def check_graph(G, is_planar=None):
"""Raises an exception if the lr_planarity check returns a wrong result
Parameters
----------
G : NetworkX graph
is_planar : bool
The expected result of the planarity check.
If set to None only counter example or embedding are verified.
"""
# obtain results of planarity check
is_planar_lr, result = nx.check_planarity(G, True)
is_planar_lr_rec, result_rec = check_planarity_recursive(G, True)
if is_planar is not None:
# set a message for the assert
if is_planar:
msg = "Wrong planarity check result. Should be planar."
else:
msg = "Wrong planarity check result. Should be non-planar."
# check if the result is as expected
assert is_planar == is_planar_lr, msg
assert is_planar == is_planar_lr_rec, msg
if is_planar_lr:
# check embedding
check_embedding(G, result)
check_embedding(G, result_rec)
else:
# check counter example
check_counterexample(G, result)
check_counterexample(G, result_rec)
def check_graph(G, is_planar=None):
"""Raises an exception if the lr_planarity check returns a wrong result
Parameters
----------
G : NetworkX graph
is_planar : bool
The expected result of the planarity check.
If set to None only counter example or embedding are verified.
"""
# obtain results of planarity check
is_planar_lr, result = nx.check_planarity(G, True)
is_planar_lr_rec, result_rec = check_planarity_recursive(G, True)
if is_planar is not None:
# set a message for the assert
if is_planar:
msg = "Wrong planarity check result. Should be planar."
else:
msg = "Wrong planarity check result. Should be non-planar."
# check if the result is as expected
assert_equals(is_planar, is_planar_lr, msg)
assert_equals(is_planar, is_planar_lr_rec, msg)
if is_planar_lr:
# check embedding
check_embedding(G, result)
check_embedding(G, result_rec)
else:
# check counter example
check_counterexample(G, result)
check_counterexample(G, result_rec)