75 lines
1.7 KiB
Ruby
75 lines
1.7 KiB
Ruby
require 'spec_helper'
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require 'rubocop'
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require 'rubocop/rspec/support'
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require_relative '../../../rubocop/cop/avoid_break_from_strong_memoize'
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describe RuboCop::Cop::AvoidBreakFromStrongMemoize do
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include CopHelper
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subject(:cop) { described_class.new }
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it 'flags violation for break inside strong_memoize' do
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expect_offense(<<~RUBY)
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strong_memoize(:result) do
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break if something
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^^^^^ Do not use break inside strong_memoize, use next instead.
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do_an_heavy_calculation
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end
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RUBY
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end
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it 'flags violation for break inside strong_memoize nested blocks' do
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expect_offense(<<~RUBY)
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strong_memoize do
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items.each do |item|
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break item
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^^^^^^^^^^ Do not use break inside strong_memoize, use next instead.
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end
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end
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RUBY
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end
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it "doesn't flag violation for next inside strong_memoize" do
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expect_no_offenses(<<~RUBY)
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strong_memoize(:result) do
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next if something
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do_an_heavy_calculation
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end
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RUBY
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end
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it "doesn't flag violation for break inside blocks" do
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expect_no_offenses(<<~RUBY)
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call do
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break if something
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do_an_heavy_calculation
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end
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RUBY
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end
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it "doesn't call add_offense twice for nested blocks" do
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source = <<~RUBY
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call do
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strong_memoize(:result) do
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break if something
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do_an_heavy_calculation
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end
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end
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RUBY
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expect_any_instance_of(described_class).to receive(:add_offense).once
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inspect_source(source)
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end
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it "doesn't check when block is empty" do
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expect_no_offenses(<<~RUBY)
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strong_memoize(:result) do
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end
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RUBY
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end
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end
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