1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Script-isModule-04.js b/js/src/jit-test/tests/debug/Script-isModule-04.js
new file mode 100644
index 0000000000..8d22ca680a
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Script-isModule-04.js
@@ -0,0 +1,19 @@
+// Debugger.Object.prototype.isModule
+
+const g = newGlobal({newCompartment: true});
+const dbg = Debugger(g);
+let count = 0;
+dbg.onNewScript = function (script) {
+    count += 1;
+    assertEq(script.isModule, true);
+};
+dbg.onDebuggerStatement = function (frame) {
+    const { script } = frame;
+
+    assertEq(script.isModule, false);
+};
+const m = g.parseModule("(function(){ debugger; })()");
+m.declarationInstantiation();
+m.evaluation();
+
+assertEq(count, 1);