def test_blank_between_second_argument_None_blanks_to_end():
rl = RunLengthList([(0, "foo"), (2, "bar"), (4, "baz")])
rl.blank_between(1, None)
assert rl.items() == [(0, "foo")]
def test_change_between_changes_to_end_if_second_argument_None():
rl = RunLengthList([(0, "foo"), (2, "bar"), (4, "baz")])
rl.change_between(1, None, "qux")
assert rl.items() == [(0, "foo"), (1, "qux")]
def test_RunLengthList_copy_copies_non_empty():
r = RunLengthList([(0, "foo")])
assert r == r.copy()
assert not r.items() is r.copy().items()
def test_add_change_works_on_top_of_existing_colour_definition():
rl = RunLengthList([(0, "foo"), (2, +20)])
rl.add_change(2, -20) # deliberately try and get it to the left
assert rl.items() == [(0, "foo"), (2, -20)]
def test_RunLengthList_insertion_normalisation():
r1 = RunLengthList([(0, "foo"), (1, "bar")])
r2 = RunLengthList([(0, "foo"), (1, "bar")])
r1.insert_list_at(1, 2, r2)
assert r1.items() == [(0, "foo"), (2, "bar")], r1.items()
def test_inserted_list_gets_chopped_if_not_enough_length():
r1 = RunLengthList([(0, "foo"), (1, "bar")])
r2 = RunLengthList([(0, "baz"), (2, "qux")])
r1.insert_list_at(1, 1, r2)
assert r1.items() == [(0, "foo"), (1, "baz"), (2, "bar")]
def test_copy_returns_different_lists():
r = RunLengthList([(0, "foo")])
assert r.items() is not r.copy().items()
def test_RunLengthList_insertion():
r1 = RunLengthList([(0, "foo"), (2, "qux")])
r2 = RunLengthList([(0, "bar"), (2, "baz")])
r1.insert_list_at(1, 3, r2)
assert r1.items() == [(0, "foo"), (1, "bar"), (3, "baz"), (4, "foo"), (5, "qux")], r1.items()
def test_RunLengthList_blank_between():
c = RunLengthList([(0, "FOO"), (2, "BAR"), (3, "BAZ"), (4, "QUX")])
c.blank_between(2, 3)
assert c.items() == [(0, "FOO"), (3, "BAZ"), (4, "QUX")], c.items()
def test_RunLengthList_add_change_normalises_afterwards():
r = RunLengthList([(0, "foo")])
r.add_change(2, "foo")
r.add_change(1, "bar")
assert r.items() == [(0, "foo"), (1, "bar")]
def test_RunlengthList_index_adjust_negative_adjustment_normalises():
c = RunLengthList([(0, "f"), (2, "o"), (3, "b")])
c.index_adjust(1, -2)
assert c.items() == [(0, "f"), (1, "b")]
def test_RunLengthList_index_adjust_index_collision():
c = RunLengthList([(0, 1), (3, 2)])
c.index_adjust(3, 2)
assert c.items() == [(0, 1), (5, 2)], c.items()
def test_RunLengthList_index_adjust():
c = RunLengthList([(0, 1), (3, 2), (6, 3)])
c.index_adjust(2, 2)
assert c.items() == [(0, 1), (5, 2), (8, 3)], c.items()
def test_RunLengthList_add_change_already_got_index():
c = RunLengthList([(0, "foo"), (3, "bar")])
c.add_change(3, "baz")
assert c.items() == [(0, "foo"), (3, "baz")]
def test_RunLengthList_add_change():
c = RunLengthList([(0, 1), (3, 2)])
c.add_change(1, 3)
assert c.items() == [(0, 1), (1, 3), (3, 2)]
