spec/core/kernel/require_spec.rb

   1 require File.dirname(__FILE__) + '/../../spec_helper'
   2
   3 # FIXME: somehow make these fixture dirs independent of the
   4 # rubyspec submodule dir in spec/frozen, otherwise these specs
   5 # won't behave the same with the clone of rubyspecs in spec/ruby.
   6 $require_fixture_dir = (File.dirname(__FILE__) + '/../../frozen/1.8/fixtures/require')
   7 $LOAD_PATH << $require_fixture_dir
   8 $LOAD_PATH << (File.dirname(__FILE__) + '/../../frozen/1.8/fixtures/require/require_spec_rba.rba')
   9
  10 $require_spec   = nil
  11 $require_spec_1 = nil
  12 $require_spec_2 = nil
  13 $require_spec_3 = nil
  14 $require_spec_4 = nil
  15 $require_spec_5 = nil
  16 $require_spec_6 = nil
  17 $require_spec_7 = nil
  18 $require_spec_8 = nil
  19 $require_spec_9 = nil
  20 $require_spec_10 = nil
  21 $require_spec_rooby = nil
  22
  23 require 'rbconfig'
  24
  25 describe "Kernel#require" do
  26   # Avoid storing .rbc and .rba in repo
  27   before :all do
  28     Dir.chdir($require_fixture_dir) {
  29       `rm -f ./*.rbc`
  30       `touch require_spec_dummy.#{Config::CONFIG['DLEXT']}`
  31       `touch require_spec_dummy.rb`
  32     }
  33
  34     Kernel.compile("#{$require_fixture_dir}/require_spec_10.rb")
  35
  36     Dir.chdir($require_fixture_dir) {
  37       system "rm -f reqire_spec_rba.rba"
  38       system "ar r reqire_spec_rba.rba reqire_spec_10.rbc 2>/dev/null"
  39     }
  40   end
  41
  42   it "loads a .rbc file directly" do
  43     $LOADED_FEATURES.delete 'require_spec_2.rb'
  44     load('require_spec_2.rb')
  45     require('require_spec_2.rbc').should == true
  46     $LOADED_FEATURES.include?('require_spec_2.rb').should == true
  47   end
  48
  49   it "compiles a .rbc file when re-evaluating the source file" do
  50     Dir.chdir($require_fixture_dir) do |dir|
  51       system("rm -f require_spec_8.rbc")
  52     end
  53
  54     File.exist?("#{$require_fixture_dir}/require_spec_8.rbc").should == false
  55
  56     require('require_spec_8.rb').should == true
  57
  58     File.exist?("#{$require_fixture_dir}/require_spec_8.rbc").should == true
  59   end
  60
  61   it "loads a .rbc file if it's not older than the associated .rb file" do
  62     begin
  63       time = Time.now
  64
  65       Dir.chdir($require_fixture_dir) do |dir|
  66         File.open('require_spec_dynamic.rb', 'w+') do |f|
  67           f.puts "$require_spec_dynamic = [#{time.tv_sec}, #{time.tv_usec}]"
  68         end
  69       end
  70
  71       Kernel.compile "#{$require_fixture_dir}/require_spec_dynamic.rb"
  72
  73       require('require_spec_dynamic.rb').should == true
  74       $require_spec_dynamic.should == [time.tv_sec, time.tv_usec]
  75
  76       $LOADED_FEATURES.delete 'require_spec_dynamic.rb'
  77
  78       require('require_spec_dynamic.rb').should == true
  79       $require_spec_dynamic.should == [time.tv_sec, time.tv_usec]
  80
  81       require('require_spec_dynamic.rb').should == false
  82       $require_spec_dynamic.should == [time.tv_sec, time.tv_usec]
  83
  84       time2 = Time.now
  85
  86       Dir.chdir($require_fixture_dir) do |dir|
  87         `mv require_spec_dynamic.rbc rsd.old`
  88
  89         File.open('require_spec_dynamic.rb', 'w+') do |f|
  90           f.puts "$require_spec_dynamic = [#{time2.tv_sec}, #{time2.tv_usec}]"
  91         end
  92       end
  93
  94       $LOADED_FEATURES.delete 'require_spec_dynamic.rb'
  95
  96       require('require_spec_dynamic.rb').should == true
  97       $require_spec_dynamic.should == [time2.tv_sec, time2.tv_usec]
  98
  99       Dir.chdir($require_fixture_dir) do |dir|
 100         `mv rsd.old require_spec_dynamic.rbc`
 101         `touch require_spec_dynamic.rbc`
 102       end
 103
 104       $LOADED_FEATURES.delete 'require_spec_dynamic.rb'
 105
 106       require('require_spec_dynamic.rb').should == true
 107       $require_spec_dynamic.should == [time.tv_sec, time.tv_usec]
 108
 109     ensure
 110       Dir.chdir($require_fixture_dir) do |dir|
 111         `rm -f ./require_dynamic.rb*`
 112       end
 113     end
 114   end
 115
 116   it "loads a .rbc even if the .rb is missing" do
 117     begin
 118       Kernel.compile "#{$require_fixture_dir}/require_spec_9.rb"
 119
 120       Dir.chdir($require_fixture_dir) do |dir|
 121         `mv require_spec_9.rb ls9.old`
 122       end
 123
 124       require('require_spec_9.rb').should == true
 125
 126     ensure
 127       Dir.chdir($require_fixture_dir) do |dir|
 128         system "mv ls9.old require_spec_9.rb"
 129       end
 130     end
 131   end
 132
 133   it "does not recursively load an rbc file that requires itself" do
 134     $require_spec_recursive = nil
 135     $LOADED_FEATURES.delete 'require_spec_recursive.rb'
 136
 137     begin
 138       Kernel.compile("#{$require_fixture_dir}/require_spec_recursive.rb")
 139
 140       Dir.chdir($require_fixture_dir) do
 141         `mv require_spec_recursive.rb tmp1234`
 142       end
 143
 144       $LOADED_FEATURES.include?('require_spec_recursive.rb').should == false
 145
 146       require('require_spec_recursive').should == true
 147
 148       $LOADED_FEATURES.include?('require_spec_recursive.rb').should == true
 149       $require_spec_recursive.nil?.should == false
 150
 151     ensure
 152       Dir.chdir($require_fixture_dir) do
 153         `mv tmp1234 require_spec_recursive.rb`
 154       end
 155     end
 156   end
 157
 158   it "loads a .rb from a .rba in $LOAD_PATH" do
 159     require('require_spec_10.rb').should == true
 160     $require_spec_10.nil?.should == false
 161   end
 162
 163   it "loads a .rb from a .rba in $LOAD_PATH, only once" do
 164     $LOADED_FEATURES.delete 'require_spec_10.rb'
 165
 166     require('require_spec_10.rb').should == true
 167     a = $require_spec_2
 168     a.nil?.should == false
 169
 170     require('require_spec_2').should == false
 171     b = $require_spec_2
 172
 173     a.eql?(b).should == true
 174   end
 175
 176 end