Getting started

1. Go to android/app/src/androidTest/java/com/example/myapp/ in your project directory. If there are no such folders, create them. Remember to replace /com/example/myapp/ with the path created by your app's package name.

2. Create a file named MainActivityTest.java and copy there the code below.

package com.example.myapp; // replace "com.example.myapp" with your app's package

import androidx.test.platform.app.InstrumentationRegistry;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
import pl.leancode.patrol.PatrolJUnitRunner;

@RunWith(Parameterized.class)
public class MainActivityTest {
    @Parameters(name = "{0}")
    public static Object[] testCases() {
        PatrolJUnitRunner instrumentation = (PatrolJUnitRunner) InstrumentationRegistry.getInstrumentation();
        // replace "MainActivity.class" with "io.flutter.embedding.android.FlutterActivity.class" 
        // if in AndroidManifest.xml in manifest/application/activity you have
        //     android:name="io.flutter.embedding.android.FlutterActivity"
        instrumentation.setUp(MainActivity.class);
        instrumentation.waitForPatrolAppService();
        return instrumentation.listDartTests();
    }

    public MainActivityTest(String dartTestName) {
        this.dartTestName = dartTestName;
    }

    private final String dartTestName;

    @Test
    public void runDartTest() {
        PatrolJUnitRunner instrumentation = (PatrolJUnitRunner) InstrumentationRegistry.getInstrumentation();
        instrumentation.runDartTest(dartTestName);
    }
}

3. Go to the build.gradle file, located in android/app folder in your project directory.

4. Add these 2 lines to the defaultConfig section:

  testInstrumentationRunner "pl.leancode.patrol.PatrolJUnitRunner"
  testInstrumentationRunnerArguments clearPackageData: "true"

5. Add this section to the android section:

  testOptions {
    execution "ANDROIDX_TEST_ORCHESTRATOR"
  }

6. Add this line to dependencies section:

  androidTestUtil "androidx.test:orchestrator:1.4.2"

  ...
  buildTypes {
    release {
        ...
    }
    debug {
        minifyEnabled false
        shrinkResources false
    }
  }

1. Open ios/Runner.xcworkspace in Xcode.

2. Create a test target if you do not already have one (see the screenshot below for the reference). Select File > New > Target... and select UI Testing Bundle. Change the Product Name to RunnerUITests. Set the Organization Identifier to be the same as for the Runner (no matter if you app has flavors or not). For our example app, it's com.example.MyApp just as in the pubspec.yaml file. Make sure Target to be Tested is set to Runner and language is set to Objective-C. Select Finish.

3. 2 files are created: RunnerUITests.m and RunnerUITestsLaunchTests.m. Delete RunnerUITestsLaunchTests.m through Xcode by clicking on it and selecting Move to Trash.

4. Make sure that the iOS Deployment Target of RunnerUITests within the Build Settings section is the same as Runner. The minimum supported iOS Deployment Target is 11.0. For the example app, we set it to 13.0 because it's required by the app dependencies.

5. Replace contents of RunnerUITests.m file with the following:

@import XCTest;
@import patrol;
@import ObjectiveC.runtime;

PATROL_INTEGRATION_TEST_IOS_RUNNER(RunnerUITests)

Add the newly created target to ios/Podfile by embedding in the existing Runner target.

target 'Runner' do
  # Do not change existing lines.
  ...

  target 'RunnerUITests' do
    inherit! :complete
  end
end

6. Create an empty file integration_test/example_test.dart in the root of your Flutter project. From the command line, run the following command and make sure it completes with no errors:

$ flutter build ios --config-only integration_test/example_test.dart

7. Go to your ios directory and run:

$ pod install --repo-update

8. Open your Xcode project and Make sure that for each build configuration, the RunnerUITests have the same Configuration Set selected as the Runner:

9. Go to RunnerUITests -> Build Phases and add 2 new "Run Script Phase" Build Phases. Name them xcode_backend build and xcode_backend embed_and_thin.

10. Arrange the newly created Build Phases in the order shown in the screenshot below.

11. Paste this code into the xcode_backend build Build Phase:

/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build

12. Paste this code into the xcode_backend embed_and_thin Build Phase:

/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed_and_thin

13. Xcode by default also enables a "parallel execution" setting, which breaks Patrol. Disable it for all schemes (if you have more than one):

14. Go to RunnerUITests -> Build Settings, search for User Script Sandboxing and make sure it's set to No.