def test_wild_del(self):
p1 = WildPath("bb.*")
p2 = WildPath("b*.1")
p3 = WildPath("c*.e")
p4 = WildPath("c*.e*")
p5 = WildPath("*")
s = deepcopy(self.complex)
p1._del_in(s)
self.assertEqual(p1.get_in(s), [])
s = deepcopy(self.complex)
p2._del_in(s)
self.assertEqual(s.ba, [2])
self.assertEqual(s.bb, [4])
s = deepcopy(self.complex)
p3._del_in(s)
self.assertEqual(s.ca, {"d": 6, "f": 8})
self.assertEqual(s.cb.__dict__, {})
s = deepcopy(self.complex)
p4._del_in(s)
self.assertEqual(s.ca, {"d": 6, "f": 8})
self.assertEqual(s.cb.__dict__, {})
s = deepcopy(self.complex)
p5._del_in(s)
self.assertEqual(s.__dict__, {})
def test_longer_del(self):
s = deepcopy(self.simple)
p = WildPath("b.0")
p._del_in(s)
self.assertEqual(s.b, [3])
p = WildPath("c.d")
p._del_in(s)
self.assertEqual(s.c, {"e": 5})
p = WildPath("d.e")
p._del_in(s)
self.assertEqual(len(s.d.__dict__), 0)
def test_basic_del(self):
p1 = WildPath("a")
p2 = WildPath("1")
d = dict(a=1)
l = [0, 1]
o = Object(a=1)
p1._del_in(d)
p2._del_in(l)
p1._del_in(o)
self.assertEqual(d, {})
self.assertEqual(l, [0])
self.assertEqual(len(o.__dict__), 0)
def test_wild_path_example(self):
agenda = deepcopy(self.agenda)
try:
from wildpath.paths import WildPath
wildpath = WildPath("items.*.duration")
durations = wildpath.get_in(
agenda
) # retrieves all the durations of the items on the agenda
assert durations == ["5 minutes", "25 minutes", "5 minutes"]
wildpath._set_in(agenda,
["10 minutes", "50 minutes", "10 minutes"
]) # setting all the values,
assert wildpath.get_in(agenda) == [
"10 minutes", "50 minutes", "10 minutes"
]
wildpath._set_in(
agenda, "30 minutes") # or replacing all with a single value,
assert wildpath.get_in(agenda) == [
"30 minutes", "30 minutes", "30 minutes"
]
wildpath._del_in(
agenda) # delete all the items at wildpath from the structure
assert wildpath.has_in(
agenda
) == False # `has_in` checks if all the items at wildpath are there
# To get the start and end time of the meeting:
wildpath = WildPath("*_time")
assert wildpath.get_in(agenda) == {
"start_time": "10:00",
"end_time": "11:00"
}
# WildPath supports a number of wildcard(-like) constructs
# '|' lets you select multiple keys
wildpath = WildPath("start_time|end_time")
assert wildpath.get_in(agenda) == {
"start_time": "10:00",
"end_time": "11:00"
}
# '?' stands for a single character
assert WildPath("item?").get_in({
"item1": "chair",
"item2": "table",
"count": 2
}) == {
"item1": "chair",
"item2": "table"
}
# '!' at the start of a key definition in a wildpath:
assert WildPath("!item?").get_in({
"item1": "chair",
"item2": "table",
"count": 2
}) == {
"count": 2
}
wildpath = WildPath("start_time|end_time")
assert wildpath.get_in(agenda) == {
"start_time": "10:00",
"end_time": "11:00"
}
# similarly it supports slices as wildcard like path=elements
wildpath = WildPath(
"items.:2.name") # takes the names of the first 2 items
assert wildpath.get_in(agenda) == ["opening", "progress"]
wildpath = WildPath("items.-1::-1.name")
assert wildpath.get_in(agenda) == [
"closing", "progress", "opening"
]
except Exception as e:
self.fail(e)