assertThat(findClassesToTest(ImmutableList.of(Foo.class, Foo2Test.class)))
        .containsExactly(Foo.class);
  }

  public void testFindClassesToTest_publicApiOnly() {
    sanityTests.publicApiOnly();
    assertThat(findClassesToTest(ImmutableList.of(Foo.class))).isEmpty();
    assertThat(findClassesToTest(ImmutableList.of(PublicFoo.class))).contains(PublicFoo.class);
  }