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Add deterministic test cases for _undo_write. 

Add deterministic inputs to test_putall_same_as_put_for_each_item via
@hypothesis.example(...) to ensure deterministic coverage of branches
in BidictBase._undo_write. Hypothesis doesn't always generate examples
that hit all the branches otherwise.
This commit is contained in:
jab 2019-11-04 02:05:42 +00:00
parent 281e6e5a5a
commit d925bd1c52
1 changed files with 7 additions and 2 deletions
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9
tests/properties/test_properties.py
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@ -17,9 +17,9 @@ from itertools import tee
from weakref import ref from weakref import ref
import pytest import pytest
from hypothesis import given from hypothesis import example, given
from bidict import BidictException, OrderedBidictBase, namedbidict, inverted from bidict import BidictException, OrderedBidictBase, OVERWRITE, bidict, namedbidict, inverted
from bidict.compat import ( from bidict.compat import (
PY2, PYPY, collections_abc as c, iteritems, izip, viewkeys, viewitems, PY2, PYPY, collections_abc as c, iteritems, izip, viewkeys, viewitems,
) )
@ -155,6 +155,11 @@ def test_consistency_after_method_call(bi_and_cmp_dict, args_by_method):
@given(st.MUTABLE_BIDICTS, st.L_PAIRS, st.DUP_POLICIES_DICT) @given(st.MUTABLE_BIDICTS, st.L_PAIRS, st.DUP_POLICIES_DICT)
# These test cases ensure coverage of all branches in BidictBase._undo_write
# (Hypothesis doesn't always generate examples that hit all the branches otherwise).
@example(bidict({1: 1, 2: 2}), [(1, 3), (1, 2)], {'on_dup_key': OVERWRITE})
@example(bidict({1: 1, 2: 2}), [(3, 1), (2, 4)], {'on_dup_val': OVERWRITE})
@example(bidict({1: 1, 2: 2}), [(1, 2), (1, 1)], {'on_dup_kv': OVERWRITE})
def test_putall_same_as_put_for_each_item(bi, items, dup_policies): def test_putall_same_as_put_for_each_item(bi, items, dup_policies):
"""*bi.putall(items) <==> for i in items: bi.put(i)* for all duplication policies.""" """*bi.putall(items) <==> for i in items: bi.put(i)* for all duplication policies."""
check = bi.copy() check = bi.copy()