X-Git-Url: http://git.scottworley.com/paperdoorknob/blobdiff_plain/705973e749e5a9da0453508dbd23de434a0fdc65..386218397a4723129b31e3954bb960da61f72474:/fetch.py

diff --git a/fetch.py b/fetch.py
index 3c0c6a3..7776f93 100644
--- a/fetch.py
+++ b/fetch.py
@@ -41,3 +41,14 @@ def DirectFetcher(timeout: int) -> Iterator[_SessionFetcher]:
 def CachingFetcher(cache_path: str, timeout: int) -> Iterator[_SessionFetcher]:
     with requests_cache.CachedSession(cache_path, cache_control=True) as session:
         yield _SessionFetcher(session, timeout)
+
+
+class FakeFetcher(Fetcher):
+
+    def __init__(self, resources: dict[str, bytes]) -> None:
+        self._resources = resources
+
+    def fetch(self, url: str) -> bytes:
+        if url not in self._resources:
+            raise requests.HTTPError("URL not found")
+        return self._resources[url]