_maps_flutter/example/test_driver/google_maps_test_controller.dart

@@ -0,0 +1,15 @@
+// Copyright 2019, the Chromium 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:flutter/services.dart';
+
+class GoogleMapTestController {
+  GoogleMapTestController(this._channel);
+
+  final MethodChannel _channel;
+
+  Future<bool> isCompassEnabled() async {
+    return await _channel.invokeMethod<bool>('map#isCompassEnabled');
+  }
+}

packages/google_maps_flutter/lib/src/controller.dart

@@ -7,12 +7,11 @@ part of google_maps_flutter;
 /// Controller for a single GoogleMap instance running on the host platform.
 class GoogleMapController {
   GoogleMapController._(
-    MethodChannel channel,
+    this.channel,
     CameraPosition initialCameraPosition,
     this._googleMapState,
-  )   : assert(channel != null),
-        _channel = channel {
-    _channel.setMethodCallHandler(_handleMethodCall);
+  ) : assert(channel != null) {
+    channel.setMethodCallHandler(_handleMethodCall);
   }
 
   static Future<GoogleMapController> init(
@@ -34,7 +33,8 @@ class GoogleMapController {
     );
   }
 
-  final MethodChannel _channel;
+  @visibleForTesting
+  final MethodChannel channel;
 
   final _GoogleMapState _googleMapState;
 
@@ -79,7 +79,7 @@ class GoogleMapController {
     // TODO(amirh): remove this on when the invokeMethod update makes it to stable Flutter.
     // https://github.com/flutter/flutter/issues/26431
     // ignore: strong_mode_implicit_dynamic_method
-    await _channel.invokeMethod(
+    await channel.invokeMethod(
       'map#update',
       <String, dynamic>{
         'options': optionsUpdate,
@@ -98,7 +98,7 @@ class GoogleMapController {
     // TODO(amirh): remove this on when the invokeMethod update makes it to stable Flutter.
     // https://github.com/flutter/flutter/issues/26431
     // ignore: strong_mode_implicit_dynamic_method
-    await _channel.invokeMethod(
+    await channel.invokeMethod(
       'markers#update',
       markerUpdates._toMap(),
     );
@@ -112,7 +112,7 @@ class GoogleMapController {
     // TODO(amirh): remove this on when the invokeMethod update makes it to stable Flutter.
     // https://github.com/flutter/flutter/issues/26431
     // ignore: strong_mode_implicit_dynamic_method
-    await _channel.invokeMethod('camera#animate', <String, dynamic>{
+    await channel.invokeMethod('camera#animate', <String, dynamic>{
       'cameraUpdate': cameraUpdate._toJson(),
     });
   }
@@ -125,8 +125,13 @@ class GoogleMapController {
     // TODO(amirh): remove this on when the invokeMethod update makes it to stable Flutter.
     // https://github.com/flutter/flutter/issues/26431
     // ignore: strong_mode_implicit_dynamic_method
-    await _channel.invokeMethod('camera#move', <String, dynamic>{
+    await channel.invokeMethod('camera#move', <String, dynamic>{
       'cameraUpdate': cameraUpdate._toJson(),
     });
   }
+
+  // TODO(iskakaushik): dart doc.
+  MethodChannel getMethodChannel() {
+    return channel;
+  }
 }

packages/google_maps_flutter/pubspec.yaml

@@ -12,6 +12,12 @@ dev_dependencies:
   flutter_test:
     sdk: flutter
 
+  # TODO(iskakaushik): The following dependencies can be removed once
+  # https://github.com/dart-lang/pub/issues/2101 is resolved.
+  flutter_driver:
+    sdk: flutter
+  test: any
+
 flutter:
   plugin:
     androidPackage: io.flutter.plugins.googlemaps