public boolean isShallowClone() {
        return shallowClone;
    }
@Test
    void byDefaultShallowCloneShouldBeOff() {
        assertFalse(git("http://url", "foo").isShallowClone());
        assertFalse(git("http://url", "foo", false).isShallowClone());
        assertFalse(git("http://url", "foo", null).isShallowClone());
        assertTrue(git("http://url", "foo", true).isShallowClone());
    }