diff --git a/tests/update-transaction.json b/tests/update-transaction.json
new file mode 100644
index 0000000000000000000000000000000000000000..72dbb64d2368965d96d1d922e70b8aa587c16ae5
--- /dev/null
+++ b/tests/update-transaction.json
@@ -0,0 +1,27 @@
+{
+  "transaction": {
+    "__type__": "Transaction",
+    "date": "2013-01-01",
+    "payee": "Kindly T. Donor",
+    "postings": [
+      {
+        "__type__": "Posting",
+        "account": "Income:Foo:Donation",
+        "amount": {
+          "__type__": "Amount",
+          "amount": "-100",
+          "symbol": "$"
+        }
+      },
+      {
+        "__type__": "Posting",
+        "account": "Assets:Checking",
+        "amount": {
+          "__type__": "Amount",
+          "amount": "100",
+          "symbol": "$"
+        }
+      }
+    ]
+  }
+}