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import unittest

from webkitpy.tool.grammar import join_with_separators
from webkitpy.tool.grammar import plural
from webkitpy.tool.grammar import pluralize


class GrammarTest(unittest.TestCase):

    def test_join_with_separators(self):
        self.assertEqual(join_with_separators(["one"]), "one")
        self.assertEqual(join_with_separators(["one", "two"]), "one and two")
        self.assertEqual(join_with_separators(["one", "two", "three"]), "one, two, and three")

    def test_plural(self):
        self.assertEqual(plural("patch"), "patches")
        self.assertEqual(plural("test"), "tests")

    def test_pluralize(self):
        self.assertEqual(pluralize(1, "patch"), "1 patch")
        self.assertEqual(pluralize(2, "patch"), "2 patches")
        self.assertEqual(pluralize(1, "patch", True), "1 patch")
        self.assertEqual(pluralize(2, "patch", True), "2 patches")
        self.assertEqual(pluralize(1, "patch", False), "patch")
        self.assertEqual(pluralize(2, "patch", False), "patches")