RSpec-InstanceSpy.md

Pattern: Missing use of instance_spy

Issue: -

Description

Checks for instance_double used with have_received.

Examples

# bad
it do
  foo = instance_double(Foo).as_null_object
  expect(foo).to have_received(:bar)
end

# good
it do
  foo = instance_spy(Foo)
  expect(foo).to have_received(:bar)
end

Further Reading

• RSpec - RSpec/InstanceSpy
• http://www.rubydoc.info/gems/rubocop-rspec/RuboCop/Cop/RSpec/InstanceSpy