def test_invalid_layouts():
fig, ax = plt.subplots(constrained_layout=True)
with pytest.warns(UserWarning):
# this should warn,
fig.subplots_adjust(top=0.8)
assert not (fig.get_constrained_layout())
# Using layout + (tight|constrained)_layout warns, but the former takes
# precedence.
with pytest.warns(UserWarning,
match="Figure parameters 'layout' and "
"'tight_layout' cannot"):
fig = Figure(layout='tight', tight_layout=False)
assert fig.get_tight_layout()
assert not fig.get_constrained_layout()
with pytest.warns(UserWarning,
match="Figure parameters 'layout' and "
"'constrained_layout' cannot"):
fig = Figure(layout='constrained', constrained_layout=False)
assert not fig.get_tight_layout()
assert fig.get_constrained_layout()
with pytest.raises(ValueError,
match="'foobar' is not a valid value for layout"):
Figure(layout='foobar')
def test_valid_layouts():
fig = Figure(layout=None)
assert not fig.get_tight_layout()
assert not fig.get_constrained_layout()
fig = Figure(layout='tight')
assert fig.get_tight_layout()
assert not fig.get_constrained_layout()
fig = Figure(layout='constrained')
assert not fig.get_tight_layout()
assert fig.get_constrained_layout()
