require_relative '../../spec_helper'

describe "Encoding.locale_charmap" do
  it "returns a String" do
    Encoding.locale_charmap.should.instance_of?(String)
  end

  describe "when setting LC_ALL=C" do
    before :each do
      @old_lc_all = ENV['LC_ALL']
    end

    after :each do
      ENV['LC_ALL'] = @old_lc_all
    end

    # FIXME: Get this working on Windows
    platform_is :linux do
      platform_is_not :android do
        it "returns a value based on the LC_ALL environment variable" do
          ENV['LC_ALL'] = 'C'
          ruby_exe("print Encoding.locale_charmap").should == 'ANSI_X3.4-1968'
        end
      end
    end

    platform_is :freebsd, :openbsd, :darwin do
      it "returns a value based on the LC_ALL environment variable" do
        ENV['LC_ALL'] = 'C'
        ruby_exe("print Encoding.locale_charmap").should == 'US-ASCII'
      end
    end

    platform_is :netbsd do
      it "returns a value based on the LC_ALL environment variable" do
        ENV['LC_ALL'] = 'C'
        ruby_exe("print Encoding.locale_charmap").should == '646'
      end
    end

    platform_is :android do
      it "always returns UTF-8" do
        ENV['LC_ALL'] = 'C'
        ruby_exe("print Encoding.locale_charmap").should == 'UTF-8'
      end
    end

    platform_is :bsd, :darwin, :linux do
      it "is unaffected by assigning to ENV['LC_ALL'] in the same process" do
        old_charmap = Encoding.locale_charmap
        ENV['LC_ALL'] = 'C'
        Encoding.locale_charmap.should == old_charmap
      end
    end
  end
end
