@Test
public void equals_notEqualIfDifferentInstance() {

  GoogleAdsClient clientA =
      GoogleAdsClient.newBuilder()
          .setCredentials(fakeCredentials)
          .setDeveloperToken(DEVELOPER_TOKEN)
          .setEnableGeneratedCatalog(enabledGeneratedCatalog)
          .build();
  GoogleAdsClient clientB =
      GoogleAdsClient.newBuilder()
          .setCredentials(fakeCredentials)
          .setDeveloperToken(DEVELOPER_TOKEN)
          .setEnableGeneratedCatalog(enabledGeneratedCatalog)
          .build();
  assertNotEquals("different instances should not be equal", clientA, clientB);
}