test_ok2/testing/python/raises.py

72 lines
2.3 KiB
Python

import pytest
class TestRaises:
def test_raises(self):
source = "int('qwe')"
excinfo = pytest.raises(ValueError, source)
code = excinfo.traceback[-1].frame.code
s = str(code.fullsource)
assert s == source
def test_raises_exec(self):
pytest.raises(ValueError, "a,x = []")
def test_raises_syntax_error(self):
pytest.raises(SyntaxError, "qwe qwe qwe")
def test_raises_function(self):
pytest.raises(ValueError, int, 'hello')
def test_raises_callable_no_exception(self):
class A:
def __call__(self):
pass
try:
pytest.raises(ValueError, A())
except pytest.raises.Exception:
pass
def test_raises_flip_builtin_AssertionError(self):
# we replace AssertionError on python level
# however c code might still raise the builtin one
from _pytest.assertion.util import BuiltinAssertionError # noqa
pytest.raises(AssertionError,"""
raise BuiltinAssertionError
""")
def test_raises_as_contextmanager(self, testdir):
testdir.makepyfile("""
from __future__ import with_statement
import py, pytest
def test_simple():
with pytest.raises(ZeroDivisionError) as excinfo:
assert isinstance(excinfo, py.code.ExceptionInfo)
1/0
print (excinfo)
assert excinfo.type == ZeroDivisionError
assert isinstance(excinfo.value, ZeroDivisionError)
def test_noraise():
with pytest.raises(pytest.raises.Exception):
with pytest.raises(ValueError):
int()
def test_raise_wrong_exception_passes_by():
with pytest.raises(ZeroDivisionError):
with pytest.raises(ValueError):
1/0
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines([
'*3 passed*',
])
def test_noclass(self):
with pytest.raises(TypeError):
pytest.raises('wrong', lambda: None)
def test_tuple(self):
with pytest.raises((KeyError, ValueError)):
raise KeyError('oops')