rubyx/test/compiler/statements/test_while.rb

require_relative 'helper'

module Register
  class TestWhile < MiniTest::Test
    include Statements


    def test_while_mini
      @string_input    = <<HERE
class Object
  int main()
    while_plus(1)
      return 3
    end
  end
end
HERE
      @expect = [Label, Label,LoadConstant,IsPlus,LoadConstant,SetSlot,Branch,
                  Label,Label,RegisterTransfer,GetSlot,FunctionReturn]
      check
    end

    def test_while_assign
      @string_input    = <<HERE
class Object
  int main()
    int n = 5
    while_plus(n)
      n = n - 1
    end
    return n
  end
end
HERE
      @expect = [Label, LoadConstant,GetSlot,SetSlot,Label,GetSlot,GetSlot, IsPlus,GetSlot,
                GetSlot,LoadConstant,OperatorInstruction,GetSlot,SetSlot,Branch,
                  Label,GetSlot,GetSlot,SetSlot,Label,RegisterTransfer,GetSlot,FunctionReturn]
      check
    end


    def test_while_return
      @string_input    = <<HERE
class Object
  int main()
    int n = 10
    while_plus( n - 5)
      n = n + 1
      return n
    end
  end
end
HERE
      @expect = [Label, LoadConstant,GetSlot,SetSlot,Label,
                 GetSlot,GetSlot,LoadConstant,OperatorInstruction,IsPlus,
                 GetSlot, GetSlot,LoadConstant,OperatorInstruction, GetSlot,
                 SetSlot,GetSlot, GetSlot,SetSlot,Branch , Label ,
                   Label , RegisterTransfer,GetSlot,FunctionReturn]
      check
    end
  end
end