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|
import copy
import pytest
from jsonpath_ng.ext.parser import parse as ext_parse
from jsonpath_ng.jsonpath import DatumInContext, Fields, Root, This
from jsonpath_ng.lexer import JsonPathLexerError
from jsonpath_ng.parser import parse as base_parse
from .helpers import assert_full_path_equality, assert_value_equality
@pytest.mark.parametrize(
"path_arg, context_arg, expected_path, expected_full_path",
(
(None, None, This(), This()),
(Root(), None, Root(), Root()),
(Fields("foo"), "unimportant", Fields("foo"), Fields("foo")),
(
Fields("foo"),
DatumInContext("unimportant", path=Fields("baz"), context="unimportant"),
Fields("foo"),
Fields("baz").child(Fields("foo")),
),
),
)
def test_datumincontext_init(path_arg, context_arg, expected_path, expected_full_path):
datum = DatumInContext(3, path=path_arg, context=context_arg)
assert datum.path == expected_path
assert datum.full_path == expected_full_path
def test_datumincontext_in_context():
d1 = DatumInContext(3, path=Fields("foo"), context=DatumInContext("bar"))
d2 = DatumInContext(3).in_context(path=Fields("foo"), context=DatumInContext("bar"))
assert d1 == d2
def test_datumincontext_in_context_nested():
sequential_calls = (
DatumInContext(3)
.in_context(path=Fields("foo"), context="whatever")
.in_context(path=Fields("baz"), context="whatever")
)
nested_calls = DatumInContext(3).in_context(
path=Fields("foo"),
context=DatumInContext("whatever").in_context(
path=Fields("baz"), context="whatever"
),
)
assert sequential_calls == nested_calls
parsers = pytest.mark.parametrize(
"parse",
(
pytest.param(base_parse, id="parse=jsonpath_ng.parser.parse"),
pytest.param(ext_parse, id="parse=jsonpath_ng.ext.parser.parse"),
),
)
update_test_cases = (
#
# Fields
# ------
#
("foo", {"foo": 1}, 5, {"foo": 5}),
("$.*", {"foo": 1, "bar": 2}, 3, {"foo": 3, "bar": 3}),
#
# Indexes
# -------
#
("[0]", ["foo", "bar", "baz"], "test", ["test", "bar", "baz"]),
#
# Slices
# ------
#
("[0:2]", ["foo", "bar", "baz"], "test", ["test", "test", "baz"]),
#
# Root
# ----
#
("$", "foo", "bar", "bar"),
#
# This
# ----
#
("`this`", "foo", "bar", "bar"),
#
# Children
# --------
#
("$.foo", {"foo": "bar"}, "baz", {"foo": "baz"}),
("foo.bar", {"foo": {"bar": 1}}, "baz", {"foo": {"bar": "baz"}}),
#
# Descendants
# -----------
#
("$..somefield", {"somefield": 1}, 42, {"somefield": 42}),
(
"$..nestedfield",
{"outer": {"nestedfield": 1}},
42,
{"outer": {"nestedfield": 42}},
),
(
"$..bar",
{"outs": {"bar": 1, "ins": {"bar": 9}}, "outs2": {"bar": 2}},
42,
{"outs": {"bar": 42, "ins": {"bar": 42}}, "outs2": {"bar": 42}},
),
#
# Where
# -----
#
(
"*.bar where baz",
{"foo": {"bar": {"baz": 1}}, "bar": {"baz": 2}},
5,
{"foo": {"bar": 5}, "bar": {"baz": 2}},
),
(
"(* where flag) .. bar",
{"foo": {"bar": 1, "flag": 1}, "baz": {"bar": 2}},
3,
{"foo": {"bar": 3, "flag": 1}, "baz": {"bar": 2}},
),
#
# WhereNot
# --------
#
(
'(* wherenot flag) .. bar',
{'foo': {'bar': 1, 'flag': 1}, 'baz': {'bar': 2}},
4,
{'foo': {'bar': 1, 'flag': 1}, 'baz': {'bar': 4}},
),
#
# Lambdas
# -------
#
(
"foo[*].baz",
{'foo': [{'baz': 1}, {'baz': 2}]},
lambda x, y, z: x + 1,
{'foo': [{'baz': 2}, {'baz': 3}]}
),
#
# Update with Boolean in data
# ---------------------------
#
(
"$.*.number",
{'foo': ['abc', 'def'], 'bar': {'number': 123456}, 'boolean': True},
'98765',
{'foo': ['abc', 'def'], 'bar': {'number': '98765'}, 'boolean': True},
),
)
@pytest.mark.parametrize(
"expression, data, update_value, expected_value",
update_test_cases,
)
@parsers
def test_update(parse, expression, data, update_value, expected_value):
data_copy = copy.deepcopy(data)
result = parse(expression).update(data_copy, update_value)
assert result == expected_value
find_test_cases = (
#
# * (star)
# --------
#
("*", {"foo": 1, "baz": 2}, {1, 2}, {"foo", "baz"}),
#
# Fields
# ------
#
("foo", {"foo": "baz"}, ["baz"], ["foo"]),
("foo,baz", {"foo": 1, "baz": 2}, [1, 2], ["foo", "baz"]),
("@foo", {"@foo": 1}, [1], ["@foo"]),
#
# Roots
# -----
#
("$", {"foo": "baz"}, [{"foo": "baz"}], ["$"]),
("foo.$", {"foo": "baz"}, [{"foo": "baz"}], ["$"]),
("foo.$.foo", {"foo": "baz"}, ["baz"], ["foo"]),
#
# This
# ----
#
("`this`", {"foo": "baz"}, [{"foo": "baz"}], ["`this`"]),
("foo.`this`", {"foo": "baz"}, ["baz"], ["foo"]),
("foo.`this`.baz", {"foo": {"baz": 3}}, [3], ["foo.baz"]),
#
# Indexes
# -------
#
("[0]", [42], [42], ["[0]"]),
("[5]", [42], [], []),
("[2]", [34, 65, 29, 59], [29], ["[2]"]),
("[0]", None, [], []),
#
# Slices
# ------
#
("[*]", [1, 2, 3], [1, 2, 3], ["[0]", "[1]", "[2]"]),
("[*]", range(1, 4), [1, 2, 3], ["[0]", "[1]", "[2]"]),
("[1:]", [1, 2, 3, 4], [2, 3, 4], ["[1]", "[2]", "[3]"]),
("[1:3]", [1, 2, 3, 4], [2, 3], ["[1]", "[2]"]),
("[:2]", [1, 2, 3, 4], [1, 2], ["[0]", "[1]"]),
("[:3:2]", [1, 2, 3, 4], [1, 3], ["[0]", "[2]"]),
("[1::2]", [1, 2, 3, 4], [2, 4], ["[1]", "[3]"]),
("[1:6:3]", range(1, 10), [2, 5], ["[1]", "[4]"]),
("[::-2]", [1, 2, 3, 4, 5], [5, 3, 1], ["[4]", "[2]", "[0]"]),
#
# Slices (funky hacks)
# --------------------
#
("[*]", 1, [1], ["[0]"]),
("[0:]", 1, [1], ["[0]"]),
("[*]", {"foo": 1}, [{"foo": 1}], ["[0]"]),
("[*].foo", {"foo": 1}, [1], ["[0].foo"]),
#
# Children
# --------
#
("foo.baz", {"foo": {"baz": 3}}, [3], ["foo.baz"]),
("foo.baz", {"foo": {"baz": [3]}}, [[3]], ["foo.baz"]),
("foo.baz.qux", {"foo": {"baz": {"qux": 5}}}, [5], ["foo.baz.qux"]),
#
# Descendants
# -----------
#
(
"foo..baz",
{"foo": {"baz": 1, "bing": {"baz": 2}}},
[1, 2],
["foo.baz", "foo.bing.baz"],
),
(
"foo..baz",
{"foo": [{"baz": 1}, {"baz": 2}]},
[1, 2],
["foo.[0].baz", "foo.[1].baz"],
),
#
# Parents
# -------
#
("foo.baz.`parent`", {"foo": {"baz": 3}}, [{"baz": 3}], ["foo"]),
(
"foo.`parent`.foo.baz.`parent`.baz.qux",
{"foo": {"baz": {"qux": 5}}},
[5],
["foo.baz.qux"],
),
#
# Hyphens
# -------
#
("foo.bar-baz", {"foo": {"bar-baz": 3}}, [3], ["foo.bar-baz"]),
(
"foo.[bar-baz,blah-blah]",
{"foo": {"bar-baz": 3, "blah-blah": 5}},
[3, 5],
["foo.bar-baz", "foo.blah-blah"],
),
#
# Literals
# --------
#
("A.'a.c'", {"A": {"a.c": "d"}}, ["d"], ["A.'a.c'"]),
#
# Numeric keys
# --------
#
("1", {"1": "foo"}, ["foo"], ["1"]),
)
@pytest.mark.parametrize(
"path, data, expected_values, expected_full_paths", find_test_cases
)
@parsers
def test_find(parse, path, data, expected_values, expected_full_paths):
results = parse(path).find(data)
# Verify result values and full paths match expectations.
assert_value_equality(results, expected_values)
assert_full_path_equality(results, expected_full_paths)
find_test_cases_with_auto_id = (
#
# * (star)
# --------
#
("*", {"foo": 1, "baz": 2}, {1, 2, "`this`"}),
#
# Fields
# ------
#
("foo.id", {"foo": "baz"}, ["foo"]),
("foo.id", {"foo": {"id": "baz"}}, ["baz"]),
("foo,baz.id", {"foo": 1, "baz": 2}, ["foo", "baz"]),
("*.id", {"foo": {"id": 1}, "baz": 2}, {"1", "baz"}),
#
# Roots
# -----
#
("$.id", {"foo": "baz"}, ["$"]),
("foo.$.id", {"foo": "baz", "id": "bizzle"}, ["bizzle"]),
("foo.$.baz.id", {"foo": 4, "baz": 3}, ["baz"]),
#
# This
# ----
#
("id", {"foo": "baz"}, ["`this`"]),
("foo.`this`.id", {"foo": "baz"}, ["foo"]),
("foo.`this`.baz.id", {"foo": {"baz": 3}}, ["foo.baz"]),
#
# Indexes
# -------
#
("[0].id", [42], ["[0]"]),
("[2].id", [34, 65, 29, 59], ["[2]"]),
#
# Slices
# ------
#
("[*].id", [1, 2, 3], ["[0]", "[1]", "[2]"]),
("[1:].id", [1, 2, 3, 4], ["[1]", "[2]", "[3]"]),
#
# Children
# --------
#
("foo.baz.id", {"foo": {"baz": 3}}, ["foo.baz"]),
("foo.baz.id", {"foo": {"baz": [3]}}, ["foo.baz"]),
("foo.baz.id", {"foo": {"id": "bizzle", "baz": 3}}, ["bizzle.baz"]),
("foo.baz.id", {"foo": {"baz": {"id": "hi"}}}, ["foo.hi"]),
("foo.baz.bizzle.id", {"foo": {"baz": {"bizzle": 5}}}, ["foo.baz.bizzle"]),
#
# Descendants
# -----------
#
(
"foo..baz.id",
{"foo": {"baz": 1, "bing": {"baz": 2}}},
["foo.baz", "foo.bing.baz"],
),
)
@pytest.mark.parametrize("path, data, expected_values", find_test_cases_with_auto_id)
@parsers
def test_find_values_auto_id(auto_id_field, parse, path, data, expected_values):
result = parse(path).find(data)
assert_value_equality(result, expected_values)
@parsers
def test_find_full_paths_auto_id(auto_id_field, parse):
results = parse("*").find({"foo": 1, "baz": 2})
assert_full_path_equality(results, {"foo", "baz", "id"})
@pytest.mark.parametrize(
"string, target",
(
("m.[1].id", ["1.m.a2id"]),
("m.[1].$.b.id", ["1.bid"]),
("m.[0].id", ["1.m.[0]"]),
),
)
@parsers
def test_nested_index_auto_id(auto_id_field, parse, string, target):
data = {
"id": 1,
"b": {"id": "bid", "name": "bob"},
"m": [{"a": "a1"}, {"a": "a2", "id": "a2id"}],
}
result = parse(string).find(data)
assert_value_equality(result, target)
def test_invalid_hyphenation_in_key():
with pytest.raises(JsonPathLexerError):
base_parse("foo.-baz")
|
