| commit | 0f4bd41c2b1a6a1dbec2245d614d37de52a27778 | [log] [tgz] |
|---|---|---|
| author | Jason Chiu <chiujason@google.com> | Thu Sep 02 16:11:30 2021 +0800 |
| committer | Jason Chiu <chiujason@google.com> | Thu Sep 02 09:47:55 2021 +0000 |
| tree | d11dcdb09128eda5a3901c5e2e4001f29d2ac037 | |
| parent | 91d4dfc7275c0bd3e96566e95f98fa934baf19b6 [diff] |
Fix the ArrayIndexOutOfBoundsException of ByteBucketArray The framework starts to use a preserved staging-public-group for new attributes on the new platform. The group has a bigger bucket id whose leading bit is 1, which causes a Java signed/unsigned number problem in multiple byte-integer conversions. The bucket id has four bits which has a maximum number 15(0xf). However, when the leading bit is 1, Java will auto-cast the byte to a negative integer and cause an ArrayIndexOutOfBoundsException. To solve this, converting the id to an unsigned integer can help Java treat it as a positive number. Fixes: 197494608 Bug: 196297712 Test: robotest Change-Id: Ie5027621df2bf134ca5c5cee60c423db47f47ca7
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 of an emulator.
Here's an example of a simple test written using Robolectric:
@RunWith(RobolectricTestRunner.class) public class MyActivityTest { @Test public void clickingButton_shouldChangeResultsViewText() throws Exception { 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.
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.
testImplementation "org.robolectric:robolectric:4.1"
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.
You will need to have portions of the Android SDK available in your local Maven artifact repository in order to build Robolectric. Copy all required Android dependencies to your local Maven repo by running:
./scripts/install-dependencies.rb
Note: You'll need Maven installed, ANDROID_HOME set and to have the SDK and Google APIs for API Level 27 downloaded to do this.
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 install compileTest
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.
repositories { maven { url "https://oss.sonatype.org/content/repositories/snapshots" } } dependencies { testImplementation "org.robolectric:robolectric:4.2-SNAPSHOT" }