Tests pass for shared prefs plugin

Author: collinjackson

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

@@ -60,9 +60,8 @@ dependencies {
     androidTestImplementation 'androidx.test:runner:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
 
-
     // Core library
-    androidTestImplementation 'androidx.test:core:1.0.0'
+    androidTestImplementation 'androidx.test:core:1.2.0'
 
     // AndroidJUnitRunner and JUnit Rules
     androidTestImplementation 'androidx.test:runner:1.1.0'

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

@@ -55,6 +55,8 @@ flutter {
 
 dependencies {
     testImplementation 'junit:junit:4.12'
+    testImplementation "com.google.truth:truth:1.0"
     androidTestImplementation 'androidx.test:runner:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+    api 'androidx.test:core:1.2.0'
 }

packages/shared_preferences/shared_preferences/example/android/app/src/androidTest/java/io/flutter/plugins/sharedpreferencesexample/SharedPreferencesIntegrationTest.java

@@ -8,6 +8,7 @@
 import androidx.test.espresso.flutter.action.FlutterActions;
 import androidx.test.espresso.flutter.assertion.FlutterAssertions;
 import androidx.test.espresso.flutter.matcher.FlutterMatchers;
+import androidx.test.espresso.NoActivityResumedException;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.rule.ActivityTestRule;
 import org.junit.Before;
@@ -18,8 +19,12 @@
 @RunWith(AndroidJUnit4.class)
 public final class SharedPreferencesIntegrationTest {
 
+    @Rule
+    public ActivityTestRule<MainActivity> myActivityTestRule =
+            new ActivityTestRule<>(MainActivity.class, true, false);
+
     @Before
-    public void setUp() throws Exception {
+    public void setUp() {
         ActivityScenario.launch(MainActivity.class);
     }
 
@@ -32,14 +37,9 @@ public void tapToCheckPersistentData() throws Exception {
                         FlutterAssertions.matches(
                                 FlutterMatchers.withText(
                                         "Button tapped 1 time.\n\nThis should persist across restarts.")));
-        // go back to main page
-        pressBack();
-        // close the application
         pressBackUnconditionally();
         // reopen the application
-        ActivityScenario.launch(MainActivity.class);
-        onFlutterWidget(FlutterMatchers.withText("Shared Preferences Sample"))
-                .perform(FlutterActions.click());
+        myActivityTestRule.launchActivity(null);
         onFlutterWidget(FlutterMatchers.withValueKey("ResultText"))
                 .check(
                         FlutterAssertions.matches(

packages/shared_preferences/shared_preferences/example/test_driver/shared_preferences.dart

@@ -0,0 +1,8 @@
+import 'package:flutter_driver/driver_extension.dart';
+
+import '../lib/main.dart' as app;
+
+void main() {
+  enableFlutterDriverExtension();
+  app.main();
+}