1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Script-isFunction.js b/js/src/jit-test/tests/debug/Script-isFunction.js
new file mode 100644
index 0000000000..5f68d54b19
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Script-isFunction.js
@@ -0,0 +1,25 @@
+// Script.isFunction should do what it is supposed to do.
+
+const g = newGlobal({newCompartment: true});
+const dbg = new Debugger;
+dbg.addDebuggee(g);
+
+let gNumFunctionScripts = 0;
+function countFunctionScripts(script) {
+  if (script.isFunction) {
+    gNumFunctionScripts++;
+  }
+  return script.getChildScripts().forEach(countFunctionScripts);
+}
+
+dbg.onNewScript = countFunctionScripts;
+
+g.eval(`
+function f() {
+  function f2() {}
+}
+async function g() {}
+function* h() {}
+`);
+
+assertEq(gNumFunctionScripts, 4);