Android Test Case - how to view output?

Question

I'm using AndroidTestCase for unit testing. I have a unit test which is failing, but I haven't figured out how to display output from it. For example, I don't see the values I print using Log.d or System.out.println in the console nor the logcat output.

How do I view the unit test console?

score 51 · Answer 1 · answered May 11 '17 at 13:21

51

With Android Studio 2.3.1, works using the old fashioned Java styled

System.out.println("Start Test");

Here you can see the output:

answered May 11 '17 at 13:21

Jorge Casariego

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score 32 · Accepted Answer · answered Mar 27 '11 at 22:37

32

You shoud see the Log.d() messages in logcat unless your test is crashing much before (i.e in the constructor).

answered Mar 27 '11 at 22:37

Diego Torres Milano

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score 7 · Answer 3 · answered Jun 28 '20 at 06:19

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In my case ,

System.out.println("Test") is working for JUnits tests,

Log.d("tag" , "Test") is working for AndroidJUnit tests(Instrumented)

answered Jun 28 '20 at 06:19

Nabzi

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score 6 · Answer 4 · answered Mar 06 '15 at 00:30

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Go to Debug --> Logcat. Make sure the LogLevel and Filter are correct as well.

See the screenshot from Android Studio 1.1.0

From Android Studio 1.1.0

answered Mar 06 '15 at 00:30

tmin

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score 2 · Answer 5 · edited Jul 31 '18 at 17:32

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Just to be clear, if you're running an emulator you have to use adb logcat.

Also, make sure you're using the standard android.util.Log.d() to send your output.

edited Jul 31 '18 at 17:32

Willi Mentzel

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answered Apr 07 '14 at 15:02

Joshua Pinter

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Android Studio running Unit tests doesn't always connect to a device. In my case, there is no emulator or phone, robolectric tests are run entirely in the jre. – Mooing Duck Jan 20 '17 at 20:48

score 0 · Answer 6 · answered Aug 29 '12 at 02:40

0

You probably disconnected the device/emulator and reconnected. You have to click on the device name again in the list in the Dalvik Debug Monitor for it to reload the logs and keep updating the output.

answered Aug 29 '12 at 02:40

Chloe

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Android Test Case - how to view output?

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