Build: AI-191.7479.19.35.5675373, 201906200751, AI-191.7479.19.35.5675373, JRE 1.8.0_202-release-1483-b49-5587405x64 JetBrains s.r.o, OS Linux(amd64) v4.19.37-5rodete2-amd64, screens 2560x1600, 1920x1200AS: 3.5 Beta 5; Android Gradle Plugin: 3.5.0-beta05; Gradle: 5.5.1; NDK: from local.properties: (not specified), latest from SDK: 19.2.5345600; LLDB: pinned revision 3.1 not found, latest from SDK: (package not found); CMake: from local.properties: (not specified), latest from SDK: 3.10.2, from PATH: (not found) IMPORTANT: Please read https://developer.android.com/studio/report-bugs.html carefully and supply all required information.

Studio doesn't respect testOptions.animationsDisabled. This is documented as intended, but means local test runs are always slower in these projects.

https://google.github.io/android-gradle-dsl/current/com.android.build.gradle.internal.dsl.TestOptions.html#com.android.build.gradle.internal.dsl.TestOptions:animationsDisabled

The only way I've found to set it in a way that's respected by both is to create a fake runner argument, and inject the parameter:

android {
defaultConfig {
testInstrumentationRunnerArgument 'thisisignored', 'thisisignored --no-window-animation'
}
}