require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)

ruby_version_is "1.9" do
  describe "UnboundMethod#source_location" do
    before(:each) do
      @method = UnboundMethodSpecs::SourceLocation.method(:location).unbind
    end

    it "sets the first value to the path of the file in which the method was defined" do
      file = @method.source_location.first
      file.should be_an_instance_of(String)
      file.should == File.dirname(__FILE__) + '/fixtures/classes.rb'
    end

    it "sets the last value to a Fixnum representing the line on which the method was defined" do
      line = @method.source_location.last
      line.should be_an_instance_of(Fixnum)
      line.should == 5
    end

    it "returns the last place the method was defined" do
      UnboundMethodSpecs::SourceLocation.method(:redefined).unbind.source_location.last.should == 13
    end

    it "returns the location of the original method even if it was aliased" do
      UnboundMethodSpecs::SourceLocation.instance_method(:aka).source_location.last.should == 17
    end

    it "works for define_method methods" do
      line = nil
      cls = Class.new do
        line = __LINE__ + 1
        define_method(:foo) { }
      end

      method = cls.instance_method(:foo)
      method.source_location[0].should =~ /#{__FILE__}/
      method.source_location[1].should == line
    end

    it "works for define_singleton_method methods" do
      line = nil
      cls = Class.new do
        line = __LINE__ + 1
        define_singleton_method(:foo) { }
      end

      method = cls.method(:foo)
      method.source_location[0].should =~ /#{__FILE__}/
      method.source_location[1].should == line
    end
  end
end
