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commit850d392901e0d7f514ae97868b13caa8dd72c129[log] [tgz]
authorAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Thu Dec 14 00:10:35 2023 +0000
committerAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Thu Dec 14 00:10:35 2023 +0000
tree086e39eaed9d2f62e84cb1f541bd23711846dd2a
parentfc5be4ad3ba9f479e00385ecf97b985b50fe9d6b [diff]
parent2036074bd6aad3d80a43da0fd4506e2844b0194e [diff]
Snap for 11216811 from 2036074bd6aad3d80a43da0fd4506e2844b0194e to 24Q1-release

Change-Id: I44c4026385526926d829cac544452585d7fd1b79
tree: 086e39eaed9d2f62e84cb1f541bd23711846dd2a
  1. .github/
  2. annotations/
  3. buildSrc/
  4. errorprone/
  5. gradle/
  6. images/
  7. integration_tests/
  8. junit/
  9. nativeruntime/
  10. pluginapi/
  11. plugins/
  12. preinstrumented/
  13. processor/
  14. resources/
  15. robolectric/
  16. sandbox/
  17. scripts/
  18. shadowapi/
  19. shadows/
  20. testapp/
  21. utils/
  22. .gitignore
  23. .gitmodules
  24. Android.bp
  25. build.gradle
  26. CODE_OF_CONDUCT.md
  27. dependencies.gradle
  28. gradle.properties
  29. gradlew
  30. gradlew.bat
  31. LICENSE
  32. METADATA
  33. MODULE_LICENSE_MIT
  34. NOTICE
  35. OWNERS
  36. README.md
  37. settings.gradle
  38. WORKSPACE
README.md

Build Status GitHub release

Robolectric is the industry-standard unit testing framework for Android. With Robolectric, your tests run in a simulated Android environment inside a JVM, without the overhead and flakiness of an emulator. Robolectric tests routinely run 10x faster than those on cold-started emulators.

Robolectric supports running unit tests for 15 different versions of Android, ranging from KitKat (API level 19) to U (API level 34).

Usage

Here's an example of a simple test written using Robolectric:

@RunWith(AndroidJUnit4.class)
public class MyActivityTest {

  @Test
  public void clickingButton_shouldChangeResultsViewText() {
    Activity activity = Robolectric.setupActivity(MyActivity.class);

    Button button = (Button) activity.findViewById(R.id.press_me_button);
    TextView results = (TextView) activity.findViewById(R.id.results_text_view);

    button.performClick();
    assertThat(results.getText().toString(), equalTo("Testing Android Rocks!"));
  }
}

For more information about how to install and use Robolectric on your project, extend its functionality, and join the community of contributors, please visit http://robolectric.org.

Install

Starting a New Project

If you'd like to start a new project with Robolectric tests you can refer to deckard (for either maven or gradle) as a guide to setting up both Android and Robolectric on your machine.

build.gradle:

testImplementation "junit:junit:4.13.2"
testImplementation "org.robolectric:robolectric:4.11.1"

Building And Contributing

Robolectric is built using Gradle. Both IntelliJ and Android Studio can import the top-level build.gradle file and will automatically generate their project files from it.

Prerequisites

See Building Robolectric for more details about setting up a build environment for Robolectric.

Building

Robolectric supports running tests against multiple Android API levels. The work it must do to support each API level is slightly different, so its shadows are built separately for each. To build shadows for every API version, run:

./gradlew clean assemble testClasses --parallel

Testing

Run tests for all API levels:

The fully tests could consume more than 16G memory(total of physical and virtual memory).

./gradlew test --parallel

Run tests for part of supported API levels, e.g. run tests for API level 26, 27, 28:

./gradlew test --parallel -Drobolectric.enabledSdks=26,27,28

Run compatibility test suites on opening Emulator:

./gradlew connectedCheck

Using Snapshots

If you would like to live on the bleeding edge, you can try running against a snapshot build. Keep in mind that snapshots represent the most recent changes on master and may contain bugs.

build.gradle:

repositories {
    maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
}
dependencies {
    testImplementation "org.robolectric:robolectric:4.12-SNAPSHOT"
}