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empty_lines_around_module_body_spec.rb
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empty_lines_around_module_body_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Layout::EmptyLinesAroundModuleBody, :config do
let(:extra_begin) { 'Extra empty line detected at module body beginning.' }
let(:extra_end) { 'Extra empty line detected at module body end.' }
let(:missing_begin) { 'Empty line missing at module body beginning.' }
let(:missing_end) { 'Empty line missing at module body end.' }
let(:missing_def) { 'Empty line missing before first def definition' }
let(:missing_type) { 'Empty line missing before first module definition' }
context 'when EnforcedStyle is no_empty_lines' do
let(:cop_config) { { 'EnforcedStyle' => 'no_empty_lines' } }
it 'registers an offense for module body starting with a blank' do
inspect_source(<<~RUBY)
module SomeModule
do_something
end
RUBY
expect(cop.messages).to eq([extra_begin])
end
it 'registers an offense for module body ending with a blank' do
inspect_source(<<~RUBY)
module SomeModule
do_something
end
RUBY
expect(cop.messages).to eq([extra_end])
end
it 'autocorrects beginning and end' do
new_source = autocorrect_source(<<~RUBY)
module SomeModule
do_something
end
RUBY
expect(new_source).to eq(<<~RUBY)
module SomeModule
do_something
end
RUBY
end
end
context 'when EnforcedStyle is empty_lines' do
let(:cop_config) { { 'EnforcedStyle' => 'empty_lines' } }
it 'registers an offense for module body not starting or ending with a ' \
'blank' do
inspect_source(<<~RUBY)
module SomeModule
do_something
end
RUBY
expect(cop.messages).to eq([missing_begin, missing_end])
end
it 'registers an offense for module body not ending with a blank' do
expect_offense(<<~RUBY)
module SomeModule
do_something
end
^ Empty line missing at module body end.
RUBY
end
it 'autocorrects beginning and end' do
new_source = autocorrect_source(<<~RUBY)
module SomeModule
do_something
end
RUBY
expect(new_source).to eq(<<~RUBY)
module SomeModule
do_something
end
RUBY
end
it 'accepts modules with an empty body' do
expect_no_offenses(<<~RUBY)
module A
end
RUBY
end
end
context 'when EnforcedStyle is empty_lines_except_namespace' do
let(:cop_config) { { 'EnforcedStyle' => 'empty_lines_except_namespace' } }
context 'when only child is class' do
it 'requires no empty lines for namespace' do
expect_no_offenses(<<~RUBY)
module Parent
module Child
do_something
end
end
RUBY
end
it 'registers offense for namespace body starting with a blank' do
inspect_source(<<~RUBY)
module Parent
module Child
do_something
end
end
RUBY
expect(cop.messages).to eq([extra_begin])
end
it 'registers offense for namespace body ending with a blank' do
inspect_source(<<~RUBY)
module Parent
module Child
do_something
end
end
RUBY
expect(cop.messages).to eq([extra_end])
end
it 'registers offenses for namespaced module body not starting '\
'with a blank' do
inspect_source(<<~RUBY)
module Parent
module Child
do_something
end
end
RUBY
expect(cop.messages).to eq([missing_begin])
end
it 'registers offenses for namespaced module body not ending '\
'with a blank' do
inspect_source(<<~RUBY)
module Parent
module Child
do_something
end
end
RUBY
expect(cop.messages).to eq([missing_end])
end
it 'autocorrects beginning and end' do
new_source = autocorrect_source(<<~RUBY)
module Parent
module Child
do_something
end
end
RUBY
expect(new_source).to eq(<<~RUBY)
module Parent
module Child
do_something
end
end
RUBY
end
end
context 'when only child is class' do
it 'requires no empty lines for namespace' do
expect_no_offenses(<<~RUBY)
module Parent
class SomeClass
do_something
end
end
RUBY
end
it 'registers offense for namespace body starting with a blank' do
inspect_source(<<~RUBY)
module Parent
class SomeClass
do_something
end
end
RUBY
expect(cop.messages).to eq([extra_begin])
end
it 'registers offense for namespace body ending with a blank' do
inspect_source(<<~RUBY)
module Parent
class SomeClass
do_something
end
end
RUBY
expect(cop.messages).to eq([extra_end])
end
end
context 'when has multiple child modules' do
it 'requires empty lines for namespace' do
expect_no_offenses(<<~RUBY)
module Parent
module Mom
do_something
end
module Dad
end
end
RUBY
end
it 'registers offenses for namespace body starting '\
'and ending without a blank' do
inspect_source(<<~RUBY)
module Parent
module Mom
do_something
end
module Dad
end
end
RUBY
expect(cop.messages).to eq([missing_begin, missing_end])
end
end
end
include_examples 'empty_lines_around_class_or_module_body', 'module'
end