diff --git a/test/clj/metafacture_playground/process_test.clj b/test/clj/metafacture_playground/process_test.clj
index fc8ba3e..505e422 100644
--- a/test/clj/metafacture_playground/process_test.clj
+++ b/test/clj/metafacture_playground/process_test.clj
@@ -1,49 +1,59 @@
 (ns metafacture-playground.process-test
-  (:require [clojure.test :refer :all]
-            [metafacture-playground.process :refer [process]]))
+  (:require [clojure.test :refer [deftest testing is]]
+            [metafacture-playground.process :refer [process]]
+            [clojure.java.io :as io]
+            [lambdaisland.uri :refer [uri query-string->map]]))
 
-; TODO: we should extract the samples here and in db.cljs to files
-(def sample-data {:data "1{a: Faust, b {n: Goethe, v: JW}, c: Weimar}\n2{a: Räuber, b {n: Schiller, v: F}, c: Weimar}"
-                  :flux-with-fix "inputFile|\nopen-file\n|as-lines\n|decode-formeta\n|fix(transformationFile)\n|encode-xml(rootTag=\"collection\")\n|print\n;"
-                  :flux-with-morph "inputFile|\nopen-file\n|as-lines\n|decode-formeta\n|morph(transformationFile)\n|encode-xml(rootTag=\"collection\")\n|print\n;"
-                  :fix  "move_field(_id, id)\nmove_field(a, title)\npaste(author, b.v, b.n, '~aus', c)\nretain(id, title, author)"
-                  :morph  (str "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
-                         "<metamorph xmlns=\"http://www.culturegraph.org/metamorph\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
-                         "\tversion=\"1\">\n"
-                         "\t<rules>\n"
-                         "\t\t<data source=\"_id\" name=\"id\"/>\n"
-                         "\t\t<data source=\"a\" name=\"title\"/>\n"
-                         "\t\t<combine value=\"${first} ${last} aus ${place}\" name=\"author\">\n"
-                         "\t\t\t<data source=\"b.v\" name=\"first\" />\n"
-                         "\t\t\t<data source=\"b.n\" name=\"last\" />\n"
-                         "\t\t\t<data source=\"c\" name=\"place\" />\n"
-                         "\t\t</combine>\n"
-                         "\t</rules>\n"
-                         "</metamorph>\n")})
+(deftest processing-correctly-test
+  (let [test-data {:data "1{a: Faust, b {n: Goethe, v: JW}, c: Weimar}\n2{a: Räuber, b {n: Schiller, v: F}, c: Weimar}"
+                   :flux-with-fix "inputFile|\nopen-file\n|as-lines\n|decode-formeta\n|fix(transformationFile)\n|encode-xml(rootTag=\"collection\")\n|print\n;"
+                   :flux-with-morph "inputFile|\nopen-file\n|as-lines\n|decode-formeta\n|morph(transformationFile)\n|encode-xml(rootTag=\"collection\")\n|print\n;"
+                   :fix  "move_field(_id, id)\nmove_field(a, title)\npaste(author, b.v, b.n, '~aus', c)\nretain(id, title, author)"
+                   :morph  (str "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+                                "<metamorph xmlns=\"http://www.culturegraph.org/metamorph\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
+                                "\tversion=\"1\">\n"
+                                "\t<rules>\n"
+                                "\t\t<data source=\"_id\" name=\"id\"/>\n"
+                                "\t\t<data source=\"a\" name=\"title\"/>\n"
+                                "\t\t<combine value=\"${first} ${last} aus ${place}\" name=\"author\">\n"
+                                "\t\t\t<data source=\"b.v\" name=\"first\" />\n"
+                                "\t\t\t<data source=\"b.n\" name=\"last\" />\n"
+                                "\t\t\t<data source=\"c\" name=\"place\" />\n"
+                                "\t\t</combine>\n"
+                                "\t</rules>\n"
+                                "</metamorph>\n")
+                   :result (str "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+                                "\n<collection>"
+                                "\n"
+                                "\n	<record>"
+                                "\n		<id>1</id>"
+                                "\n		<title>Faust</title>"
+                                "\n		<author>JW Goethe aus Weimar</author>"
+                                "\n	</record>"
+                                "\n"
+                                "\n	<record>"
+                                "\n		<id>2</id>"
+                                "\n		<title>Räuber</title>"
+                                "\n		<author>F Schiller aus Weimar</author>"
+                                "\n	</record>"
+                                "\n"
+                                "\n</collection>\n")}]
+   (testing "Process sample data (with fix) with correct result."
+     (let [result (process (:flux-with-fix test-data) (:data test-data) (:fix test-data))]
+       (is (= result (:result test-data)))))
 
-(def test-data (merge sample-data 
-  {:result (str "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
-    "\n<collection>"
-    "\n"
-    "\n	<record>"
-    "\n		<id>1</id>"
-    "\n		<title>Faust</title>"
-    "\n		<author>JW Goethe aus Weimar</author>"
-    "\n	</record>"
-    "\n"
-    "\n	<record>"
-    "\n		<id>2</id>"
-    "\n		<title>Räuber</title>"
-    "\n		<author>F Schiller aus Weimar</author>"
-    "\n	</record>"
-    "\n"
-    "\n</collection>\n")}))
+    (testing "Process sample data (with morph) with correct result."
+      (let [result (process (:flux-with-morph test-data) (:data test-data) (:morph test-data))]
+        (is (= result (:result test-data)))))))
 
-(deftest processing-test
-  (testing "Process sample data (with fix) correctly."
-    (let [result (process (:flux-with-fix test-data) (:data test-data) (:fix test-data))]
-      (is (= result (:result test-data)))))
-
-  (testing "Process sample data (with morph) correctly."
-    (let [result (process (:flux-with-morph test-data) (:data test-data) (:morph test-data))]
-      (is (= result (:result test-data))))))
+(deftest process-examples-test
+  (testing "Process all examples in resources/examples without exceptions."
+     (let [examples (->> (io/resource "examples")
+                        io/file
+                        .listFiles
+                        ;(map io/file)
+                        (keep #(when (.isFile %)
+                                 (slurp %)))
+                        (map #(-> % uri :query query-string->map)))]
+       (doseq [example examples]
+         (is (process (:flux example) (:data example) (:transformation example)))))))