Update to latest version of mockito - all 17 tests passed.

    // Required for local unit tests (JUnit 4 framework)

    testImplementation 'junit:junit:4.12'

    // required if you want to use Mockito for unit tests

    testImplementation 'org.mockito:mockito-core:2.27.0'

    testImplementation 'org.mockito:mockito-core:3.0.0'

}