1 files changed, 17 insertions, 0 deletions
diff --git a/testing/web-platform/tests/streams/readable-streams/constructor.any.js b/testing/web-platform/tests/streams/readable-streams/constructor.any.js
new file mode 100644
index 0000000000..608dc48cfa
--- /dev/null
+++ b/testing/web-platform/tests/streams/readable-streams/constructor.any.js
@@ -0,0 +1,17 @@
+// META: global=window,worker
+'use strict';
+
+const error1 = new Error('error1');
+error1.name = 'error1';
+
+const error2 = new Error('error2');
+error2.name = 'error2';
+
+test(() => {
+  const underlyingSource = { get start() { throw error1; } };
+  const queuingStrategy = { highWaterMark: 0, get size() { throw error2; } };
+
+  // underlyingSource is converted in prose in the method body, whereas queuingStrategy is done at the IDL layer.
+  // So the queuingStrategy exception should be encountered first.
+  assert_throws_exactly(error2, () => new ReadableStream(underlyingSource, queuingStrategy));
+}, 'underlyingSource argument should be converted after queuingStrategy argument');