require 'rspec/core/bisect/server'
require 'support/formatter_support'

module RSpec::Core
  RSpec.describe Bisect::Server do
    RSpec::Matchers.define :have_running_server do
      match do |drb|
        begin
          drb.current_server.alive?
        rescue DRb::DRbServerNotFound
          false
        end
      end
    end

    it 'always stops the server, even if an error occurs while yielding' do
      skip "This test flaps on JRuby 1.8 mode for some reason" if RSpec::Support::Ruby.jruby? && RUBY_VERSION.to_f < 1.9

      expect(DRb).not_to have_running_server

      expect {
        Bisect::Server.run do
          expect(DRb).to have_running_server
          raise "boom"
        end
      }.to raise_error("boom")

      expect(DRb).not_to have_running_server
    end

    context "when results are failed to be reported" do
      let(:server) { Bisect::Server.new }

      it "raises an error with the output" do
        expect {
          server.capture_run_results { "the output" }
        }.to raise_error(an_object_having_attributes(
          :class   => Bisect::BisectFailedError,
          :message => a_string_including("Failed to get results", "the output")
        ))
      end
    end

    context "when used in combination with the BisectFormatter", :slow do
      include FormatterSupport

      attr_reader :server

      around do |ex|
        Bisect::Server.run do |the_server|
          @server = the_server
          ex.run
        end
      end

      def run_formatter_specs
        RSpec.configuration.drb_port = server.drb_port
        run_rspec_with_formatter("bisect")
      end

      it 'receives suite results' do
        results = server.capture_run_results(['spec/rspec/core/resources/formatter_specs.rb']) do
          run_formatter_specs
        end

        aggregate_failures "checking results" do
          expect(results.all_example_ids).to eq %w[
            ./spec/rspec/core/resources/formatter_specs.rb[1:1]
            ./spec/rspec/core/resources/formatter_specs.rb[2:1:1]
            ./spec/rspec/core/resources/formatter_specs.rb[2:2:1]
            ./spec/rspec/core/resources/formatter_specs.rb[3:1]
            ./spec/rspec/core/resources/formatter_specs.rb[4:1]
            ./spec/rspec/core/resources/formatter_specs.rb[5:1]
            ./spec/rspec/core/resources/formatter_specs.rb[5:2]
            ./spec/rspec/core/resources/formatter_specs.rb[5:3:1]
          ]

          expect(results.failed_example_ids).to eq %w[
            ./spec/rspec/core/resources/formatter_specs.rb[2:2:1]
            ./spec/rspec/core/resources/formatter_specs.rb[4:1]
            ./spec/rspec/core/resources/formatter_specs.rb[5:1]
            ./spec/rspec/core/resources/formatter_specs.rb[5:2]
            ./spec/rspec/core/resources/formatter_specs.rb[5:3:1]
          ]
        end
      end

      describe "aborting the run early" do
        it "aborts as soon as the last expected failure finishes, since we don't care about what happens after that" do
          expected_failures = %w[
            ./spec/rspec/core/resources/formatter_specs.rb[2:2:1]
            ./spec/rspec/core/resources/formatter_specs.rb[4:1]
          ]

          results = server.capture_run_results(['spec/rspec/core/resources/formatter_specs.rb'], expected_failures) do
            run_formatter_specs
          end

          expect(results).to have_attributes(
            :all_example_ids => %w[
              ./spec/rspec/core/resources/formatter_specs.rb[1:1]
              ./spec/rspec/core/resources/formatter_specs.rb[2:1:1]
              ./spec/rspec/core/resources/formatter_specs.rb[2:2:1]
              ./spec/rspec/core/resources/formatter_specs.rb[3:1]
              ./spec/rspec/core/resources/formatter_specs.rb[4:1]
            ],
            :failed_example_ids => %w[
              ./spec/rspec/core/resources/formatter_specs.rb[2:2:1]
              ./spec/rspec/core/resources/formatter_specs.rb[4:1]
            ]
          )
        end

        it 'aborts after an expected failure passes instead, even when there are remaining failing examples' do
          passing_example       = "./spec/rspec/core/resources/formatter_specs.rb[3:1]"
          later_failing_example = "./spec/rspec/core/resources/formatter_specs.rb[4:1]"

          results = server.capture_run_results(['spec/rspec/core/resources/formatter_specs.rb'], [passing_example, later_failing_example]) do
            run_formatter_specs
          end

          expect(results).to have_attributes(
            :all_example_ids => %w[
              ./spec/rspec/core/resources/formatter_specs.rb[1:1]
              ./spec/rspec/core/resources/formatter_specs.rb[2:1:1]
              ./spec/rspec/core/resources/formatter_specs.rb[2:2:1]
              ./spec/rspec/core/resources/formatter_specs.rb[3:1]
            ],
            :failed_example_ids => %w[
              ./spec/rspec/core/resources/formatter_specs.rb[2:2:1]
            ]
          )
        end

        it 'aborts after an expected failure is pending instead, even when there are remaining failing examples' do
          pending_example       = "./spec/rspec/core/resources/formatter_specs.rb[1:1]"
          later_failing_example = "./spec/rspec/core/resources/formatter_specs.rb[4:1]"

          results = server.capture_run_results(['spec/rspec/core/resources/formatter_specs.rb'], [pending_example, later_failing_example]) do
            run_formatter_specs
          end

          expect(results).to have_attributes(
            :all_example_ids    => %w[ ./spec/rspec/core/resources/formatter_specs.rb[1:1] ],
            :failed_example_ids => %w[]
          )
        end
      end
    end
  end
end
