require File.expand_path(File.dirname(__FILE__) + '/spec_helper')
require 'active_support/core_ext/kernel/reporting'

describe SimpleCov::Formatter::LcovFormatter do
  describe '#format' do
    let(:expand_path) {
      lambda do |filename|
        File.expand_path(File.join(File.dirname(__FILE__), 'fixtures', filename))
      end
    }

    let(:simplecov_result_hash) {
      {
       expand_path.call('hoge.rb') => [nil, nil, nil, 1, 2, 2, 1, nil, 0, 0, 0, 1],
       expand_path.call('app/models/user.rb') => [nil, nil, nil, 2, 2, 2, 2, nil, 0, 0, 0, nil, 1, 0, 0, 1]
      }
    }

    let(:simplecov_result) {
      SimpleCov::Result.new(simplecov_result_hash)
    }

    context 'generating report per file' do
      before {
        SimpleCov::Formatter::LcovFormatter.new.format(simplecov_result)
      }

      describe File do
        it { expect(File).to exist(File.join(SimpleCov::Formatter::LcovFormatter.output_directory, 'spec-fixtures-hoge.rb.lcov')) }
        it { expect(File).to exist(File.join(SimpleCov::Formatter::LcovFormatter.output_directory, 'spec-fixtures-app-models-user.rb.lcov')) }
      end

      describe 'spec-fixtures-hoge.rb.lcov' do
        let(:output_path) {
          File.join(SimpleCov::Formatter::LcovFormatter.output_directory, 'spec-fixtures-hoge.rb.lcov')
        }
        let(:fixture) {
          File.read("#{File.dirname(__FILE__)}/fixtures/lcov/spec-fixtures-hoge.rb.lcov")
        }
        it { expect(File.read(output_path)).to eq(fixture) }
      end

      describe 'spec-fixtures-app-models-user.rb.lcov' do
        let(:output_path) {
          File.join(SimpleCov::Formatter::LcovFormatter.output_directory, 'spec-fixtures-app-models-user.rb.lcov')
        }
        let(:fixture) {
          File.read("#{File.dirname(__FILE__)}/fixtures/lcov/spec-fixtures-app-models-user.rb.lcov")
        }
        it { expect(File.read(output_path)).to eq(fixture) }
      end
    end

    context 'generating single file report' do
      before {
        SimpleCov::Formatter::LcovFormatter.report_with_single_file = true
        SimpleCov::Formatter::LcovFormatter.new.format(simplecov_result)
      }

      describe File do
        it { expect(File).to exist(SimpleCov::Formatter::LcovFormatter.single_report_path) }
      end

      describe 'single_report_path' do
        let(:output_path) {
          SimpleCov::Formatter::LcovFormatter.single_report_path
        }
        let(:fixture_of_hoge) {
          File.read("#{File.dirname(__FILE__)}/fixtures/lcov/spec-fixtures-hoge.rb.lcov")
        }
        let(:fixture_of_user) {
          File.read("#{File.dirname(__FILE__)}/fixtures/lcov/spec-fixtures-app-models-user.rb.lcov")
        }
        it { expect(File.read(output_path)).to match(fixture_of_hoge) }
        it { expect(File.read(output_path)).to match(fixture_of_user) }
      end
    end
  end

  describe '.output_directory' do
    subject { SimpleCov::Formatter::LcovFormatter.output_directory }
    it { expect(subject).to eq(File.join(SimpleCov.coverage_path, 'lcov')) }
  end
end