1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/backtrace.js b/js/src/jit-test/tests/wasm/backtrace.js
new file mode 100644
index 0000000000..ea3825ab92
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/backtrace.js
@@ -0,0 +1,21 @@
+var code = `(module
+  (import "env" "test" (func $i))
+  (func $t (call $i))
+  (export "test" (func $t))
+)`;
+var mod = wasmEvalText(code, {
+  env: {
+    test: function() {
+       // Expecting 3 lines in the backtrace (plus last empty).
+       // The middle one is for the wasm function.
+       var s = getBacktrace();
+       var frames = s.split('\n');
+       assertEq(frames.length, 4);
+       assertEq(/> WebAssembly.Module":wasm-function\[1\]:0x/.test(frames[1]), true);
+
+       // Let's also run DumpBacktrace() to check if we are not crashing.
+       backtrace();
+    }
+  }
+}).exports;
+mod.test();