1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/js-promise-integration/multi.js b/js/src/jit-test/tests/wasm/js-promise-integration/multi.js
new file mode 100644
index 0000000000..7713637642
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/js-promise-integration/multi.js
@@ -0,0 +1,36 @@
+// Multiple promises at the same time.
+
+function js_import() {
+    return Promise.resolve(42);
+}
+var wasm_js_import = new WebAssembly.Function(
+    { parameters: ['externref'], results: ['i32'] },
+    js_import,
+    { suspending: 'first' });
+
+var ins = wasmEvalText(`(module
+    (import "m" "import" (func $f (param externref) (result i32)))
+    (func (export "test") (param externref) (result i32)
+      local.get 0
+      call $f
+    )
+)`, {"m": {import: wasm_js_import}});
+
+let wrapped_export = new WebAssembly.Function(
+    {
+        parameters: [],
+        results: ['externref']
+    },
+    ins.exports.test, { promising: 'first' });
+
+Promise.resolve().then(() => {
+    wrapped_export().then(i => {
+        assertEq(42, i)
+    });
+});
+
+Promise.resolve().then(() => {
+    wrapped_export().then(i => {
+        assertEq(42, i)
+    });
+});