2 files changed, 52 insertions, 1 deletions
diff --git a/tests/activities/models/test_hashtag.py b/tests/activities/models/test_hashtag.py
new file mode 100644
index 0000000..32742d6
--- /dev/null
+++ b/tests/activities/models/test_hashtag.py
@@ -0,0 +1,41 @@
+from activities.models import Hashtag
+
+
+def test_hashtag_from_content():
+    assert Hashtag.hashtags_from_content("#hashtag") == ["hashtag"]
+    assert Hashtag.hashtags_from_content("a#hashtag") == []
+    assert Hashtag.hashtags_from_content("Text #with #hashtag in it") == [
+        "hashtag",
+        "with",
+    ]
+    assert Hashtag.hashtags_from_content("#hashtag.") == ["hashtag"]
+    assert Hashtag.hashtags_from_content("More text\n#one # two ##three #hashtag;") == [
+        "hashtag",
+        "one",
+        "three",
+    ]
+
+
+def test_linkify_hashtag():
+    linkify = Hashtag.linkify_hashtags
+
+    assert linkify("# hashtag") == "# hashtag"
+    assert (
+        linkify('<a href="/url/with#anchor">Text</a>')
+        == '<a href="/url/with#anchor">Text</a>'
+    )
+    assert (
+        linkify("#HashTag") == '<a class="hashtag" href="/tags/hashtag/">#HashTag</a>'
+    )
+    assert (
+        linkify(
+            """A longer text #bigContent
+with #tags, linebreaks, and
+maybe a few <a href="https://awesome.sauce/about#spicy">links</a>
+#allTheTags #AllTheTags #ALLTHETAGS"""
+        )
+        == """A longer text <a class="hashtag" href="/tags/bigcontent/">#bigContent</a>
+with <a class="hashtag" href="/tags/tags/">#tags</a>, linebreaks, and
+maybe a few <a href="https://awesome.sauce/about#spicy">links</a>
+<a class="hashtag" href="/tags/allthetags/">#allTheTags</a> <a class="hashtag" href="/tags/allthetags/">#AllTheTags</a> <a class="hashtag" href="/tags/allthetags/">#ALLTHETAGS</a>"""
+    )
diff --git a/tests/activities/templatetags/test_activity_tags.py b/tests/activities/templatetags/test_activity_tags.py
index 987c008..85d8cdf 100644
--- a/tests/activities/templatetags/test_activity_tags.py
+++ b/tests/activities/templatetags/test_activity_tags.py
@@ -2,7 +2,7 @@ from datetime import timedelta
 
 from django.utils import timezone
 
-from activities.templatetags.activity_tags import timedeltashort
+from activities.templatetags.activity_tags import linkify_hashtags, timedeltashort
 
 
 def test_timedeltashort_regress():
@@ -19,3 +19,13 @@ def test_timedeltashort_regress():
     assert timedeltashort(value - timedelta(days=364)) == "364d"
     assert timedeltashort(value - timedelta(days=365)) == "1y"
     assert timedeltashort(value - timedelta(days=366)) == "1y"
+
+
+def test_linkify_hashtags_regres():
+    assert linkify_hashtags(None) == ""
+    assert linkify_hashtags("") == ""
+
+    assert (
+        linkify_hashtags("#Takahe")
+        == '<a class="hashtag" href="/tags/takahe/">#Takahe</a>'
+    )