def test_axiomaticCommandProvides(self):
"""
Test that AxiomaticCommand itself does not provide IAxiomaticCommand or
IPlugin, but subclasses do.
"""
self.failIf(IAxiomaticCommand.providedBy(axiomatic.AxiomaticCommand), 'IAxiomaticCommand provided')
self.failIf(IPlugin.providedBy(axiomatic.AxiomaticCommand), 'IPlugin provided')
class _TestSubClass(axiomatic.AxiomaticCommand):
pass
self.failUnless(IAxiomaticCommand.providedBy(_TestSubClass), 'IAxiomaticCommand not provided')
self.failUnless(IPlugin.providedBy(_TestSubClass), 'IPlugin not provided')
def test_axiomaticCommandProvides(self):
"""
Test that AxiomaticCommand itself does not provide IAxiomaticCommand or
IPlugin, but subclasses do.
"""
self.failIf(IAxiomaticCommand.providedBy(axiomatic.AxiomaticCommand), 'IAxiomaticCommand provided')
self.failIf(IPlugin.providedBy(axiomatic.AxiomaticCommand), 'IPlugin provided')
class _TestSubClass(axiomatic.AxiomaticCommand):
pass
self.failUnless(IAxiomaticCommand.providedBy(_TestSubClass), 'IAxiomaticCommand not provided')
self.failUnless(IPlugin.providedBy(_TestSubClass), 'IPlugin not provided')
def get_plugins(interface, package):
"""
Lazily find objects in a package which implement a given interface.
The objects must also implement ``twisted.plugin.IPlugin``.
This is a rewrite of Twisted's ``twisted.plugin.getPlugins`` which uses
Exocet instead of Twisted to find the plugins.
:param interface interface: the interface to match against
:param str package: the name of the package to search
"""
p = getModule(package)
for pm in p.iterModules():
try:
m = load(pm, bravoMapper)
for obj in vars(m).itervalues():
try:
adapted = IPlugin(obj, None)
adapted = interface(adapted, None)
except:
log.err()
else:
if adapted is not None:
yield adapted
except ImportError, ie:
log.msg(ie)
def test_providesInterfaces(self):
"""
Verify that the necessary interfaces for the object to be found as a
twistd subcommand plugin are provided.
"""
self.failUnless(IPlugin.providedBy(widgetServiceMaker))
self.failUnless(IServiceMaker.providedBy(widgetServiceMaker))
def test_plugin(self):
"""
:obj:`twisted.plugins.mimic.mimicService` is a twistd plugin
referencing `mimic.tap.makeService`.
"""
self.assertTrue(IPlugin.providedBy(mimicService))
self.assertTrue(IServiceMaker.providedBy(mimicService))
self.assertIs(mimicService.makeService, makeService)
def test_plugin(self):
"""
:obj:`twisted.plugins.mimic.mimicService` is a twistd plugin
referencing `mimic.tap.makeService`.
"""
self.assertTrue(IPlugin.providedBy(mimicService))
self.assertTrue(IServiceMaker.providedBy(mimicService))
self.assertIs(mimicService.makeService, makeService)
def test_interface(self):
self.assertTrue(IHandler.implementedBy(EventWriter))
self.assertTrue(IPlugin.implementedBy(EventWriter))
self.assertTrue(IHasOptions.implementedBy(EventWriter))
def test_interface(self):
self.assertTrue(IHandler.implementedBy(EventPrinter))
self.assertTrue(IPlugin.implementedBy(EventPrinter))
def test_interface(self):
self.assertTrue(IHandler.implementedBy(EventWriter))
self.assertTrue(IPlugin.implementedBy(EventWriter))
self.assertTrue(IHasOptions.implementedBy(EventWriter))
def test_interface(self):
self.assertTrue(IHandler.implementedBy(EventPrinter))
self.assertTrue(IPlugin.implementedBy(EventPrinter))