Is it possible to find out if an Android application runs as part of an instrumentation test

Question

Is there a runtime check for an application to find out if it runs as part of an instrumentation test?

Background: Our application performs a database sync when star

Answer 1

A much simpler solution is check for a class that would only be present in a test classpath, works with JUnit 4 (unlike the solution using ActivityUnitTestCase) and doesn't require to send custom intents to your Activities / Services (which might not even be possible in some cases)

private boolean isTesting() {
    try {
        Class.forName("com.company.SomeTestClass");
        return true;
    } catch (ClassNotFoundException e) {
        return false;
    }
}