Robolectric and Android SDK 29

Question

When will Robolectric be compatible with Android SDK 29? Did I upgraded too early by changing targetSdkVersion and compileSdkVersion to 29?

Answer 1

With Robolectric 4.3.1 we can use the following alternatives:

1. Run our test with Java 9 or newer. (We can edit the JRE in the run test configuration)

If we like to run our test with Java 8, we can:

2. Annotated our test class with @Config in order to emulate a lower SDK (as mentioned by @bencri and @julio-mendoza).

Like this:

@RunWith(AndroidJUnit4::class)
@Config(sdk = [Build.VERSION_CODES.P])
class LoginRobolectricTest {
//...
}

3. Or, as mentioned @farmerbb, add the robolectric.properties file inside the app/src/test/resources folder with the SDK we like to run, by example:

sdk=28

Answer 2

Latest Robolectric 4.3 already supports Android Q (https://github.com/robolectric/robolectric/releases)

Answer 3

Create a robolectric.properties file inside the app/src/test/resources directory with the following line:

sdk=28

This will force Robolectric to use API 28 instead of 29.

Answer 4

If anyone is wondering, the solution for me was to annotate my test classes with

@Config(sdk = Build.VERSION_CODES.O_MR1)