using Mocha in simple code turned in unexpected way. Could you explain what is going wrong?
require 'test-unit'
require 'mocha'
class A
def m
caller.first
end
end
So using this simple class, we can get the latest caller:
A.new.m #=> "(irb):32:in `irb_binding'" (for example)
But if I want to stub caller call, things going wrong.
a = A.new
a.stubs(:caller)
Mocha::ExpectationError: unexpected invocation: #<A:0x6aac20>.caller()
My guess is to check out Mocha sources, but I will do it later ;)
This is a partial explanation, but I hope it is still useful.
As you've suggested, a way to understand what's going on here is to check the Mocha sources. I think the key to the issue is that the Expectation class, which is used when creating the stub, makes use of the caller method itself.
A workaround would be to use alias_method e.g.
class A
alias_method :my_caller, :caller # allow caller to be stubbed
def m
my_caller.first
end
end
a = A.new
a.stubs(:my_caller)