1 files changed, 39 insertions, 0 deletions
diff --git a/dom/webgpu/mochitest/test_error_scope.html b/dom/webgpu/mochitest/test_error_scope.html
new file mode 100644
index 0000000000..2bed5b937b
--- /dev/null
+++ b/dom/webgpu/mochitest/test_error_scope.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <script src="/tests/SimpleTest/SimpleTest.js"></script>
+    <link rel="stylesheet" href="/tests/SimpleTest/test.css" />
+  </head>
+  <body>
+    <script>
+      ok(
+        SpecialPowers.getBoolPref("dom.webgpu.enabled"),
+        "Pref should be enabled."
+      );
+
+      const func = async function () {
+        const adapter = await navigator.gpu.requestAdapter();
+        const device = await adapter.requestDevice();
+
+        device.pushErrorScope("validation");
+        const buffer = device.createBuffer({ size: 0, usage: 0 });
+        const error = await device.popErrorScope();
+
+        isnot(error, null);
+
+        try {
+          await device.popErrorScope();
+          ok(false, "Should have thrown");
+        } catch (ex) {
+          ok(ex.name == "OperationError", "Should throw an OperationError");
+        }
+      };
+
+      SimpleTest.waitForExplicitFinish();
+      func()
+        .catch(e => ok(false, "Unhandled exception " + e))
+        .finally(() => SimpleTest.finish());
+    </script>
+  </body>
+</html>