def test_upgrade_does_not_change_other_errors(self):
error_type = factory.make_exception_type()
error = error_type()
self.expectThat(error, Not(IsInstance(ExternalProcessError)))
ExternalProcessError.upgrade(error)
self.expectThat(error, Not(IsInstance(ExternalProcessError)))
self.expectThat(error.__class__, Is(error_type))
def test_upgrade_does_not_change_CalledProcessError_subclasses(self):
error_type = factory.make_exception_type(bases=(CalledProcessError,))
error = factory.make_CalledProcessError()
error.__class__ = error_type # Change the class.
self.expectThat(error, Not(IsInstance(ExternalProcessError)))
ExternalProcessError.upgrade(error)
self.expectThat(error, Not(IsInstance(ExternalProcessError)))
self.expectThat(error.__class__, Is(error_type))
def bind_reconfigure():
"""Ask BIND to reload its configuration and *new* zone files.
From rndc(8):
Reload the configuration file and load new zones, but do not reload
existing zone files even if they have changed. This is faster than a
full reload when there is a large number of zones because it avoids the
need to examine the modification times of the zones files.
"""
try:
execute_rndc_command(("reconfig", ))
except CalledProcessError as exc:
maaslog.error("Reloading BIND configuration failed: %s", exc)
# Log before upgrade so that the output does not go to maaslog.
ExternalProcessError.upgrade(exc)
raise
def test_upgrade_upgrades_CalledProcessError(self):
error = factory.make_CalledProcessError()
self.expectThat(error, Not(IsInstance(ExternalProcessError)))
ExternalProcessError.upgrade(error)
self.expectThat(error, IsInstance(ExternalProcessError))
def test_upgrade_returns_None(self):
self.expectThat(
ExternalProcessError.upgrade(factory.make_exception()), Is(None)
)