diff --git a/tests/test_plugin_slack.py b/tests/test_plugin_slack.py
index 767b5c93..a201d049 100644
--- a/tests/test_plugin_slack.py
+++ b/tests/test_plugin_slack.py
@@ -181,7 +181,43 @@ apprise_url_tests = (
             },
         },
     ),
-    # Test blocks mode
+    (
+        (
+            "slack://username@xoxb-1234-1234-abc124/#nuxref?footer=yes"
+            "&timestamp=yes"),
+        {
+            "instance": NotifySlack,
+            "requests_response_text": {
+                "ok": True,
+                "message": "",
+            },
+        },
+    ),
+    (
+        (
+            "slack://username@xoxb-1234-1234-abc124/#nuxref?footer=yes"
+            "&timestamp=no"),
+        {
+            "instance": NotifySlack,
+            "requests_response_text": {
+                "ok": True,
+                "message": "",
+            },
+        },
+    ),
+    (
+        (
+            "slack://username@xoxb-1234-1234-abc124/#nuxref?footer=yes"
+            "&timestamp=no"),
+        {
+            "instance": NotifySlack,
+            "requests_response_text": {
+                "ok": True,
+                "message": "",
+            },
+        },
+    ),
+    # Test blocks mode with timestamp variation
     (
         (
             "slack://?token=T1JJ3T3L2/A1BRTD4JD/TIiajkdnlazkcOXrIdevi7FQ/"
@@ -189,7 +225,7 @@ apprise_url_tests = (
         ),
         {"instance": NotifySlack, "requests_response_text": "ok"},
     ),
-    # Test blocks mode with timestamp
+    # Test blocks mode with another timestamp
     (
         (
             "slack://?token=T1JJ3T3L2/A1BRTD4JD/TIiajkdnlazkcOXrIdevi7FQ/"
@@ -197,10 +233,19 @@ apprise_url_tests = (
         ),
         {"instance": NotifySlack, "requests_response_text": "ok"},
     ),
+    # footer being disabled means timestamp isn't shown
     (
         (
             "slack://?token=T1JJ3T3L2/A1BRTD4JD/TIiajkdnlazkcOXrIdevi7FQ/"
-            "&to=#chan&blocks=yes&footer=no"
+            "&to=#chan&blocks=yes&footer=no&timestamp=yes"
+        ),
+        {"instance": NotifySlack, "requests_response_text": "ok"},
+    ),
+    # footer and timestamp disabled
+    (
+        (
+            "slack://?token=T1JJ3T3L2/A1BRTD4JD/TIiajkdnlazkcOXrIdevi7FQ/"
+            "&to=#chan&blocks=yes&footer=no&timestamp=no"
         ),
         {"instance": NotifySlack, "requests_response_text": "ok"},
     ),