<dependency>
  <groupId>com.google.android</groupId>
  <artifactId>android-test</artifactId>
  <version>1.6_r2</version>
</dependency>

implementation 'com.google.android:android-test:1.6_r2'

implementation("com.google.android:android-test:1.6_r2")

libraryDependencies += "com.google.android" % "android-test" % "1.6_r2"

@Grapes(
  @Grab(group='com.google.android', module='android-test', version='1.6_r2')
)

<dependency org="com.google.android" name="android-test" rev="1.6_r2" />

[com.google.android/android-test "1.6_r2"]

'com.google.android:android-test:jar:1.6_r2'