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from collections.abc import MutableSequence, MutableMapping
from nose2.tools.such import helper
import dpath
from dpath import MergeType
class TestMapping(MutableMapping):
def __init__(self, data=None):
if data is None:
data = {}
self._mapping = {}
self._mapping.update(data)
def __len__(self):
return len(self._mapping)
def __iter__(self):
return iter(self._mapping)
def __contains__(self, key):
return key in self._mapping
def __getitem__(self, key):
return self._mapping[key]
def __setitem__(self, key, value):
self._mapping[key] = value
def __delitem__(self, key):
del self._mapping[key]
class TestSequence(MutableSequence):
def __init__(self, data=None):
if data is None:
data = list()
self._list = [] + data
def __len__(self):
return len(self._list)
def __getitem__(self, idx):
return self._list[idx]
def __delitem__(self, idx):
del self._list[idx]
def __setitem__(self, idx, value):
self._list[idx] = value
def __str__(self):
return str(self._list)
def __eq__(self, other):
return self._list == other._list
def __ne__(self, other):
return not self.__eq__(other)
def insert(self, idx, value):
self._list.insert(idx, value)
def append(self, value):
self.insert(len(self._list), value)
def test_types_set():
data = TestMapping({"a": TestSequence([0])})
dpath.set(data, '/a/0', 1)
assert data['a'][0] == 1
data['a'][0] = 0
dpath.set(data, ['a', '0'], 1)
assert data['a'][0] == 1
def test_types_get_list_of_dicts():
tdict = TestMapping({
"a": TestMapping({
"b": TestSequence([
{0: 0},
{0: 1},
{0: 2},
]),
}),
})
res = dpath.segments.view(tdict, ['a', 'b', 0, 0])
assert isinstance(res['a']['b'], TestSequence)
assert len(res['a']['b']) == 1
assert res['a']['b'][0][0] == 0
def test_types_merge_simple_list_replace():
src = TestMapping({
"list": TestSequence([7, 8, 9, 10])
})
dst = TestMapping({
"list": TestSequence([0, 1, 2, 3])
})
dpath.merge(dst, src, flags=MergeType.REPLACE)
assert dst["list"] == TestSequence([7, 8, 9, 10]), "%r != %r" % (dst["list"], TestSequence([7, 8, 9, 10]))
def test_types_get_absent():
ehash = TestMapping()
helper.assertRaises(KeyError, dpath.get, ehash, '/a/b/c/d/f')
helper.assertRaises(KeyError, dpath.get, ehash, ['a', 'b', 'c', 'd', 'f'])
def test_types_get_glob_multiple():
ehash = TestMapping({
"a": TestMapping({
"b": TestMapping({
"c": TestMapping({
"d": 0,
}),
"e": TestMapping({
"d": 0,
}),
}),
}),
})
helper.assertRaises(ValueError, dpath.get, ehash, '/a/b/*/d')
helper.assertRaises(ValueError, dpath.get, ehash, ['a', 'b', '*', 'd'])
def test_delete_filter():
def afilter(x):
if int(x) == 31:
return True
return False
data = TestMapping({
"a": TestMapping({
"b": 0,
"c": 1,
"d": 31,
}),
})
dpath.delete(data, '/a/*', afilter=afilter)
assert data['a']['b'] == 0
assert data['a']['c'] == 1
assert 'd' not in data['a']
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