def test_missingSource(self):
"""
Warnings emitted by a function the source code of which is not
available can still be flushed.
"""
package = FilePath(self.mktemp().encode("utf-8")).child(
b"twisted_private_helper"
)
package.makedirs()
package.child(b"__init__.py").setContent(b"")
package.child(b"missingsourcefile.py").setContent(
b"""
import warnings
def foo():
warnings.warn("oh no")
"""
)
pathEntry = package.parent().path.decode("utf-8")
sys.path.insert(0, pathEntry)
self.addCleanup(sys.path.remove, pathEntry)
from twisted_private_helper import missingsourcefile # type: ignore[import]
self.addCleanup(sys.modules.pop, "twisted_private_helper")
self.addCleanup(sys.modules.pop, missingsourcefile.__name__)
package.child(b"missingsourcefile.py").remove()
missingsourcefile.foo()
self.assertEqual(len(self.flushWarnings([missingsourcefile.foo])), 1)
def test_missingSource(self):
"""
If a function the source of which is not available is including in the
C{offendingFunctions} list, L{TestCase.flushWarnings} raises
L{IOError}. Such a call flushes no warnings.
"""
package = FilePath(self.mktemp()).child('twisted_private_helper')
package.makedirs()
package.child('__init__.py').setContent('')
package.child('missingsourcefile.py').setContent('''
import warnings
def foo():
warnings.warn("oh no")
''')
sys.path.insert(0, package.parent().path)
self.addCleanup(sys.path.remove, package.parent().path)
from twisted_private_helper import missingsourcefile
self.addCleanup(sys.modules.pop, 'twisted_private_helper')
self.addCleanup(sys.modules.pop, missingsourcefile.__name__)
package.child('missingsourcefile.py').remove()
missingsourcefile.foo()
self.assertRaises(
IOError, self.flushWarnings, [missingsourcefile.foo])
self.assertEqual(len(self.flushWarnings()), 1)
def test_missingSource(self):
"""
Warnings emitted by a function the source code of which is not
available can still be flushed.
"""
package = FilePath(self.mktemp()).child('twisted_private_helper')
package.makedirs()
package.child('__init__.py').setContent('')
package.child('missingsourcefile.py').setContent('''
import warnings
def foo():
warnings.warn("oh no")
''')
sys.path.insert(0, package.parent().path)
self.addCleanup(sys.path.remove, package.parent().path)
from twisted_private_helper import missingsourcefile
self.addCleanup(sys.modules.pop, 'twisted_private_helper')
self.addCleanup(sys.modules.pop, missingsourcefile.__name__)
package.child('missingsourcefile.py').remove()
missingsourcefile.foo()
self.assertEqual(len(self.flushWarnings([missingsourcefile.foo])), 1)
def test_missingSource(self):
"""
Warnings emitted by a function the source code of which is not
available can still be flushed.
"""
package = FilePath(self.mktemp()).child('twisted_private_helper')
package.makedirs()
package.child('__init__.py').setContent('')
package.child('missingsourcefile.py').setContent('''
import warnings
def foo():
warnings.warn("oh no")
''')
sys.path.insert(0, package.parent().path)
self.addCleanup(sys.path.remove, package.parent().path)
from twisted_private_helper import missingsourcefile
self.addCleanup(sys.modules.pop, 'twisted_private_helper')
self.addCleanup(sys.modules.pop, missingsourcefile.__name__)
package.child('missingsourcefile.py').remove()
missingsourcefile.foo()
self.assertEqual(len(self.flushWarnings([missingsourcefile.foo])), 1)
def test_missingSource(self):
"""
If a function the source of which is not available is including in the
C{offendingFunctions} list, L{TestCase.flushWarnings} raises
L{IOError}. Such a call flushes no warnings.
"""
package = FilePath(self.mktemp()).child('twisted_private_helper')
package.makedirs()
package.child('__init__.py').setContent('')
package.child('missingsourcefile.py').setContent('''
import warnings
def foo():
warnings.warn("oh no")
''')
sys.path.insert(0, package.parent().path)
self.addCleanup(sys.path.remove, package.parent().path)
from twisted_private_helper import missingsourcefile
self.addCleanup(sys.modules.pop, 'twisted_private_helper')
self.addCleanup(sys.modules.pop, missingsourcefile.__name__)
package.child('missingsourcefile.py').remove()
missingsourcefile.foo()
self.assertRaises(IOError, self.flushWarnings, [missingsourcefile.foo])
self.assertEqual(len(self.flushWarnings()), 1)