Library source does not match the byte code

[lwasyl]

For some classes, like ViewInteraction or RootViewPicker, IDE reports that library source doesn't match the byte code:

This makes it quite difficult to debug issues step by step

Espresso 3.2.0

[yongjiliu]

Same Problem

[yogurtearl]

This is likely because jarjar is used to shade Guava deps during the build, that seems to mess up the debug symbols/line numbers in the resulting class files.

https://github.com/android/android-test/blob/45073bc6751ab0c5cb5cb2349fab1610971735ef/espresso/core/java/androidx/test/espresso/remote/release_jarjar_rules.txt#L1

[yogurtearl]

I confirmed that removing jarjar fixes this. I downloaded and build the code locally with jarjar disabled, and this problem goes away.

[yogurtearl]

A couple of options to fix this:

1. Fix jarjar so that it keeps line numbers intact, and the published -sources.jar matches the published .jar
2. Remove jarjar
   • The guava usages can be fairly easily removed and replaced with kotlin or inline copy/paste from Guava.
   • The Dagger usage can just be declared as a proper transitive dep.
3. Convert the build to gradle like the rest of AndroidX and either don't shadow anything or use the shadow plugin.

[brettchabot]

Please give espresso 3.6.0-alpha01 a try. It still uses jarjar to rename dagger, but guava has been removed entirely.