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test_datastructures.py
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test_datastructures.py
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import io
from tempfile import SpooledTemporaryFile
from typing import BinaryIO
import pytest
from starlette.datastructures import (
URL,
CommaSeparatedStrings,
FormData,
Headers,
MultiDict,
MutableHeaders,
QueryParams,
UploadFile,
)
def test_url():
u = URL("https://example.org:123/path/to/somewhere?abc=123#anchor")
assert u.scheme == "https"
assert u.hostname == "example.org"
assert u.port == 123
assert u.netloc == "example.org:123"
assert u.username is None
assert u.password is None
assert u.path == "/path/to/somewhere"
assert u.query == "abc=123"
assert u.fragment == "anchor"
new = u.replace(scheme="http")
assert new == "http://example.org:123/path/to/somewhere?abc=123#anchor"
assert new.scheme == "http"
new = u.replace(port=None)
assert new == "https://example.org/path/to/somewhere?abc=123#anchor"
assert new.port is None
new = u.replace(hostname="example.com")
assert new == "https://example.com:123/path/to/somewhere?abc=123#anchor"
assert new.hostname == "example.com"
def test_url_query_params():
u = URL("https://example.org/path/?page=3")
assert u.query == "page=3"
u = u.include_query_params(page=4)
assert str(u) == "https://example.org/path/?page=4"
u = u.include_query_params(search="testing")
assert str(u) == "https://example.org/path/?page=4&search=testing"
u = u.replace_query_params(order="name")
assert str(u) == "https://example.org/path/?order=name"
u = u.remove_query_params("order")
assert str(u) == "https://example.org/path/"
def test_hidden_password():
u = URL("https://example.org/path/to/somewhere")
assert repr(u) == "URL('https://example.org/path/to/somewhere')"
u = URL("https://username@example.org/path/to/somewhere")
assert repr(u) == "URL('https://username@example.org/path/to/somewhere')"
u = URL("https://username:password@example.org/path/to/somewhere")
assert repr(u) == "URL('https://username:********@example.org/path/to/somewhere')"
def test_csv():
csv = CommaSeparatedStrings('"localhost", "127.0.0.1", 0.0.0.0')
assert list(csv) == ["localhost", "127.0.0.1", "0.0.0.0"]
assert repr(csv) == "CommaSeparatedStrings(['localhost', '127.0.0.1', '0.0.0.0'])"
assert str(csv) == "'localhost', '127.0.0.1', '0.0.0.0'"
assert csv[0] == "localhost"
assert len(csv) == 3
csv = CommaSeparatedStrings("'localhost', '127.0.0.1', 0.0.0.0")
assert list(csv) == ["localhost", "127.0.0.1", "0.0.0.0"]
assert repr(csv) == "CommaSeparatedStrings(['localhost', '127.0.0.1', '0.0.0.0'])"
assert str(csv) == "'localhost', '127.0.0.1', '0.0.0.0'"
csv = CommaSeparatedStrings("localhost, 127.0.0.1, 0.0.0.0")
assert list(csv) == ["localhost", "127.0.0.1", "0.0.0.0"]
assert repr(csv) == "CommaSeparatedStrings(['localhost', '127.0.0.1', '0.0.0.0'])"
assert str(csv) == "'localhost', '127.0.0.1', '0.0.0.0'"
csv = CommaSeparatedStrings(["localhost", "127.0.0.1", "0.0.0.0"])
assert list(csv) == ["localhost", "127.0.0.1", "0.0.0.0"]
assert repr(csv) == "CommaSeparatedStrings(['localhost', '127.0.0.1', '0.0.0.0'])"
assert str(csv) == "'localhost', '127.0.0.1', '0.0.0.0'"
def test_url_from_scope():
u = URL(
scope={"path": "/path/to/somewhere", "query_string": b"abc=123", "headers": []}
)
assert u == "/path/to/somewhere?abc=123"
assert repr(u) == "URL('/path/to/somewhere?abc=123')"
u = URL(
scope={
"scheme": "https",
"server": ("example.org", 123),
"path": "/path/to/somewhere",
"query_string": b"abc=123",
"headers": [],
}
)
assert u == "https://example.org:123/path/to/somewhere?abc=123"
assert repr(u) == "URL('https://example.org:123/path/to/somewhere?abc=123')"
u = URL(
scope={
"scheme": "https",
"server": ("example.org", 443),
"path": "/path/to/somewhere",
"query_string": b"abc=123",
"headers": [],
}
)
assert u == "https://example.org/path/to/somewhere?abc=123"
assert repr(u) == "URL('https://example.org/path/to/somewhere?abc=123')"
def test_headers():
h = Headers(raw=[(b"a", b"123"), (b"a", b"456"), (b"b", b"789")])
assert "a" in h
assert "A" in h
assert "b" in h
assert "B" in h
assert "c" not in h
assert h["a"] == "123"
assert h.get("a") == "123"
assert h.get("nope", default=None) is None
assert h.getlist("a") == ["123", "456"]
assert h.keys() == ["a", "a", "b"]
assert h.values() == ["123", "456", "789"]
assert h.items() == [("a", "123"), ("a", "456"), ("b", "789")]
assert list(h) == ["a", "a", "b"]
assert dict(h) == {"a": "123", "b": "789"}
assert repr(h) == "Headers(raw=[(b'a', b'123'), (b'a', b'456'), (b'b', b'789')])"
assert h == Headers(raw=[(b"a", b"123"), (b"b", b"789"), (b"a", b"456")])
assert h != [(b"a", b"123"), (b"A", b"456"), (b"b", b"789")]
h = Headers({"a": "123", "b": "789"})
assert h["A"] == "123"
assert h["B"] == "789"
assert h.raw == [(b"a", b"123"), (b"b", b"789")]
assert repr(h) == "Headers({'a': '123', 'b': '789'})"
def test_mutable_headers():
h = MutableHeaders()
assert dict(h) == {}
h["a"] = "1"
assert dict(h) == {"a": "1"}
h["a"] = "2"
assert dict(h) == {"a": "2"}
h.setdefault("a", "3")
assert dict(h) == {"a": "2"}
h.setdefault("b", "4")
assert dict(h) == {"a": "2", "b": "4"}
del h["a"]
assert dict(h) == {"b": "4"}
assert h.raw == [(b"b", b"4")]
def test_mutable_headers_merge():
h = MutableHeaders()
h = h | MutableHeaders({"a": "1"})
assert isinstance(h, MutableHeaders)
assert dict(h) == {"a": "1"}
assert h.items() == [("a", "1")]
assert h.raw == [(b"a", b"1")]
def test_mutable_headers_merge_dict():
h = MutableHeaders()
h = h | {"a": "1"}
assert isinstance(h, MutableHeaders)
assert dict(h) == {"a": "1"}
assert h.items() == [("a", "1")]
assert h.raw == [(b"a", b"1")]
def test_mutable_headers_update():
h = MutableHeaders()
h |= MutableHeaders({"a": "1"})
assert isinstance(h, MutableHeaders)
assert dict(h) == {"a": "1"}
assert h.items() == [("a", "1")]
assert h.raw == [(b"a", b"1")]
def test_mutable_headers_update_dict():
h = MutableHeaders()
h |= {"a": "1"}
assert isinstance(h, MutableHeaders)
assert dict(h) == {"a": "1"}
assert h.items() == [("a", "1")]
assert h.raw == [(b"a", b"1")]
def test_mutable_headers_merge_not_mapping():
h = MutableHeaders()
with pytest.raises(TypeError):
h |= {"not_mapping"} # type: ignore[arg-type]
with pytest.raises(TypeError):
h | {"not_mapping"} # type: ignore[operator]
def test_headers_mutablecopy():
h = Headers(raw=[(b"a", b"123"), (b"a", b"456"), (b"b", b"789")])
c = h.mutablecopy()
assert c.items() == [("a", "123"), ("a", "456"), ("b", "789")]
c["a"] = "abc"
assert c.items() == [("a", "abc"), ("b", "789")]
def test_mutable_headers_from_scope():
# "headers" in scope must not necessarily be a list
h = MutableHeaders(scope={"headers": ((b"a", b"1"),)})
assert dict(h) == {"a": "1"}
h.update({"b": "2"})
assert dict(h) == {"a": "1", "b": "2"}
assert list(h.items()) == [("a", "1"), ("b", "2")]
assert list(h.raw) == [(b"a", b"1"), (b"b", b"2")]
def test_url_blank_params():
q = QueryParams("a=123&abc&def&b=456")
assert "a" in q
assert "abc" in q
assert "def" in q
assert "b" in q
val = q.get("abc")
assert val is not None
assert len(val) == 0
assert len(q["a"]) == 3
assert list(q.keys()) == ["a", "abc", "def", "b"]
def test_queryparams():
q = QueryParams("a=123&a=456&b=789")
assert "a" in q
assert "A" not in q
assert "c" not in q
assert q["a"] == "456"
assert q.get("a") == "456"
assert q.get("nope", default=None) is None
assert q.getlist("a") == ["123", "456"]
assert list(q.keys()) == ["a", "b"]
assert list(q.values()) == ["456", "789"]
assert list(q.items()) == [("a", "456"), ("b", "789")]
assert len(q) == 2
assert list(q) == ["a", "b"]
assert dict(q) == {"a": "456", "b": "789"}
assert str(q) == "a=123&a=456&b=789"
assert repr(q) == "QueryParams('a=123&a=456&b=789')"
assert QueryParams({"a": "123", "b": "456"}) == QueryParams(
[("a", "123"), ("b", "456")]
)
assert QueryParams({"a": "123", "b": "456"}) == QueryParams("a=123&b=456")
assert QueryParams({"a": "123", "b": "456"}) == QueryParams(
{"b": "456", "a": "123"}
)
assert QueryParams() == QueryParams({})
assert QueryParams([("a", "123"), ("a", "456")]) == QueryParams("a=123&a=456")
assert QueryParams({"a": "123", "b": "456"}) != "invalid"
q = QueryParams([("a", "123"), ("a", "456")])
assert QueryParams(q) == q
@pytest.mark.anyio
async def test_upload_file_file_input():
"""Test passing file/stream into the UploadFile constructor"""
stream = io.BytesIO(b"data")
file = UploadFile(filename="file", file=stream, size=len(stream))
assert file.size == 4
assert await file.read() == b"data"
await file.write(b" and more data!")
assert await file.read() == b""
assert file.size == 19
await file.seek(0)
assert await file.read() == b"data and more data!"
@pytest.mark.anyio
@pytest.mark.parametrize("max_size", [1, 1024], ids=["rolled", "unrolled"])
async def test_uploadfile_rolling(max_size: int) -> None:
"""Test that we can r/w to a SpooledTemporaryFile
managed by UploadFile before and after it rolls to disk
"""
stream: BinaryIO = SpooledTemporaryFile( # type: ignore[assignment]
max_size=max_size
)
file = UploadFile(filename="file", file=stream, size=len(stream))
assert await file.read() == b""
await file.write(b"data")
assert await file.read() == b""
await file.seek(0)
assert await file.read() == b"data"
await file.write(b" more")
assert await file.read() == b""
await file.seek(0)
assert await file.read() == b"data more"
await file.close()
def test_formdata():
stream = io.BytesIO(b"data")
upload = UploadFile(filename="file", file=stream, size=len(stream))
form = FormData([("a", "123"), ("a", "456"), ("b", upload)])
assert "a" in form
assert "A" not in form
assert "c" not in form
assert form["a"] == "456"
assert form.get("a") == "456"
assert form.get("nope", default=None) is None
assert form.getlist("a") == ["123", "456"]
assert list(form.keys()) == ["a", "b"]
assert list(form.values()) == ["456", upload]
assert list(form.items()) == [("a", "456"), ("b", upload)]
assert len(form) == 2
assert list(form) == ["a", "b"]
assert dict(form) == {"a": "456", "b": upload}
assert (
repr(form)
== "FormData([('a', '123'), ('a', '456'), ('b', " + repr(upload) + ")])"
)
assert FormData(form) == form
assert FormData({"a": "123", "b": "789"}) == FormData([("a", "123"), ("b", "789")])
assert FormData({"a": "123", "b": "789"}) != {"a": "123", "b": "789"}
def test_multidict():
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
assert "a" in q
assert "A" not in q
assert "c" not in q
assert q["a"] == "456"
assert q.get("a") == "456"
assert q.get("nope", default=None) is None
assert q.getlist("a") == ["123", "456"]
assert list(q.keys()) == ["a", "b"]
assert list(q.values()) == ["456", "789"]
assert list(q.items()) == [("a", "456"), ("b", "789")]
assert len(q) == 2
assert list(q) == ["a", "b"]
assert dict(q) == {"a": "456", "b": "789"}
assert str(q) == "MultiDict([('a', '123'), ('a', '456'), ('b', '789')])"
assert repr(q) == "MultiDict([('a', '123'), ('a', '456'), ('b', '789')])"
assert MultiDict({"a": "123", "b": "456"}) == MultiDict(
[("a", "123"), ("b", "456")]
)
assert MultiDict({"a": "123", "b": "456"}) == MultiDict(
[("a", "123"), ("b", "456")]
)
assert MultiDict({"a": "123", "b": "456"}) == MultiDict({"b": "456", "a": "123"})
assert MultiDict() == MultiDict({})
assert MultiDict({"a": "123", "b": "456"}) != "invalid"
q = MultiDict([("a", "123"), ("a", "456")])
assert MultiDict(q) == q
q = MultiDict([("a", "123"), ("a", "456")])
q["a"] = "789"
assert q["a"] == "789"
assert q.get("a") == "789"
assert q.getlist("a") == ["789"]
q = MultiDict([("a", "123"), ("a", "456")])
del q["a"]
assert q.get("a") is None
assert repr(q) == "MultiDict([])"
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
assert q.pop("a") == "456"
assert q.get("a", None) is None
assert repr(q) == "MultiDict([('b', '789')])"
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
item = q.popitem()
assert q.get(item[0]) is None
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
assert q.poplist("a") == ["123", "456"]
assert q.get("a") is None
assert repr(q) == "MultiDict([('b', '789')])"
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
q.clear()
assert q.get("a") is None
assert repr(q) == "MultiDict([])"
q = MultiDict([("a", "123")])
q.setlist("a", ["456", "789"])
assert q.getlist("a") == ["456", "789"]
q.setlist("b", [])
assert "b" not in q
q = MultiDict([("a", "123")])
assert q.setdefault("a", "456") == "123"
assert q.getlist("a") == ["123"]
assert q.setdefault("b", "456") == "456"
assert q.getlist("b") == ["456"]
assert repr(q) == "MultiDict([('a', '123'), ('b', '456')])"
q = MultiDict([("a", "123")])
q.append("a", "456")
assert q.getlist("a") == ["123", "456"]
assert repr(q) == "MultiDict([('a', '123'), ('a', '456')])"
q = MultiDict([("a", "123"), ("b", "456")])
q.update({"a": "789"})
assert q.getlist("a") == ["789"]
q == MultiDict([("a", "789"), ("b", "456")])
q = MultiDict([("a", "123"), ("b", "456")])
q.update(q)
assert repr(q) == "MultiDict([('a', '123'), ('b', '456')])"
q = MultiDict([("a", "123"), ("a", "456")])
q.update([("a", "123")])
assert q.getlist("a") == ["123"]
q.update([("a", "456")], a="789", b="123")
assert q == MultiDict([("a", "456"), ("a", "789"), ("b", "123")])