def testCumMin(self): v = numpy.array([5, 6, 4, 5, 1]) u = Util.cumMin(v) nptst.assert_array_equal(u, numpy.array([5, 5, 4, 4, 1])) v = numpy.array([5, 4, 3, 2, 1]) u = Util.cumMin(v) nptst.assert_array_equal(u, v) v = numpy.array([1, 2, 3]) u = Util.cumMin(v) nptst.assert_array_equal(u, numpy.ones(3))