Glad it worked. It’s good you reported this, I should be using local language strings instead of hard coding them directly. This should be fixed in the next version and compatibility with CI 2.x as well.

As per my view there is no need to test the controller functions for unit testing as it is integration of many functions of models , helpers etc.

So perform unit testing on those function only . If the test passes the test for controller will pass automatically.

We can perform integration testing for controller functions .may be!!!