1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/xdr/debug-lazy.js b/js/src/jit-test/tests/xdr/debug-lazy.js
new file mode 100644
index 0000000000..8c0405742d
--- /dev/null
+++ b/js/src/jit-test/tests/xdr/debug-lazy.js
@@ -0,0 +1,19 @@
+load(libdir + 'bytecode-cache.js');
+
+// Ensure that if a function is encoded when non-lazy but relazifiable, then
+// decoded, the resulting script is marked as being non-lazy so that when the
+// debugger tries to delazify things it doesn't get all confused. We just use
+// findScripts() to trigger debugger delazification; we don't really care about
+// the scripts themselves.
+function checkAfter(ctx) {
+    var dbg = new Debugger(ctx.global);
+    var allScripts = dbg.findScripts();
+    assertEq(allScripts.length == 0, false);
+}
+
+test = `
+  function f() { return true; };
+  f();
+  `
+evalWithCache(test, { assertEqBytecode: true, assertEqResult: true,
+		      checkAfter: checkAfter, newCompartment: true});