def test_mergeComps_K5_D3_withELBO_back2back(self, K=5, D=3):
    SS = self.makeSuffStatBagAndFillWithOnes(K, D)
    self.addELBOtoSuffStatBag(SS, K)
    SS.mergeComps(3, 4)
    SS.mergeComps(0, 1)
    
    assert SS.K == K - 2
    assert SS._ELBOTerms.K == K - 2
    assert SS._MergeTerms.K == 2 - K
dataset/ETHPy150Open daeilkim/refinery/refinery/bnpy/bnpy-dev/tests/suffstats/TestSuffStatBag.py/TestSuffStatBag.test_mergeComps_K5_D3_withELBO_back2back/swapped operands of `-`