def test_on_delete():
arch = S3archivist(testbucket, s3=mock.Mock(), siteconfig={})
testkey = arch.archetype_prefix + 'test.key'
asset = arch.new_resource(key=testkey, data=asset_data,
resourcetype='archetype')
asset2 = arch.new_resource(key='non-matching.key', data=asset_data,
resourcetype='archetype')
entries = []
indexer = Indexer(archivist=arch)
indexer.indexes[indexer.index_key] = {"entries": entries}
indexer.add_to_index(indexer.index_key, asset)
indexer.add_to_index(indexer.index_key, asset2)
assert len(entries) == 2 # just to be sure our setup worked
indexer.on_delete(testkey)
assert len(entries) == 1
