class RuboCop::Cop::RSpec::LetBeforeExamples
Checks for `let` definitions that come after an example.
@example
# Bad let(:foo) { bar } it 'checks what foo does' do expect(foo).to be end let(:some) { other } it 'checks what some does' do expect(some).to be end # Good let(:foo) { bar } let(:some) { other } it 'checks what foo does' do expect(foo).to be end it 'checks what some does' do expect(some).to be end
Constants
- MSG
Public Instance Methods
autocorrect(node)
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# File lib/rubocop/cop/rspec/let_before_examples.rb, line 52 def autocorrect(node) lambda do |corrector| first_example = find_first_example(node.parent) first_example_pos = first_example.loc.expression indent = "\n" + ' ' * first_example.loc.column corrector.insert_before(first_example_pos, source(node) + indent) corrector.remove(node_range_with_surrounding_space(node)) end end
on_block(node)
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# File lib/rubocop/cop/rspec/let_before_examples.rb, line 46 def on_block(node) return unless example_group_with_body?(node) check_let_declarations(node.body) if multiline_block?(node.body) end
Private Instance Methods
check_let_declarations(node)
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# File lib/rubocop/cop/rspec/let_before_examples.rb, line 69 def check_let_declarations(node) first_example = find_first_example(node) return unless first_example node.each_child_node do |child| next if child.sibling_index < first_example.sibling_index add_offense(child, location: :expression) if let?(child) end end
find_first_example(node)
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# File lib/rubocop/cop/rspec/let_before_examples.rb, line 80 def find_first_example(node) node.children.find { |sibling| example_or_group?(sibling) } end
multiline_block?(block)
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# File lib/rubocop/cop/rspec/let_before_examples.rb, line 65 def multiline_block?(block) block.begin_type? end
node_range(node)
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# File lib/rubocop/cop/rspec/let_before_examples.rb, line 93 def node_range(node) node.loc.expression.with(end_pos: final_end_location(node).end_pos) end
node_range_with_surrounding_space(node)
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# File lib/rubocop/cop/rspec/let_before_examples.rb, line 84 def node_range_with_surrounding_space(node) range = node_range(node) range_by_whole_lines(range, include_final_newline: true) end
source(node)
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# File lib/rubocop/cop/rspec/let_before_examples.rb, line 89 def source(node) node_range(node).source end