1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/non262/lexical-environment/nondefinable-function-same-script.js b/js/src/tests/non262/lexical-environment/nondefinable-function-same-script.js
new file mode 100644
index 0000000000..5d569fe4a0
--- /dev/null
+++ b/js/src/tests/non262/lexical-environment/nondefinable-function-same-script.js
@@ -0,0 +1,24 @@
+// |reftest| skip-if(!xulRuntime.shell)
+
+function assertEvaluateAndIndirectEvalThrows(str) {
+  assertThrowsInstanceOf(() => evaluate(str), TypeError);
+  assertThrowsInstanceOf(() => (1,eval)(str), TypeError);
+}
+
+// Regular vars
+assertEvaluateAndIndirectEvalThrows(`var NaN; function NaN() {}`);
+
+// for-of vars
+assertEvaluateAndIndirectEvalThrows(`for (var NaN of []); function NaN() {}`);
+
+// Annex B.3.3 synthesized vars
+assertEvaluateAndIndirectEvalThrows(`{ function NaN() {} } function NaN() {}`);
+
+// Non-data properties
+Object.defineProperty(this, 'foo', { set: function() {} });
+assertEvaluateAndIndirectEvalThrows(`var foo; function foo() {}`);
+assertEvaluateAndIndirectEvalThrows(`for (var foo of []); function foo() {}`);
+assertEvaluateAndIndirectEvalThrows(`{ function foo() {} } function foo() {}`);
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);