diff --git a/test/core/autoload/test-message.el b/test/core/autoload/test-message.el
new file mode 100644
index 000000000..ddf5d6abc
--- /dev/null
+++ b/test/core/autoload/test-message.el
@@ -0,0 +1,24 @@
+;;; test/core/autoload/test-message.el
+
+(def-test-group! core/autoload/message
+
+  (ert-deftest ansi-format ()
+    (should (equal (ansi-format! "Hello %s" "World") "Hello World"))
+    (should (equal (ansi-format! (red "Hello %s" "World")) "Hello World"))
+    (should (equal (ansi-format! (green "Hello %s" "World"))
+                   (format "\e[%dm%s\e[0m"
+                           (cdr (assq 'green doom-ansi-fg))
+                           "Hello World"))))
+
+  (ert-deftest ansi-format-nested ()
+    (should (equal (ansi-format! (bold (red "Hello %s" "World")))
+                   (format "\e[%dm%s\e[0m" 1 (format "\e[%dm%s\e[0m" 31 "Hello World"))))
+    (should (equal (ansi-format! (red (bold "Hello %s" "World")))
+                   (format "\e[%dm%s\e[0m" 31 (format "\e[%dm%s\e[0m" 1 "Hello World")))))
+
+  (ert-deftest ansi-format-apply ()
+    (should (equal (ansi-format! (color 'red "Hello %s" "World"))
+                   (ansi-format! (red "Hello %s" "World"))))
+    (should (equal (ansi-format! (color (if nil 'red 'blue) "Hello %s" "World"))
+                   (ansi-format! (blue "Hello %s" "World"))))))
+