def test_backend_returns_what_you_put_in(xs):
backend = SQLiteBackend(u':memory:')
mapping = {}
for key, value in xs:
mapping.setdefault(key, set()).add(value)
backend.save(key, value)
for key, values in mapping.items():
backend_contents = list(backend.fetch(key))
distinct_backend_contents = set(backend_contents)
assert len(backend_contents) == len(distinct_backend_contents)
assert distinct_backend_contents == set(values)
def test_backend_returns_what_you_put_in(xs):
backend = SQLiteBackend(':memory:')
mapping = {}
for key, value in xs:
mapping.setdefault(key, set()).add(value)
backend.save(key, value)
for key, values in mapping.items():
backend_contents = list(backend.fetch(key))
distinct_backend_contents = set(backend_contents)
assert len(backend_contents) == len(distinct_backend_contents)
assert distinct_backend_contents == set(values)
def test_does_not_commit_in_error_state():
backend = SQLiteBackend(u':memory:')
backend.create_db_if_needed()
try:
with backend.cursor() as cursor:
cursor.execute("""
insert into hypothesis_data_mapping(key, value)
values("a", "b")
""")
raise ValueError()
except ValueError:
pass
assert backend.fetch(u'a') == []
def test_does_not_commit_in_error_state():
backend = SQLiteBackend(':memory:')
backend.create_db_if_needed()
try:
with backend.cursor() as cursor:
cursor.execute("""
insert into hypothesis_data_mapping(key, value)
values("a", "b")
""")
raise ValueError()
except ValueError:
pass
assert backend.fetch('a') == []
def test_can_delete_keys():
backend = SQLiteBackend(u':memory:')
backend.save(u'foo', u'bar')
backend.save(u'foo', u'baz')
backend.delete(u'foo', u'bar')
assert list(backend.fetch(u'foo')) == [u'baz']
def test_can_delete_keys():
backend = SQLiteBackend(':memory:')
backend.save('foo', 'bar')
backend.save('foo', 'baz')
backend.delete('foo', 'bar')
assert list(backend.fetch('foo')) == ['baz']