Repository navigation
Expand file tree
/
Copy pathtest_required_args.py
More file actions
111 lines (77 loc) · 2.99 KB
/
Copy pathtest_required_args.py
File metadata and controls
111 lines (77 loc) · 2.99 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
from __future__ import annotations
import pytest
from unlayer._utils import required_args
def test_too_many_positional_params() -> None:
@required_args(["a"])
def foo(a: str | None = None) -> str | None:
return a
with pytest.raises(TypeError, match=r"foo\(\) takes 1 argument\(s\) but 2 were given"):
foo("a", "b") # type: ignore
def test_positional_param() -> None:
@required_args(["a"])
def foo(a: str | None = None) -> str | None:
return a
assert foo("a") == "a"
assert foo(None) is None
assert foo(a="b") == "b"
with pytest.raises(TypeError, match="Missing required argument: 'a'"):
foo()
def test_keyword_only_param() -> None:
@required_args(["a"])
def foo(*, a: str | None = None) -> str | None:
return a
assert foo(a="a") == "a"
assert foo(a=None) is None
assert foo(a="b") == "b"
with pytest.raises(TypeError, match="Missing required argument: 'a'"):
foo()
def test_multiple_params() -> None:
@required_args(["a", "b", "c"])
def foo(a: str = "", *, b: str = "", c: str = "") -> str | None:
return f"{a} {b} {c}"
assert foo(a="a", b="b", c="c") == "a b c"
error_message = r"Missing required arguments.*"
with pytest.raises(TypeError, match=error_message):
foo()
with pytest.raises(TypeError, match=error_message):
foo(a="a")
with pytest.raises(TypeError, match=error_message):
foo(b="b")
with pytest.raises(TypeError, match=error_message):
foo(c="c")
with pytest.raises(TypeError, match=r"Missing required argument: 'a'"):
foo(b="a", c="c")
with pytest.raises(TypeError, match=r"Missing required argument: 'b'"):
foo("a", c="c")
def test_multiple_variants() -> None:
@required_args(["a"], ["b"])
def foo(*, a: str | None = None, b: str | None = None) -> str | None:
return a if a is not None else b
assert foo(a="foo") == "foo"
assert foo(b="bar") == "bar"
assert foo(a=None) is None
assert foo(b=None) is None
# TODO: this error message could probably be improved
with pytest.raises(
TypeError,
match=r"Missing required arguments; Expected either \('a'\) or \('b'\) arguments to be given",
):
foo()
def test_multiple_params_multiple_variants() -> None:
@required_args(["a", "b"], ["c"])
def foo(*, a: str | None = None, b: str | None = None, c: str | None = None) -> str | None:
if a is not None:
return a
if b is not None:
return b
return c
error_message = r"Missing required arguments; Expected either \('a' and 'b'\) or \('c'\) arguments to be given"
with pytest.raises(TypeError, match=error_message):
foo(a="foo")
with pytest.raises(TypeError, match=error_message):
foo(b="bar")
with pytest.raises(TypeError, match=error_message):
foo()
assert foo(a=None, b="bar") == "bar"
assert foo(c=None) is None
assert foo(c="foo") == "foo"