Gradle: How to display androidTest results in the console?

Question

As explained in other threads Gradle can be configured to log test results into the console:

• Gradle Android: How to Display test results without using --info
• Gradle: How to Display Test Results in the Console in Real Time?
• Output unit testing results on console using spock junit testing and gradle build system

Basically, this can be setup through the following task:

tasks.withType(Test) {
    testLogging {
       // Custom configuration
    }
}

This works fine for unit tests and looks somewhat like this:

...
:app:assembleDebugUnitTest
:app:testDebugUnitTest
:app:processDebugResources

com.example.StringsTest > formatValue PASSED
com.example.StringsTest > formatValueWithDecimals FAILED

1 test completed, 1 failed

Besides, unit tests I also run integration test using the following command:

$ ./gradlew connectedAndroidTest

When I look at the output in the console I am missing the individual test results as being written for unit tests. How can I configure test logging for instrumentation tests?

Answer 1

Connected tests log output and events to logcat, as it runs on a device/emulator. Test events are logged under TestRunner tag.

I use the following script to start adb logcat in the background, which logs TestRunner events as tests are being executed, and kill the logcat process afterwards.

adb logcat *:S TestRunner:V -T 1 & LOGCAT_PID=$! ; \
./gradlew :app:cAT ; \
if [ -n "$LOGCAT_PID" ] ; then kill $LOGCAT_PID; fi

which produces something like this:

[1] 90439
--------- beginning of system
--------- beginning of main
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
...
:app:packageDebugAndroidTest UP-TO-DATE
:app:assembleDebugAndroidTest UP-TO-DATE
> Building 96% > :app:connectedDebugAndroidTest06-13 09:25:04.259  5460  5474 I TestRunner: run started: 23 tests
06-13 09:25:04.267  5460  5474 I TestRunner: started: testHomeClick(io.github.hidroh.tldroid.CommandActivityTest)
06-13 09:25:06.899  5460  5474 I TestRunner: finished: testHomeClick(io.github.hidroh.tldroid.CommandActivityTest)
06-13 09:25:06.903  5460  5474 I TestRunner: started: testRenderNoContent(io.github.hidroh.tldroid.CommandActivityTest)
06-13 09:25:08.128  5460  5474 I TestRunner: finished: testRenderNoContent(io.github.hidroh.tldroid.CommandActivityTest)
06-13 09:25:08.130  5460  5474 I TestRunner: started: testStateRestoration(io.github.hidroh.tldroid.CommandActivityTest)
06-13 09:25:09.547  5460  5474 I TestRunner: finished: testStateRestoration(io.github.hidroh.tldroid.CommandActivityTest)
...
06-13 09:25:35.283  5460  5474 I TestRunner: run finished: 23 tests, 0 failed, 0 ignored
:app:connectedDebugAndroidTest
:app:createDebugAndroidTestCoverageReport
:app:connectedAndroidTest

BUILD SUCCESSFUL

Total time: 1 mins 7.485 secs
[1]+  Terminated: 15          adb logcat *:S TestRunner:V

You can of course tweak logcat command to use a logger of your choice, e.g. a color logger, or change logcat filterspec to show more events.

Answer 2

The easy version is just to use:

./gradlew connectedAndroidTest --info

it take a littlebit to log it in the terminal/console window, but it's showing everything nice, colored and formatted

like …

…ShowsIntroduction[SM-G950F - 7.0] SUCCESS 
…BackButtonReturnsToOnboardingScreen[SM-G950F - 7.0] SKIPPED

good luck && have fun