Add test for '--no-sort-keys'
diff --git a/testing/resources/unsorted_pretty_formatted_json.json b/testing/resources/unsorted_pretty_formatted_json.json
new file mode 100644
index 0000000..fe8bf5e
--- /dev/null
+++ b/testing/resources/unsorted_pretty_formatted_json.json
@@ -0,0 +1,9 @@
+{
+  "foo": "bar",
+  "alist": [
+    34,
+    2,
+    234
+  ],
+  "blah": null
+}