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ambiguous_regexp_literal_spec.rb
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ambiguous_regexp_literal_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Lint::AmbiguousRegexpLiteral, :config do
context 'with a regexp literal in the first argument' do
context 'without parentheses' do
it 'registers an offense and corrects when single argument' do
expect_offense(<<~RUBY)
p /pattern/
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
expect_correction(<<~RUBY)
p(/pattern/)
RUBY
end
it 'registers an offense and corrects when multiple arguments' do
expect_offense(<<~RUBY)
p /pattern/, foo
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
expect_correction(<<~RUBY)
p(/pattern/, foo)
RUBY
end
it 'registers an offense and corrects when sending method to regexp without argument' do
expect_offense(<<~RUBY)
p /pattern/.do_something
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
expect_correction(<<~RUBY)
p(/pattern/.do_something)
RUBY
end
it 'registers an offense and corrects when sending method to regexp with argument' do
expect_offense(<<~RUBY)
p /pattern/.do_something(42)
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
expect_correction(<<~RUBY)
p(/pattern/.do_something(42))
RUBY
end
it 'registers an offense and corrects when sending method chain to regexp' do
expect_offense(<<~RUBY)
p /pattern/.do_something.do_something
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
expect_correction(<<~RUBY)
p(/pattern/.do_something.do_something)
RUBY
end
it 'registers an offense and corrects when using regexp without method call in a nested structure' do
expect_offense(<<~RUBY)
class MyTest
test '#foo' do
assert_match /expected/, actual
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
end
end
RUBY
expect_correction(<<~RUBY)
class MyTest
test '#foo' do
assert_match(/expected/, actual)
end
end
RUBY
end
it 'registers an offense and corrects when sending method inside parens without receiver takes a regexp argument' do
expect_offense(<<~RUBY)
expect('RuboCop').to(match /Cop/)
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
expect_correction(<<~RUBY)
expect('RuboCop').to(match(/Cop/))
RUBY
end
it 'registers an offense and corrects when sending method without receiver takes a regexp argument' do
expect_offense(<<~RUBY)
expect('Rubocop').to match /Robo/
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
expect_correction(<<~RUBY)
expect('Rubocop').to match(/Robo/)
RUBY
end
it 'registers an offense and corrects when using block argument' do
expect_offense(<<~RUBY)
p /pattern/, foo do |arg|
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
end
RUBY
expect_correction(<<~RUBY)
p(/pattern/, foo) do |arg|
end
RUBY
end
it 'registers an offense and corrects when nesting' do
expect_offense(<<~RUBY)
p /pattern/ do
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
p /pattern/
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
end
RUBY
expect_correction(<<~RUBY)
p(/pattern/) do
p(/pattern/)
end
RUBY
end
it 'registers an offense and corrects when using nested method arguments without parentheses' do
expect_offense(<<~RUBY)
puts line.grep /pattern/
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
expect_correction(<<~RUBY)
puts line.grep(/pattern/)
RUBY
end
end
context 'with parentheses' do
it 'accepts' do
expect_no_offenses('p(/pattern/)')
end
end
context 'with `match_with_lvasgn` node' do
context 'with parentheses' do
it 'does not register an offense' do
expect_no_offenses(<<~RUBY)
assert(/some pattern/ =~ some_string)
RUBY
end
end
context 'with different parentheses' do
it 'does not register an offense' do
expect_no_offenses(<<~RUBY)
assert(/some pattern/) =~ some_string
RUBY
end
end
context 'without parentheses' do
it 'registers an offense and corrects' do
expect_offense(<<~RUBY)
assert /some pattern/ =~ some_string
^ Ambiguous regexp literal. Parenthesize the method arguments if it's surely a regexp literal, or add a whitespace to the right of the `/` if it should be a division.
RUBY
# Spacing will be fixed by `Lint/ParenthesesAsGroupedExpression`.
expect_correction(<<~RUBY)
assert (/some pattern/ =~ some_string)
RUBY
end
end
end
end
end