How to turn on console output in Android Unit tests?

Question

Is there any way to turn on the test logging in the console output?

I know that we can look at the test results generated in a HTML file and check standard output there, but I find it a little bit inconvinient.

I know that there is a way to do this with standard java plugin:

test {
    testLogging {
        events "passed", "skipped", "failed", "standardOut", "standardError"
    }
}

But using it in an Android project causes an error:

Could not find method test()

Applying java plugin is unacceptable, of course, as it's not compatible with Android plugins.

Which console do you mean? All logs are came from device. Logcat tool fetches all logs. — eleven
– eleven, Commented Mar 3, 2015 at 12:46
Sorry, maybe I didn't express myself clear enough. I meant Android unit tests performed on JVM, started from simple terminal via gradle wrapper (so logcat is out of question) — scana
– scana, Commented Mar 3, 2015 at 12:58

ninjahoahong · Accepted Answer · 2015-12-15 20:57:23Z

53

android {

...

  testOptions {
        unitTests.all {
        // All the usual Gradle options.
            testLogging {
                events "passed", "skipped", "failed", "standardOut", "standardError"
                outputs.upToDateWhen {false}
                showStandardStreams = true
            }
        }
    } 
}

In my case, I followed this document and added the testLogging option as above. This should printout the log for the unit tests written under src/test folder but not the src/androidTest one. At the moment of this answer, I was using Android Studio 2.0 preview and gradle 2.8. The commands were ./gradlew test and ./gradlew test --continuein which ran in iTerm 2.

answered Dec 15, 2015 at 20:57

ninjahoahong

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ninjahoahong Over a year ago

For running the test under src/androidTest, I right click the package and choose Run 'Tests in 'com.example... using Android Studio.

Kavi · Accepted Answer · 2015-07-15 14:32:00Z

8

This should do it

android {

...

  testOptions.unitTests.all {
    testLogging {
      events 'passed', 'skipped', 'failed', 'standardOut', 'standardError'
    }
  }
}

Source: https://groups.google.com/forum/#!topic/adt-dev/LwZiKTnj8Bc

answered Jul 15, 2015 at 14:32

Kavi

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Comments

Oleksandr · Accepted Answer · 2015-12-18 09:38:03Z

3

Even more pretty solution than @ninjahoahong's (Thanks to Tricky Android blog).

Just add next code to your project level build.gradle to allprojects' body:

allprojects {
    // ...
    tasks.matching {it instanceof Test}.all {
        testLogging.events = ["failed", "passed", "skipped"]
    }
}

answered Dec 18, 2015 at 9:38

Oleksandr

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