fix the test

src/test/cljc/org/domaindrivenarchitecture/activity_pub_poc/owl_test.cljc

@@ -17,7 +17,7 @@
   (is (sut/owl-class? "http://some.uri"))
   (is (sut/owl-class? {:as "class-definition"}))
   (is (sut/owl-class? []))
-  (is (not (sut/owl-class? "str")))
+  (is (not (sut/owl-class? "http://str:not-a-port")))
   (is (not (sut/owl-class? nil))))
 
 (deftest class-test