1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/self-test/delazification-mode-01.js b/js/src/jit-test/tests/self-test/delazification-mode-01.js
new file mode 100644
index 0000000000..ce1f9ee89b
--- /dev/null
+++ b/js/src/jit-test/tests/self-test/delazification-mode-01.js
@@ -0,0 +1,24 @@
+//|jit-test| skip-if: isLcovEnabled() || helperThreadCount() === 0
+
+// GCs might trash the stencil cache. Prevent us from scheduling too many GCs.
+if ('gczeal' in this) {
+    gczeal(0);
+}
+
+let source = `
+  function foo() {
+    return "foo";
+  }
+
+  waitForStencilCache(foo);
+  // false would be expected if threads are disabled.
+  assertEq(isInStencilCache(foo), true);
+`;
+
+const options = {
+    fileName: "inner-01.js",
+    lineNumber: 1,
+    eagerDelazificationStrategy: "CheckConcurrentWithOnDemand",
+    newContext: true,
+};
+evaluate(source, options);