/
heredoc_indentation_spec.rb
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/
heredoc_indentation_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Layout::HeredocIndentation, :config do
let(:allow_heredoc) { true }
let(:other_cops) do
{
'Layout/LineLength' => { 'Max' => 5, 'AllowHeredoc' => allow_heredoc }
}
end
shared_examples 'all heredoc type' do |quote|
context "quoted by #{quote}" do
it 'does not register an offense when not indented but with ' \
'whitespace, with `-`' do
expect_no_offenses(<<-RUBY)
def foo
<<-#{quote}RUBY2#{quote}
something
RUBY2
end
RUBY
end
it 'accepts for indented, but with `-`' do
expect_no_offenses(<<~RUBY)
def foo
<<-#{quote}RUBY2#{quote}
something
RUBY2
end
RUBY
end
it 'accepts for not indented but with whitespace' do
expect_no_offenses(<<~RUBY)
def foo
<<#{quote}RUBY2#{quote}
something
RUBY2
end
RUBY
end
it 'accepts for indented, but without `~`' do
expect_no_offenses(<<~RUBY)
def foo
<<#{quote}RUBY2#{quote}
something
RUBY2
end
RUBY
end
it 'accepts for an empty line' do
expect_no_offenses(<<~RUBY)
<<-#{quote}RUBY2#{quote}
RUBY2
RUBY
end
context 'when Layout/LineLength is configured' do
let(:allow_heredoc) { false }
it 'accepts for long heredoc' do
expect_no_offenses(<<~RUBY)
<<#{quote}RUBY2#{quote}
12345678
RUBY2
RUBY
end
end
it 'registers an offense for not indented' do
expect_offense(<<~RUBY)
<<~#{quote}RUBY2#{quote}
something
^^^^^^^^^ Use 2 spaces for indentation in a heredoc.
RUBY2
RUBY
expect_correction(<<~CORRECTION)
<<~#{quote}RUBY2#{quote}
something
RUBY2
CORRECTION
end
it 'registers an offense for minus level indented' do
expect_offense(<<~RUBY)
def foo
<<~#{quote}RUBY2#{quote}
something
^^^^^^^^^ Use 2 spaces for indentation in a heredoc.
RUBY2
end
RUBY
expect_correction(<<~CORRECTION)
def foo
<<~#{quote}RUBY2#{quote}
something
RUBY2
end
CORRECTION
end
it 'registers an offense for too deep indented' do
expect_offense(<<~RUBY)
<<~#{quote}RUBY2#{quote}
something
^^^^^^^^^^^^^ Use 2 spaces for indentation in a heredoc.
RUBY2
RUBY
expect_correction(<<~CORRECTION)
<<~#{quote}RUBY2#{quote}
something
RUBY2
CORRECTION
end
it 'registers an offense for not indented, without `~`' do
expect_offense(<<~RUBY)
<<#{quote}RUBY2#{quote}
foo
^^^ Use 2 spaces for indentation in a heredoc by using `<<~` instead of `<<`.
RUBY2
RUBY
expect_correction(<<~CORRECTION)
<<~#{quote}RUBY2#{quote}
foo
RUBY2
CORRECTION
end
it 'registers an offense for not indented, with `~`' do
expect_offense(<<~RUBY)
<<~#{quote}RUBY2#{quote}
foo
^^^ Use 2 spaces for indentation in a heredoc.
RUBY2
RUBY
expect_correction(<<~CORRECTION)
<<~#{quote}RUBY2#{quote}
foo
RUBY2
CORRECTION
end
it 'registers an offense for first line minus-level indented, with `-`' do
expect_offense(<<~RUBY)
puts <<-#{quote}RUBY2#{quote}
def foo
^^^^^^^ Use 2 spaces for indentation in a heredoc by using `<<~` instead of `<<-`.
bar
end
RUBY2
RUBY
expect_correction(<<-CORRECTION)
puts <<~#{quote}RUBY2#{quote}
def foo
bar
end
RUBY2
CORRECTION
end
it 'accepts for indented, with `~`' do
expect_no_offenses(<<~RUBY)
<<~#{quote}RUBY2#{quote}
something
RUBY2
RUBY
end
it 'accepts for include empty lines' do
expect_no_offenses(<<~RUBY)
<<~#{quote}MSG#{quote}
foo
bar
MSG
RUBY
end
{ empty: '', whitespace: ' ' }.each do |description, line|
it "registers an offense for not indented enough with #{description} line" do
# Using <<- in this section makes the code more readable.
# rubocop:disable Layout/HeredocIndentation
expect_offense(<<-RUBY)
def baz
<<~#{quote}MSG#{quote}
foo
^^^^^^^^^^^^^^^^^ Use 2 spaces for indentation in a heredoc.
#{line}
bar
MSG
end
RUBY
expect_correction(<<-CORRECTION)
def baz
<<~#{quote}MSG#{quote}
foo
#{line}
bar
MSG
end
CORRECTION
end
it "registers an offense for too deep indented with #{description} line" do
expect_offense(<<-RUBY)
<<~#{quote}RUBY2#{quote}
foo
^^^^^^^^^^^^^^^^^^^^^ Use 2 spaces for indentation in a heredoc.
#{line}
bar
RUBY2
RUBY
expect_correction(<<-CORRECTION)
<<~#{quote}RUBY2#{quote}
foo
#{line}
bar
RUBY2
CORRECTION
end
# rubocop:enable Layout/HeredocIndentation
end
it 'displays message to use `<<~` instead of `<<`' do
expect_offense(<<~RUBY)
<<RUBY2
foo
^^^ Use 2 spaces for indentation in a heredoc by using `<<~` instead of `<<`.
RUBY2
RUBY
end
it 'displays message to use `<<~` instead of `<<-`' do
expect_offense(<<~RUBY)
<<-RUBY2
foo
^^^ Use 2 spaces for indentation in a heredoc by using `<<~` instead of `<<-`.
RUBY2
RUBY
end
end
end
[nil, "'", '"', '`'].each do |quote|
include_examples 'all heredoc type', quote
end
end