def verify_result(sut, f, width, height, values):
f.seek(0)
actual = Layout.load_from_file(f)
# Verify the state of the object under test
assert sut.width == width
assert sut.height == height
assert sut.values == values
# Also verify the backing file to ensure coherence
assert actual.width == width
assert actual.height == height
assert actual.values == values
def test_create_from_file_wide():
s = '2|1\n---|RED'
f = create_pseudo_file(s)
sut = Layout.load_from_file(f)
verify_result(sut, f, 2, 1, [[None, 'RED']])
def test_create_from_file_tall():
s = '1|2\n---\nRED'
f = create_pseudo_file(s)
sut = Layout.load_from_file(f)
verify_result(sut, f, 1, 2, [[None], ['RED']])
def test_create_from_file_not_none():
s = '1|1\nRED'
f = create_pseudo_file(s)
sut = Layout.load_from_file(f)
verify_result(sut, f, 1, 1, [['RED']])