def test_length():
b = Buffer(name)
b.append_item(name)
assert b.length() == 1
for x in range(10):
b.append_item(name)
assert b.length() == x + 2
def test_remove_item():
b = Buffer(name)
b.append_item(name)
assert len(b.items) == 1
assert b.items[0] == name
b.remove_item(name)
assert b.items == []
def test_append_item():
b = Buffer(name)
assert len(b.items) == 0
b.append_item(name)
assert b.items[-1] is name
assert len(b.items) == 1
other = name * 2
b.append_item(other)
assert b.items[-1] is other
assert len(b.items) == 2
def test_get_items():
"""Test all the get_*_items functions."""
b = Buffer(name)
b.append_item(name)
assert b.get_current_item() is name
for x in range(10):
b.append_item(x)
for x in range(10):
assert b.get_next_item() is x
assert b.get_first_item() is name
assert b.get_last_item() is 9
with raises(RuntimeError):
b.get_next_item(wrap=False)
assert b.get_next_item() is name
with raises(RuntimeError):
b.get_previous_item(wrap=False)
assert b.get_previous_item() is 9
def test_clear_items():
b = Buffer(name)
for x in range(10):
b.append_item(x)
b.clear_items()
assert b.items == []
def test_insert_item():
b = Buffer(name)
b.append_item(name)
other = name * 2
b.insert_item(0, other)
assert b.items[0] == other
