require File.expand_path('spec_helper', __dir__)

describe Danger::Changelog::ChangelogHeaderLine do
  it_behaves_like 'validates as changelog header line', '# 1.0.1'
  it_behaves_like 'validates as changelog header line', '## Version 1.0.1'
  it_behaves_like 'validates as changelog header line', '### three hashes'
  it_behaves_like 'validates as changelog header line', '#### Four hashes is too much'
  it_behaves_like 'does not validate as changelog header line', 'something else'

  it_behaves_like 'valid changelog header line', '# 1.0.1'
  it_behaves_like 'valid changelog header line', '### Lollypop'

  it_behaves_like 'invalid changelog header line', '# 1.0.1 (1/2/3)'
  it_behaves_like 'invalid changelog header line', '* Star is invalid.'
  it_behaves_like 'invalid changelog header line', '* Star is invalid.'
  it_behaves_like 'invalid changelog header line', 'It requires a hash symbol'
  it_behaves_like 'invalid changelog header line', '1.1.1'
  it_behaves_like 'invalid changelog header line', 'Version 2.0.1'
  it_behaves_like 'invalid changelog header line', '#'
  it_behaves_like 'invalid changelog header line', '## '
  it_behaves_like 'invalid changelog header line', '##### I can not validate five'

  it_behaves_like 'valid changelog header line', '# 1.0.1 (Next)'

  context 'ISO 8601 format date' do
    it_behaves_like 'valid changelog header line', '# 1.0.1 (2018/1/2)'
  end

  context 'date not in ISO 8601 format' do
    it_behaves_like 'invalid changelog header line', '# 1.0.1 (1/2/2018)'
  end

  context 'two hash symbols' do
    it_behaves_like 'valid changelog header line', '## 1.0.1'
  end

  context 'three hash symbols' do
    it_behaves_like 'valid changelog header line', '### Lollypop'
  end

  context 'four hash symbols' do
    it_behaves_like 'valid changelog header line', '#### Four hashes is too much'
  end

  context 'when no hash symbol' do
    it_behaves_like 'invalid changelog header line', '* Star is invalid.'
  end

  context 'when star instead of hash symbol' do
    it_behaves_like 'invalid changelog header line', '* Star is invalid.'
  end

  context 'when no hash symbol' do
    it_behaves_like 'invalid changelog header line', 'It requires hash symbol.'
  end

  context 'when hash symbol without space' do
    it_behaves_like 'invalid changelog header line', '###Lollypop'
  end

  context 'when hash symbol without header title' do
    it_behaves_like 'invalid changelog header line', '### '
  end

  context 'when five hash symbols' do
    it_behaves_like 'invalid changelog header line', '##### Tooooo much'
  end

  context 'with a string as semver' do
    it_behaves_like 'invalid changelog header line', '# Invalid (Next)'
  end

  context 'with an invalid semver' do
    it_behaves_like 'invalid changelog header line', '# 0.1.'
  end

  context 'with a colon' do
    it_behaves_like 'valid changelog header line', '### Changed:'
  end

  context 'in brackets' do
    it_behaves_like 'valid changelog header line', '### [Unreleased]'
  end

  context 'in parenthesis' do
    it_behaves_like 'valid changelog header line', '### (Unreleased)'
    it_behaves_like 'invalid changelog header line', '### (Unreleased'
    it_behaves_like 'invalid changelog header line', '### Unreleased)'
    it_behaves_like 'invalid changelog header line', '### [Unreleased'
    it_behaves_like 'invalid changelog header line', '### (Unreleased]'
    it_behaves_like 'invalid changelog header line', '### Unreleased]'
  end
end