1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/function-tosource-bug779694.js b/js/src/jit-test/tests/basic/function-tosource-bug779694.js
new file mode 100644
index 0000000000..782b2594bc
--- /dev/null
+++ b/js/src/jit-test/tests/basic/function-tosource-bug779694.js
@@ -0,0 +1,8 @@
+// This test creates poorly compressible input, which tests certain paths in
+// source code compression.
+var x = "";
+for (var i=0; i<400; ++i) {
+    x += String.fromCharCode(i * 289);
+}
+var s = "'" + x + "'";
+assertEq(Function("evt", s).toString(), "function anonymous(evt\n) {\n" + s + "\n}");