require_relative 'test_helper'

describe "List Command" do
  include TestDsl

  describe "List Command Setup" do
    before { LineCache.clear_file_cache }
    after  { LineCache.clear_file_cache }

    describe "listsize" do
      before { Byebug::Command.settings[:listsize] = 3 }

      it "must show lines according to :listsize setting" do
        enter 'set listsize 4', 'break 5', 'cont', 'list'
        debug_file 'list'
        check_output_includes "[3, 6] in #{fullpath('list')}"
      end

      it "must not set it if the param is not an integer" do
        enter 'set listsize 4.0', 'break 5', 'cont', 'list'
        debug_file 'list'
        check_output_includes "[4, 6] in #{fullpath('list')}"
      end
    end

    describe "without arguments" do
      before { Byebug::Command.settings[:listsize] = 3 }

      it "must show surrounding lines with the first call" do
        enter 'break 5', 'cont', 'list'
        debug_file 'list'
        check_output_includes \
          "[4, 6] in #{fullpath('list')}", "4  4", "=> 5  5", "6  6"
      end

      it "must list forward after second call" do
        enter 'break 5', 'cont', 'list', 'list'
        debug_file 'list'
        check_output_includes \
          "[7, 9] in #{fullpath('list')}", "7  7", "8  8", "9  9"
      end
    end

    describe "list backward" do
      before { Byebug::Command.settings[:listsize] = 3 }

      it "must show surrounding lines with the first call" do
        enter 'break 5', 'cont', 'list -'
        debug_file 'list'
        check_output_includes \
          "[4, 6] in #{fullpath('list')}", "4  4", "=> 5  5", "6  6"
      end

      it "must list backward after second call" do
        enter 'break 5', 'cont', 'list -', 'list -'
        debug_file 'list'
        check_output_includes \
          "[1, 3] in #{fullpath('list')}", "1  byebug", "2  2", "3  3"
      end
    end


    describe "list surrounding" do
      before { Byebug::Command.settings[:listsize] = 3 }

      it "must show the surrounding lines with =" do
        enter 'break 5', 'cont', 'list ='
        debug_file 'list'
        check_output_includes \
          "[4, 6] in #{fullpath('list')}", "4  4", "=> 5  5", "6  6"
      end
    end

    describe "autolist" do
      before do
        Byebug::Command.settings[:listsize] = 3
        Byebug::Command.settings[:autolist] = 0
      end

      it "must show the surronding lines even without 'list' command if autolist is enabled" do
        enter 'set autolist', 'break 5', 'cont'
        debug_file 'list'
        check_output_includes \
          "[4, 6] in #{fullpath('list')}", "4  4", "=> 5  5", "6  6"
      end
    end

    describe "specified lines" do
      before { Byebug::Command.settings[:listsize] = 3 }

      it "must show with mm-nn" do
        enter 'list 4-6'
        debug_file 'list'
        check_output_includes \
          "[4, 6] in #{fullpath('list')}", "4  4", "5  5", "6  6"
      end

      it "must show with mm,nn" do
        enter 'list 4,6'
        debug_file 'list'
        check_output_includes \
          "[4, 6] in #{fullpath('list')}", "4  4", "5  5", "6  6"
      end

      it "must show surroundings with mm-" do
        enter 'list 4-'
        debug_file 'list'
        check_output_includes \
          "[3, 5] in #{fullpath('list')}", "3  3", "4  4", "5  5"
      end

      it "must show surroundings with mm," do
        enter 'list 4,'
        debug_file 'list'
        check_output_includes \
          "[3, 5] in #{fullpath('list')}", "3  3", "4  4", "5  5"
      end

      it "must show nothing if there is no such lines" do
        enter 'list 44,44'
        debug_file 'list'
        check_output_includes "[44, 44] in #{fullpath('list')}"
        check_output_doesnt_include /^44  \S/
      end

      it "must show nothing if range is incorrect" do
        enter 'list 5,4'
        debug_file 'list'
        check_output_includes "[5, 4] in #{fullpath('list')}"
        check_output_doesnt_include "5  5"
        check_output_doesnt_include "4  4"
      end
    end

    describe "reload source" do
      before { Byebug::Command.settings[:reload_source_on_change] = false }
      after { change_line_in_file(fullpath('list'), 4, '4') }

      it "must not reload if setting is false" do
        enter 'set noautoreload', -> do
          change_line_in_file(fullpath('list'), 4, '100')
          'list 4-4'
        end
        debug_file 'list'
        check_output_includes "4  4"
      end

      it "must reload if setting is true" do
        enter 'set autoreload', -> do
          change_line_in_file(fullpath('list'), 4, '100')
          'list 4-4'
        end
        debug_file 'list'
        check_output_includes "4  100"
      end
    end

    it "must show an error when there is no such file" do
      enter ->{state.file = "blabla"; 'list 4-4'}
      debug_file 'list'
      check_output_includes "No sourcefile available for blabla",
                            interface.error_queue
    end

    describe "Post Mortem" do
      it "must work in post-mortem mode" do
        skip("No post morten mode for now")
        enter 'cont', 'list'
        debug_file 'post_mortem'
        check_output_includes "[7, 9] in #{fullpath('post_mortem')}"
      end
    end

  end
end