public void Evaluate()
{
ParserContext pc = new ParserContext(ParserContext.DefaultBufferSize);
FormatterContext fc = new FormatterContext(FormatterContext.DefaultBufferSize);
IsSetExpression ee = new IsSetExpression(new MessageExpression(3));
// Passing null message (as parameter and in the contexts).
try {
ee.EvaluateParse(ref pc);
Assert.Fail();
}
catch (ExpressionEvaluationException) {
}
try {
ee.EvaluateFormat(new StringField(3, "000000"), ref fc);
Assert.Fail();
}
catch (ExpressionEvaluationException) {
}
// Evaluate.
Message msg = MessagesProvider.GetMessage();
pc.CurrentMessage = msg;
Assert.IsTrue(ee.EvaluateParse(ref pc));
fc.CurrentMessage = msg;
Assert.IsTrue(ee.EvaluateFormat(new StringField(3, "000000"), ref fc));
ee = new IsSetExpression(new MessageExpression(4));
Assert.IsFalse(ee.EvaluateParse(ref pc));
Assert.IsFalse(ee.EvaluateFormat(new StringField(3, "000000"), ref fc));
}
public void InstantiationAndProperties()
{
IsSetExpression ee = new IsSetExpression();
Assert.IsNull(ee.MessageExpression);
MessageExpression me = new MessageExpression(3);
ee = new IsSetExpression(me);
Assert.IsTrue(ee.MessageExpression.GetLeafFieldNumber() == 3);
Assert.IsTrue(ee.MessageExpression == me);
me.FieldNumber = 5;
Assert.IsTrue(ee.MessageExpression.GetLeafFieldNumber() == 5);
ee.MessageExpression = null;
Assert.IsNull(ee.MessageExpression);
}