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/
line_end_string_concatenation_indentation_spec.rb
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/
line_end_string_concatenation_indentation_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Layout::LineEndStringConcatenationIndentation, :config do
let(:config) do
merged = RuboCop::ConfigLoader
.default_configuration['Layout/LineEndStringConcatenationIndentation']
.merge(cop_config)
.merge('IndentationWidth' => cop_indent)
RuboCop::Config
.new('Layout/LineEndStringConcatenationIndentation' => merged,
'Layout/IndentationWidth' => { 'Width' => indentation_width })
end
let(:indentation_width) { 2 }
let(:cop_indent) { nil } # use indentation width from Layout/IndentationWidth
shared_examples 'common' do
it 'accepts single line string literal concatenation' do
expect_no_offenses(<<~'RUBY')
text = 'offense'
puts 'This probably should not be '"an #{text}"
RUBY
end
it 'accepts string literal with line break concatenated with other string' do
expect_no_offenses(<<~'RUBY')
text = 'offense'
puts 'This probably
should not be '"an #{text}"
RUBY
end
it 'accepts a multiline string literal' do
expect_no_offenses(<<~'RUBY')
puts %(
foo
bar
)
RUBY
end
it 'accepts indented strings in implicit return statement of a block' do
expect_no_offenses(<<~'RUBY')
some_method do
'a' \
'b' \
'c'
end
RUBY
end
it 'registers an offense for unaligned strings in hash literal values' do
expect_offense(<<~'RUBY')
MESSAGES = { KeyAlignment => 'Align the keys of a hash literal if ' \
'they span more than one line.',
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Align parts of a string concatenated with backslash.
SeparatorAlignment => 'Align the separators of a hash ' \
'literal if they span more than one line.',
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Align parts of a string concatenated with backslash.
TableAlignment => 'Align the keys and values of a hash ' \
'literal if they span more than one line.' }.freeze
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Align parts of a string concatenated with backslash.
RUBY
expect_correction(<<~'RUBY')
MESSAGES = { KeyAlignment => 'Align the keys of a hash literal if ' \
'they span more than one line.',
SeparatorAlignment => 'Align the separators of a hash ' \
'literal if they span more than one line.',
TableAlignment => 'Align the keys and values of a hash ' \
'literal if they span more than one line.' }.freeze
RUBY
end
it 'accepts indented strings in implicit return statement of a method definition' do
expect_no_offenses(<<~'RUBY')
def some_method
'a' \
'b' \
'c'
end
RUBY
end
it 'registers an offense for aligned strings in an if/elif/else statement' do
expect_offense(<<~'RUBY')
if cond1
'a' \
'b'
^^^ Indent the first part of a string concatenated with backslash.
elif cond2
'c' \
'd'
^^^ Indent the first part of a string concatenated with backslash.
else
'e' \
'f'
^^^ Indent the first part of a string concatenated with backslash.
end
RUBY
expect_correction(<<~'RUBY')
if cond1
'a' \
'b'
elif cond2
'c' \
'd'
else
'e' \
'f'
end
RUBY
end
it 'accepts indented strings in implicit return statement of a singleton method definition' do
expect_no_offenses(<<~'RUBY')
def self.some_method
'a' \
'b' \
'c'
end
RUBY
end
it 'accepts indented strings in implicit return statement of a method definition after other statement' do
expect_no_offenses(<<~'RUBY')
def some_method
b = 'b'
'a' \
"#{b}" \
'c'
end
RUBY
end
it 'accepts indented strings in ordinary statement' do
expect_no_offenses(<<~'RUBY')
'a' \
'b' \
'c'
RUBY
end
it 'accepts a heredoc string with interpolation' do
expect_no_offenses(<<~'RUBY')
warn <<~TEXT
A #{b}
TEXT
RUBY
end
it 'accepts a heredoc string ...' do
expect_no_offenses(<<~'RUBY')
let(:source) do
<<~CODE
func({
@abc => 0,
@xyz => 1
})
func(
{
abc: 0
}
)
func(
{},
{
xyz: 1
}
)
CODE
end
RUBY
end
it 'accepts an empty heredoc string with interpolation' do
expect_no_offenses(<<~'RUBY')
puts(<<~TEXT)
TEXT
RUBY
end
end
context 'when EnforcedStyle is aligned' do
let(:cop_config) { { 'EnforcedStyle' => 'aligned' } }
include_examples 'common'
it 'accepts aligned strings in method call' do
expect_no_offenses(<<~'RUBY')
puts 'a' \
'b'
RUBY
end
['X =', '$x =', '@x =', 'x =', 'x +=', 'x ||='].each do |lhs_and_operator|
context "for assignment with #{lhs_and_operator}" do
let(:aligned_strings) do
[%(#{lhs_and_operator} "a" \\),
"#{' ' * lhs_and_operator.length} 'b'",
''].join("\n")
end
it 'accepts aligned strings' do
expect_no_offenses(aligned_strings)
end
it 'registers an offense for indented strings' do
expect_offense([%(#{lhs_and_operator} "a" \\),
" 'b'",
' ^^^ Align parts of a string concatenated with backslash.',
''].join("\n"))
expect_correction(aligned_strings)
end
end
end
it 'registers an offense for indented string' do
expect_offense(<<~'RUBY')
puts 'a' \
"b" \
^^^ Align parts of a string concatenated with backslash.
'c'
RUBY
expect_correction(<<~'RUBY')
puts 'a' \
"b" \
'c'
RUBY
end
it 'registers an offense for third part of a string if it is aligned only with the first' do
expect_offense(<<~'RUBY')
puts 'a' \
'b' \
^^^ Align parts of a string concatenated with backslash.
'c'
^^^ Align parts of a string concatenated with backslash.
RUBY
expect_correction(<<~'RUBY')
puts 'a' \
'b' \
'c'
RUBY
end
end
context 'when EnforcedStyle is indented' do
let(:cop_config) { { 'EnforcedStyle' => 'indented' } }
include_examples 'common'
it 'accepts indented strings' do
expect_no_offenses(<<~'RUBY')
puts 'a' \
'b'
RUBY
end
['X =', '$x =', '@x =', 'x =', 'x +=', 'x ||='].each do |lhs_and_operator|
context "for assignment with #{lhs_and_operator}" do
let(:indented_strings) do
[%(#{lhs_and_operator} "a" \\),
" 'b'",
''].join("\n")
end
it 'accepts indented strings' do
expect_no_offenses(indented_strings)
end
it 'registers an offense for aligned strings' do
margin = "#{' ' * lhs_and_operator.length} " # Including spaces around operator.
expect_offense(
[%(#{lhs_and_operator} "a" \\),
"#{margin}'b'",
"#{margin}^^^ Indent the first part of a string concatenated with backslash.",
''].join("\n")
)
expect_correction(indented_strings)
end
end
end
it 'registers an offense for aligned string' do
expect_offense(<<~'RUBY')
puts %Q(a) \
'b' \
^^^ Indent the first part of a string concatenated with backslash.
'c'
RUBY
expect_correction(<<~'RUBY')
puts %Q(a) \
'b' \
'c'
RUBY
end
it 'registers an offense for unaligned third part of string' do
expect_offense(<<~'RUBY')
puts 'a' \
"#{b}" \
"#{c}"
^^^^^^ Align parts of a string concatenated with backslash.
RUBY
expect_correction(<<~'RUBY')
puts 'a' \
"#{b}" \
"#{c}"
RUBY
end
context 'when IndentationWidth is 1' do
let(:cop_indent) { 1 }
it 'accepts indented strings' do
expect_no_offenses(<<~'RUBY')
puts 'a' \
'b'
RUBY
end
end
end
end