Implement loading and storing config to / from file

src/configloader/ValidateInstanceLink_test.go

@@ -51,5 +51,19 @@ func TestValidateInstanceWorks(t *testing.T) {
         t.Fatalf("Output of ValidateInstanceLink() is not https://hessen.museum-digital.de where it should be")
     }
 
+}
+
+// Test that ValidateInstanceLink() works with a valid instance of md and cleans paths.
+func TestValidateInstanceDoesCleanPathFromUrl(t *testing.T) {
+
+    result, err := ValidateInstanceLink("https://hessen.museum-digital.de/home")
+
+    if err != nil {
+        t.Fatalf("ValidateInstanceLink() returns an error where it should work")
+    }
+    if result != "https://hessen.museum-digital.de" {
+        t.Fatalf("Output of ValidateInstanceLink() is not https://hessen.museum-digital.de where it should be")
+    }
+
 
 }