112 lines
2.7 KiB
Ruby
112 lines
2.7 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/custom_error_class'
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describe RuboCop::Cop::CustomErrorClass do
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include CopHelper
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subject(:cop) { described_class.new }
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context 'when a class has a body' do
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it 'does nothing' do
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inspect_source(cop, 'class CustomError < StandardError; def foo; end; end')
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expect(cop.offenses).to be_empty
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end
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end
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context 'when a class has no explicit superclass' do
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it 'does nothing' do
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inspect_source(cop, 'class CustomError; end')
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expect(cop.offenses).to be_empty
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end
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end
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context 'when a class has a superclass that does not end in Error' do
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it 'does nothing' do
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inspect_source(cop, 'class CustomError < BasicObject; end')
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expect(cop.offenses).to be_empty
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end
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end
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context 'when a class is empty and inherits from a class ending in Error' do
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context 'when the class is on a single line' do
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let(:source) do
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<<-SOURCE
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module Foo
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class CustomError < Bar::Baz::BaseError; end
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end
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SOURCE
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end
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let(:expected) do
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<<-EXPECTED
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module Foo
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CustomError = Class.new(Bar::Baz::BaseError)
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end
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EXPECTED
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end
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it 'registers an offense' do
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expected_highlights = source.split("\n")[1].strip
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inspect_source(cop, source)
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aggregate_failures do
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expect(cop.offenses.size).to eq(1)
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expect(cop.offenses.map(&:line)).to eq([2])
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expect(cop.highlights).to contain_exactly(expected_highlights)
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end
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end
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it 'autocorrects to the right version' do
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autocorrected = autocorrect_source(cop, source, 'foo/custom_error.rb')
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expect(autocorrected).to eq(expected)
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end
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end
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context 'when the class is on multiple lines' do
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let(:source) do
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<<-SOURCE
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module Foo
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class CustomError < Bar::Baz::BaseError
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end
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end
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SOURCE
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end
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let(:expected) do
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<<-EXPECTED
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module Foo
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CustomError = Class.new(Bar::Baz::BaseError)
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end
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EXPECTED
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end
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it 'registers an offense' do
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expected_highlights = source.split("\n")[1..2].join("\n").strip
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inspect_source(cop, source)
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aggregate_failures do
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expect(cop.offenses.size).to eq(1)
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expect(cop.offenses.map(&:line)).to eq([2])
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expect(cop.highlights).to contain_exactly(expected_highlights)
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end
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end
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it 'autocorrects to the right version' do
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autocorrected = autocorrect_source(cop, source, 'foo/custom_error.rb')
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expect(autocorrected).to eq(expected)
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end
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end
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end
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end
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