diff --git a/src/test/clj/org/domaindrivenarchitecture/activity_pub_poc/core_test.clj b/src/test/clj/org/domaindrivenarchitecture/activity_pub_poc/core_test.clj
index 621df7d..4bb3f1f 100644
--- a/src/test/clj/org/domaindrivenarchitecture/activity_pub_poc/core_test.clj
+++ b/src/test/clj/org/domaindrivenarchitecture/activity_pub_poc/core_test.clj
@@ -1,6 +1,21 @@
 (ns org.domaindrivenarchitecture.activity-pub-poc.core-test
-  (:require [clojure.test :refer :all]
-            [org.domaindrivenarchitecture.activity-pub-poc.core :as sut]))
+  (:require
+   [clojure.test :refer [deftest is are testing run-tests]]
+   [clojure.spec.test.alpha :as st]
+   [org.domaindrivenarchitecture.activity-pub-poc.core :as sut]))
 
-(deftest get-property-type-from-ld-resource
-  (is (= 0 1)))
\ No newline at end of file
+(st/instrument `sut/generate-like-map)
+
+(def test-like-data
+  {:to "https://chatty.bla/ben/"
+   :target "posts/234s23-2g34234-2hhj536"
+   :from "https://social.bla/alyssa/"})
+
+(deftest produces-valid-like
+  (is (= {"@context" "https://www.w3.org/ns/activitystreams",
+           "type" "Like",
+           "id" "https://social.bla/alyssa/out/sdfsd44243g324g3455",
+           "to" "https://chatty.bla/ben/",
+           "actor" "https://social.bla/alyssa/",
+           "object" "posts/234s23-2g34234-2hhj536"}
+          (sut/generate-like-map test-like-data))))
\ No newline at end of file