require 'test/unit'
require 'test/test_helper'
require 'rbconfig'
require 'jruby/path_helper'


def load_behavior_block(&block)
  eval("__FILE__", block.binding)
end

class TestLoad < Test::Unit::TestCase
  include TestHelper

  def setup
    @prev_loaded_features = $LOADED_FEATURES.dup
    @prev_load_path = $LOAD_PATH.dup
  end

  def teardown
    $LOADED_FEATURES.clear
    $LOADED_FEATURES.concat(@prev_loaded_features)
    $LOAD_PATH.clear
    $LOAD_PATH.concat(@prev_load_path)
  end

  def test_require
    # Allow us to run MRI against non-Java dependent tests
    if RUBY_PLATFORM=~/java/
      $ruby_init = false
      file = __FILE__
      if (File::Separator == '\\')
        file.gsub!('\\\\', '/')
      end

      # JRUBY-1229, allow loading jar files without manifest
      assert_nothing_raised {
        require "test/jar_with_no_manifest.jar"
      }
    end

    assert require('test/requireTarget')
    assert !require('test/requireTarget')

    $loaded_foo_bar = false
    assert require('test/foo.bar')
    assert $loaded_foo_bar
  end

  # JRUBY-3231
  def test_load_with_empty_string_in_loadpath
    begin
      $:.unshift("")
      $loaded_foo_bar = false
      assert load('test/foo.bar.rb')
      assert $loaded_foo_bar
    ensure
      $:.shift
    end
  end

  def test_require_bogus
    assert_raises(LoadError) { require 'foo/' }
    assert_raises(LoadError) { require '' }

    # Yes, the following line is supposed to appear twice
    assert_raises(LoadError) { require 'NonExistantRequriedFile'}
    assert_raises(LoadError) { require 'NonExistantRequriedFile'}
  end

  def test_require_jar_should_make_its_scripts_accessible
    assert_equal "hi", run_in_sub_runtime(%{
      $hello = nil
      require 'test/jar_with_ruby_files'
      require 'hello_from_jar'
      $hello
    })
  end

  def test_require_nested_jar_should_make_its_scripts_accessible
    assert_equal "hi from nested jar", run_in_sub_runtime(%{
      $hello = nil
      require 'test/jar_with_ruby_files_in_jar'
      require 'jar_with_ruby_file'
      require 'hello_from_nested_jar'
      $hello
    })
  end

  def test_require_nested_jar_enables_class_loading_from_that_jar
    assert_in_sub_runtime %{
      require 'test/jar_with_nested_classes_jar'
      require 'jar_with_classes'
      java_import "test.HelloThere"
      HelloThere.new.message
    }
  end

  def call_extern_load_foo_bar(classpath = nil)
    cmd = ""
    cmd += "env CLASSPATH=#{classpath}" # classpath=nil, becomes empty CLASSPATH
    cmd += " #{Config::CONFIG['bindir']}/#{Config::CONFIG['RUBY_INSTALL_NAME']} -e "
    cmd += "'"+'begin load "./test/foo.bar.rb"; rescue Exception => e; print "FAIL"; else print "OK"; end'+"'"
    `#{cmd}`
  end

  unless WINDOWS                # FIXME for Windows
    def test_load_relative_with_classpath
      assert_equal call_extern_load_foo_bar(File.join('test', 'jar_with_ruby_files.jar')), 'OK'
    end

    def test_load_relative_with_classpath_ends_colon
      assert_equal call_extern_load_foo_bar(File.join('test', 'jar_with_ruby_files.jar') + ':'), 'OK'
    end

    def test_load_relative_without_classpath
      assert_equal 'OK', call_extern_load_foo_bar()
    end
  end

  def test_require_with_non_existent_jar_1
    $:.unshift "file:/someHopefullyUnexistentJarFile.jar/"

    filename = File.join(File.dirname(__FILE__), "blargus1.rb")
    require_name = File.join(File.dirname(__FILE__), "blargus1")

    assert !defined?($_blargus_has_been_loaded_oh_yeah_baby_1)

    File.open(filename, "w") do |f|
      f.write <<OUT
$_blargus_has_been_loaded_oh_yeah_baby_1 = true
OUT
    end

    require require_name

    assert $_blargus_has_been_loaded_oh_yeah_baby_1
  ensure
    File.unlink(filename) rescue nil
    $:.shift
  end

  def test_require_with_non_existent_jar_2
    $:.unshift "file:/someHopefullyUnexistentJarFile.jar"

    filename = File.join(File.dirname(__FILE__), "blargus2.rb")
    require_name = File.join(File.dirname(__FILE__), "blargus2")

    assert !defined?($_blargus_has_been_loaded_oh_yeah_baby_2)

    File.open(filename, "w") do |f|
      f.write <<OUT
$_blargus_has_been_loaded_oh_yeah_baby_2 = true
OUT
    end

    require require_name

    assert $_blargus_has_been_loaded_oh_yeah_baby_2
  ensure
    File.unlink(filename) rescue nil
    $:.shift
  end

  def test_require_with_non_existent_jar_3
    $:.unshift "file:/someHopefullyUnexistentJarFile.jar!/dir/inside/that/doesnt/work"

    filename = File.join(File.dirname(__FILE__), "blargus3.rb")
    require_name = File.join(File.dirname(__FILE__), "blargus3")

    assert !defined?($_blargus_has_been_loaded_oh_yeah_baby_3)

    File.open(filename, "w") do |f|
      f.write <<OUT
$_blargus_has_been_loaded_oh_yeah_baby_3 = true
OUT
    end

    require require_name

    assert $_blargus_has_been_loaded_oh_yeah_baby_3
  ensure
    File.unlink(filename) rescue nil
    $:.shift
  end

  def test_overriding_require_shouldnt_cause_problems
    eval(<<DEPS, binding, "deps")
class ::Object
  alias old_require require

  def require(file)
    old_require(file)
  end
end
DEPS

    require 'test/test_loading_behavior'

    res = File.expand_path($loading_behavior_result)

    assert_equal File.expand_path(File.join('test', 'test_loading_behavior.rb')), res
  end

  # JRUBY-3894
  def test_require_relative_from_jar_in_classpath
    assert_in_sub_runtime %{
      $CLASSPATH << File.join(
        File.dirname('#{__FILE__}'), 'jar_with_relative_require1.jar')
      require 'test/require_relative1'
      $loaded_relative_foo
    }
  end

  # JRUBY-4875
  def test_require_relative_from_jar_in_classpath_with_different_cwd
    assert_in_sub_runtime %{
      Dir.chdir("test") do
        $CLASSPATH << File.join(File.dirname('#{__FILE__}'), 'jar_with_relative_require1.jar')
        require 'test/require_relative1'
        $loaded_relative_foo
      end
    }
  end

  def test_loading_jar_with_dot_so
    assert_in_sub_runtime %{
      require 'test/jruby-3977.so.jar'
      load 'jruby-3977.rb'
      $jruby3977
    }
  end

  # JRUBY-5045
  def test_cwd_plus_dotdot_jar_loading
    assert_equal "hi", run_in_sub_runtime(%{
      $hello = nil
      require './test/../test/jar_with_ruby_files'
      require 'hello_from_jar'
      $hello
    })
  end
end
