1 files changed, 7 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/external-strings-cgc.js b/js/src/jit-test/tests/basic/external-strings-cgc.js
new file mode 100644
index 0000000000..aa64172122
--- /dev/null
+++ b/js/src/jit-test/tests/basic/external-strings-cgc.js
@@ -0,0 +1,7 @@
+gczeal(0);
+startgc(1, "shrinking");
+for (var i=0; i<100; i++) {
+    gcslice(100000);
+    var s = "abcdefghi0";
+    assertEq(newString(s, {maybeExternal: true}), s);
+}