diff --git a/gallery_dl/extractor/danbooru.py b/gallery_dl/extractor/danbooru.py
index 7da1247a..869c5e5a 100644
--- a/gallery_dl/extractor/danbooru.py
+++ b/gallery_dl/extractor/danbooru.py
@@ -19,13 +19,25 @@ class DanbooruTagExtractor(DanbooruExtractor, booru.BooruTagExtractor):
     """Extract images from danbooru based on search-tags"""
     subcategory = "tag"
     pattern = [r"(?:https?://)?(?:www\.)?danbooru.donmai.us/posts\?(?:utf8=%E2%9C%93&)?tags=([^&]+)"]
+    test = [("https://danbooru.donmai.us/posts?tags=heath_ledger", {
+        "url": "a261c33f117c7395f0eac54091075e67c8e66fca",
+        "keyword": "86c1e0fc2879befe90cf8b4404264338b8063685",
+    })]
 
 class DanbooruPoolExtractor(DanbooruExtractor, booru.BooruPoolExtractor):
     """Extract image-pools from danbooru"""
     subcategory = "pool"
     pattern = [r"(?:https?://)?(?:www\.)?danbooru.donmai.us/pools/(\d+)"]
+    test = [("https://danbooru.donmai.us/pools/7659", {
+        "url": "db522c7f74d42ec1940fb23d1a58ed8edb65f9ae",
+        "keyword": "bf8256e88ac0d032808e9f5aa165c9a1fa7e451c",
+    })]
 
 class DanbooruPostExtractor(DanbooruExtractor, booru.BooruPostExtractor):
     """Extract single images from danbooru"""
     subcategory = "post"
     pattern = [r"(?:https?://)?(?:www\.)?danbooru.donmai.us/posts/(\d+)"]
+    test = [("https://danbooru.donmai.us/posts/1534703", {
+        "url": "3a87a761dad69dfa038499aeacef679a3912816b",
+        "keyword": "0a2f4dd6b8384fcbc805302040234536895a2dc3",
+    })]