/
self_assignment_spec.rb
134 lines (113 loc) · 3.36 KB
/
self_assignment_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Lint::SelfAssignment do
subject(:cop) { described_class.new }
it 'registers an offense when using local var self-assignment' do
expect_offense(<<~RUBY)
foo = foo
^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'does not register an offense when using local var assignment' do
expect_no_offenses(<<~RUBY)
foo = bar
RUBY
end
it 'registers an offense when using instance var self-assignment' do
expect_offense(<<~RUBY)
@foo = @foo
^^^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'does not register an offense when using instance var assignment' do
expect_no_offenses(<<~RUBY)
@foo = @bar
RUBY
end
it 'registers an offense when using class var self-assignment' do
expect_offense(<<~RUBY)
@@foo = @@foo
^^^^^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'does not register an offense when using class var assignment' do
expect_no_offenses(<<~RUBY)
@@foo = @@bar
RUBY
end
it 'registers an offense when using global var self-assignment' do
expect_offense(<<~RUBY)
$foo = $foo
^^^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'does not register an offense when using global var assignment' do
expect_no_offenses(<<~RUBY)
$foo = $bar
RUBY
end
it 'registers an offense when using constant var self-assignment' do
expect_offense(<<~RUBY)
Foo = Foo
^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'does not register an offense when using constant var assignment for constant from another scope' do
expect_no_offenses(<<~RUBY)
Foo = ::Foo
RUBY
end
it 'does not register an offense when using constant var or-assignment for constant from another scope' do
expect_no_offenses(<<~RUBY)
Foo ||= ::Foo
RUBY
end
it 'registers an offense when using multiple var self-assignment' do
expect_offense(<<~RUBY)
foo, bar = foo, bar
^^^^^^^^^^^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'registers an offense when using multiple var self-assignment through array' do
expect_offense(<<~RUBY)
foo, bar = [foo, bar]
^^^^^^^^^^^^^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'does not register an offense when using multiple var assignment' do
expect_no_offenses(<<~RUBY)
foo, bar = bar, foo
RUBY
end
it 'does not register an offense when using multiple var assignment through splat' do
expect_no_offenses(<<~RUBY)
foo, bar = *something
RUBY
end
it 'does not register an offense when using multiple var assignment through method call' do
expect_no_offenses(<<~RUBY)
foo, bar = something
RUBY
end
it 'registers an offense when using shorthand-or var self-assignment' do
expect_offense(<<~RUBY)
foo ||= foo
^^^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'does not register an offense when using shorthand-or var assignment' do
expect_no_offenses(<<~RUBY)
foo ||= bar
RUBY
end
it 'registers an offense when using shorthand-and var self-assignment' do
expect_offense(<<~RUBY)
foo &&= foo
^^^^^^^^^^^ Self-assignment detected.
RUBY
end
it 'does not register an offense when using shorthand-and var assignment' do
expect_no_offenses(<<~RUBY)
foo &&= bar
RUBY
end
end