test_ok2/testing/test_nodes.py

114 lines
3.3 KiB
Python

from typing import List
from typing import Type
import py
import pytest
from _pytest import nodes
from _pytest.pytester import Pytester
from _pytest.warning_types import PytestWarning
@pytest.mark.parametrize(
("nodeid", "expected"),
(
("", [""]),
("a", ["", "a"]),
("aa/b", ["", "aa", "aa/b"]),
("a/b/c", ["", "a", "a/b", "a/b/c"]),
("a/bbb/c::D", ["", "a", "a/bbb", "a/bbb/c", "a/bbb/c::D"]),
("a/b/c::D::eee", ["", "a", "a/b", "a/b/c", "a/b/c::D", "a/b/c::D::eee"]),
# :: considered only at the last component.
("::xx", ["", "::xx"]),
("a/b/c::D/d::e", ["", "a", "a/b", "a/b/c::D", "a/b/c::D/d", "a/b/c::D/d::e"]),
# : alone is not a separator.
("a/b::D:e:f::g", ["", "a", "a/b", "a/b::D:e:f", "a/b::D:e:f::g"]),
),
)
def test_iterparentnodeids(nodeid: str, expected: List[str]) -> None:
result = list(nodes.iterparentnodeids(nodeid))
assert result == expected
def test_node_from_parent_disallowed_arguments() -> None:
with pytest.raises(TypeError, match="session is"):
nodes.Node.from_parent(None, session=None) # type: ignore[arg-type]
with pytest.raises(TypeError, match="config is"):
nodes.Node.from_parent(None, config=None) # type: ignore[arg-type]
@pytest.mark.parametrize(
"warn_type, msg", [(DeprecationWarning, "deprecated"), (PytestWarning, "pytest")]
)
def test_node_warn_is_no_longer_only_pytest_warnings(
pytester: Pytester, warn_type: Type[Warning], msg: str
) -> None:
items = pytester.getitems(
"""
def test():
pass
"""
)
with pytest.warns(warn_type, match=msg):
items[0].warn(warn_type(msg))
def test_node_warning_enforces_warning_types(pytester: Pytester) -> None:
items = pytester.getitems(
"""
def test():
pass
"""
)
with pytest.raises(
ValueError, match="warning must be an instance of Warning or subclass"
):
items[0].warn(Exception("ok")) # type: ignore[arg-type]
def test__check_initialpaths_for_relpath() -> None:
"""Ensure that it handles dirs, and does not always use dirname."""
cwd = py.path.local()
class FakeSession1:
_initialpaths = [cwd]
assert nodes._check_initialpaths_for_relpath(FakeSession1, cwd) == ""
sub = cwd.join("file")
class FakeSession2:
_initialpaths = [cwd]
assert nodes._check_initialpaths_for_relpath(FakeSession2, sub) == "file"
outside = py.path.local("/outside")
assert nodes._check_initialpaths_for_relpath(FakeSession2, outside) is None
def test_failure_with_changed_cwd(pytester: Pytester) -> None:
"""
Test failure lines should use absolute paths if cwd has changed since
invocation, so the path is correct (#6428).
"""
p = pytester.makepyfile(
"""
import os
import pytest
@pytest.fixture
def private_dir():
out_dir = 'ddd'
os.mkdir(out_dir)
old_dir = os.getcwd()
os.chdir(out_dir)
yield out_dir
os.chdir(old_dir)
def test_show_wrong_path(private_dir):
assert False
"""
)
result = pytester.runpytest()
result.stdout.fnmatch_lines([str(p) + ":*: AssertionError", "*1 failed in *"])