require 'yaml'
require_relative '../test_helper'
require_relative '../../lib/signore/signature'

module Signore
  describe Signature do
    describe '.new' do
      it 'instantiates Signatures via parameters' do
        source = 'A History of Modern Computing'
        text   = 'In 1940 he summarized his work in an influential book, ' \
          '‘Punched Card Methods in Scientific Computation’.'
        sig = Signature.new(author: 'Paul E. Ceruzzi', source: source,
                            subject: 'on Wallace Eckert',
                            tags: ['punched cards'], text: text)
        sig.author.must_equal 'Paul E. Ceruzzi'
        sig.source.must_equal source
        sig.subject.must_equal 'on Wallace Eckert'
        sig.tags.must_equal ['punched cards']
        sig.text.must_equal text
      end

      it 'nils empty parameters' do
        new = Signature.new(author: '', source: '', subject: '', tags: [],
                            text: '')
        new.must_equal Signature.new(author: nil, source: nil, subject: nil,
                                     tags: nil, text: nil)
      end
    end

    describe '#to_h' do
      it 'returns a String-keyed Hash representation of the Signature' do
        text = 'For the sake of topic titles, I’d rather if Monty saved Python.'
        sig  = Signature.new(author: 'Anonymous Coward', source: '/.',
                             subject: 'on ‘Monty Wants to Save MySQL’',
                             tags: %w(/. MySQL), text: text)
        sig.to_h.must_equal 'author' => 'Anonymous Coward', 'source' => '/.',
                            'subject' => 'on ‘Monty Wants to Save MySQL’',
                            'tags' => %w(/. MySQL), 'text' => text
      end

      it 'removes non-existing keys' do
        assert Signature.new.to_h.empty?
      end
    end

    describe '#to_s' do
      it 'does not show meta if there’s nothing to show' do
        text = '// sometimes I believe compiler ignores all my comments'
        sig  = Signature.new(text: text)
        sig.to_s.must_equal text
      end

      it 'shows author on its own' do
        sig = Signature.new(author: 'kodz',
                            text: 'stay-at-home executives vs. wallstreet dads')
        sig.to_s.must_equal <<-end.dedent.strip
          stay-at-home executives vs. wallstreet dads
                                               [kodz]
        end
      end

      it 'shows author and source, comma-separated' do
        text = 'You do have to be mad to work here, but it doesn’t help.'
        sig  = Signature.new(author: 'Gary Barnes', source: 'asr', text: text)
        sig.to_s.must_equal <<-end.dedent.strip
          You do have to be mad to work here, but it doesn’t help.
                                                [Gary Barnes, asr]
        end
      end

      it 'shows source on its own' do
        text = 'Bruce Schneier knows Alice and Bob’s shared secret.'
        sig  = Signature.new(source: 'Bruce Schneier Facts', text: text)
        sig.to_s.must_equal <<-end.dedent.strip
          Bruce Schneier knows Alice and Bob’s shared secret.
                                       [Bruce Schneier Facts]
        end
      end

      it 'shows author and subject, space separated' do
        text = 'She was good at playing abstract confusion ' \
        'in the same way a midget is good at being short.'
        sig = Signature.new(author: 'Clive James', subject: 'on Marilyn Monroe',
                            text: text)
        sig.to_s.must_equal <<-end.dedent.strip
          She was good at playing abstract confusion in
          the same way a midget is good at being short.
                        [Clive James on Marilyn Monroe]
        end
      end

      it 'shows subject on its own' do
        text = 'Amateur fighter pilot ignores orders, listens ' \
          'to the voices in his head and slaughters thousands.'
        sig = Signature.new(subject: 'Star Wars ending explained', text: text)
        sig.to_s.must_equal <<-end.dedent.strip
          Amateur fighter pilot ignores orders, listens to
          the voices in his head and slaughters thousands.
                              [Star Wars ending explained]
        end
      end

      it 'handles edge cases properly' do
        YAML.load_file('test/fixtures/wrapper.yml').each do |sig, wrapped|
          sig.to_s.must_equal wrapped
        end
      end
    end
  end
end