RSpec: how to test if a method was called?

Question

When writing RSpec tests, I find myself writing a lot of code that looks like this in order to ensure that a method was called during the execution of a test (for the sake o

Answer 1

The below should work

describe "#foo"
  it "should call 'bar' with appropriate arguments" do
     subject.stub(:bar)
     subject.foo
     expect(subject).to have_received(:bar).with("Invalid number of arguments")
  end
end

Documentation: https://github.com/rspec/rspec-mocks#expecting-arguments