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import unittest

from webkitpy.tool import grammar


class GrammarTest(unittest.TestCase):

    def test_join_with_separators_zero(self):
        self.assertEqual(
            '',
            grammar.join_with_separators([]))

    def test_join_with_separators_one(self):
        self.assertEqual(
            'one',
            grammar.join_with_separators(['one']))

    def test_join_with_separators_two(self):
        self.assertEqual(
            'one and two',
            grammar.join_with_separators(['one', 'two']))

    def test_join_with_separators_three(self):
        self.assertEqual(
            'one, two, and three',
            grammar.join_with_separators(['one', 'two', 'three']))

    def test_pluralize_zero(self):
        self.assertEqual('0 tests', grammar.pluralize('test', 0))

    def test_pluralize_one(self):
        self.assertEqual('1 test', grammar.pluralize('test', 1))

    def test_pluralize_two(self):
        self.assertEqual('2 tests', grammar.pluralize('test', 2))

    def test_pluralize_two_ends_with_sh(self):
        self.assertEqual('2 crashes', grammar.pluralize('crash', 2))