def test_px_to_em_invalid_input(self):
# Expect the value to pass through unchanged.
invalid_inputs = ['1 2', '5 6 5 6', 'cat', '11px', ' 234.8', 'n2_4p', '25deg', '16kHz', ]
for invalid in invalid_inputs:
expected = invalid
actual = settings.px_to_em(pixels=invalid)
self.assertEqual(actual, expected, msg=invalid)
def test_px_to_em_int_input(self):
base = 16
for pixels in range(-1000, 1001):
expected = round(pixels / base, 4)
expected = str(expected) + 'em'
actual = settings.px_to_em(pixels=pixels)
self.assertEqual(actual, str(expected), msg=pixels)
def test_px_to_em_change_base(self):
base = 16
for pixels in range(-1000, 1001):
expected = round(pixels / base, 4)
expected = str(expected) + 'em'
actual = settings.px_to_em(pixels=pixels)
self.assertEqual(actual, expected, msg=str(actual) + ' vs ' + str(expected))
def test_px_to_em_float_input(self):
base = 16
# Thank you: http://stackoverflow.com/questions/477486/python-decimal-range-step-value#answer-477506
for pixels in range(-11, 11, 1):
pixels /= 10.0
expected = round(float(pixels) / float(base), 4)
expected = str(expected) + 'em'
actual = settings.px_to_em(pixels=pixels)
self.assertEqual(actual, str(expected), msg=str(pixels) + ': ' + str(actual) + ' vs ' + str(expected))