class RuboCop::Cop::RSpec::AnyInstance

Check that instances are not being stubbed globally.

Prefer instance doubles over stubbing any instance of a class

@example

# bad
describe MyClass do
  before { allow_any_instance_of(MyClass).to receive(:foo) }
end

# good
describe MyClass do
  let(:my_instance) { instance_double(MyClass) }

  before do
    allow(MyClass).to receive(:new).and_return(my_instance)
    allow(my_instance).to receive(:foo)
  end
end

Constants

MSG

Public Instance Methods

on_send(node) click to toggle source
# File lib/rubocop/cop/rspec/any_instance.rb, line 30
def on_send(node)
  disallowed_stub(node) do |method|
    add_offense(
      node,
      location: :expression,
      message: format(MSG, method: method)
    )
  end
end