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import itertools
import re
import sys
import textwrap
from typing import Any
from typing import cast
from typing import Dict
from typing import Iterator
from typing import List
from typing import Optional
from typing import Sequence
from typing import Tuple
from typing import Union
import attr
import hypothesis
from hypothesis import strategies
import pytest
from _pytest import fixtures
from _pytest import python
from _pytest.compat import _format_args
from _pytest.compat import getfuncargnames
from _pytest.compat import NOTSET
from _pytest.outcomes import fail
from _pytest.pytester import Pytester
from _pytest.python import _idval
from _pytest.python import idmaker
from _pytest.scope import Scope
class TestMetafunc:
def Metafunc(self, func, config=None) -> python.Metafunc:
# The unit tests of this class check if things work correctly
# on the funcarg level, so we don't need a full blown
# initialization.
class FuncFixtureInfoMock:
name2fixturedefs = None
def __init__(self, names):
self.names_closure = names
@attr.s
class DefinitionMock(python.FunctionDefinition):
obj = attr.ib()
_nodeid = attr.ib()
names = getfuncargnames(func)
fixtureinfo: Any = FuncFixtureInfoMock(names)
definition: Any = DefinitionMock._create(func, "mock::nodeid")
return python.Metafunc(definition, fixtureinfo, config, _ispytest=True)
def test_no_funcargs(self) -> None:
def function():
pass
metafunc = self.Metafunc(function)
assert not metafunc.fixturenames
repr(metafunc._calls)
def test_function_basic(self) -> None:
def func(arg1, arg2="qwe"):
pass
metafunc = self.Metafunc(func)
assert len(metafunc.fixturenames) == 1
assert "arg1" in metafunc.fixturenames
assert metafunc.function is func
assert metafunc.cls is None
def test_parametrize_error(self) -> None:
def func(x, y):
pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x", [1, 2])
pytest.raises(ValueError, lambda: metafunc.parametrize("x", [5, 6]))
pytest.raises(ValueError, lambda: metafunc.parametrize("x", [5, 6]))
metafunc.parametrize("y", [1, 2])
pytest.raises(ValueError, lambda: metafunc.parametrize("y", [5, 6]))
pytest.raises(ValueError, lambda: metafunc.parametrize("y", [5, 6]))
with pytest.raises(TypeError, match="^ids must be a callable or an iterable$"):
metafunc.parametrize("y", [5, 6], ids=42) # type: ignore[arg-type]
def test_parametrize_error_iterator(self) -> None:
def func(x):
raise NotImplementedError()
class Exc(Exception):
def __repr__(self):
return "Exc(from_gen)"
def gen() -> Iterator[Union[int, None, Exc]]:
yield 0
yield None
yield Exc()
metafunc = self.Metafunc(func)
# When the input is an iterator, only len(args) are taken,
# so the bad Exc isn't reached.
metafunc.parametrize("x", [1, 2], ids=gen()) # type: ignore[arg-type]
assert [(x.funcargs, x.id) for x in metafunc._calls] == [
({"x": 1}, "0"),
({"x": 2}, "2"),
]
with pytest.raises(
fail.Exception,
match=(
r"In func: ids must be list of string/float/int/bool, found:"
r" Exc\(from_gen\) \(type: <class .*Exc'>\) at index 2"
),
):
metafunc.parametrize("x", [1, 2, 3], ids=gen()) # type: ignore[arg-type]
def test_parametrize_bad_scope(self) -> None:
def func(x):
pass
metafunc = self.Metafunc(func)
with pytest.raises(
fail.Exception,
match=r"parametrize\(\) call in func got an unexpected scope value 'doggy'",
):
metafunc.parametrize("x", [1], scope="doggy") # type: ignore[arg-type]
def test_parametrize_request_name(self, pytester: Pytester) -> None:
"""Show proper error when 'request' is used as a parameter name in parametrize (#6183)"""
def func(request):
raise NotImplementedError()
metafunc = self.Metafunc(func)
with pytest.raises(
fail.Exception,
match=r"'request' is a reserved name and cannot be used in @pytest.mark.parametrize",
):
metafunc.parametrize("request", [1])
def test_find_parametrized_scope(self) -> None:
"""Unit test for _find_parametrized_scope (#3941)."""
from _pytest.python import _find_parametrized_scope
@attr.s
class DummyFixtureDef:
_scope = attr.ib()
fixtures_defs = cast(
Dict[str, Sequence[fixtures.FixtureDef[object]]],
dict(
session_fix=[DummyFixtureDef(Scope.Session)],
package_fix=[DummyFixtureDef(Scope.Package)],
module_fix=[DummyFixtureDef(Scope.Module)],
class_fix=[DummyFixtureDef(Scope.Class)],
func_fix=[DummyFixtureDef(Scope.Function)],
),
)
# use arguments to determine narrow scope; the cause of the bug is that it would look on all
# fixture defs given to the method
def find_scope(argnames, indirect):
return _find_parametrized_scope(argnames, fixtures_defs, indirect=indirect)
assert find_scope(["func_fix"], indirect=True) == Scope.Function
assert find_scope(["class_fix"], indirect=True) == Scope.Class
assert find_scope(["module_fix"], indirect=True) == Scope.Module
assert find_scope(["package_fix"], indirect=True) == Scope.Package
assert find_scope(["session_fix"], indirect=True) == Scope.Session
assert find_scope(["class_fix", "func_fix"], indirect=True) == Scope.Function
assert find_scope(["func_fix", "session_fix"], indirect=True) == Scope.Function
assert find_scope(["session_fix", "class_fix"], indirect=True) == Scope.Class
assert (
find_scope(["package_fix", "session_fix"], indirect=True) == Scope.Package
)
assert find_scope(["module_fix", "session_fix"], indirect=True) == Scope.Module
# when indirect is False or is not for all scopes, always use function
assert (
find_scope(["session_fix", "module_fix"], indirect=False) == Scope.Function
)
assert (
find_scope(["session_fix", "module_fix"], indirect=["module_fix"])
== Scope.Function
)
assert (
find_scope(
["session_fix", "module_fix"], indirect=["session_fix", "module_fix"]
)
== Scope.Module
)
def test_parametrize_and_id(self) -> None:
def func(x, y):
pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x", [1, 2], ids=["basic", "advanced"])
metafunc.parametrize("y", ["abc", "def"])
ids = [x.id for x in metafunc._calls]
assert ids == ["basic-abc", "basic-def", "advanced-abc", "advanced-def"]
def test_parametrize_and_id_unicode(self) -> None:
"""Allow unicode strings for "ids" parameter in Python 2 (##1905)"""
def func(x):
pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x", [1, 2], ids=["basic", "advanced"])
ids = [x.id for x in metafunc._calls]
assert ids == ["basic", "advanced"]
def test_parametrize_with_wrong_number_of_ids(self) -> None:
def func(x, y):
pass
metafunc = self.Metafunc(func)
with pytest.raises(fail.Exception):
metafunc.parametrize("x", [1, 2], ids=["basic"])
with pytest.raises(fail.Exception):
metafunc.parametrize(
("x", "y"), [("abc", "def"), ("ghi", "jkl")], ids=["one"]
)
def test_parametrize_ids_iterator_without_mark(self) -> None:
def func(x, y):
pass
it = itertools.count()
metafunc = self.Metafunc(func)
metafunc.parametrize("x", [1, 2], ids=it)
metafunc.parametrize("y", [3, 4], ids=it)
ids = [x.id for x in metafunc._calls]
assert ids == ["0-2", "0-3", "1-2", "1-3"]
metafunc = self.Metafunc(func)
metafunc.parametrize("x", [1, 2], ids=it)
metafunc.parametrize("y", [3, 4], ids=it)
ids = [x.id for x in metafunc._calls]
assert ids == ["4-6", "4-7", "5-6", "5-7"]
def test_parametrize_empty_list(self) -> None:
"""#510"""
def func(y):
pass
class MockConfig:
def getini(self, name):
return ""
@property
def hook(self):
return self
def pytest_make_parametrize_id(self, **kw):
pass
metafunc = self.Metafunc(func, MockConfig())
metafunc.parametrize("y", [])
assert "skip" == metafunc._calls[0].marks[0].name
def test_parametrize_with_userobjects(self) -> None:
def func(x, y):
pass
metafunc = self.Metafunc(func)
class A:
pass
metafunc.parametrize("x", [A(), A()])
metafunc.parametrize("y", list("ab"))
assert metafunc._calls[0].id == "x0-a"
assert metafunc._calls[1].id == "x0-b"
assert metafunc._calls[2].id == "x1-a"
assert metafunc._calls[3].id == "x1-b"
@hypothesis.given(strategies.text() | strategies.binary())
@hypothesis.settings(
deadline=400.0
) # very close to std deadline and CI boxes are not reliable in CPU power
def test_idval_hypothesis(self, value) -> None:
escaped = _idval(value, "a", 6, None, nodeid=None, config=None)
assert isinstance(escaped, str)
escaped.encode("ascii")
def test_unicode_idval(self) -> None:
"""Test that Unicode strings outside the ASCII character set get
escaped, using byte escapes if they're in that range or unicode
escapes if they're not.
"""
values = [
("", r""),
("ascii", r"ascii"),
("ação", r"a\xe7\xe3o"),
("josé@blah.com", r"jos\xe9@blah.com"),
(
r"δοκ.ιμή@παράδειγμα.δοκιμή",
r"\u03b4\u03bf\u03ba.\u03b9\u03bc\u03ae@\u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3"
r"\u03bc\u03b1.\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae",
),
]
for val, expected in values:
assert _idval(val, "a", 6, None, nodeid=None, config=None) == expected
def test_unicode_idval_with_config(self) -> None:
"""Unit test for expected behavior to obtain ids with
disable_test_id_escaping_and_forfeit_all_rights_to_community_support
option (#5294)."""
class MockConfig:
def __init__(self, config):
self.config = config
@property
def hook(self):
return self
def pytest_make_parametrize_id(self, **kw):
pass
def getini(self, name):
return self.config[name]
option = "disable_test_id_escaping_and_forfeit_all_rights_to_community_support"
values: List[Tuple[str, Any, str]] = [
("ação", MockConfig({option: True}), "ação"),
("ação", MockConfig({option: False}), "a\\xe7\\xe3o"),
]
for val, config, expected in values:
actual = _idval(val, "a", 6, None, nodeid=None, config=config)
assert actual == expected
def test_bytes_idval(self) -> None:
"""Unit test for the expected behavior to obtain ids for parametrized
bytes values: bytes objects are always escaped using "binary escape"."""
values = [
(b"", r""),
(b"\xc3\xb4\xff\xe4", r"\xc3\xb4\xff\xe4"),
(b"ascii", r"ascii"),
("αρά".encode(), r"\xce\xb1\xcf\x81\xce\xac"),
]
for val, expected in values:
assert _idval(val, "a", 6, idfn=None, nodeid=None, config=None) == expected
def test_class_or_function_idval(self) -> None:
"""Unit test for the expected behavior to obtain ids for parametrized
values that are classes or functions: their __name__."""
class TestClass:
pass
def test_function():
pass
values = [(TestClass, "TestClass"), (test_function, "test_function")]
for val, expected in values:
assert _idval(val, "a", 6, None, nodeid=None, config=None) == expected
def test_notset_idval(self) -> None:
"""Test that a NOTSET value (used by an empty parameterset) generates
a proper ID.
Regression test for #7686.
"""
assert _idval(NOTSET, "a", 0, None, nodeid=None, config=None) == "a0"
def test_idmaker_autoname(self) -> None:
"""#250"""
result = idmaker(
("a", "b"), [pytest.param("string", 1.0), pytest.param("st-ring", 2.0)]
)
assert result == ["string-1.0", "st-ring-2.0"]
result = idmaker(
("a", "b"), [pytest.param(object(), 1.0), pytest.param(object(), object())]
)
assert result == ["a0-1.0", "a1-b1"]
# unicode mixing, issue250
result = idmaker(("a", "b"), [pytest.param({}, b"\xc3\xb4")])
assert result == ["a0-\\xc3\\xb4"]
def test_idmaker_with_bytes_regex(self) -> None:
result = idmaker(("a"), [pytest.param(re.compile(b"foo"), 1.0)])
assert result == ["foo"]
def test_idmaker_native_strings(self) -> None:
result = idmaker(
("a", "b"),
[
pytest.param(1.0, -1.1),
pytest.param(2, -202),
pytest.param("three", "three hundred"),
pytest.param(True, False),
pytest.param(None, None),
pytest.param(re.compile("foo"), re.compile("bar")),
pytest.param(str, int),
pytest.param(list("six"), [66, 66]),
pytest.param({7}, set("seven")),
pytest.param(tuple("eight"), (8, -8, 8)),
pytest.param(b"\xc3\xb4", b"name"),
pytest.param(b"\xc3\xb4", "other"),
pytest.param(1.0j, -2.0j),
],
)
assert result == [
"1.0--1.1",
"2--202",
"three-three hundred",
"True-False",
"None-None",
"foo-bar",
"str-int",
"a7-b7",
"a8-b8",
"a9-b9",
"\\xc3\\xb4-name",
"\\xc3\\xb4-other",
"1j-(-0-2j)",
]
def test_idmaker_non_printable_characters(self) -> None:
result = idmaker(
("s", "n"),
[
pytest.param("\x00", 1),
pytest.param("\x05", 2),
pytest.param(b"\x00", 3),
pytest.param(b"\x05", 4),
pytest.param("\t", 5),
pytest.param(b"\t", 6),
],
)
assert result == ["\\x00-1", "\\x05-2", "\\x00-3", "\\x05-4", "\\t-5", "\\t-6"]
def test_idmaker_manual_ids_must_be_printable(self) -> None:
result = idmaker(
("s",),
[
pytest.param("x00", id="hello \x00"),
pytest.param("x05", id="hello \x05"),
],
)
assert result == ["hello \\x00", "hello \\x05"]
def test_idmaker_enum(self) -> None:
enum = pytest.importorskip("enum")
e = enum.Enum("Foo", "one, two")
result = idmaker(("a", "b"), [pytest.param(e.one, e.two)])
assert result == ["Foo.one-Foo.two"]
def test_idmaker_idfn(self) -> None:
"""#351"""
def ids(val: object) -> Optional[str]:
if isinstance(val, Exception):
return repr(val)
return None
result = idmaker(
("a", "b"),
[
pytest.param(10.0, IndexError()),
pytest.param(20, KeyError()),
pytest.param("three", [1, 2, 3]),
],
idfn=ids,
)
assert result == ["10.0-IndexError()", "20-KeyError()", "three-b2"]
def test_idmaker_idfn_unique_names(self) -> None:
"""#351"""
def ids(val: object) -> str:
return "a"
result = idmaker(
("a", "b"),
[
pytest.param(10.0, IndexError()),
pytest.param(20, KeyError()),
pytest.param("three", [1, 2, 3]),
],
idfn=ids,
)
assert result == ["a-a0", "a-a1", "a-a2"]
def test_idmaker_with_idfn_and_config(self) -> None:
"""Unit test for expected behavior to create ids with idfn and
disable_test_id_escaping_and_forfeit_all_rights_to_community_support
option (#5294).
"""
class MockConfig:
def __init__(self, config):
self.config = config
@property
def hook(self):
return self
def pytest_make_parametrize_id(self, **kw):
pass
def getini(self, name):
return self.config[name]
option = "disable_test_id_escaping_and_forfeit_all_rights_to_community_support"
values: List[Tuple[Any, str]] = [
(MockConfig({option: True}), "ação"),
(MockConfig({option: False}), "a\\xe7\\xe3o"),
]
for config, expected in values:
result = idmaker(
("a",),
[pytest.param("string")],
idfn=lambda _: "ação",
config=config,
)
assert result == [expected]
def test_idmaker_with_ids_and_config(self) -> None:
"""Unit test for expected behavior to create ids with ids and
disable_test_id_escaping_and_forfeit_all_rights_to_community_support
option (#5294).
"""
class MockConfig:
def __init__(self, config):
self.config = config
@property
def hook(self):
return self
def pytest_make_parametrize_id(self, **kw):
pass
def getini(self, name):
return self.config[name]
option = "disable_test_id_escaping_and_forfeit_all_rights_to_community_support"
values: List[Tuple[Any, str]] = [
(MockConfig({option: True}), "ação"),
(MockConfig({option: False}), "a\\xe7\\xe3o"),
]
for config, expected in values:
result = idmaker(
("a",),
[pytest.param("string")],
ids=["ação"],
config=config,
)
assert result == [expected]
def test_parametrize_ids_exception(self, pytester: Pytester) -> None:
"""
:param pytester: the instance of Pytester class, a temporary
test directory.
"""
pytester.makepyfile(
"""
import pytest
def ids(arg):
raise Exception("bad ids")
@pytest.mark.parametrize("arg", ["a", "b"], ids=ids)
def test_foo(arg):
pass
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(
[
"*Exception: bad ids",
"*test_foo: error raised while trying to determine id of parameter 'arg' at position 0",
]
)
def test_parametrize_ids_returns_non_string(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""\
import pytest
def ids(d):
return d
@pytest.mark.parametrize("arg", ({1: 2}, {3, 4}), ids=ids)
def test(arg):
assert arg
@pytest.mark.parametrize("arg", (1, 2.0, True), ids=ids)
def test_int(arg):
assert arg
"""
)
result = pytester.runpytest("-vv", "-s")
result.stdout.fnmatch_lines(
[
"test_parametrize_ids_returns_non_string.py::test[arg0] PASSED",
"test_parametrize_ids_returns_non_string.py::test[arg1] PASSED",
"test_parametrize_ids_returns_non_string.py::test_int[1] PASSED",
"test_parametrize_ids_returns_non_string.py::test_int[2.0] PASSED",
"test_parametrize_ids_returns_non_string.py::test_int[True] PASSED",
]
)
def test_idmaker_with_ids(self) -> None:
result = idmaker(
("a", "b"), [pytest.param(1, 2), pytest.param(3, 4)], ids=["a", None]
)
assert result == ["a", "3-4"]
def test_idmaker_with_paramset_id(self) -> None:
result = idmaker(
("a", "b"),
[pytest.param(1, 2, id="me"), pytest.param(3, 4, id="you")],
ids=["a", None],
)
assert result == ["me", "you"]
def test_idmaker_with_ids_unique_names(self) -> None:
result = idmaker(
("a"), map(pytest.param, [1, 2, 3, 4, 5]), ids=["a", "a", "b", "c", "b"]
)
assert result == ["a0", "a1", "b0", "c", "b1"]
def test_parametrize_indirect(self) -> None:
"""#714"""
def func(x, y):
pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x", [1], indirect=True)
metafunc.parametrize("y", [2, 3], indirect=True)
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == {}
assert metafunc._calls[1].funcargs == {}
assert metafunc._calls[0].params == dict(x=1, y=2)
assert metafunc._calls[1].params == dict(x=1, y=3)
def test_parametrize_indirect_list(self) -> None:
"""#714"""
def func(x, y):
pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x, y", [("a", "b")], indirect=["x"])
assert metafunc._calls[0].funcargs == dict(y="b")
assert metafunc._calls[0].params == dict(x="a")
def test_parametrize_indirect_list_all(self) -> None:
"""#714"""
def func(x, y):
pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x, y", [("a", "b")], indirect=["x", "y"])
assert metafunc._calls[0].funcargs == {}
assert metafunc._calls[0].params == dict(x="a", y="b")
def test_parametrize_indirect_list_empty(self) -> None:
"""#714"""
def func(x, y):
pass
metafunc = self.Metafunc(func)
metafunc.parametrize("x, y", [("a", "b")], indirect=[])
assert metafunc._calls[0].funcargs == dict(x="a", y="b")
assert metafunc._calls[0].params == {}
def test_parametrize_indirect_wrong_type(self) -> None:
def func(x, y):
pass
metafunc = self.Metafunc(func)
with pytest.raises(
fail.Exception,
match="In func: expected Sequence or boolean for indirect, got dict",
):
metafunc.parametrize("x, y", [("a", "b")], indirect={}) # type: ignore[arg-type]
def test_parametrize_indirect_list_functional(self, pytester: Pytester) -> None:
"""
#714
Test parametrization with 'indirect' parameter applied on
particular arguments. As y is direct, its value should
be used directly rather than being passed to the fixture y.
:param pytester: the instance of Pytester class, a temporary
test directory.
"""
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='function')
def x(request):
return request.param * 3
@pytest.fixture(scope='function')
def y(request):
return request.param * 2
@pytest.mark.parametrize('x, y', [('a', 'b')], indirect=['x'])
def test_simple(x,y):
assert len(x) == 3
assert len(y) == 1
"""
)
result = pytester.runpytest("-v")
result.stdout.fnmatch_lines(["*test_simple*a-b*", "*1 passed*"])
def test_parametrize_indirect_list_error(self) -> None:
"""#714"""
def func(x, y):
pass
metafunc = self.Metafunc(func)
with pytest.raises(fail.Exception):
metafunc.parametrize("x, y", [("a", "b")], indirect=["x", "z"])
def test_parametrize_uses_no_fixture_error_indirect_false(
self, pytester: Pytester
) -> None:
"""The 'uses no fixture' error tells the user at collection time
that the parametrize data they've set up doesn't correspond to the
fixtures in their test function, rather than silently ignoring this
and letting the test potentially pass.
#714
"""
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrize('x, y', [('a', 'b')], indirect=False)
def test_simple(x):
assert len(x) == 3
"""
)
result = pytester.runpytest("--collect-only")
result.stdout.fnmatch_lines(["*uses no argument 'y'*"])
def test_parametrize_uses_no_fixture_error_indirect_true(
self, pytester: Pytester
) -> None:
"""#714"""
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='function')
def x(request):
return request.param * 3
@pytest.fixture(scope='function')
def y(request):
return request.param * 2
@pytest.mark.parametrize('x, y', [('a', 'b')], indirect=True)
def test_simple(x):
assert len(x) == 3
"""
)
result = pytester.runpytest("--collect-only")
result.stdout.fnmatch_lines(["*uses no fixture 'y'*"])
def test_parametrize_indirect_uses_no_fixture_error_indirect_string(
self, pytester: Pytester
) -> None:
"""#714"""
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='function')
def x(request):
return request.param * 3
@pytest.mark.parametrize('x, y', [('a', 'b')], indirect='y')
def test_simple(x):
assert len(x) == 3
"""
)
result = pytester.runpytest("--collect-only")
result.stdout.fnmatch_lines(["*uses no fixture 'y'*"])
def test_parametrize_indirect_uses_no_fixture_error_indirect_list(
self, pytester: Pytester
) -> None:
"""#714"""
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='function')
def x(request):
return request.param * 3
@pytest.mark.parametrize('x, y', [('a', 'b')], indirect=['y'])
def test_simple(x):
assert len(x) == 3
"""
)
result = pytester.runpytest("--collect-only")
result.stdout.fnmatch_lines(["*uses no fixture 'y'*"])
def test_parametrize_argument_not_in_indirect_list(
self, pytester: Pytester
) -> None:
"""#714"""
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='function')
def x(request):
return request.param * 3
@pytest.mark.parametrize('x, y', [('a', 'b')], indirect=['x'])
def test_simple(x):
assert len(x) == 3
"""
)
result = pytester.runpytest("--collect-only")
result.stdout.fnmatch_lines(["*uses no argument 'y'*"])
def test_parametrize_gives_indicative_error_on_function_with_default_argument(
self, pytester: Pytester
) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrize('x, y', [('a', 'b')])
def test_simple(x, y=1):
assert len(x) == 1
"""
)
result = pytester.runpytest("--collect-only")
result.stdout.fnmatch_lines(
["*already takes an argument 'y' with a default value"]
)
def test_parametrize_functional(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
def pytest_generate_tests(metafunc):
metafunc.parametrize('x', [1,2], indirect=True)
metafunc.parametrize('y', [2])
@pytest.fixture
def x(request):
return request.param * 10
def test_simple(x,y):
assert x in (10,20)
assert y == 2
"""
)
result = pytester.runpytest("-v")
result.stdout.fnmatch_lines(
["*test_simple*1-2*", "*test_simple*2-2*", "*2 passed*"]
)
def test_parametrize_onearg(self) -> None:
metafunc = self.Metafunc(lambda x: None)
metafunc.parametrize("x", [1, 2])
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == dict(x=1)
assert metafunc._calls[0].id == "1"
assert metafunc._calls[1].funcargs == dict(x=2)
assert metafunc._calls[1].id == "2"
def test_parametrize_onearg_indirect(self) -> None:
metafunc = self.Metafunc(lambda x: None)
metafunc.parametrize("x", [1, 2], indirect=True)
assert metafunc._calls[0].params == dict(x=1)
assert metafunc._calls[0].id == "1"
assert metafunc._calls[1].params == dict(x=2)
assert metafunc._calls[1].id == "2"
def test_parametrize_twoargs(self) -> None:
metafunc = self.Metafunc(lambda x, y: None)
metafunc.parametrize(("x", "y"), [(1, 2), (3, 4)])
assert len(metafunc._calls) == 2
assert metafunc._calls[0].funcargs == dict(x=1, y=2)
assert metafunc._calls[0].id == "1-2"
assert metafunc._calls[1].funcargs == dict(x=3, y=4)
assert metafunc._calls[1].id == "3-4"
def test_parametrize_multiple_times(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
pytestmark = pytest.mark.parametrize("x", [1,2])
def test_func(x):
assert 0, x
class TestClass(object):
pytestmark = pytest.mark.parametrize("y", [3,4])
def test_meth(self, x, y):
assert 0, x
"""
)
result = pytester.runpytest()
assert result.ret == 1
result.assert_outcomes(failed=6)
def test_parametrize_CSV(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrize("x, y,", [(1,2), (2,3)])
def test_func(x, y):
assert x+1 == y
"""
)
reprec = pytester.inline_run()
reprec.assertoutcome(passed=2)
def test_parametrize_class_scenarios(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
# same as doc/en/example/parametrize scenario example
def pytest_generate_tests(metafunc):
idlist = []
argvalues = []
for scenario in metafunc.cls.scenarios:
idlist.append(scenario[0])
items = scenario[1].items()
argnames = [x[0] for x in items]
argvalues.append(([x[1] for x in items]))
metafunc.parametrize(argnames, argvalues, ids=idlist, scope="class")
class Test(object):
scenarios = [['1', {'arg': {1: 2}, "arg2": "value2"}],
['2', {'arg':'value2', "arg2": "value2"}]]
def test_1(self, arg, arg2):
pass
def test_2(self, arg2, arg):
pass
def test_3(self, arg, arg2):
pass
"""
)
result = pytester.runpytest("-v")
assert result.ret == 0
result.stdout.fnmatch_lines(
"""
*test_1*1*
*test_2*1*
*test_3*1*
*test_1*2*
*test_2*2*
*test_3*2*
*6 passed*
"""
)
def test_format_args(self) -> None:
def function1():
pass
assert _format_args(function1) == "()"
def function2(arg1):
pass
assert _format_args(function2) == "(arg1)"
def function3(arg1, arg2="qwe"):
pass
assert _format_args(function3) == "(arg1, arg2='qwe')"
def function4(arg1, *args, **kwargs):
pass
assert _format_args(function4) == "(arg1, *args, **kwargs)"
class TestMetafuncFunctional:
def test_attributes(self, pytester: Pytester) -> None:
p = pytester.makepyfile(
"""
# assumes that generate/provide runs in the same process
import sys, pytest
def pytest_generate_tests(metafunc):
metafunc.parametrize('metafunc', [metafunc])
@pytest.fixture
def metafunc(request):
return request.param
def test_function(metafunc, pytestconfig):
assert metafunc.config == pytestconfig
assert metafunc.module.__name__ == __name__
assert metafunc.function == test_function
assert metafunc.cls is None
class TestClass(object):
def test_method(self, metafunc, pytestconfig):
assert metafunc.config == pytestconfig
assert metafunc.module.__name__ == __name__
unbound = TestClass.test_method
assert metafunc.function == unbound
assert metafunc.cls == TestClass
"""
)
result = pytester.runpytest(p, "-v")
result.assert_outcomes(passed=2)
def test_two_functions(self, pytester: Pytester) -> None:
p = pytester.makepyfile(
"""
def pytest_generate_tests(metafunc):
metafunc.parametrize('arg1', [10, 20], ids=['0', '1'])
def test_func1(arg1):
assert arg1 == 10
def test_func2(arg1):
assert arg1 in (10, 20)
"""
)
result = pytester.runpytest("-v", p)
result.stdout.fnmatch_lines(
[
"*test_func1*0*PASS*",
"*test_func1*1*FAIL*",
"*test_func2*PASS*",
"*test_func2*PASS*",
"*1 failed, 3 passed*",
]
)
def test_noself_in_method(self, pytester: Pytester) -> None:
p = pytester.makepyfile(
"""
def pytest_generate_tests(metafunc):
assert 'xyz' not in metafunc.fixturenames
class TestHello(object):
def test_hello(xyz):
pass
"""
)
result = pytester.runpytest(p)
result.assert_outcomes(passed=1)
def test_generate_tests_in_class(self, pytester: Pytester) -> None:
p = pytester.makepyfile(
"""
class TestClass(object):
def pytest_generate_tests(self, metafunc):
metafunc.parametrize('hello', ['world'], ids=['hellow'])
def test_myfunc(self, hello):
assert hello == "world"
"""
)
result = pytester.runpytest("-v", p)
result.stdout.fnmatch_lines(["*test_myfunc*hello*PASS*", "*1 passed*"])
def test_two_functions_not_same_instance(self, pytester: Pytester) -> None:
p = pytester.makepyfile(
"""
def pytest_generate_tests(metafunc):
metafunc.parametrize('arg1', [10, 20], ids=["0", "1"])
class TestClass(object):
def test_func(self, arg1):
assert not hasattr(self, 'x')
self.x = 1
"""
)
result = pytester.runpytest("-v", p)
result.stdout.fnmatch_lines(
["*test_func*0*PASS*", "*test_func*1*PASS*", "*2 pass*"]
)
def test_issue28_setup_method_in_generate_tests(self, pytester: Pytester) -> None:
p = pytester.makepyfile(
"""
def pytest_generate_tests(metafunc):
metafunc.parametrize('arg1', [1])
class TestClass(object):
def test_method(self, arg1):
assert arg1 == self.val
def setup_method(self, func):
self.val = 1
"""
)
result = pytester.runpytest(p)
result.assert_outcomes(passed=1)
def test_parametrize_functional2(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
def pytest_generate_tests(metafunc):
metafunc.parametrize("arg1", [1,2])
metafunc.parametrize("arg2", [4,5])
def test_hello(arg1, arg2):
assert 0, (arg1, arg2)
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(
["*(1, 4)*", "*(1, 5)*", "*(2, 4)*", "*(2, 5)*", "*4 failed*"]
)
def test_parametrize_and_inner_getfixturevalue(self, pytester: Pytester) -> None:
p = pytester.makepyfile(
"""
def pytest_generate_tests(metafunc):
metafunc.parametrize("arg1", [1], indirect=True)
metafunc.parametrize("arg2", [10], indirect=True)
import pytest
@pytest.fixture
def arg1(request):
x = request.getfixturevalue("arg2")
return x + request.param
@pytest.fixture
def arg2(request):
return request.param
def test_func1(arg1, arg2):
assert arg1 == 11
"""
)
result = pytester.runpytest("-v", p)
result.stdout.fnmatch_lines(["*test_func1*1*PASS*", "*1 passed*"])
def test_parametrize_on_setup_arg(self, pytester: Pytester) -> None:
p = pytester.makepyfile(
"""
def pytest_generate_tests(metafunc):
assert "arg1" in metafunc.fixturenames
metafunc.parametrize("arg1", [1], indirect=True)
import pytest
@pytest.fixture
def arg1(request):
return request.param
@pytest.fixture
def arg2(request, arg1):
return 10 * arg1
def test_func(arg2):
assert arg2 == 10
"""
)
result = pytester.runpytest("-v", p)
result.stdout.fnmatch_lines(["*test_func*1*PASS*", "*1 passed*"])
def test_parametrize_with_ids(self, pytester: Pytester) -> None:
pytester.makeini(
"""
[pytest]
console_output_style=classic
"""
)
pytester.makepyfile(
"""
import pytest
def pytest_generate_tests(metafunc):
metafunc.parametrize(("a", "b"), [(1,1), (1,2)],
ids=["basic", "advanced"])
def test_function(a, b):
assert a == b
"""
)
result = pytester.runpytest("-v")
assert result.ret == 1
result.stdout.fnmatch_lines_random(
["*test_function*basic*PASSED", "*test_function*advanced*FAILED"]
)
def test_parametrize_without_ids(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
def pytest_generate_tests(metafunc):
metafunc.parametrize(("a", "b"),
[(1,object()), (1.3,object())])
def test_function(a, b):
assert 1
"""
)
result = pytester.runpytest("-v")
result.stdout.fnmatch_lines(
"""
*test_function*1-b0*
*test_function*1.3-b1*
"""
)
def test_parametrize_with_None_in_ids(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
def pytest_generate_tests(metafunc):
metafunc.parametrize(("a", "b"), [(1,1), (1,1), (1,2)],
ids=["basic", None, "advanced"])
def test_function(a, b):
assert a == b
"""
)
result = pytester.runpytest("-v")
assert result.ret == 1
result.stdout.fnmatch_lines_random(
[
"*test_function*basic*PASSED*",
"*test_function*1-1*PASSED*",
"*test_function*advanced*FAILED*",
]
)
def test_fixture_parametrized_empty_ids(self, pytester: Pytester) -> None:
"""Fixtures parametrized with empty ids cause an internal error (#1849)."""
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope="module", ids=[], params=[])
def temp(request):
return request.param
def test_temp(temp):
pass
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(["* 1 skipped *"])
def test_parametrized_empty_ids(self, pytester: Pytester) -> None:
"""Tests parametrized with empty ids cause an internal error (#1849)."""
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrize('temp', [], ids=list())
def test_temp(temp):
pass
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(["* 1 skipped *"])
def test_parametrized_ids_invalid_type(self, pytester: Pytester) -> None:
"""Test error with non-strings/non-ints, without generator (#1857)."""
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrize("x, expected", [(1, 2), (3, 4), (5, 6)], ids=(None, 2, type))
def test_ids_numbers(x,expected):
assert x * 2 == expected
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(
[
"In test_ids_numbers: ids must be list of string/float/int/bool,"
" found: <class 'type'> (type: <class 'type'>) at index 2"
]
)
def test_parametrize_with_identical_ids_get_unique_names(
self, pytester: Pytester
) -> None:
pytester.makepyfile(
"""
import pytest
def pytest_generate_tests(metafunc):
metafunc.parametrize(("a", "b"), [(1,1), (1,2)],
ids=["a", "a"])
def test_function(a, b):
assert a == b
"""
)
result = pytester.runpytest("-v")
assert result.ret == 1
result.stdout.fnmatch_lines_random(
["*test_function*a0*PASSED*", "*test_function*a1*FAILED*"]
)
@pytest.mark.parametrize(("scope", "length"), [("module", 2), ("function", 4)])
def test_parametrize_scope_overrides(
self, pytester: Pytester, scope: str, length: int
) -> None:
pytester.makepyfile(
"""
import pytest
values = []
def pytest_generate_tests(metafunc):
if "arg" in metafunc.fixturenames:
metafunc.parametrize("arg", [1,2], indirect=True,
scope=%r)
@pytest.fixture
def arg(request):
values.append(request.param)
return request.param
def test_hello(arg):
assert arg in (1,2)
def test_world(arg):
assert arg in (1,2)
def test_checklength():
assert len(values) == %d
"""
% (scope, length)
)
reprec = pytester.inline_run()
reprec.assertoutcome(passed=5)
def test_parametrize_issue323(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='module', params=range(966))
def foo(request):
return request.param
def test_it(foo):
pass
def test_it2(foo):
pass
"""
)
reprec = pytester.inline_run("--collect-only")
assert not reprec.getcalls("pytest_internalerror")
def test_usefixtures_seen_in_generate_tests(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
def pytest_generate_tests(metafunc):
assert "abc" in metafunc.fixturenames
metafunc.parametrize("abc", [1])
@pytest.mark.usefixtures("abc")
def test_function():
pass
"""
)
reprec = pytester.runpytest()
reprec.assert_outcomes(passed=1)
def test_generate_tests_only_done_in_subdir(self, pytester: Pytester) -> None:
sub1 = pytester.mkpydir("sub1")
sub2 = pytester.mkpydir("sub2")
sub1.joinpath("conftest.py").write_text(
textwrap.dedent(
"""\
def pytest_generate_tests(metafunc):
assert metafunc.function.__name__ == "test_1"
"""
)
)
sub2.joinpath("conftest.py").write_text(
textwrap.dedent(
"""\
def pytest_generate_tests(metafunc):
assert metafunc.function.__name__ == "test_2"
"""
)
)
sub1.joinpath("test_in_sub1.py").write_text("def test_1(): pass")
sub2.joinpath("test_in_sub2.py").write_text("def test_2(): pass")
result = pytester.runpytest("--keep-duplicates", "-v", "-s", sub1, sub2, sub1)
result.assert_outcomes(passed=3)
def test_generate_same_function_names_issue403(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
def make_tests():
@pytest.mark.parametrize("x", range(2))
def test_foo(x):
pass
return test_foo
test_x = make_tests()
test_y = make_tests()
"""
)
reprec = pytester.runpytest()
reprec.assert_outcomes(passed=4)
def test_parametrize_misspelling(self, pytester: Pytester) -> None:
"""#463"""
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrise("x", range(2))
def test_foo(x):
pass
"""
)
result = pytester.runpytest("--collectonly")
result.stdout.fnmatch_lines(
[
"collected 0 items / 1 error",
"",
"*= ERRORS =*",
"*_ ERROR collecting test_parametrize_misspelling.py _*",
"test_parametrize_misspelling.py:3: in <module>",
' @pytest.mark.parametrise("x", range(2))',
"E Failed: Unknown 'parametrise' mark, did you mean 'parametrize'?",
"*! Interrupted: 1 error during collection !*",
"*= no tests collected, 1 error in *",
]
)
class TestMetafuncFunctionalAuto:
"""Tests related to automatically find out the correct scope for
parametrized tests (#1832)."""
def test_parametrize_auto_scope(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='session', autouse=True)
def fixture():
return 1
@pytest.mark.parametrize('animal', ["dog", "cat"])
def test_1(animal):
assert animal in ('dog', 'cat')
@pytest.mark.parametrize('animal', ['fish'])
def test_2(animal):
assert animal == 'fish'
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(["* 3 passed *"])
def test_parametrize_auto_scope_indirect(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='session')
def echo(request):
return request.param
@pytest.mark.parametrize('animal, echo', [("dog", 1), ("cat", 2)], indirect=['echo'])
def test_1(animal, echo):
assert animal in ('dog', 'cat')
assert echo in (1, 2, 3)
@pytest.mark.parametrize('animal, echo', [('fish', 3)], indirect=['echo'])
def test_2(animal, echo):
assert animal == 'fish'
assert echo in (1, 2, 3)
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(["* 3 passed *"])
def test_parametrize_auto_scope_override_fixture(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='session', autouse=True)
def animal():
return 'fox'
@pytest.mark.parametrize('animal', ["dog", "cat"])
def test_1(animal):
assert animal in ('dog', 'cat')
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(["* 2 passed *"])
def test_parametrize_all_indirects(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.fixture()
def animal(request):
return request.param
@pytest.fixture(scope='session')
def echo(request):
return request.param
@pytest.mark.parametrize('animal, echo', [("dog", 1), ("cat", 2)], indirect=True)
def test_1(animal, echo):
assert animal in ('dog', 'cat')
assert echo in (1, 2, 3)
@pytest.mark.parametrize('animal, echo', [("fish", 3)], indirect=True)
def test_2(animal, echo):
assert animal == 'fish'
assert echo in (1, 2, 3)
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines(["* 3 passed *"])
def test_parametrize_some_arguments_auto_scope(
self, pytester: Pytester, monkeypatch
) -> None:
"""Integration test for (#3941)"""
class_fix_setup: List[object] = []
monkeypatch.setattr(sys, "class_fix_setup", class_fix_setup, raising=False)
func_fix_setup: List[object] = []
monkeypatch.setattr(sys, "func_fix_setup", func_fix_setup, raising=False)
pytester.makepyfile(
"""
import pytest
import sys
@pytest.fixture(scope='class', autouse=True)
def class_fix(request):
sys.class_fix_setup.append(request.param)
@pytest.fixture(autouse=True)
def func_fix():
sys.func_fix_setup.append(True)
@pytest.mark.parametrize('class_fix', [10, 20], indirect=True)
class Test:
def test_foo(self):
pass
def test_bar(self):
pass
"""
)
result = pytester.runpytest_inprocess()
result.stdout.fnmatch_lines(["* 4 passed in *"])
assert func_fix_setup == [True] * 4
assert class_fix_setup == [10, 20]
def test_parametrize_issue634(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.fixture(scope='module')
def foo(request):
print('preparing foo-%d' % request.param)
return 'foo-%d' % request.param
def test_one(foo):
pass
def test_two(foo):
pass
test_two.test_with = (2, 3)
def pytest_generate_tests(metafunc):
params = (1, 2, 3, 4)
if not 'foo' in metafunc.fixturenames:
return
test_with = getattr(metafunc.function, 'test_with', None)
if test_with:
params = test_with
metafunc.parametrize('foo', params, indirect=True)
"""
)
result = pytester.runpytest("-s")
output = result.stdout.str()
assert output.count("preparing foo-2") == 1
assert output.count("preparing foo-3") == 1
class TestMarkersWithParametrization:
"""#308"""
def test_simple_mark(self, pytester: Pytester) -> None:
s = """
import pytest
@pytest.mark.foo
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.param(1, 3, marks=pytest.mark.bar),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
items = pytester.getitems(s)
assert len(items) == 3
for item in items:
assert "foo" in item.keywords
assert "bar" not in items[0].keywords
assert "bar" in items[1].keywords
assert "bar" not in items[2].keywords
def test_select_based_on_mark(self, pytester: Pytester) -> None:
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.param(2, 3, marks=pytest.mark.foo),
(3, 4),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
pytester.makepyfile(s)
rec = pytester.inline_run("-m", "foo")
passed, skipped, fail = rec.listoutcomes()
assert len(passed) == 1
assert len(skipped) == 0
assert len(fail) == 0
def test_simple_xfail(self, pytester: Pytester) -> None:
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.param(1, 3, marks=pytest.mark.xfail),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
pytester.makepyfile(s)
reprec = pytester.inline_run()
# xfail is skip??
reprec.assertoutcome(passed=2, skipped=1)
def test_simple_xfail_single_argname(self, pytester: Pytester) -> None:
s = """
import pytest
@pytest.mark.parametrize("n", [
2,
pytest.param(3, marks=pytest.mark.xfail),
4,
])
def test_isEven(n):
assert n % 2 == 0
"""
pytester.makepyfile(s)
reprec = pytester.inline_run()
reprec.assertoutcome(passed=2, skipped=1)
def test_xfail_with_arg(self, pytester: Pytester) -> None:
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.param(1, 3, marks=pytest.mark.xfail("True")),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
pytester.makepyfile(s)
reprec = pytester.inline_run()
reprec.assertoutcome(passed=2, skipped=1)
def test_xfail_with_kwarg(self, pytester: Pytester) -> None:
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.param(1, 3, marks=pytest.mark.xfail(reason="some bug")),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
pytester.makepyfile(s)
reprec = pytester.inline_run()
reprec.assertoutcome(passed=2, skipped=1)
def test_xfail_with_arg_and_kwarg(self, pytester: Pytester) -> None:
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.param(1, 3, marks=pytest.mark.xfail("True", reason="some bug")),
(2, 3),
])
def test_increment(n, expected):
assert n + 1 == expected
"""
pytester.makepyfile(s)
reprec = pytester.inline_run()
reprec.assertoutcome(passed=2, skipped=1)
@pytest.mark.parametrize("strict", [True, False])
def test_xfail_passing_is_xpass(self, pytester: Pytester, strict: bool) -> None:
s = """
import pytest
m = pytest.mark.xfail("sys.version_info > (0, 0, 0)", reason="some bug", strict={strict})
@pytest.mark.parametrize(("n", "expected"), [
(1, 2),
pytest.param(2, 3, marks=m),
(3, 4),
])
def test_increment(n, expected):
assert n + 1 == expected
""".format(
strict=strict
)
pytester.makepyfile(s)
reprec = pytester.inline_run()
passed, failed = (2, 1) if strict else (3, 0)
reprec.assertoutcome(passed=passed, failed=failed)
def test_parametrize_called_in_generate_tests(self, pytester: Pytester) -> None:
s = """
import pytest
def pytest_generate_tests(metafunc):
passingTestData = [(1, 2),
(2, 3)]
failingTestData = [(1, 3),
(2, 2)]
testData = passingTestData + [pytest.param(*d, marks=pytest.mark.xfail)
for d in failingTestData]
metafunc.parametrize(("n", "expected"), testData)
def test_increment(n, expected):
assert n + 1 == expected
"""
pytester.makepyfile(s)
reprec = pytester.inline_run()
reprec.assertoutcome(passed=2, skipped=2)
def test_parametrize_ID_generation_string_int_works(
self, pytester: Pytester
) -> None:
"""#290"""
pytester.makepyfile(
"""
import pytest
@pytest.fixture
def myfixture():
return 'example'
@pytest.mark.parametrize(
'limit', (0, '0'))
def test_limit(limit, myfixture):
return
"""
)
reprec = pytester.inline_run()
reprec.assertoutcome(passed=2)
@pytest.mark.parametrize("strict", [True, False])
def test_parametrize_marked_value(self, pytester: Pytester, strict: bool) -> None:
s = """
import pytest
@pytest.mark.parametrize(("n", "expected"), [
pytest.param(
2,3,
marks=pytest.mark.xfail("sys.version_info > (0, 0, 0)", reason="some bug", strict={strict}),
),
pytest.param(
2,3,
marks=[pytest.mark.xfail("sys.version_info > (0, 0, 0)", reason="some bug", strict={strict})],
),
])
def test_increment(n, expected):
assert n + 1 == expected
""".format(
strict=strict
)
pytester.makepyfile(s)
reprec = pytester.inline_run()
passed, failed = (0, 2) if strict else (2, 0)
reprec.assertoutcome(passed=passed, failed=failed)
def test_pytest_make_parametrize_id(self, pytester: Pytester) -> None:
pytester.makeconftest(
"""
def pytest_make_parametrize_id(config, val):
return str(val * 2)
"""
)
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrize("x", range(2))
def test_func(x):
pass
"""
)
result = pytester.runpytest("-v")
result.stdout.fnmatch_lines(["*test_func*0*PASS*", "*test_func*2*PASS*"])
def test_pytest_make_parametrize_id_with_argname(self, pytester: Pytester) -> None:
pytester.makeconftest(
"""
def pytest_make_parametrize_id(config, val, argname):
return str(val * 2 if argname == 'x' else val * 10)
"""
)
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrize("x", range(2))
def test_func_a(x):
pass
@pytest.mark.parametrize("y", [1])
def test_func_b(y):
pass
"""
)
result = pytester.runpytest("-v")
result.stdout.fnmatch_lines(
["*test_func_a*0*PASS*", "*test_func_a*2*PASS*", "*test_func_b*10*PASS*"]
)
def test_parametrize_positional_args(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import pytest
@pytest.mark.parametrize("a", [1], False)
def test_foo(a):
pass
"""
)
result = pytester.runpytest()
result.assert_outcomes(passed=1)
def test_parametrize_iterator(self, pytester: Pytester) -> None:
pytester.makepyfile(
"""
import itertools
import pytest
id_parametrize = pytest.mark.parametrize(
ids=("param%d" % i for i in itertools.count())
)
@id_parametrize('y', ['a', 'b'])
def test1(y):
pass
@id_parametrize('y', ['a', 'b'])
def test2(y):
pass
@pytest.mark.parametrize("a, b", [(1, 2), (3, 4)], ids=itertools.count())
def test_converted_to_str(a, b):
pass
"""
)
result = pytester.runpytest("-vv", "-s")
result.stdout.fnmatch_lines(
[
"test_parametrize_iterator.py::test1[param0] PASSED",
"test_parametrize_iterator.py::test1[param1] PASSED",
"test_parametrize_iterator.py::test2[param0] PASSED",
"test_parametrize_iterator.py::test2[param1] PASSED",
"test_parametrize_iterator.py::test_converted_to_str[0] PASSED",
"test_parametrize_iterator.py::test_converted_to_str[1] PASSED",
"*= 6 passed in *",
]
)