require 'spec_helper' module Pronto describe ESLintNpm do let(:eslint) { ESLintNpm.new(patches) } let(:patches) { [] } describe '#run' do subject(:run) { eslint.run } context 'patches are nil' do let(:patches) { nil } it 'returns an empty array' do expect(run).to eql([]) end end context 'no patches' do let(:patches) { [] } it 'returns an empty array' do expect(run).to eql([]) end end context 'patches with a one and a four warnings' do include_context 'test repo' let(:patches) { repo.diff('master') } it 'returns correct number of errors' do expect(run.count).to eql(5) end it 'has correct first message' do expect(run.first.msg).to eql("'foo' is not defined.") end context( 'with files to lint config that never matches', config: { 'files_to_lint' => 'will never match' } ) do it 'returns zero errors' do expect(run.count).to eql(0) end end context( 'with files to lint config that matches only .js', config: { 'files_to_lint' => '\.js$' } ) do it 'returns correct amount of errors' do expect(run.count).to eql(2) end end context( 'with different eslint executable', config: { 'eslint_executable' => './custom_eslint.sh' } ) do it 'calls the custom eslint eslint_executable' do expect { run }.to raise_error(JSON::ParserError, /custom eslint called/) end end end context 'repo with ignored and not ignored file, each with three warnings' do include_context 'eslintignore repo' let(:patches) { repo.diff('master') } it 'returns correct number of errors' do expect(run.count).to eql(3) end it 'has correct first message' do expect(run.first.msg).to eql("'HelloWorld' is defined but never used.") end end end describe '#files_to_lint' do subject(:files_to_lint) { eslint.files_to_lint } it 'matches .js by default' do expect(files_to_lint).to match('my_js.js') end it 'matches .es6 by default' do expect(files_to_lint).to match('my_js.es6') end end describe '#eslint_executable' do subject(:eslint_executable) { eslint.eslint_executable } it 'is `eslint` by default' do expect(eslint_executable).to eql('eslint') end end end end