class TestArrayUtilities(unittest.TestCase):

    token = 'a'

    def setUp(self):
        self.arrayUtilities = ArrayUtilities()

    def testItReturnsZero(self):
        number = self.arrayUtilities.getNumberOfOcurrences(self.token, [])
        self.assertEquals(0, number)

    def testItReturnsTwo(self):
        number = self.arrayUtilities.getNumberOfOcurrences(self.token, ['a', 'b', 'a'])
        self.assertEquals(2, number)