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-rw-r--r--js/src/jit-test/tests/saved-stacks/function-display-name.js16
1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/saved-stacks/function-display-name.js b/js/src/jit-test/tests/saved-stacks/function-display-name.js
new file mode 100644
index 0000000000..f10b7de6bd
--- /dev/null
+++ b/js/src/jit-test/tests/saved-stacks/function-display-name.js
@@ -0,0 +1,16 @@
+// Test the functionDisplayName of SavedFrame instances.
+
+function uno() { return dos(); }
+const dos = () => tres.quattro();
+let tres = {};
+tres.quattro = () => saveStack()
+
+const frame = uno();
+
+assertEq(frame.functionDisplayName, "tres.quattro");
+assertEq(frame.parent.functionDisplayName, "dos");
+assertEq(frame.parent.parent.functionDisplayName, "uno");
+assertEq(frame.parent.parent.parent.functionDisplayName, null);
+
+assertEq(frame.parent.parent.parent.parent, null);
+