# Copyright:: Copyright 2017, Noah Kantrowitz
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

require "spec_helper"
require "chef/version_string"

describe Chef::VersionString do
  let(:input) { '1.2.3' }
  subject(:described_object) { described_class.new(input) }

  it { is_expected.to eq '1.2.3' }
  it { is_expected.to eql '1.2.3' }
  it { is_expected.to be == '1.2.3' }
  it { is_expected.to be < 'abc' }
  it { is_expected.to be > '0' }

  context 'with !=' do
    subject { described_object != '1.2.4' }
    it { is_expected.to be true }
  end

  context 'with +' do
    subject { described_object + 'asdf' }
    it { is_expected.to eq '1.2.3asdf' }
  end

  context 'with *' do
    subject { described_object * 3 }
    it { is_expected.to eq '1.2.31.2.31.2.3' }
  end

  context 'with version-like comparisons' do
    subject { described_class.new('1.02.3') }

    it { is_expected.to eq '1.2.3' }
    it { is_expected.to be > '1.2.2' }
    it { is_expected.to be > '1.2.3a' }
    it { is_expected.to be < '1.2.4' }
  end

  context 'with =~ Regexp' do
    subject { described_object =~ /^1/ }
    it { is_expected.to eq 0 }
  end

  context 'with =~ Requirement' do
    subject { described_object =~ Gem::Requirement.create('~> 1.0') }
    it { is_expected.to be true }
  end

  context 'with =~ String' do
    subject { described_object =~ '~> 1.0' }
    it { is_expected.to be true }
  end

  context 'with Regexp =~' do
    subject { /^2/ =~ described_object }
    it { is_expected.to be nil }
  end

  context 'with String =~' do
    subject { '~> 1.0' =~ described_object }
    it { expect { subject }.to raise_error TypeError }
  end
end