def test_context_components():
from giblets import Component, implements, ExtensionInterface, ExtensionPoint
from melkman.context import Context, IContextConfigurable
class IBaz(ExtensionInterface):
pass
class FooComponent(Component):
implements(IContextConfigurable, IBaz)
def set_context(self, context):
self.context = context
class BarComponent(Component):
implements(IContextConfigurable, IBaz)
def set_context(self, context):
self.context = context
class BazHolder(Component):
bazoo = ExtensionPoint(IBaz)
config = """
{
"plugins": [
{"pattern": "test_context.FooComponent", "enabled": true},
{"pattern": "test_context.BarComponent", "enabled": false},
{"pattern": "test_context.BazHolder", "enabled": true}]
}
"""
ctx = Context.from_json(config)
with ctx:
bazer = BazHolder(ctx.component_manager)
# check that only the enabled components came through
assert len(bazer.bazoo) == 1
assert isinstance(bazer.bazoo[0], FooComponent)
# check that the component was configured with the context
assert bazer.bazoo[0].context == ctx
