Ruby » Ruby 1.8

require File.dirname(__FILE__) + '/../../spec_helper'

require File.dirname(__FILE__) + '/fixtures/classes'

def f

  __method__

end

alias g f

describe "Kernel.__method__" do

  it "returns the current method, even when aliased" do

    f.should == :f

  end

  it "returns the original name when aliased method" do

    g.should == :f

  end

  it "returns the caller from blocks too" do

    def h

      (1..2).map { __method__ }

    end

    h.should == [:h, :h]

  end

  it "returns the caller from define_method too" do

    klass = Class.new {define_method(:f) {__method__}}

    klass.new.f.should == :f

  end

  it "returns the caller from block inside define_method too" do

    klass = Class.new {define_method(:f) { 1.times{break __method__}}}

    klass.new.f.should == :f

  end

  it "returns the caller from a define_method called from the same class" do

    class C

      define_method(:f) { 1.times{break __method__}}

      def g; f end

    end

    C.new.g.should == :f

  end

  it "returns method name even from eval" do

    def h

      eval "__method__"

    end

    h.should == :h

  end

  it "returns nil when not called from a method" do

    __method__.should == nil

  end

end