static void VariableTest6(BooleanContext context, PrefixBooleanParser parser)
{
var e1 = parser.Parse("AND OR AND X Y NOT Z W");
context.SetVariable("X", true);
context.SetVariable("Y", true);
context.SetVariable("Z", true);
context.SetVariable("W", false);
var expected_value = false;
var actual_value = EvaluateAndPrint(e1, context);
Debug.Assert(actual_value == expected_value);
}
static void VariableTest1(BooleanContext context, PrefixBooleanParser parser)
{
var e1 = parser.Parse("X");
context.SetVariable("X", true);
var expected_value = true;
var actual_value = EvaluateAndPrint(e1, context);
Debug.Assert(actual_value == expected_value);
}