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def test_bijectivity(bi_cls, init_items):
"""b[k] == v <==> b.inv[v] == k"""
some_bidict = bi_cls(init_items)
ordered = isinstance(some_bidict, OrderedBidictBase)
collection = list if ordered else set
keys = collection(iterkeys(some_bidict))
vals = collection(itervalues(some_bidict))
fwd_by_keys = collection(some_bidict[k] for k in iterkeys(some_bidict))
inv_by_vals = collection(some_bidict.inv[v] for v in itervalues(some_bidict))
assert keys == inv_by_vals
assert vals == fwd_by_keys
inv = some_bidict.inv
inv_keys = collection(iterkeys(inv))
inv_vals = collection(itervalues(inv))
inv_fwd_by_keys = collection(inv[k] for k in iterkeys(inv))
inv_inv_by_vals = collection(inv.inv[v] for v in itervalues(inv))
assert inv_keys == inv_inv_by_vals
assert inv_vals == inv_fwd_by_keys
def test_bijectivity(bi_cls, init_items):
"""b[k] == v <==> b.inv[v] == k"""
some_bidict = bi_cls(init_items)
ordered = isinstance(some_bidict, OrderedBidictBase)
collection = list if ordered else set
keys = collection(iterkeys(some_bidict))
vals = collection(itervalues(some_bidict))
fwd_by_keys = collection(some_bidict[k] for k in iterkeys(some_bidict))
inv_by_vals = collection(some_bidict.inv[v] for v in itervalues(some_bidict))
assert keys == inv_by_vals
assert vals == fwd_by_keys
inv = some_bidict.inv
inv_keys = collection(iterkeys(inv))
inv_vals = collection(itervalues(inv))
inv_fwd_by_keys = collection(inv[k] for k in iterkeys(inv))
inv_inv_by_vals = collection(inv.inv[v] for v in itervalues(inv))
assert inv_keys == inv_inv_by_vals
assert inv_vals == inv_fwd_by_keys
def test_bijectivity(bi_cls, init_items):
"""b[k] == v <==> b.inv[v] == k"""
some_bidict = bi_cls(init_items)
ordered = isinstance(some_bidict, OrderedBidictBase)
collection = list if ordered else set
keys = collection(iterkeys(some_bidict))
vals = collection(itervalues(some_bidict))
fwd_by_keys = collection(some_bidict[k] for k in iterkeys(some_bidict))
inv_by_vals = collection(some_bidict.inv[v] for v in itervalues(some_bidict))
assert keys == inv_by_vals
assert vals == fwd_by_keys
inv = some_bidict.inv
inv_keys = collection(iterkeys(inv))
inv_vals = collection(itervalues(inv))
inv_fwd_by_keys = collection(inv[k] for k in iterkeys(inv))
inv_inv_by_vals = collection(inv.inv[v] for v in itervalues(inv))
assert inv_keys == inv_inv_by_vals
assert inv_vals == inv_fwd_by_keys
def test_orderedbidict_reversed(ob_cls, init_items):
""":meth:`bidict.OrderedBidictBase.__reversed__` should yield all the keys
in an ordered bidict in the reverse-order they were inserted.
"""
some_bidict = ob_cls(init_items)
key_seqs = (some_bidict, list(iterkeys(some_bidict)), [KEY(pair) for pair in init_items])
key_seqs_rev = (reversed(i) for i in key_seqs)
assert all(i == j == k for (i, j, k) in izip(*key_seqs_rev))
def test_bidict_iter(bi_cls, init_items):
""":meth:`bidict.BidictBase.__iter__` should yield all the keys in a bidict."""
some_bidict = bi_cls(init_items)
assert set(some_bidict) == set(iterkeys(some_bidict)) == set(KEY(pair) for pair in init_items)
def test_orderedbidict_iter(ob_cls, init_items):
""":meth:`bidict.OrderedBidictBase.__iter__` should yield all the keys
in an ordered bidict in the order they were inserted.
"""
some_bidict = ob_cls(init_items)
key_iters = (some_bidict, iterkeys(some_bidict), (KEY(pair) for pair in init_items))
assert all(i == j == k for (i, j, k) in izip(*key_iters))
def test_bijectivity(bi_cls, init_items):
"""b[k] == v <==> b.inv[v] == k"""
some_bidict = bi_cls(init_items)
ordered = isinstance(some_bidict, OrderedBidictBase)
collection = list if ordered else set
keys = collection(iterkeys(some_bidict))
vals = collection(itervalues(some_bidict))
fwd_by_keys = collection(some_bidict[k] for k in iterkeys(some_bidict))
inv_by_vals = collection(some_bidict.inv[v] for v in itervalues(some_bidict))
assert keys == inv_by_vals
assert vals == fwd_by_keys
inv = some_bidict.inv
inv_keys = collection(iterkeys(inv))
inv_vals = collection(itervalues(inv))
inv_fwd_by_keys = collection(inv[k] for k in iterkeys(inv))
inv_inv_by_vals = collection(inv.inv[v] for v in itervalues(inv))
assert inv_keys == inv_inv_by_vals
assert inv_vals == inv_fwd_by_keys