def test_consider_conftest(self, testdir):
        pp = PytestPlugins()
        mod = testdir.makepyfile("class ConftestPlugin: hello = 1").pyimport()
        pp.consider_conftest(mod)
        l = [x for x in pp.getplugins() if isinstance(x, mod.ConftestPlugin)]
        assert len(l) == 1
        assert l[0].hello == 1

        pp.consider_conftest(mod)
        l = [x for x in pp.getplugins() if isinstance(x, mod.ConftestPlugin)]
        assert len(l) == 1
 def test_consider_env_plugin_instantiation(self, testdir, monkeypatch):
     plugins = PytestPlugins()
     testdir.syspathinsert()
     testdir.makepyfile(pytest_xy123="class Xy123Plugin: pass")
     monkeypatch.setitem(os.environ, 'PYTEST_PLUGINS', 'xy123')
     l1 = len(plugins.getplugins())
     plugins.consider_env()
     l2 = len(plugins.getplugins())
     assert l2 == l1 + 1 
     assert plugins.getplugin('pytest_xy123') 
     plugins.consider_env()
     l3 = len(plugins.getplugins())
     assert l2 == l3
    def test_import_plugin_importname(self, testdir):
        plugins = PytestPlugins()
        py.test.raises(ImportError, 'plugins.import_plugin("x.y")')
        py.test.raises(ImportError, 'plugins.import_plugin("pytest_x.y")')

        reset = testdir.syspathinsert()
        pluginname = "pytest_hello"
        testdir.makepyfile(**{pluginname: """
            class HelloPlugin:
                pass
        """})
        plugins.import_plugin("hello")
        len1 = len(plugins.getplugins())
        plugins.import_plugin("pytest_hello")
        len2 = len(plugins.getplugins())
        assert len1 == len2
        plugin1 = plugins.getplugin("pytest_hello")
        assert plugin1.__class__.__name__ == 'HelloPlugin'
        plugin2 = plugins.getplugin("hello")
        assert plugin2 is plugin1
 def test_registry(self):
     pp = PytestPlugins()
     a1, a2 = object(), object()
     pp.register(a1)
     assert pp.isregistered(a1)
     pp.register(a2)
     assert pp.isregistered(a2)
     assert pp.getplugins() == [a1, a2]
     pp.unregister(a1)
     assert not pp.isregistered(a1)
     pp.unregister(a2)
     assert not pp.isregistered(a2)