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hash_syntax_spec.rb
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hash_syntax_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::Cop::Style::HashSyntax, :config do
context 'configured to enforce ruby19 style' do
context 'with SpaceAroundOperators enabled' do
let(:config) do
RuboCop::Config.new('AllCops' => {
'TargetRubyVersion' => ruby_version
},
'Style/HashSyntax' => cop_config,
'Layout/SpaceAroundOperators' => {
'Enabled' => true
})
end
let(:cop_config) do
{
'EnforcedStyle' => 'ruby19',
'SupportedStyles' => %w[ruby19 hash_rockets],
'EnforcedShorthandSyntax' => 'always',
'SupportedShorthandSyntax' => %w[always never],
'UseHashRocketsWithSymbolValues' => false,
'PreferHashRocketsForNonAlnumEndingSymbols' => false
}.merge(cop_config_overrides)
end
let(:cop_config_overrides) { {} }
it 'registers offense for hash rocket syntax when new is possible' do
expect_offense(<<~RUBY)
x = { :a => 0, :b => 2}
^^^^^ Use the new Ruby 1.9 hash syntax.
^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { a: 0, b: 2}
RUBY
end
it 'registers an offense for mixed syntax when new is possible' do
expect_offense(<<~RUBY)
x = { :a => 0, b: 1 }
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { a: 0, b: 1 }
RUBY
end
it 'registers an offense for hash rockets in method calls' do
expect_offense(<<~RUBY)
func(3, :a => 0)
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
func(3, a: 0)
RUBY
end
it 'accepts hash rockets when keys have different types' do
expect_no_offenses('x = { :a => 0, "b" => 1 }')
end
it 'accepts an empty hash' do
expect_no_offenses('{}')
end
context 'ruby < 2.2', :ruby21 do
it 'accepts hash rockets when symbol keys have string in them' do
expect_no_offenses('x = { :"string" => 0 }')
end
end
it 'registers an offense when symbol keys have strings in them' do
expect_offense(<<~RUBY)
x = { :"string" => 0 }
^^^^^^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { "string": 0 }
RUBY
end
it 'preserves quotes during autocorrection' do
expect_offense(<<~RUBY)
{ :'&&' => foo }
^^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
{ '&&': foo }
RUBY
end
context 'if PreferHashRocketsForNonAlnumEndingSymbols is false' do
it 'registers an offense for hash rockets when symbols end with ?' do
expect_offense(<<~RUBY)
x = { :a? => 0 }
^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { a?: 0 }
RUBY
end
it 'registers an offense for hash rockets when symbols end with !' do
expect_offense(<<~RUBY)
x = { :a! => 0 }
^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { a!: 0 }
RUBY
end
end
context 'if PreferHashRocketsForNonAlnumEndingSymbols is true' do
let(:cop_config_overrides) { { 'PreferHashRocketsForNonAlnumEndingSymbols' => true } }
it 'accepts hash rockets when symbols end with ?' do
expect_no_offenses('x = { :a? => 0 }')
end
it 'accepts hash rockets when symbols end with !' do
expect_no_offenses('x = { :a! => 0 }')
end
end
it 'accepts hash rockets when symbol keys end with =' do
expect_no_offenses('x = { :a= => 0 }')
end
it 'accepts hash rockets when symbol characters are not supported' do
expect_no_offenses('x = { :[] => 0 }')
end
it 'registers offense when keys start with an uppercase letter' do
expect_offense(<<~RUBY)
x = { :A => 0 }
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { A: 0 }
RUBY
end
it 'accepts new syntax in a hash literal' do
expect_no_offenses('x = { a: 0, b: 1 }')
end
it 'accepts new syntax in method calls' do
expect_no_offenses('func(3, a: 0)')
end
it 'autocorrects even if it interferes with SpaceAroundOperators' do
# Clobbering caused by two cops changing in the same range is dealt with
# by the autocorrect loop, so there's no reason to avoid a change.
expect_offense(<<~RUBY)
{ :a=>1, :b=>2 }
^^^^ Use the new Ruby 1.9 hash syntax.
^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
{ a: 1, b: 2 }
RUBY
end
# Bug: https://github.com/rubocop/rubocop/issues/5019
it 'autocorrects a missing space when hash is used as argument' do
expect_offense(<<~RUBY)
foo:bar => 1
^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
foo bar: 1
RUBY
end
context 'when using a return value uses `return`' do
it 'registers an offense and corrects when not enclosed in parentheses' do
expect_offense(<<~RUBY)
return :key => value
^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
return {key: value}
RUBY
end
it 'registers an offense and corrects when enclosed in parentheses' do
expect_offense(<<~RUBY)
return {:key => value}
^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
return {key: value}
RUBY
end
end
end
context 'with SpaceAroundOperators disabled' do
let(:config) do
RuboCop::Config.new('AllCops' => {
'TargetRubyVersion' => ruby_version
},
'Style/HashSyntax' => {
'EnforcedStyle' => 'ruby19',
'SupportedStyles' => %w[ruby19 hash_rockets],
'UseHashRocketsWithSymbolValues' => false
},
'Layout/SpaceAroundOperators' => {
'Enabled' => false
})
end
it 'autocorrects even if there is no space around =>' do
expect_offense(<<~RUBY)
{ :a=>1, :b=>2 }
^^^^ Use the new Ruby 1.9 hash syntax.
^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
{ a: 1, b: 2 }
RUBY
end
end
context 'configured to use hash rockets when symbol values are found' do
let(:config) do
RuboCop::Config.new('AllCops' => {
'TargetRubyVersion' => ruby_version
},
'Style/HashSyntax' => {
'EnforcedStyle' => 'ruby19',
'SupportedStyles' => %w[ruby19 hash_rockets],
'UseHashRocketsWithSymbolValues' => true
})
end
it 'accepts ruby19 syntax when no elements have symbol values' do
expect_no_offenses('x = { a: 1, b: 2 }')
end
it 'accepts ruby19 syntax when no elements have symbol values in method calls' do
expect_no_offenses('func(3, a: 0)')
end
it 'accepts an empty hash' do
expect_no_offenses('{}')
end
it 'registers an offense when any element uses a symbol for the value' do
expect_offense(<<~RUBY)
x = { a: 1, b: :c }
^^ Use hash rockets syntax.
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
x = { :a => 1, :b => :c }
RUBY
end
it 'registers an offense when any element has a symbol value in method calls' do
expect_offense(<<~RUBY)
func(3, b: :c)
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
func(3, :b => :c)
RUBY
end
it 'registers an offense when using hash rockets and no elements have a symbol value' do
expect_offense(<<~RUBY)
x = { :a => 1, :b => 2 }
^^^^^ Use the new Ruby 1.9 hash syntax.
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { a: 1, b: 2 }
RUBY
end
it 'registers an offense for hashes with elements on multiple lines' do
expect_offense(<<~RUBY)
x = { a: :b,
^^ Use hash rockets syntax.
c: :d }
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
x = { :a => :b,
:c => :d }
RUBY
end
it 'accepts both hash rockets and ruby19 syntax in the same code' do
expect_no_offenses(<<~RUBY)
rocket_required = { :a => :b }
ruby19_required = { c: 3 }
RUBY
end
it 'autocorrects to hash rockets when all elements have symbol value' do
expect_offense(<<~RUBY)
{ a: :b, c: :d }
^^ Use hash rockets syntax.
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
{ :a => :b, :c => :d }
RUBY
end
it 'accepts hash in ruby19 style with no symbol values' do
expect_no_offenses(<<~RUBY)
{ a: 1, b: 2 }
RUBY
end
end
end
context 'configured to enforce hash rockets style' do
let(:cop_config) do
{
'EnforcedStyle' => 'hash_rockets',
'SupportedStyles' => %w[ruby19 hash_rockets],
'UseHashRocketsWithSymbolValues' => false
}
end
it 'registers offense for Ruby 1.9 style' do
expect_offense(<<~RUBY)
x = { a: 0, b: 2}
^^ Use hash rockets syntax.
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
x = { :a => 0, :b => 2}
RUBY
end
it 'registers an offense for mixed syntax' do
expect_offense(<<~RUBY)
x = { a => 0, b: 1 }
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
x = { a => 0, :b => 1 }
RUBY
end
it 'registers an offense for 1.9 style in method calls' do
expect_offense(<<~RUBY)
func(3, a: 0)
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
func(3, :a => 0)
RUBY
end
it 'accepts hash rockets in a hash literal' do
expect_no_offenses('x = { :a => 0, :b => 1 }')
end
it 'accepts hash rockets in method calls' do
expect_no_offenses('func(3, :a => 0)')
end
it 'accepts an empty hash' do
expect_no_offenses('{}')
end
context 'UseHashRocketsWithSymbolValues has no impact' do
let(:cop_config) do
{
'EnforcedStyle' => 'hash_rockets',
'SupportedStyles' => %w[ruby19 hash_rockets],
'UseHashRocketsWithSymbolValues' => true
}
end
it 'does not register an offense when there is a symbol value' do
expect_no_offenses('{ :a => :b, :c => :d }')
end
end
end
context 'configured to enforce ruby 1.9 style with no mixed keys' do
context 'UseHashRocketsWithSymbolValues disabled' do
let(:cop_config) do
{
'EnforcedStyle' => 'ruby19_no_mixed_keys',
'UseHashRocketsWithSymbolValues' => false
}
end
it 'accepts new syntax in a hash literal' do
expect_no_offenses('x = { a: 0, b: 1 }')
end
it 'registers offense for hash rocket syntax when new is possible' do
expect_offense(<<~RUBY)
x = { :a => 0, :b => 2 }
^^^^^ Use the new Ruby 1.9 hash syntax.
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { a: 0, b: 2 }
RUBY
end
it 'registers an offense for mixed syntax when new is possible' do
expect_offense(<<~RUBY)
x = { :a => 0, b: 1 }
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { a: 0, b: 1 }
RUBY
end
it 'accepts new syntax in method calls' do
expect_no_offenses('func(3, a: 0)')
end
it 'registers an offense for hash rockets in method calls' do
expect_offense(<<~RUBY)
func(3, :a => 0)
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
func(3, a: 0)
RUBY
end
it 'accepts hash rockets when keys have different types' do
expect_no_offenses('x = { :a => 0, "b" => 1 }')
end
it 'accepts an empty hash' do
expect_no_offenses('{}')
end
it 'registers an offense when keys have different types and styles' do
expect_offense(<<~RUBY)
x = { a: 0, "b" => 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
expect_correction(<<~RUBY)
x = { :a => 0, "b" => 1 }
RUBY
end
context 'ruby < 2.2', :ruby21 do
it 'accepts hash rockets when keys have whitespaces in them' do
expect_no_offenses('x = { :"t o" => 0, :b => 1 }')
end
it 'registers an offense when keys have whitespaces and mix styles' do
expect_offense(<<~RUBY)
x = { :"t o" => 0, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
end
it 'accepts hash rockets when keys have special symbols in them' do
expect_no_offenses('x = { :"\\tab" => 1, :b => 1 }')
end
it 'registers an offense when keys have special symbols and mix styles' do
expect_offense(<<~RUBY)
x = { :"\tab" => 1, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
end
it 'accepts hash rockets when keys start with a digit' do
expect_no_offenses('x = { :"1" => 1, :b => 1 }')
end
it 'registers an offense when keys start with a digit and mix styles' do
expect_offense(<<~RUBY)
x = { :"1" => 1, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
end
end
it 'registers an offense when keys have whitespaces in them' do
expect_offense(<<~RUBY)
x = { :"t o" => 0 }
^^^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { "t o": 0 }
RUBY
end
it 'registers an offense when keys have special symbols in them' do
expect_offense(<<~'RUBY')
x = { :"\tab" => 1 }
^^^^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~'RUBY')
x = { "\tab": 1 }
RUBY
end
it 'registers an offense when keys start with a digit' do
expect_offense(<<~RUBY)
x = { :"1" => 1 }
^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { "1": 1 }
RUBY
end
it 'accepts new syntax when keys are interpolated string' do
expect_no_offenses('{"#{foo}": 1, "#{@foo}": 2, "#@foo": 3}')
end
end
context 'UseHashRocketsWithSymbolValues enabled' do
let(:cop_config) do
{
'EnforcedStyle' => 'ruby19_no_mixed_keys',
'UseHashRocketsWithSymbolValues' => true
}
end
it 'registers an offense when any element uses a symbol for the value' do
expect_offense(<<~RUBY)
x = { a: 1, b: :c }
^^ Use hash rockets syntax.
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
x = { :a => 1, :b => :c }
RUBY
end
it 'registers an offense when any element has a symbol value in method calls' do
expect_offense(<<~RUBY)
func(3, b: :c)
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
func(3, :b => :c)
RUBY
end
it 'autocorrects to hash rockets when all elements have symbol value' do
expect_offense(<<~RUBY)
{ a: :b, c: :d }
^^ Use hash rockets syntax.
^^ Use hash rockets syntax.
RUBY
expect_correction(<<~RUBY)
{ :a => :b, :c => :d }
RUBY
end
it 'accepts new syntax in a hash literal' do
expect_no_offenses('x = { a: 0, b: 1 }')
end
it 'registers offense for hash rocket syntax when new is possible' do
expect_offense(<<~RUBY)
x = { :a => 0, :b => 2 }
^^^^^ Use the new Ruby 1.9 hash syntax.
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect(cop.config_to_allow_offenses).to eq('EnforcedStyle' => 'hash_rockets')
expect_correction(<<~RUBY)
x = { a: 0, b: 2 }
RUBY
end
it 'registers an offense for mixed syntax when new is possible' do
expect_offense(<<~RUBY)
x = { :a => 0, b: 1 }
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
expect_correction(<<~RUBY)
x = { a: 0, b: 1 }
RUBY
end
it 'accepts new syntax in method calls' do
expect_no_offenses('func(3, a: 0)')
end
it 'registers an offense for hash rockets in method calls' do
expect_offense(<<~RUBY)
func(3, :a => 0)
^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
func(3, a: 0)
RUBY
end
it 'accepts hash rockets when keys have different types' do
expect_no_offenses('x = { :a => 0, "b" => 1 }')
end
it 'accepts an empty hash' do
expect_no_offenses('{}')
end
it 'registers an offense when keys have different types and styles' do
expect_offense(<<~RUBY)
x = { a: 0, "b" => 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
expect_correction(<<~RUBY)
x = { :a => 0, "b" => 1 }
RUBY
end
context 'ruby < 2.2', :ruby21 do
it 'accepts hash rockets when keys have whitespaces in them' do
expect_no_offenses('x = { :"t o" => 0, :b => 1 }')
end
it 'registers an offense when keys have whitespaces and mix styles' do
expect_offense(<<~RUBY)
x = { :"t o" => 0, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
end
it 'accepts hash rockets when keys have special symbols in them' do
expect_no_offenses('x = { :"\\tab" => 1, :b => 1 }')
end
it 'registers an offense when keys have special symbols and mix styles' do
expect_offense(<<~RUBY)
x = { :"\tab" => 1, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
end
it 'accepts hash rockets when keys start with a digit' do
expect_no_offenses('x = { :"1" => 1, :b => 1 }')
end
it 'registers an offense when keys start with a digit and mix styles' do
expect_offense(<<~RUBY)
x = { :"1" => 1, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
end
end
it 'registers an offense when keys have whitespaces in them' do
expect_offense(<<~RUBY)
x = { :"t o" => 0 }
^^^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { "t o": 0 }
RUBY
end
it 'registers an offense when keys have special symbols in them' do
expect_offense(<<~'RUBY')
x = { :"\tab" => 1 }
^^^^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~'RUBY')
x = { "\tab": 1 }
RUBY
end
it 'registers an offense when keys start with a digit' do
expect_offense(<<~RUBY)
x = { :"1" => 1 }
^^^^^^^ Use the new Ruby 1.9 hash syntax.
RUBY
expect_correction(<<~RUBY)
x = { "1": 1 }
RUBY
end
it 'accepts new syntax when keys are interpolated string' do
expect_no_offenses('{"#{foo}": 1, "#{@foo}": 2, "#@foo": 3}')
end
end
end
context 'configured to enforce no mixed keys' do
let(:cop_config) { { 'EnforcedStyle' => 'no_mixed_keys' } }
it 'accepts new syntax in a hash literal' do
expect_no_offenses('x = { a: 0, b: 1 }')
end
it 'accepts the hash rocket syntax when new is possible' do
expect_no_offenses('x = { :a => 0 }')
end
it 'registers an offense for mixed syntax when new is possible' do
expect_offense(<<~RUBY)
x = { :a => 0, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
expect_correction(<<~RUBY)
x = { :a => 0, :b => 1 }
RUBY
end
it 'accepts new syntax in method calls' do
expect_no_offenses('func(3, a: 0)')
end
it 'accepts hash rockets in method calls' do
expect_no_offenses('func(3, :a => 0)')
end
it 'accepts hash rockets when keys have different types' do
expect_no_offenses('x = { :a => 0, "b" => 1 }')
end
it 'accepts an empty hash' do
expect_no_offenses('{}')
end
it 'registers an offense when keys have different types and styles' do
expect_offense(<<~RUBY)
x = { a: 0, "b" => 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
expect_correction(<<~RUBY)
x = { :a => 0, "b" => 1 }
RUBY
end
it 'accepts hash rockets when keys have whitespaces in them' do
expect_no_offenses('x = { :"t o" => 0, :b => 1 }')
end
it 'registers an offense when keys have whitespaces and mix styles' do
expect_offense(<<~RUBY)
x = { :"t o" => 0, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
expect_correction(<<~RUBY)
x = { :"t o" => 0, :b => 1 }
RUBY
end
it 'accepts hash rockets when keys have special symbols in them' do
expect_no_offenses('x = { :"\\tab" => 1, :b => 1 }')
end
it 'registers an offense when keys have special symbols and mix styles' do
expect_offense(<<~RUBY, tab: "\t")
x = { :"%{tab}ab" => 1, b: 1 }
_{tab} ^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
expect_correction(<<~RUBY)
x = { :"\tab" => 1, :b => 1 }
RUBY
end
it 'accepts hash rockets when keys start with a digit' do
expect_no_offenses('x = { :"1" => 1, :b => 1 }')
end
it 'registers an offense when keys start with a digit and mix styles' do
expect_offense(<<~RUBY)
x = { :"1" => 1, b: 1 }
^^ Don't mix styles in the same hash.
RUBY
expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
expect_correction(<<~RUBY)
x = { :"1" => 1, :b => 1 }
RUBY
end
it 'accepts old hash rockets style' do
expect_no_offenses('{ :a => 1, :b => 2 }')
end
it 'accepts new hash style' do
expect_no_offenses('{ a: 1, b: 2 }')
end
it 'autocorrects mixed key hashes' do
expect_offense(<<~RUBY)
{ a: 1, :b => 2 }
^^^^^ Don't mix styles in the same hash.
RUBY
expect_correction(<<~RUBY)
{ a: 1, b: 2 }
RUBY
end
end
context 'configured to enforce shorthand syntax style' do
let(:cop_config) do
{
'EnforcedStyle' => enforced_style,
'SupportedStyles' => %w[ruby19 hash_rockets],
'EnforcedShorthandSyntax' => 'always'
}
end
let(:enforced_style) { 'ruby19' }
context 'Ruby >= 3.1', :ruby31 do
it 'registers and corrects an offense when hash key and hash value are the same' do
expect_offense(<<~RUBY)
{foo: foo, bar: bar}
^^^ Omit the hash value.
^^^ Omit the hash value.
RUBY
expect_correction(<<~RUBY)
{foo:, bar:}
RUBY
end
it 'registers and corrects an offense when hash key and hash value (lvar) are the same' do
expect_offense(<<~RUBY)
foo = 'a'
bar = 'b'
{foo: foo, bar: bar}
^^^ Omit the hash value.
^^^ Omit the hash value.
RUBY
expect_correction(<<~RUBY)
foo = 'a'
bar = 'b'
{foo:, bar:}
RUBY
end
it 'registers and corrects an offense when hash key and hash value are partially the same' do
expect_offense(<<~RUBY)
{foo:, bar: bar, baz: qux}
^^^ Omit the hash value.
RUBY
expect_correction(<<~RUBY)
{foo:, bar:, baz: qux}
RUBY
end
it 'registers and corrects an offense when `Hash[foo: foo]`' do
expect_offense(<<~RUBY)
Hash[foo: foo]
^^^ Omit the hash value.
RUBY
expect_correction(<<~RUBY)
Hash[foo:]
RUBY
end
it 'registers and corrects an offense when `Hash[foo: foo]` and an expression follows' do
expect_offense(<<~RUBY)
Hash[foo: foo]
^^^ Omit the hash value.
do_something
RUBY
expect_correction(<<~RUBY)
Hash[foo:]
do_something
RUBY
end
it 'registers and corrects an offense when hash key and hash value are the same and it in the method body' do
expect_offense(<<~RUBY)
def do_something
{
foo: foo,
^^^ Omit the hash value.
bar: bar
^^^ Omit the hash value.
}
end
RUBY
expect_correction(<<~RUBY)
def do_something
{
foo:,
bar:
}
end
RUBY
end
it 'registers and corrects an offense when hash key and hash value are the same and it in the method body' \
'and an expression follows' do
expect_offense(<<~RUBY)
def do_something
{
foo: foo,
^^^ Omit the hash value.
bar: bar
^^^ Omit the hash value.
}
end
do_something
RUBY
expect_correction(<<~RUBY)
def do_something
{
foo:,
bar:
}
end
do_something
RUBY
end
it 'does not register an offense when hash values are omitted' do
expect_no_offenses(<<~RUBY)
{foo:, bar:}
RUBY
end
it 'does not register an offense when hash key and hash value are not the same' do
expect_no_offenses(<<~RUBY)
{foo: bar, bar: foo}
RUBY
end
it 'does not register an offense when symbol hash key and hash value (lvar) are not the same' do
expect_no_offenses(<<~RUBY)
foo = 'a'
bar = 'b'
{foo: bar, bar: foo}
RUBY
end
it 'registers an offense when hash key and hash value are not the same and method with `[]` is called' do
expect_offense(<<~RUBY)
{foo: foo}.do_something[key]
^^^ Omit the hash value.
RUBY