1 files changed, 15 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/dynamic-import/microtasks/with-import-assertions.any.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/dynamic-import/microtasks/with-import-assertions.any.js
new file mode 100644
index 0000000000..f67ba9a1ae
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/dynamic-import/microtasks/with-import-assertions.any.js
@@ -0,0 +1,15 @@
+// META: global=window,dedicatedworker,sharedworker
+// META: script=ticker.js
+
+promise_test(async t => {
+  // Use Date.now() to ensure that the module is not in the module map
+  const specifier = "./empty-module.js?" + Date.now();
+
+  const getCount = ticker(1000);
+
+  const importP = import(specifier, { assert: { type: "<invalid>" } });
+  await promise_rejects_js(t, TypeError, importP, 'import() should reject');
+
+  assert_less_than(getCount(), 1000);
+}, "import() should not drain the microtask queue if it fails while validating the 'type' assertion");
+