"""
Unit test for Color parameters.
"""

import unittest
import param


class TestColorParameters(unittest.TestCase):

    def test_initialization_invalid_string(self):
        try:
            class Q(param.Parameterized):
                q = param.Color('red', allow_named=False)
        except ValueError:
            pass
        else:
            raise AssertionError("No exception raised on invalid color")

    def test_set_invalid_string(self):
        class Q(param.Parameterized):
            q = param.Color(allow_named=False)
        try:
            Q.q = 'red'
        except ValueError:
            pass
        else:
            raise AssertionError("No exception raised on invalid color")

    def test_set_invalid_named_color(self):
        class Q(param.Parameterized):
            q = param.Color(allow_named=True)
        try:
            Q.q = 'razzmatazz'
        except ValueError:
            pass
        else:
            raise AssertionError("No exception raised on invalid color")

    def test_invalid_long_hex(self):
        class Q(param.Parameterized):
            q = param.Color()
        try:
            Q.q = '#gfffff'
        except ValueError:
            pass
        else:
            raise AssertionError("No exception raised on invalid color")

    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')