def test_single_speed_false(self):
'''
Test that identifies is not a single speed bike
'''
result = q.Bicycle([50, 34],
[11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28])
self.assertFalse(result.is_single_speed())
def test_gear_inches(self):
'''
Test calculating gear inches
'''
result = q.Bicycle([50, 34],
[11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28])
self.assertAlmostEqual(result.get_gear_inches(), 32.79, places=2)
def test_attributes(self):
'''
Test setting attributes
'''
result = q.Bicycle([50, 34],
[11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28])
self.assertListEqual(result.front_chainring_values, [34, 50])
def test_set_front_invalid(self):
'''
Test that front set with an invalid input raises error
'''
with self.assertRaises(ValueError):
result = q.Bicycle([50, 34],
[11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28])
result.set_front_chainring(4)
def test_set_front_valid(self):
'''
Test that front is set with a valid input
'''
result = q.Bicycle([50, 34],
[11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28])
result.set_front_chainring(2)
self.assertEqual(result.current_chainring, 2)
def test_set_rear_invalid(self):
'''
Test that rear set with an invalid input raises error
'''
with self.assertRaises(ValueError):
result = q.Bicycle([50, 34],
[11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28])
result.set_rear_cog(-1)
def test_set_rear_valid(self):
'''
Test that rear is set with a valid input
'''
result = q.Bicycle([50, 34],
[11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28])
result.set_rear_cog(4)
self.assertEqual(result.current_rear_cog, 4)
def test_single_speed_true(self):
'''
Test that identifies is a single speed bike
'''
result = q.Bicycle([50], [19])
self.assertTrue(result.is_single_speed())