/
case_equality_spec.rb
114 lines (90 loc) · 3.04 KB
/
case_equality_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Style::CaseEquality, :config do
shared_examples 'offenses' do
it 'does not fail when the receiver is implicit' do
expect_no_offenses(<<~RUBY)
puts "No offense"
RUBY
end
it 'does not register an offense for === when the receiver is not a camel cased constant' do
expect_no_offenses(<<~RUBY)
REGEXP_CONSTANT === var
RUBY
end
it 'registers an offense and corrects for === when the receiver is a regexp' do
expect_offense(<<~RUBY)
/OMG/ === var
^^^ Avoid the use of the case equality operator `===`.
RUBY
# This correction is expected to be supported by `Performance/Regexp`.
expect_no_corrections
end
it 'registers an offense and corrects for === when the receiver is a range' do
expect_offense(<<~RUBY)
(1..10) === var
^^^ Avoid the use of the case equality operator `===`.
RUBY
expect_correction(<<~RUBY)
(1..10).include?(var)
RUBY
end
it 'registers an offense and does not correct for === when receiver is of some other type' do
expect_offense(<<~RUBY)
foo === var
^^^ Avoid the use of the case equality operator `===`.
RUBY
expect_no_corrections
end
end
context 'when AllowOnConstant is false' do
let(:cop_config) { { 'AllowOnConstant' => false } }
it 'registers an offense and corrects for === when the receiver is a constant' do
expect_offense(<<~RUBY)
Array === var
^^^ Avoid the use of the case equality operator `===`.
RUBY
expect_correction(<<~RUBY)
var.is_a?(Array)
RUBY
end
include_examples 'offenses'
end
context 'when AllowOnConstant is true' do
let(:cop_config) { { 'AllowOnConstant' => true } }
it 'does not register an offense for === when the receiver is a constant' do
expect_no_offenses(<<~RUBY)
Array === var
RUBY
end
include_examples 'offenses'
end
context 'when AllowOnSelfClass is false' do
let(:cop_config) { { 'AllowOnSelfClass' => false } }
it 'registers an offense and corrects for === when the receiver is self.class' do
expect_offense(<<~RUBY)
self.class === var
^^^ Avoid the use of the case equality operator `===`.
RUBY
expect_correction(<<~RUBY)
var.is_a?(self.class)
RUBY
end
include_examples 'offenses'
end
context 'when AllowOnSelfClass is true' do
let(:cop_config) { { 'AllowOnSelfClass' => true } }
it 'does not register an offense for === when the receiver is self.class' do
expect_no_offenses(<<~RUBY)
self.class === var
RUBY
end
it 'registers an offense and corrects for === when the receiver is self.klass' do
expect_offense(<<~RUBY)
self.klass === var
^^^ Avoid the use of the case equality operator `===`.
RUBY
expect_no_corrections
end
include_examples 'offenses'
end
end