'Tests that a duplicated xblock is identical to the original,
except for location and display name.'

def test_duplicate_equality(self):

    self._duplicate_and_verify(self.problem_usage_key, self.vert_usage_key)
    self._duplicate_and_verify(self.html_usage_key, self.vert_usage_key)
    self._duplicate_and_verify(self.vert_usage_key, self.seq_usage_key)
    self._duplicate_and_verify(self.seq_usage_key, self.chapter_usage_key)
    self._duplicate_and_verify(self.chapter_usage_key, self.usage_key)
