class TestFibonacciGenerator(unittest.TestCase):
def setUp(self):
self.fg = FibonacciGenerator()
def testFirstFibonacciNumberShouldBeZero(self):
self.assertFibonacciNumberAtPosition(0, 0)
def testSecondFibonacciNumberShouldBeOne(self):
self.assertFibonacciNumberAtPosition(1, 1)
def testThirdFibonacciNumberShouldBeOne(self):
self.assertFibonacciNumberAtPosition(1, 2)
def testFourthFibonacciNumberShouldBeTwo(self):
self.assertFibonacciNumberAtPosition(2, 3)
def testSixthFibonacciNumberShouldBeFour(self):
self.assertFibonacciNumberAtPosition(5, 5)
def testWhenSequenceOfSevenFibonacciNumbersRequestedShouldRaiseValueError(self):
self.assertRaises(ValueError, self.fg.getFibonacciSequence, 7)
def testWhenSequenceOfTwentyOneFibonacciNumbersRequestedShouldRaiseValueError(self):
self.assertRaises(ValueError, self.fg.getFibonacciSequence, 21)
def testWhenSequenceOfEightFibonacciNumbersRequestedShouldGetFirstEightNumbersInSequence(self):
self.assertEquals([0,1,1,2,3,5,8,13], self.fg.getFibonacciSequence(8))
def testWhenSequenceOfNineFibonacciNumbersRequestedShouldGetFirstNineNumbersInSequence(self):
self.assertEquals([0,1,1,2,3,5,8,13,21], self.fg.getFibonacciSequence(9))
#using assert using exected, actual style
def assertFibonacciNumberAtPosition(self, expectedNumber, position):
self.assertEquals(expectedNumber, FibonacciGenerator().getFibonacciNumberAtPosition(position))
def tearDown(self):
del self.fg
def setUp(self):
self.fg = FibonacciGenerator()
def assertFibonacciNumberAtPosition(self, expectedNumber, position):
self.assertEquals(expectedNumber, FibonacciGenerator().getFibonacciNumberAtPosition(position))