/
expect_actual_spec.rb
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/
expect_actual_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::RSpec::ExpectActual do
it 'flags numeric literal values within expect(...)' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(123).to eq(bar)
^^^ Provide the actual you are testing to `expect(...)`.
expect(12.3).to eq(bar)
^^^^ Provide the actual you are testing to `expect(...)`.
expect(1i).to eq(bar)
^^ Provide the actual you are testing to `expect(...)`.
expect(1r).to eq(bar)
^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eq(123)
expect(bar).to eq(12.3)
expect(bar).to eq(1i)
expect(bar).to eq(1r)
end
end
RUBY
end
it 'flags boolean literal values within expect(...)' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(true).to eq(bar)
^^^^ Provide the actual you are testing to `expect(...)`.
expect(false).to eq(bar)
^^^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eq(true)
expect(bar).to eq(false)
end
end
RUBY
end
it 'flags string and symbol literal values within expect(...)' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect("foo").to eq(bar)
^^^^^ Provide the actual you are testing to `expect(...)`.
expect(:foo).to eq(bar)
^^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eq("foo")
expect(bar).to eq(:foo)
end
end
RUBY
end
it 'flags literal nil value within expect(...)' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(nil).to eq(bar)
^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eq(nil)
end
end
RUBY
end
it 'does not flag dynamic values within expect(...)' do
expect_no_offenses(<<-'RUBY')
describe Foo do
it 'uses expect correctly' do
expect(foo).to eq(bar)
expect("foo#{baz}").to eq(bar)
expect(:"foo#{baz}").to eq(bar)
end
end
RUBY
end
it 'flags arrays containing only literal values within expect(...)' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect([123]).to eq(bar)
^^^^^ Provide the actual you are testing to `expect(...)`.
expect([[123]]).to eq(bar)
^^^^^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eq([123])
expect(bar).to eq([[123]])
end
end
RUBY
end
it 'flags hashes containing only literal values within expect(...)' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(foo: 1, bar: 2).to eq(bar)
^^^^^^^^^^^^^^ Provide the actual you are testing to `expect(...)`.
expect(foo: 1, bar: [{}]).to eq(bar)
^^^^^^^^^^^^^^^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eq(foo: 1, bar: 2)
expect(bar).to eq(foo: 1, bar: [{}])
end
end
RUBY
end
it 'flags ranges containing only literal values within expect(...)' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(1..2).to eq(bar)
^^^^ Provide the actual you are testing to `expect(...)`.
expect(1...2).to eq(bar)
^^^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eq(1..2)
expect(bar).to eq(1...2)
end
end
RUBY
end
it 'flags regexps containing only literal values within expect(...)' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(/foo|bar/).to eq(bar)
^^^^^^^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eq(/foo|bar/)
end
end
RUBY
end
it 'does not flag complex values with dynamic parts within expect(...)' do
expect_no_offenses(<<-'RUBY')
describe Foo do
it 'uses expect incorrectly' do
expect.to eq(bar)
expect([foo]).to eq(bar)
expect([[foo]]).to eq(bar)
expect(foo: 1, bar: foo).to eq(bar)
expect(1..foo).to eq(bar)
expect(1...foo).to eq(bar)
expect(/foo|#{bar}/).to eq(bar)
end
end
RUBY
end
it 'ignores `be` with no argument' do
expect_no_offenses(<<~RUBY)
describe Foo do
it 'uses expect legitimately' do
expect(1).to be
end
end
RUBY
end
it 'flags `be` with an argument' do
expect_offense(<<~RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(true).to be(a)
^^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<~RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(a).to be(true)
end
end
RUBY
end
it 'flags `be ==`' do
expect_offense(<<~RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(1).to be == a
^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<~RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(a).to be == 1
end
end
RUBY
end
it 'flags with `eql` matcher' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(1).to eql(bar)
^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to eql(1)
end
end
RUBY
end
it 'flags with `equal` matcher' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(1).to equal(bar)
^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_correction(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect(bar).to equal(1)
end
end
RUBY
end
it 'flags but does not autocorrect violations for other matchers' do
expect_offense(<<-RUBY)
describe Foo do
it 'uses expect incorrectly' do
expect([1,2,3]).to include(a)
^^^^^^^ Provide the actual you are testing to `expect(...)`.
end
end
RUBY
expect_no_corrections
end
context 'when inspecting rspec-rails routing specs' do
let(:cop_config) { {} }
it 'ignores rspec-rails routing specs' do
expect_no_offenses(
'expect(get: "/foo").to be_routeable',
'spec/routing/foo_spec.rb'
)
end
end
end