1 files changed, 86 insertions, 0 deletions
diff --git a/services/sync/tests/unit/test_form_validator.js b/services/sync/tests/unit/test_form_validator.js
new file mode 100644
index 0000000000..58ea8b855b
--- /dev/null
+++ b/services/sync/tests/unit/test_form_validator.js
@@ -0,0 +1,86 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const { FormValidator } = ChromeUtils.importESModule(
+  "resource://services-sync/engines/forms.sys.mjs"
+);
+
+function getDummyServerAndClient() {
+  return {
+    server: [
+      {
+        id: "11111",
+        guid: "11111",
+        name: "foo",
+        fieldname: "foo",
+        value: "bar",
+      },
+      {
+        id: "22222",
+        guid: "22222",
+        name: "foo2",
+        fieldname: "foo2",
+        value: "bar2",
+      },
+      {
+        id: "33333",
+        guid: "33333",
+        name: "foo3",
+        fieldname: "foo3",
+        value: "bar3",
+      },
+    ],
+    client: [
+      {
+        id: "11111",
+        guid: "11111",
+        name: "foo",
+        fieldname: "foo",
+        value: "bar",
+      },
+      {
+        id: "22222",
+        guid: "22222",
+        name: "foo2",
+        fieldname: "foo2",
+        value: "bar2",
+      },
+      {
+        id: "33333",
+        guid: "33333",
+        name: "foo3",
+        fieldname: "foo3",
+        value: "bar3",
+      },
+    ],
+  };
+}
+
+add_task(async function test_valid() {
+  let { server, client } = getDummyServerAndClient();
+  let validator = new FormValidator();
+  let { problemData, clientRecords, records, deletedRecords } =
+    await validator.compareClientWithServer(client, server);
+  equal(clientRecords.length, 3);
+  equal(records.length, 3);
+  equal(deletedRecords.length, 0);
+  deepEqual(problemData, validator.emptyProblemData());
+});
+
+add_task(async function test_formValidatorIgnoresMissingClients() {
+  // Since history form records are not deleted from the server, the
+  // |FormValidator| shouldn't set the |missingClient| flag in |problemData|.
+  let { server, client } = getDummyServerAndClient();
+  client.pop();
+
+  let validator = new FormValidator();
+  let { problemData, clientRecords, records, deletedRecords } =
+    await validator.compareClientWithServer(client, server);
+
+  equal(clientRecords.length, 2);
+  equal(records.length, 3);
+  equal(deletedRecords.length, 0);
+
+  let expected = validator.emptyProblemData();
+  deepEqual(problemData, expected);
+});