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from __future__ import (absolute_import, division, print_function,
unicode_literals)
import itertools
from weakref import ref
from matplotlib.externals import six
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@@ -376,3 +378,40 @@ def test_step_fails():
np.arange(12))
assert_raises(ValueError, cbook._step_validation,
np.arange(12), np.arange(3))
def test_grouper():
class dummy():
pass
a, b, c, d, e = objs = [dummy() for j in range(5)]
g = cbook.Grouper()
g.join(*objs)
assert set(list(g)[0]) == set(objs)
assert set(g.get_siblings(a)) == set(objs)
for other in objs[1:]:
assert g.joined(a, other)
g.remove(a)
for other in objs[1:]:
assert not g.joined(a, other)
for A, B in itertools.product(objs[1:], objs[1:]):
assert g.joined(A, B)
def test_grouper_private():
class dummy():
pass
objs = [dummy() for j in range(5)]
g = cbook.Grouper()
g.join(*objs)
# reach in and touch the internals !
mapping = g._mapping
for o in objs:
assert ref(o) in mapping
base_set = mapping[ref(objs[0])]
for o in objs[1:]:
assert mapping[ref(o)] is base_set
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Fix twin remove #5682
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Fix twin remove #5682
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