1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/onNewScript-wasm-01.js b/js/src/jit-test/tests/debug/onNewScript-wasm-01.js
new file mode 100644
index 0000000000..d169da6285
--- /dev/null
+++ b/js/src/jit-test/tests/debug/onNewScript-wasm-01.js
@@ -0,0 +1,33 @@
+// |jit-test| skip-if: !wasmDebuggingEnabled()
+// Draining the job queue from an onNewScript hook reporting a streamed wasm
+// module should not deadlock.
+
+ignoreUnhandledRejections();
+
+try {
+    WebAssembly.compileStreaming();
+    // Avoid mixing the test's jobs with the debuggee's, so that
+    // automated checks can make sure AutoSaveJobQueue only
+    // suspends debuggee work.
+    drainJobQueue();
+} catch (err) {
+    assertEq(String(err).indexOf("not supported with --no-threads") !== -1, true);
+    quit();
+}
+
+load(libdir + "asserts.js");
+
+var g = newGlobal({newCompartment: true});
+
+var source = new g.Uint8Array(wasmTextToBinary('(module (func unreachable))'));
+g.source = source;
+
+var dbg = new Debugger(g);
+dbg.allowWasmBinarySource = true;
+dbg.onNewScript = function (s, g) {
+    drainJobQueue();
+};
+
+g.eval('WebAssembly.instantiateStreaming(source);');
+
+drainJobQueue();