Reporting to Android (JUnit)
To set up your own JUnit test that makes use of cavy-native-reporter:
- Open your project's
androidfolder in Android Studio. - Create a file for your instrumented Android tests at
module-name/src/androidTest/java/. Switching to Project view in Android studio should help with this. Follow this link for more detailed instructions on setting up Instumented Android tests i.e. tests that run on an Android device or emulator. - Add the following dependencies to
android/app/build.gradleunderdependencies(don't touch thebuild.gradlein the app folder itself!):
dependencies: {
androidTestImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.0'
androidTestImplementation 'androidx.test:rules:1.1.0'
...
}
- Add the following to
android/app/build.gradleunderdefaultConfig:
defaultConfig {
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
...
}
- Write a test.
Taking the sample app as an example, we have an JUnit test BridgeTest which
waits for Cavy tests to run and fails if any test returns an error:
package com.sampleapp.bridgetest;
import androidx.test.rule.ActivityTestRule;
import org.junit.Rule;
import org.junit.Test;
import static org.junit.Assert.*;
import com.cavynativereporter.RNCavyNativeReporterModule;
// This should be the identifier for your own app's main activity.
import com.sampleapp.MainActivity;
public class BridgeTest {
// This rule launches the main activity before each test annotated with @Test.
@Rule
public ActivityTestRule<MainActivity> activityRule = new ActivityTestRule(MainActivity.class);
@Test
public void testBridge() throws Exception {
// Wait 60 seconds to receive a test report from Cavy.
RNCavyNativeReporterModule.waitForReport(60);
// Pull the error count from the report object.
double errorCount = RNCavyNativeReporterModule.cavyReport.getDouble("errorCount");
// Note: Third argument is the `delta` allowed between the actual and
// expected double value.
assertEquals(0.0, errorCount, 0.0);
}
}