1 files changed, 16 insertions, 0 deletions
diff --git a/testing/mochitest/tests/browser/browser_head.js b/testing/mochitest/tests/browser/browser_head.js
new file mode 100644
index 0000000000..3e3893f2d4
--- /dev/null
+++ b/testing/mochitest/tests/browser/browser_head.js
@@ -0,0 +1,16 @@
+var testVar;
+
+registerCleanupFunction(function () {
+  ok(true, "I'm a cleanup function in test file");
+  is(
+    this.testVar,
+    "I'm a var in test file",
+    "Test cleanup function scope is correct"
+  );
+});
+
+function test() {
+  is(headVar, "I'm a var in head file", "Head variables are set");
+  ok(headMethod(), "Head methods are imported");
+  testVar = "I'm a var in test file";
+}