def test_set_denominator_both_zero(self):
"""Test that setting the denominator works when the both values are
zero.
"""
conf = {}
comparison = Comparison('unittest', conf)
a_data = 0.0
b_data = 0.0
denominator = comparison._set_denominator(a_data, b_data)
self.assertEqual(1.0, denominator)
def test_set_denominator_neither_zero(self):
"""Test that setting the denominator returns the first value when
the both values are non-zero.
"""
conf = {}
comparison = Comparison('unittest', conf)
a_data = 1.0e-1
b_data = 2.0e-12
denominator = comparison._set_denominator(a_data, b_data)
self.assertEqual(a_data, denominator)
def test_set_denominator_second_zero(self):
"""Test that setting the denominator works when the second value is
zero.
"""
conf = {}
comparison = Comparison('unittest', conf)
a_data = 1.00001e-16
b_data = 0.0
denominator = comparison._set_denominator(a_data, b_data)
self.assertEqual(a_data, denominator)