def test_buffer_split_range_anchor_bottom(self):
buf = Buffer(None)
values = range(1, 101) # 1 2 3 .. 99 100
# positive lineno
expected = (1, )
actual = buf._split_range(values, 1, 1, 'bottom')
self.assertSequenceEqual(expected, actual)
expected = (3, 4, 5)
actual = buf._split_range(values, 3, 5, 'bottom')
self.assertSequenceEqual(expected, actual)
expected = (16, 17, 18, 19, 20)
actual = buf._split_range(values, 5, 20, 'bottom')
self.assertSequenceEqual(expected, actual)
expected = (1, 2, 3)
actual = buf._split_range(values, 5, 3, 'bottom')
self.assertSequenceEqual(expected, actual)
# negative lineno
expected = (100, )
actual = buf._split_range(values, 1, -1, 'bottom')
self.assertSequenceEqual(expected, actual)
expected = (98, 99, 100)
actual = buf._split_range(values, 3, -1, 'bottom')
self.assertSequenceEqual(expected, actual)
expected = (79, 80, 81)
actual = buf._split_range(values, 3, -20, 'bottom')
self.assertSequenceEqual(expected, actual)
def test_buffer_split_range_anchor_middle(self):
buf = Buffer(None)
values = range(1, 101) # 1 2 3 .. 99 100
# positive lineno
expected = (1, )
actual = buf._split_range(values, 1, 1, 'middle')
self.assertSequenceEqual(expected, actual)
expected = (10, )
actual = buf._split_range(values, 1, 10, 'middle')
self.assertSequenceEqual(expected, actual)
expected = (10, 11)
actual = buf._split_range(values, 2, 10, 'middle')
self.assertSequenceEqual(expected, actual)
expected = (9, 10, 11)
actual = buf._split_range(values, 3, 10, 'middle')
self.assertSequenceEqual(expected, actual)
expected = (9, 10, 11, 12)
actual = buf._split_range(values, 4, 10, 'middle')
self.assertSequenceEqual(expected, actual)
expected = (8, 9, 10, 11, 12)
actual = buf._split_range(values, 5, 10, 'middle')
self.assertSequenceEqual(expected, actual)
# negative lineno
expected = (89, 90, 91, 92, 93)
actual = buf._split_range(values, 5, -10, 'middle')
self.assertSequenceEqual(expected, actual)
def test_buffer_split_range_anchor_top(self):
buf = Buffer(None)
values = range(1, 101) # 1 2 3 .. 99 100
# positive lineno
expected = (1, )
actual = buf._split_range(values, 1, 1, 'top')
self.assertSequenceEqual(expected, actual)
expected = (1, 2, 3)
actual = buf._split_range(values, 3, 1, 'top')
self.assertSequenceEqual(expected, actual)
expected = (10, 11, 12)
actual = buf._split_range(values, 3, 10, 'top')
self.assertSequenceEqual(expected, actual)
expected = (98, 99, 100)
actual = buf._split_range(values, 3, 98, 'top')
self.assertSequenceEqual(expected, actual)
expected = (98, 99, 100)
actual = buf._split_range(values, 300, 98, 'top')
self.assertSequenceEqual(expected, actual)
# negative lineno
expected = (100, )
actual = buf._split_range(values, 1, -1, 'top')
self.assertSequenceEqual(expected, actual)
expected = (100, )
actual = buf._split_range(values, 3, -1, 'top')
self.assertSequenceEqual(expected, actual)
expected = (98, 99, 100)
actual = buf._split_range(values, 3, -3, 'top')
self.assertSequenceEqual(expected, actual)
expected = (91, 92, 93)
actual = buf._split_range(values, 3, -10, 'top')
self.assertSequenceEqual(expected, actual)
