1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/function-tosource-lambda.js b/js/src/jit-test/tests/basic/function-tosource-lambda.js
new file mode 100644
index 0000000000..97f28b40ff
--- /dev/null
+++ b/js/src/jit-test/tests/basic/function-tosource-lambda.js
@@ -0,0 +1,18 @@
+var f1 = function f0(a, b) { return a + b; }
+if (Function.prototype.toSource) {
+    assertEq(f1.toSource(), "(function f0(a, b) { return a + b; })");
+}
+assertEq(f1.toString(), "function f0(a, b) { return a + b; }");
+assertEq(decompileFunction(f1), f1.toString());
+var f2 = function (a, b) { return a + b; };
+if (Function.prototype.toSource) {
+    assertEq(f2.toSource(), "(function (a, b) { return a + b; })");
+}
+assertEq(f2.toString(), "function (a, b) { return a + b; }");
+assertEq(decompileFunction(f2), f2.toString());
+var f3 = (function (a, b) { return a + b; });
+if (Function.prototype.toSource) {
+    assertEq(f3.toSource(), "(function (a, b) { return a + b; })");
+}
+assertEq(f3.toString(), "function (a, b) { return a + b; }");
+assertEq(decompileFunction(f3), f3.toString());