diff --git a/src/test/clj/org/domaindrivenarchitecture/activity_pub_poc/parser_test.clj b/src/test/clj/org/domaindrivenarchitecture/activity_pub_poc/parser_test.clj
new file mode 100644
index 0000000..26f0025
--- /dev/null
+++ b/src/test/clj/org/domaindrivenarchitecture/activity_pub_poc/parser_test.clj
@@ -0,0 +1,27 @@
+(ns org.domaindrivenarchitecture.activity-pub-poc.parser-test
+  (:require [clojure.test :refer :all]
+            [org.domaindrivenarchitecture.activity-pub-poc.parser :as sut]))
+
+
+(def processed (slurp "src/test/resources/deleted_comments_minimal.ttl"))
+(def expected-definitions ["@prefix : <http://www.w3.org/ns/activitystreams#>"
+                           "@prefix as: <http://www.w3.org/ns/activitystreams#>"
+                           "@prefix owl: <http://www.w3.org/2002/07/owl#>"
+                           "@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>"
+                           "@prefix xml: <http://www.w3.org/XML/1998/namespace>"
+                           "@prefix xsd: <http://www.w3.org/2001/XMLSchema#>"
+                           "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>"
+                           "@base <http://www.w3.org/ns/activitystreams>"
+                           "<http://www.w3.org/ns/activitystreams#> a owl:Ontology ;  rdfs:comment \"Extended Activity Streams 2.0 Vocabulary\"@en ;  rdfs:label \"Activity Streams 2.0\"@en ;  owl:imports <http://www.w3.org/ns/prov#>"
+                           "rdf:langString a rdfs:Datatype"
+                           "xsd:duration a rdfs:Datatype"])
+
+(deftest remove-comments-test
+  (is
+   (= processed
+      (sut/delete-comments-and-newlines "src/test/resources/minimal.ttl"))))
+
+((deftest find-definitions-test
+   (testing "Finding definitons"
+     (is (= expected-definitions
+            (sut/find-definitions processed))))))
\ No newline at end of file
diff --git a/src/test/resources/deleted_comments_minimal.ttl b/src/test/resources/deleted_comments_minimal.ttl
new file mode 100644
index 0000000..664788a
--- /dev/null
+++ b/src/test/resources/deleted_comments_minimal.ttl
@@ -0,0 +1 @@
+@prefix : <http://www.w3.org/ns/activitystreams#> .@prefix as: <http://www.w3.org/ns/activitystreams#> .@prefix owl: <http://www.w3.org/2002/07/owl#> .@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .@prefix xml: <http://www.w3.org/XML/1998/namespace> .@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .@base <http://www.w3.org/ns/activitystreams> .<http://www.w3.org/ns/activitystreams#> a owl:Ontology ;  rdfs:comment "Extended Activity Streams 2.0 Vocabulary"@en ;  rdfs:label "Activity Streams 2.0"@en ;  owl:imports <http://www.w3.org/ns/prov#> .rdf:langString a rdfs:Datatype .xsd:duration a rdfs:Datatype .
\ No newline at end of file
diff --git a/src/test/resources/minimal.ttl b/src/test/resources/minimal.ttl
new file mode 100644
index 0000000..583aaee
--- /dev/null
+++ b/src/test/resources/minimal.ttl
@@ -0,0 +1,30 @@
+# Downloaded from https://www.w3.org/ns/activitystreams-owl
+
+@prefix : <http://www.w3.org/ns/activitystreams#> .
+@prefix as: <http://www.w3.org/ns/activitystreams#> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix xml: <http://www.w3.org/XML/1998/namespace> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@base <http://www.w3.org/ns/activitystreams> .
+
+<http://www.w3.org/ns/activitystreams#> a owl:Ontology ;
+  rdfs:comment "Extended Activity Streams 2.0 Vocabulary"@en ;
+  rdfs:label "Activity Streams 2.0"@en ;
+  owl:imports <http://www.w3.org/ns/prov#> .
+
+#################################################################
+#
+#    Datatypes
+#
+#################################################################
+
+rdf:langString a rdfs:Datatype .
+xsd:duration a rdfs:Datatype .
+
+#################################################################
+#
+#    Object Properties
+#
+#################################################################
\ No newline at end of file