# Activity Sanity Tests This type of test checks if an Activity doesn't crash at start up. For this project this type of test is usefull since a lot of core crashes occurs at this point and are ideal to test regressions. The only run for 1 sec each so there are fast and fairly reliable. We are currently generating the test stack from every Activity found in the following package: > com.mapbox.mapboxsdk.testapp The generation is done by executing: > make android-generate-test This command underneath executes the following js file found in: > node scripts/android-generate-test and uses the following ejs file as a template. >platform/android/MapboxGLAndroidSDKTestApp/src/androidTest/java/com/mapbox/mapboxsdk/activity/activity.junit.ejs