Class: RuboCop::Cop::RSpec::ContainExactly

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Defined in:
lib/rubocop/cop/rspec/contain_exactly.rb

Overview

Checks where ‘contain_exactly` is used.

This cop checks for the following:

  • Prefer ‘match_array` when matching array values.

  • Prefer ‘be_empty` when using `contain_exactly` with no arguments.

Examples:

# bad
it { is_expected.to contain_exactly(*array) }

# good
it { is_expected.to match_array(array) }

# good
it { is_expected.to contain_exactly(*array1, *array2) }

# good
it { is_expected.to contain_exactly(content, *array) }

Constant Summary collapse

MSG = 
'Prefer `match_array` when matching array values.'
RESTRICT_ON_SEND = 
%i[contain_exactly].freeze

Instance Method Summary collapse

Methods inherited from Base

inherited, #on_new_investigation

Methods included from RSpec::Language

#example?, #example_group?, #example_group_with_body?, #explicit_rspec?, #hook?, #include?, #let?, #rspec?, #shared_group?, #spec_group?, #subject?

Instance Method Details

#on_send(node) ⇒ Object 



32
33
34
35
36
37
38
39
 
# File 'lib/rubocop/cop/rspec/contain_exactly.rb', line 32

def on_send(node)
  return unless node.arguments.one? && node.first_argument.splat_type?

  add_offense(node) do |corrector|
    array = node.first_argument.children.first
    corrector.replace(node, "match_array(#{array.source})")
  end
end