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""" Tests for the Egg plugin manager. """
# Standard library imports.
import unittest
# Enthought library imports.
from enthought.envisage.api import EggPluginManager
# Local imports.
from egg_based_test_case import EggBasedTestCase
class EggPluginManagerTestCase(EggBasedTestCase):
""" Tests for the Egg plugin manager. """
###########################################################################
# Tests.
###########################################################################
# fixme: Depending how many eggs are on sys.path, this test may take too
# long to be part of the TDD cycle.
def test_no_include_or_exclude(self):
""" no include or exclude """
# Add all of the eggs in the egg basket.
self._add_eggs_on_path([self.egg_dir])
# Make sure that the plugin manager only includes those plugins.
plugin_manager = EggPluginManager()
# We don't know how many plugins we will actually get - it depends on
# what eggs are on sys.path! What we *do* know however is the the 3
# 'acme' test eggs should be in there!
ids = [plugin.id for plugin in plugin_manager]
self.assert_('acme.foo' in ids)
self.assert_('acme.bar' in ids)
self.assert_('acme.baz' in ids)
return
def test_include_specific(self):
""" include specific """
# Add all of the eggs in the egg basket.
self._add_eggs_on_path([self.egg_dir])
# The Ids of the plugins that we expect the plugin manager to find.
expected = ['acme.foo', 'acme.bar']
# We explicitly limit the plugins to be just the 'acme' test plugins
# because otherwise the egg plugin manager will pick up *every* plugin
# in *every* egg on sys.path!
include = ['acme\.foo', 'acme\.bar']
# Make sure that the plugin manager only includes those plugins.
plugin_manager = EggPluginManager(include=include)
# Make sure the plugin manager found only the required plugins and that
# it starts and stops them correctly..
self._test_start_and_stop(plugin_manager, expected)
return
def test_include_multiple(self):
""" include multiple """
# Add all of the eggs in the egg basket.
self._add_eggs_on_path([self.egg_dir])
# The Ids of the plugins that we expect the plugin manager to find.
expected = ['acme.foo', 'acme.bar', 'acme.baz']
# We explicitly limit the plugins to be just the 'acme' test plugins
# because otherwise the egg plugin manager will pick up *every* plugin
# in *every* egg on sys.path!
include = ['acme.*']
# Make sure that the plugin manager only includes those plugins.
plugin_manager = EggPluginManager(include=include)
# Make sure the plugin manager found only the required plugins and that
# it starts and stops them correctly..
self._test_start_and_stop(plugin_manager, expected)
return
def test_exclude_specific(self):
""" exclude specific """
# Add all of the eggs in the egg basket.
self._add_eggs_on_path([self.egg_dir])
# The Ids of the plugins that we expect the plugin manager to find.
expected = ['acme.bar']
# We explicitly limit the plugins to be just the 'acme' test plugins
# because otherwise the egg plugin manager will pick up *every* plugin
# in *every* egg on sys.path!
include = ['acme.*']
# Now exclude all but 'acme.bar'...
exclude = ['acme\.foo', 'acme\.baz']
# Make sure that the plugin manager excludes the specified plugins.
plugin_manager = EggPluginManager(include=include, exclude=exclude)
# Make sure the plugin manager found only the required plugins and that
# it starts and stops them correctly..
self._test_start_and_stop(plugin_manager, expected)
return
def test_exclude_multiple(self):
""" exclude multiple """
# Add all of the eggs in the egg basket.
self._add_eggs_on_path([self.egg_dir])
# The Ids of the plugins that we expect the plugin manager to find.
expected = ['acme.foo']
# We explicitly limit the plugins to be just the 'acme' test plugins
# because otherwise the egg plugin manager will pick up *every* plugin
# in *every* egg on sys.path!
include = ['acme.*']
# Now exclude every plugin that starts with 'acme.b'.
exclude = ['acme\.b.*']
# Make sure that the plugin manager excludes the specified plugins.
plugin_manager = EggPluginManager(include=include, exclude=exclude)
# Make sure the plugin manager found only the required plugins and that
# it starts and stops them correctly..
self._test_start_and_stop(plugin_manager, expected)
return
###########################################################################
# Private interface.
###########################################################################
def _test_start_and_stop(self, plugin_manager, expected):
""" Make sure the plugin manager starts and stops the expected plugins.
"""
# Make sure the plugin manager found only the required plugins.
self.assertEqual(expected, [plugin.id for plugin in plugin_manager])
# Start the plugin manager. This starts all of the plugin manager's
# plugins.
plugin_manager.start()
# Make sure all of the the plugins were started.
for id in expected:
plugin = plugin_manager.get_plugin(id)
self.assertNotEqual(None, plugin)
self.assertEqual(True, plugin.started)
# Stop the plugin manager. This stops all of the plugin manager's
# plugins.
plugin_manager.stop()
# Make sure all of the the plugins were stopped.
for id in expected:
plugin = plugin_manager.get_plugin(id)
self.assertNotEqual(None, plugin)
self.assertEqual(True, plugin.stopped)
return
# Entry point for stand-alone testing.
if __name__ == '__main__':
unittest.main()
#### EOF ######################################################################
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