Ruby: Mocking a class method with MiniTest?
This might not be helpful to you if you're stuck using 2.12.1, but looks like they added method stubbing to minitest/mock in HEAD here.
So, were you to update to minitest HEAD, I think you could do this:
product = Product.newProduct.stub(:find, product) do assert_equal product, Product.find(1)end
What I do is that I simply stub the class method and replace it with my own lambda function which proves that original function was called. You can also test what arguments were used.
Example:
test "unsubscribe user" do user = create(:user, password: "Secret1", email: "john@doe.com", confirmation_token: "token", newsletter_check: false) newsletter = create(:newsletter, name: "Learnlife News") unsubscribe_function = -> (email:) { @unsubscribed_email = email } Hubspot::Subscription.stub :unsubscribe_all, unsubscribe_function do get user_confirmation_en_path(confirmation_token: "token") end assert_equal @unsubscribed_email, "john@doe.com" end