1 files changed, 12 insertions, 0 deletions
diff --git a/testing/geckodriver/src/test.rs b/testing/geckodriver/src/test.rs
new file mode 100644
index 0000000000..e664aadf08
--- /dev/null
+++ b/testing/geckodriver/src/test.rs
@@ -0,0 +1,12 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+pub fn assert_de<T>(data: &T, json: serde_json::Value)
+where
+    T: std::fmt::Debug,
+    T: std::cmp::PartialEq,
+    T: serde::de::DeserializeOwned,
+{
+    assert_eq!(data, &serde_json::from_value::<T>(json).unwrap());
+}