1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug-1894025.js b/js/src/jit-test/tests/gc/bug-1894025.js
new file mode 100644
index 0000000000..06ebd8ceb6
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug-1894025.js
@@ -0,0 +1,15 @@
+gczeal(0);
+
+var ex;
+function makeExtensibleStrFrom() {
+    strstrstr;
+}
+a = makeExtensibleStrFrom;
+b = newDependentString(a, 0, 50, { tenured: false })
+var exc;
+try {
+    c = newDependentString(b, 0, { tenured: true })
+} catch (e) {
+    exc = e;
+}
+assertEq(Boolean(exc), true, "b and c required to be in different heaps but are the same");