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import pytest
import os
dbm = pytest.importorskip('dbm')
def test_get(tmpdir):
path = str(tmpdir.join('test_dbm_extra.test_get'))
d = dbm.open(path, 'c')
x = d.get("42")
assert x is None
d.close()
def test_delitem(tmpdir):
path = str(tmpdir.join('test_dbm_extra.test_delitem'))
d = dbm.open(path, 'c')
with pytest.raises(KeyError):
del d['xyz']
def test_nonstring(tmpdir):
path = str(tmpdir.join('test_dbm_extra.test_nonstring'))
d = dbm.open(path, 'c')
with pytest.raises(TypeError):
d[123] = 'xyz'
with pytest.raises(TypeError):
d['xyz'] = 123
with pytest.raises(TypeError):
d['xyz'] = None
with pytest.raises(TypeError):
del d[123]
with pytest.raises(TypeError):
d[123]
with pytest.raises(TypeError):
123 in d
with pytest.raises(TypeError):
d.has_key(123)
with pytest.raises(TypeError):
d.setdefault(123, 'xyz')
with pytest.raises(TypeError):
d.setdefault('xyz', 123)
with pytest.raises(TypeError):
d.get(123)
assert dict(d) == {}
d.setdefault('xyz', '123')
assert dict(d) == {'xyz': '123'}
d.close()
def test_multiple_sets(tmpdir):
path = str(tmpdir.join('test_dbm_extra.test_multiple_sets'))
d = dbm.open(path, 'c')
d['xyz'] = '12'
d['xyz'] = '3'
d['xyz'] = '546'
assert dict(d) == {'xyz': '546'}
assert d['xyz'] == '546'
@pytest.mark.skipif("'__pypy__' not in sys.modules")
def test_extra():
with pytest.raises(TypeError):
dbm.datum(123)
with pytest.raises(TypeError):
dbm.datum(False)
def test_null():
db = dbm.open('test', 'c')
db['1'] = 'a\x00b'
db.close()
db = dbm.open('test', 'r')
assert db['1'] == 'a\x00b'
db.close()
def test_key_with_empty_value(tmpdir):
# this test fails on CPython too (at least on tannit), and the
# case shows up when gdbm is not installed and test_anydbm.py
# falls back dbm.
pytest.skip("test may fail on CPython too")
path = str(tmpdir.join('test_dbm_extra.test_key_with_empty_value'))
d = dbm.open(path, 'c')
assert 'key_with_empty_value' not in d
d['key_with_empty_value'] = ''
assert 'key_with_empty_value' in d
assert d['key_with_empty_value'] == ''
d.close()
def test_unicode_filename(tmpdir):
path = str(tmpdir) + os.sep + u'test_dbm_extra.test_unicode_filename'
d = dbm.open(path, 'c')
d.close()
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