Example #1
0
    def test_critical_values(self):
        crit_val = c.w_critical_value(self.n, self.alpha, self.alternative)
        crit_val2 = c.w_critical_value(str(self.n), str(self.alpha),
                                       self.alternative)

        assert crit_val == 25
        assert crit_val2 == 25
Example #2
0
 def test_exceptions(self):
     with pytest.raises(ValueError):
         c.w_critical_value(31, 0.05, 'two-tail')
     with pytest.raises(ValueError):
         c.w_critical_value(20, 0.02, 'two-tail')
     with pytest.raises(ValueError):
         c.w_critical_value(25, 0.05, 'three-tail')
def test_w_critical_value():
    n, alpha, alternative = 15, 0.05, 'two-tail'

    crit_val = c.w_critical_value(n, alpha, alternative)
    crit_val2 = c.w_critical_value(str(n), str(alpha), alternative)

    assert crit_val == 25
    assert crit_val2 == 25

    with pytest.raises(ValueError):
        c.w_critical_value(31, 0.05, 'two-tail')
    with pytest.raises(ValueError):
        c.w_critical_value(20, 0.02, 'two-tail')
    with pytest.raises(ValueError):
        c.w_critical_value(25, 0.05, 'three-tail')