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Contents
RSpec.describe RuboCop::Cop::RSpec::InstanceSpy do
subject(:cop) { described_class.new }
context 'when used with `have_received`' do
it 'adds an offense for an instance_double with single argument' do
expect_offense(<<-RUBY)
it do
foo = instance_double(Foo).as_null_object
^^^^^^^^^^^^^^^^^^^^ Use `instance_spy` when you check your double with `have_received`.
expect(foo).to have_received(:bar)
end
RUBY
end
it 'adds an offense for an instance_double with multiple arguments' do
expect_offense(<<-RUBY)
it do
foo = instance_double(Foo, :name).as_null_object
^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use `instance_spy` when you check your double with `have_received`.
expect(foo).to have_received(:bar)
end
RUBY
end
it 'ignores instance_double when it is not used with as_null_object' do
expect_no_offenses(<<-RUBY)
it do
foo = instance_double(Foo)
expect(bar).to have_received(:bar)
end
RUBY
end
end
context 'when not used with `have_received`' do
it 'does not add an offence' do
expect_no_offenses(<<-RUBY)
it do
foo = instance_double(Foo).as_null_object
expect(bar).to have_received(:bar)
end
RUBY
end
end
original = <<-RUBY
it do
foo = instance_double(Foo, :name).as_null_object
expect(foo).to have_received(:bar)
end
RUBY
corrected = <<-RUBY
it do
foo = instance_spy(Foo, :name)
expect(foo).to have_received(:bar)
end
RUBY
include_examples 'autocorrect', original, corrected
end
Version data entries
24 entries across 24 versions & 1 rubygems