120 lines
3.6 KiB
Ruby
120 lines
3.6 KiB
Ruby
require 'spec_helper'
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module Producer::Core
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describe CLI do
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include ExitHelpers
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include FixturesHelpers
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let(:recipe_file) { fixture_path_for('recipes/empty.rb') }
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let(:arguments) { [recipe_file] }
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subject(:cli) { CLI.new(arguments) }
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describe '#arguments' do
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it 'returns the arguments' do
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expect(cli.arguments).to eq arguments
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end
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end
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describe '#run!' do
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it 'checks the arguments' do
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expect(cli).to receive(:check_arguments!)
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cli.run!
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end
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it 'evaluates the recipe' do
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expect(cli).to receive(:evaluate_recipe_file)
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cli.run!
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end
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end
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describe '#check_arguments!' do
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context 'when recipe argument is provided' do
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it 'does not raise any error' do
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expect { cli.check_arguments! }.to_not raise_error
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end
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end
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context 'when recipe argument is missing' do
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let(:arguments) { [] }
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let(:stdout) { StringIO.new }
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subject(:cli) { CLI.new(arguments, stdout) }
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it 'exits with a return status of 64' do
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expect { cli.check_arguments! }.to raise_error(SystemExit) { |e|
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expect(e.status).to eq 64
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}
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end
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it 'prints the usage' do
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trap_exit { cli.check_arguments! }
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expect(stdout.string).to match /\AUsage: .+/
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end
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end
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end
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describe '#evaluate_recipe_file' do
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it 'builds a recipe' do
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expect(Recipe)
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.to receive(:from_file).with(recipe_file).and_call_original
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cli.evaluate_recipe_file
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end
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it 'builds an environment with the current recipe' do
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recipe = double('recipe').as_null_object
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allow(Recipe).to receive(:from_file).and_return(recipe)
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expect(Env).to receive(:new).with(recipe).and_call_original
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cli.evaluate_recipe_file
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end
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it 'evaluates the recipe with the environment' do
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recipe = double('recipe')
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allow(Recipe).to receive(:from_file).and_return(recipe)
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env = double('env')
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allow(Env).to receive(:new).and_return(env)
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expect(recipe).to receive(:evaluate).with(env)
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cli.evaluate_recipe_file
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end
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context 'when recipe evaluation fails' do
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let(:recipe_file) { fixture_path_for('recipes/invalid.rb') }
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let(:stdout) { StringIO.new }
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subject(:cli) { CLI.new(arguments, stdout) }
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context 'when error is known' do
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it 'exits with a return status of 70' do
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expect { cli.evaluate_recipe_file }
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.to raise_error(SystemExit) { |e|
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expect(e.status).to eq 70
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}
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end
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it 'prints the specific error' do
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trap_exit { cli.evaluate_recipe_file }
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expect(stdout.string).to match(/
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\A
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#{recipe_file}:4:
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.+
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invalid\srecipe\skeyword\s`invalid_keyword'
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/x)
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end
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it 'excludes producer own source code from the error backtrace' do
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trap_exit { cli.evaluate_recipe_file }
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expect(stdout.string).to_not match /\/producer-core\//
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end
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end
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context 'when error is unknown (unexpected)' do
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it 'lets the error be' do
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UnexpectedError = Class.new(StandardError)
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recipe = double('recipe')
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allow(Recipe).to receive(:from_file).and_return(recipe)
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allow(recipe).to receive(:evaluate).and_raise(UnexpectedError)
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expect { cli.evaluate_recipe_file }.to raise_error(UnexpectedError)
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end
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end
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end
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end
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end
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end
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