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"""
Unit test for Color parameters.
"""
import re
import unittest
from .utils import check_defaults
import param
import pytest
class TestColorParameters(unittest.TestCase):
def _check_defaults(self, p):
assert p.default is None
assert p.allow_None is True
assert p.allow_named is True
def test_defaults_class(self):
class A(param.Parameterized):
c = param.Color()
check_defaults(A.param.c, label='C')
self._check_defaults(A.param.c)
def test_defaults_inst(self):
class A(param.Parameterized):
c = param.Color()
a = A()
check_defaults(a.param.c, label='C')
self._check_defaults(a.param.c)
def test_defaults_unbound(self):
c = param.Color()
check_defaults(c, label=None)
self._check_defaults(c)
def test_wrong_type(self):
with pytest.raises(
ValueError,
match=re.escape("Color parameter 'q' expects a string value, not an object of <class 'int'>.")
):
q = param.Color(1) # noqa
def test_initialization_invalid_string(self):
with pytest.raises(
ValueError,
match=re.escape("Color parameter 'q' only accepts valid RGB hex codes, received 'red'."),
):
class Q(param.Parameterized):
q = param.Color('red', allow_named=False)
def test_set_invalid_string(self):
class Q(param.Parameterized):
q = param.Color(allow_named=False)
with pytest.raises(
ValueError,
match=re.escape("Color parameter 'Q.q' only accepts valid RGB hex codes, received 'red'."),
):
Q.q = 'red'
def test_set_invalid_named_color(self):
class Q(param.Parameterized):
q = param.Color(allow_named=True)
with pytest.raises(
ValueError,
match=re.escape("Color parameter 'Q.q' only takes RGB hex codes or named colors, received 'razzmatazz'."),
):
Q.q = 'razzmatazz'
def test_invalid_long_hex(self):
class Q(param.Parameterized):
q = param.Color()
with pytest.raises(
ValueError,
match=re.escape("Color parameter 'Q.q' only takes RGB hex codes or named colors, received '#gfffff'.")
):
Q.q = '#gfffff'
def test_valid_long_hex(self):
class Q(param.Parameterized):
q = param.Color()
Q.q = '#ffffff'
self.assertEqual(Q.q, '#ffffff')
def test_valid_short_hex(self):
class Q(param.Parameterized):
q = param.Color()
Q.q = '#fff'
self.assertEqual(Q.q, '#fff')
def test_valid_named_color(self):
class Q(param.Parameterized):
q = param.Color(allow_named=True)
Q.q = 'indianred'
self.assertEqual(Q.q, 'indianred')
def test_valid_named_color_mixed_case(self):
class Q(param.Parameterized):
q = param.Color(allow_named=True)
Q.q = 'WhiteSmoke'
self.assertEqual(Q.q, 'WhiteSmoke')
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