def test_decrement_right(self):
ranges = [(1, 5)]
remove_from_ranges(ranges, 5)
self.assertEqual(ranges, [(1, 4)])
def test_dont_removing_unmatched_range(self):
ranges = [(1, 3), (5, 7)]
remove_from_ranges(ranges, 4)
self.assertEqual(ranges, [(1, 3), (5, 7)])
def test_split_range_into_ranges(self):
ranges = [(1, 7)]
remove_from_ranges(ranges, 4)
self.assertEqual(ranges, [(1, 3), (5, 7)])
def test_decrement_left(self):
ranges = [(1, 5)]
remove_from_ranges(ranges, 1)
self.assertEqual(ranges, [(2, 5)])
def test_remove_unexistent(self):
ranges = [1, 3]
remove_from_ranges(ranges, 2)
self.assertEqual(ranges, [1, 3])
def test_split_range(self):
ranges = [(1, 5)]
remove_from_ranges(ranges, 3)
self.assertEqual(ranges, [1, 2, 4, 5])
def test_remove_inside(self):
ranges = [1, 2, 3]
remove_from_ranges(ranges, 2)
self.assertEqual(ranges, [1, 3])
def test_remove_after(self):
ranges = [1, 2]
remove_from_ranges(ranges, 2)
self.assertEqual(ranges, [1])
def test_remove_before(self):
ranges = [1, 2]
remove_from_ranges(ranges, 1)
self.assertEqual(ranges, [2])
def test_single(self):
ranges = [1]
remove_from_ranges(ranges, 1)
self.assertEqual(ranges, [])
def test_empty(self):
ranges = []
remove_from_ranges(ranges, 1)
self.assertEqual(ranges, [])