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from __future__ import annotations
from typing import cast
import pytest
from parsel import Selector
from parsel.selector import _NOT_SET
class TestJMESPath:
def test_json_has_html(self) -> None:
"""Sometimes the information is returned in a json wrapper"""
data = """
{
"content": [
{
"name": "A",
"value": "a"
},
{
"name": {
"age": 18
},
"value": "b"
},
{
"name": "C",
"value": "c"
},
{
"name": "<a>D</a>",
"value": "<div>d</div>"
}
],
"html": "<div><a>a<br>b</a>c</div><div><a>d</a>e<b>f</b></div>"
}
"""
sel = Selector(text=data)
assert (
sel.jmespath("html").get()
== "<div><a>a<br>b</a>c</div><div><a>d</a>e<b>f</b></div>"
)
assert sel.jmespath("html").xpath("//div/a/text()").getall() == ["a", "b", "d"]
assert sel.jmespath("html").css("div > b").getall() == ["<b>f</b>"]
assert cast("int", sel.jmespath("content").jmespath("name.age").get()) == 18
def test_html_has_json(self) -> None:
html_text = """
<div>
<h1>Information</h1>
<content>
{
"user": [
{
"name": "A",
"age": 18
},
{
"name": "B",
"age": 32
},
{
"name": "C",
"age": 22
},
{
"name": "D",
"age": 25
}
],
"total": 4,
"status": "ok"
}
</content>
</div>
"""
sel = Selector(text=html_text)
assert sel.xpath("//div/content/text()").jmespath("user[*].name").getall() == [
"A",
"B",
"C",
"D",
]
assert sel.xpath("//div/content").jmespath("user[*].name").getall() == [
"A",
"B",
"C",
"D",
]
assert cast("int", sel.xpath("//div/content").jmespath("total").get()) == 4
def test_jmestpath_with_re(self) -> None:
html_text = """
<div>
<h1>Information</h1>
<content>
{
"user": [
{
"name": "A",
"age": 18
},
{
"name": "B",
"age": 32
},
{
"name": "C",
"age": 22
},
{
"name": "D",
"age": 25
}
],
"total": 4,
"status": "ok"
}
</content>
</div>
"""
sel = Selector(text=html_text)
assert sel.xpath("//div/content/text()").jmespath("user[*].name").re(
r"(\w+)"
) == ["A", "B", "C", "D"]
assert sel.xpath("//div/content").jmespath("user[*].name").re(r"(\w+)") == [
"A",
"B",
"C",
"D",
]
with pytest.raises(TypeError):
sel.xpath("//div/content").jmespath("user[*].age").re(r"(\d+)")
assert sel.xpath("//div/content").jmespath("unavailable").re(r"(\d+)") == []
assert (
sel.xpath("//div/content").jmespath("unavailable").re_first(r"(\d+)")
is None
)
assert sel.xpath("//div/content").jmespath("user[*].age.to_string(@)").re(
r"(\d+)"
) == ["18", "32", "22", "25"]
def test_json_types(self) -> None:
for text, root in (
("{}", {}),
('{"a": "b"}', {"a": "b"}),
("[]", []),
('["a"]', ["a"]),
('""', ""),
("0", 0),
("1", 1),
("true", True),
("false", False),
("null", None),
):
selector = Selector(text=text, root=_NOT_SET)
assert selector.type == "json"
assert selector._text == text
assert selector.root == root
selector = Selector(text=None, root=root)
assert selector.type == "json"
assert selector._text is None
assert selector.root == root
|
