todoapp/app/proguardTest-rules.pro (12 lines of code) (raw):
# Proguard rules that are applied to your test apk/code.
-ignorewarnings
-keepattributes *Annotation*
-dontnote junit.framework.**
-dontnote junit.runner.**
-dontwarn android.test.**
-dontwarn android.support.test.**
-dontwarn org.junit.**
-dontwarn org.hamcrest.**
-dontwarn com.squareup.javawriter.JavaWriter
# Uncomment this if you use Mockito
-dontwarn org.mockito.**