shared_examples_for 'support package installed matcher' do |name|
  describe 'be_installed' do
    describe package(name) do
      it { should be_installed }
    end

    describe package('invalid-package') do
      it { should_not be_installed }
    end
  end
end

shared_examples_for 'support package installed with version matcher' do |name,version|
  describe 'installed with version' do
    describe package(name) do
      it { should be_installed.with_version(version) }
    end

    describe package('invalid-package') do
      it { should_not be_installed.with_version(version) }
    end
  end
end

shared_examples_for 'support package installed by gem matcher' do |name|
  describe 'installed by gem' do
    describe package(name) do
      it { should be_installed.by('gem') }
    end

    describe package('invalid-gem') do
      it { should_not be_installed.by('gem') }
    end
  end
end

shared_examples_for 'support package installed by gem with version matcher' do |name, version|
  describe 'installed by gem with version' do
    describe package(name) do
      it { should be_installed.by('gem').with_version(version) }
    end

    describe package('invalid-gem-package') do
      it { should_not be_installed.by('gem').with_version('invalid-version') }
    end
  end
end

shared_examples_for 'support package installed by npm matcher' do |name|
  describe 'installed by npm' do
    describe package(name) do
      it { should be_installed.by('npm') }
    end

    describe package('invalid-npm-package') do
      it { should_not be_installed.by('npm') }
    end
  end
end

shared_examples_for 'support package installed by npm with version matcher' do |name, version|
  describe 'installed by npm with version' do
    describe package(name) do
      it { should be_installed.by('npm').with_version(version) }
    end

    describe package('invalid-npm-package') do
      it { should_not be_installed.by('npm').with_version('invalid-version') }
    end
  end
end

shared_examples_for 'support package installed by pecl matcher' do |name|
  describe 'installed by pecl' do
    describe package(name) do
      it { should be_installed.by('pecl') }
    end

    describe package('invalid-pecl') do
      it { should_not be_installed.by('pecl') }
    end
  end
end

shared_examples_for 'support package installed by pecl with version matcher' do |name, version|
  describe 'installed by pecl with version' do
    describe package(name) do
      it { should be_installed.by('pecl').with_version(version) }
    end

    describe package('invalid-pecl-package') do
      it { should_not be_installed.by('pecl').with_version('invalid-version') }
    end
  end
end