/
multiline_operation_indentation_spec.rb
710 lines (625 loc) · 17.5 KB
/
multiline_operation_indentation_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Layout::MultilineOperationIndentation, :config do
let(:config) do
merged = RuboCop::ConfigLoader
.default_configuration['Layout/MultilineOperationIndentation']
.merge(cop_config)
.merge('IndentationWidth' => cop_indent)
RuboCop::Config
.new('Layout/MultilineOperationIndentation' => 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 unary operations' do
expect_no_offenses(<<~RUBY)
call a,
!b
RUBY
end
it 'accepts indented operands in ordinary statement' do
expect_no_offenses(<<~RUBY)
a +
b
RUBY
end
it 'accepts indented operands inside and outside a block' do
expect_no_offenses(<<~RUBY)
a = b.map do |c|
c +
b +
d do
x +
y
end
end
RUBY
end
it 'registers an offense and corrects no indentation of second line' do
expect_offense(<<~RUBY)
a +
b
^ Use 2 (not 0) spaces for indenting an expression spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
a +
b
RUBY
end
it 'registers an offense and corrects one space indentation ' \
'of second line' do
expect_offense(<<~RUBY)
a +
b
^ Use 2 (not 1) spaces for indenting an expression spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
a +
b
RUBY
end
it 'does not check method calls' do
expect_no_offenses(<<~RUBY)
a
.(args)
Foo
.a
.b
Foo
.a
.b(c)
Foo.&(
foo,
bar
)
expect { Foo.new }.
to change { Bar.count }.
from(1).to(2)
RUBY
end
it 'registers an offense and corrects three space indentation ' \
'of second line' do
expect_offense(<<~RUBY)
a ||
b
^ Use 2 (not 3) spaces for indenting an expression spanning multiple lines.
c and
d
^ Use 2 (not 3) spaces for indenting an expression spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
a ||
b
c and
d
RUBY
end
it 'registers an offense and corrects extra indentation of third line' do
expect_offense(<<~RUBY)
a ||
b ||
c
^ Use 2 (not 4) spaces for indenting an expression spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
a ||
b ||
c
RUBY
end
it 'registers an offense and corrects emacs ruby-mode 1.1 indentation of ' \
'an expression in an array' do
expect_offense(<<~RUBY)
[
a +
b
^ Use 2 (not 0) spaces for indenting an expression spanning multiple lines.
]
RUBY
expect_correction(<<~RUBY)
[
a +
b
]
RUBY
end
it 'accepts indented operands in an array' do
expect_no_offenses(<<~RUBY)
dm[i][j] = [
dm[i-1][j-1] +
(this[j-1] == that[i-1] ? 0 : sub),
dm[i][j-1] + ins,
dm[i-1][j] + del
].min
RUBY
end
it 'accepts two spaces indentation in assignment of local variable' do
expect_no_offenses(<<~RUBY)
a =
'foo' +
'bar'
RUBY
end
it 'accepts two spaces indentation in assignment of array element' do
expect_no_offenses(<<~RUBY)
a['test'] =
'foo' +
'bar'
RUBY
end
it 'accepts two spaces indentation of second line' do
expect_no_offenses(<<~RUBY)
a ||
b
RUBY
end
it 'accepts no extra indentation of third line' do
expect_no_offenses(<<~RUBY)
a &&
b &&
c
RUBY
end
it 'accepts indented operands in for body' do
expect_no_offenses(<<~RUBY)
for x in a
something &&
something_else
end
RUBY
end
it 'accepts alignment inside a grouped expression' do
expect_no_offenses(<<~RUBY)
(a +
b)
RUBY
end
it 'accepts an expression where the first operand spans multiple lines' do
expect_no_offenses(<<~RUBY)
subject.each do |item|
result = resolve(locale) and return result
end and nil
RUBY
end
it 'accepts any indentation of parameters to #[]' do
expect_no_offenses(<<~RUBY)
payment = Models::IncomingPayments[
id: input['incoming-payment-id'],
user_id: @user[:id]]
RUBY
end
it 'registers an offense and corrects an unindented multiline operation ' \
'that is the left operand in another operation' do
expect_offense(<<~RUBY)
a +
b < 3
^ Use 2 (not 0) spaces for indenting an expression spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
a +
b < 3
RUBY
end
end
context 'when EnforcedStyle is aligned' do
let(:cop_config) { { 'EnforcedStyle' => 'aligned' } }
include_examples 'common'
it 'accepts aligned operands in if condition' do
expect_no_offenses(<<~RUBY)
if a +
b
something
end
RUBY
end
it 'registers an offense and corrects indented operands in if condition' do
expect_offense(<<~RUBY)
if a +
b
^ Align the operands of a condition in an `if` statement spanning multiple lines.
something
end
RUBY
expect_correction(<<~RUBY)
if a +
b
something
end
RUBY
end
it 'accepts indented code on LHS of equality operator' do
expect_no_offenses(<<~RUBY)
def config_to_allow_offenses
a +
b == c
end
RUBY
end
it 'accepts indented operands inside block + assignment' do
expect_no_offenses(<<~RUBY)
a = b.map do |c|
c +
d
end
requires_interpolation = node.children.any? do |s|
s.type == :dstr ||
s.loc.expression.source =~ REGEXP
end
RUBY
end
it 'accepts indented operands with ternary operators' do
expect_no_offenses(<<~RUBY)
one ||
two ? 3 : 5
RUBY
end
it 'registers an offense and corrects indented second part of string' do
expect_offense(<<~RUBY)
it "should convert " +
"a to " +
^^^^^^^ Align the operands of an expression spanning multiple lines.
"b" do
^^^ Align the operands of an expression spanning multiple lines.
end
RUBY
expect_correction(<<~RUBY)
it "should convert " +
"a to " +
"b" do
end
RUBY
end
it 'registers an offense and corrects indented operand ' \
'in second argument' do
expect_offense(<<~RUBY)
puts a, 1 +
2
^ Align the operands of an expression spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
puts a, 1 +
2
RUBY
end
it 'registers an offense and corrects misaligned string operand ' \
'when the first operand has backslash continuation' do
expect_offense(<<~'RUBY')
def f
flash[:error] = 'Here is a string ' \
'That spans' <<
'multiple lines'
^^^^^^^^^^^^^^^^ Align the operands of an expression in an assignment spanning multiple lines.
end
RUBY
expect_correction(<<~'RUBY')
def f
flash[:error] = 'Here is a string ' \
'That spans' <<
'multiple lines'
end
RUBY
end
it 'registers an offense and corrects misaligned string operand ' \
'when plus is used' do
expect_offense(<<~RUBY)
Error = 'Here is a string ' +
'That spans' <<
'multiple lines'
^^^^^^^^^^^^^^^^ Align the operands of an expression in an assignment spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
Error = 'Here is a string ' +
'That spans' <<
'multiple lines'
RUBY
end
it 'registers an offense and corrects misaligned operands ' \
'in unless condition' do
expect_offense(<<~RUBY)
unless a +
b
^ Align the operands of a condition in an `unless` statement spanning multiple lines.
something
end
RUBY
expect_correction(<<~RUBY)
unless a +
b
something
end
RUBY
end
[
%w[an if],
%w[an unless],
%w[a while],
%w[an until]
].each do |article, keyword|
it "registers an offense for misaligned operands in #{keyword} " \
'condition' do
expect_offense(<<~RUBY)
#{keyword} a or
b
^ Align the operands of a condition in #{article} `#{keyword}` statement spanning multiple lines.
something
end
RUBY
end
end
it 'accepts aligned operands in assignment' do
expect_no_offenses(<<~RUBY)
a = b +
c +
d
RUBY
end
it 'accepts aligned or:ed operands in assignment' do
expect_no_offenses(<<~RUBY)
tmp_dir = ENV['TMPDIR'] || ENV['TMP'] || ENV['TEMP'] ||
Etc.systmpdir || '/tmp'
RUBY
end
it 'registers an offense and corrects unaligned operands ' \
'in op-assignment' do
expect_offense(<<~RUBY)
bar *= Foo +
a +
^ Align the operands of an expression in an assignment spanning multiple lines.
b(c)
RUBY
expect_correction(<<~RUBY)
bar *= Foo +
a +
b(c)
RUBY
end
end
context 'when EnforcedStyle is indented' do
let(:cop_config) { { 'EnforcedStyle' => 'indented' } }
include_examples 'common'
it 'accepts indented operands in if condition' do
expect_no_offenses(<<~RUBY)
if a +
b
something
end
RUBY
end
it 'registers an offense and corrects aligned operands in if conditions' do
expect_offense(<<~RUBY)
if a +
b
^ Use 4 (not 3) spaces for indenting a condition in an `if` statement spanning multiple lines.
something
end
RUBY
expect_correction(<<~RUBY)
if a +
b
something
end
RUBY
end
it 'accepts the indentation of a broken string' do
expect_no_offenses(<<~'RUBY')
MSG = 'Use 2 (not %d) spaces for indenting a ' \
'broken line.'
RUBY
end
it 'accepts normal indentation of method parameters' do
expect_no_offenses(<<~RUBY)
Parser::Source::Range.new(expr.source_buffer,
begin_pos,
begin_pos + line.length)
RUBY
end
it 'accepts any indentation of method parameters' do
expect_no_offenses(<<~RUBY)
a(b +
c +
d)
RUBY
end
it 'accepts normal indentation inside grouped expression' do
expect_no_offenses(<<~RUBY)
arg_array.size == a.size && (
arg_array == a ||
arg_array.map(&:children) == a.map(&:children)
)
RUBY
end
it 'registers an offense and corrects aligned code on LHS ' \
'of equality operator' do
expect_offense(<<~RUBY)
def config_to_allow_offenses
a +
b == c
^ Use 2 (not 0) spaces for indenting an expression spanning multiple lines.
end
RUBY
expect_correction(<<~RUBY)
def config_to_allow_offenses
a +
b == c
end
RUBY
end
[
%w[an if],
%w[an unless],
%w[a while],
%w[an until]
].each do |article, keyword|
it "accepts double indentation of #{keyword} condition" do
expect_no_offenses(<<~RUBY)
#{keyword} receiver.nil? &&
!args.empty? &&
FORBIDDEN_METHODS.include?(method_name)
end
#{keyword} receiver.
nil?
end
RUBY
end
it "registers an offense for a 2 space indentation of #{keyword} " \
'condition' do
expect_offense(<<~RUBY)
#{keyword} receiver.nil? &&
!args.empty? &&
^^^^^^^^^^^^ Use 4 (not 2) spaces for indenting a condition in #{article} `#{keyword}` statement spanning multiple lines.
FORBIDDEN_METHODS.include?(method_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use 4 (not 2) spaces for indenting a condition in #{article} `#{keyword}` statement spanning multiple lines.
end
RUBY
end
it "accepts indented operands in #{keyword} body" do
expect_no_offenses(<<~RUBY)
#{keyword} a
something &&
something_else
end
RUBY
end
end
%w[unless if].each do |keyword|
it "accepts indentation of return #{keyword} condition" do
expect_no_offenses(<<~RUBY)
return #{keyword} receiver.nil? &&
!args.empty? &&
FORBIDDEN_METHODS.include?(method_name)
RUBY
end
it "accepts indentation of next #{keyword} condition" do
expect_no_offenses(<<~RUBY)
next #{keyword} 5 ||
7
RUBY
end
end
it 'registers an offense and corrects wrong indentation ' \
'of for expression' do
expect_offense(<<~RUBY)
for n in a +
b
^ Use 4 (not 2) spaces for indenting a collection in a `for` statement spanning multiple lines.
end
RUBY
expect_correction(<<~RUBY)
for n in a +
b
end
RUBY
end
it 'accepts special indentation of for expression' do
expect_no_offenses(<<~RUBY)
for n in a +
b
end
RUBY
end
it 'accepts indentation of assignment' do
expect_no_offenses(<<~RUBY)
a = b +
c +
d
RUBY
end
it 'registers an offense and corrects correct + unrecognized style' do
expect_offense(<<~RUBY)
a ||
b
c and
d
^ Use 2 (not 4) spaces for indenting an expression spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
a ||
b
c and
d
RUBY
end
it 'registers an offense and corrects aligned operators in assignment' do
expect_offense(<<~RUBY)
a = b +
c +
^ Use 2 (not 4) spaces for indenting an expression in an assignment spanning multiple lines.
d
^ Use 2 (not 4) spaces for indenting an expression in an assignment spanning multiple lines.
RUBY
expect_correction(<<~RUBY)
a = b +
c +
d
RUBY
end
context 'when indentation width is overridden for this cop' do
let(:cop_indent) { 6 }
it 'accepts indented operands in if condition' do
expect_no_offenses(<<~RUBY)
if a +
b
something
end
RUBY
end
[
%w[an if],
%w[an unless],
%w[a while],
%w[an until]
].each do |article, keyword|
it "accepts indentation of #{keyword} condition which is offset " \
'by a single normal indentation step' do
# normal code indentation is 2 spaces, and we have configured
# multiline method indentation to 6 spaces
# so in this case, 8 spaces are required
expect_no_offenses(<<~RUBY)
#{keyword} receiver.nil? &&
!args.empty? &&
FORBIDDEN_METHODS.include?(method_name)
end
#{keyword} receiver.
nil?
end
RUBY
end
it "registers an offense for a 4 space indentation of #{keyword} " \
'condition' do
expect_offense(<<~RUBY)
#{keyword} receiver.nil? &&
!args.empty? &&
^^^^^^^^^^^^ Use 8 (not 4) spaces for indenting a condition in #{article} `#{keyword}` statement spanning multiple lines.
FORBIDDEN_METHODS.include?(method_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use 8 (not 4) spaces for indenting a condition in #{article} `#{keyword}` statement spanning multiple lines.
end
RUBY
end
it "accepts indented operands in #{keyword} body" do
expect_no_offenses(<<~RUBY)
#{keyword} a
something &&
something_else
end
RUBY
end
end
it 'registers an offense and corrects' do
expect_offense(<<~RUBY)
until a +
b
^ Use 8 (not 6) spaces for indenting a condition in an `until` statement spanning multiple lines.
something
end
RUBY
expect_correction(<<~RUBY)
until a +
b
something
end
RUBY
end
end
end
end