forked from rubocop/rubocop
/
mixin_usage_spec.rb
178 lines (157 loc) · 4.2 KB
/
mixin_usage_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Style::MixinUsage do
subject(:cop) { described_class.new }
context 'include' do
it 'registers an offense when using outside class (used above)' do
expect_offense(<<~RUBY)
include M
^^^^^^^^^ `include` is used at the top level. Use inside `class` or `module`.
class C
end
RUBY
end
it 'registers an offense when using outside class (used below)' do
expect_offense(<<~RUBY)
class C
end
include M
^^^^^^^^^ `include` is used at the top level. Use inside `class` or `module`.
RUBY
end
it 'registers an offense when using only `include` statement' do
expect_offense(<<~RUBY)
include M
^^^^^^^^^ `include` is used at the top level. Use inside `class` or `module`.
RUBY
end
it 'registers an offense when using `include` in method definition ' \
'outside class or module' do
expect_offense(<<~RUBY)
def foo
include M
^^^^^^^^^ `include` is used at the top level. Use inside `class` or `module`.
end
RUBY
end
it 'does not register an offense when using outside class' do
expect_no_offenses(<<~RUBY)
Foo.include M
class C; end
RUBY
end
it 'does not register an offense when using inside class' do
expect_no_offenses(<<~RUBY)
class C
include M
end
RUBY
end
it 'does not register an offense when using inside block' do
expect_no_offenses(<<~RUBY)
Class.new do
include M
end
RUBY
end
it 'does not register an offense when using inside block ' \
'and `if` condition is after `include`' do
expect_no_offenses(<<~RUBY)
klass.class_eval do
include M1
include M2 if defined?(M)
end
RUBY
end
it "doesn't register an offense when `include` call is a method argument" do
expect_no_offenses(<<~RUBY)
do_something(include(M))
RUBY
end
it 'does not register an offense when using `include` in method ' \
'definition inside class' do
expect_no_offenses(<<~RUBY)
class X
def foo
include M
end
end
RUBY
end
it 'does not register an offense when using `include` in method ' \
'definition inside module' do
expect_no_offenses(<<~RUBY)
module X
def foo
include M
end
end
RUBY
end
context 'Multiple definition classes in one' do
it 'does not register an offense when using inside class' do
expect_no_offenses(<<~RUBY)
class C1
include M
end
class C2
include M
end
RUBY
end
end
context 'Nested module' do
it 'registers an offense when using outside class' do
expect_offense(<<~RUBY)
include M1::M2::M3
^^^^^^^^^^^^^^^^^^ `include` is used at the top level. Use inside `class` or `module`.
class C
end
RUBY
end
end
end
context 'extend' do
it 'registers an offense when using outside class' do
expect_offense(<<~RUBY)
extend M
^^^^^^^^ `extend` is used at the top level. Use inside `class` or `module`.
class C
end
RUBY
end
it 'does not register an offense when using inside class' do
expect_no_offenses(<<~RUBY)
class C
extend M
end
RUBY
end
end
context 'prepend' do
it 'registers an offense when using outside class' do
expect_offense(<<~RUBY)
prepend M
^^^^^^^^^ `prepend` is used at the top level. Use inside `class` or `module`.
class C
end
RUBY
end
it 'does not register an offense when using inside class' do
expect_no_offenses(<<~RUBY)
class C
prepend M
end
RUBY
end
end
it 'does not register an offense when using inside nested module' do
expect_no_offenses(<<~RUBY)
module M1
include M2
class C
include M3
end
end
RUBY
end
end