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"""
lesscpy expression tests.
"""
import unittest
from lesscpy.plib.expression import Expression
class TestExpression(unittest.TestCase):
def test_basic(self):
for test in [
['0', '+', '0', '0'],
['2', '+', '2', '4'],
['2.0', '+', '2', '4'],
['2', '+', '2.0', '4'],
['2.0', '+', '2.0', '4'],
[('2.0',), '+', '2.0', '4'],
[('2.0',), '+', ('2.0',), '4'],
['0px', '+', '0', '0'],
['2px', '+', '2', '4px'],
['2.0px', '+', '2', '4px'],
[('2px', ' '), '+', '2.0', '4px'],
['2.0px', '+', '2.0', '4px'],
]:
e = Expression(test[:3])
self.assertEqual(test[3], e.parse(None), str(test))
def test_neg(self):
for test in [
['-0', '+', '0', '0'],
['-2', '+', '-2', '-4'],
['-2.0', '+', '-2', '-4'],
['-2', '+', '-2.0', '-4'],
['-2.0', '+', '-2.0', '-4'],
['-0', '-', '0', '0'],
['-2', '-', '-2', '0'],
['-2.0', '-', '2', '-4'],
['-2', '-', '-2.0', '0'],
['2.0', '-', '-2.0', '4'],
['-0px', '+', '0', '0'],
['-2px', '+', '-2', '-4px'],
['-2.0', '+', '-2px', '-4px'],
['-2em', '+', '-2.0', '-4em'],
['-2.0s', '+', '-2.0s', '-4s'],
]:
e = Expression(test[:3])
self.assertEqual(test[3], e.parse(None), str(test))
def test_op(self):
for test in [
['0', '=', '0', True],
['1', '>', '2', False],
['1', '<', '2', True],
['1', '>=', '2', False],
['1', '=<', '2', True],
]:
e = Expression(test[:3])
self.assertEqual(test[3], e.parse(None), test)
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