public void InstantiationAndProperties()
{
FieldValueEqualsStringOperator ee = new FieldValueEqualsStringOperator();
Assert.IsNull(ee.ValueExpression);
Assert.IsNull(ee.MessageExpression);
StringConstantExpression sce = new StringConstantExpression("202030302020");
MessageExpression me = new MessageExpression(3);
ee = new FieldValueEqualsStringOperator(me, sce);
Assert.IsTrue(ee.ValueExpression == sce);
Assert.IsTrue(ee.MessageExpression == me);
ee.ValueExpression = null;
ee.MessageExpression = null;
Assert.IsNull(ee.ValueExpression);
Assert.IsNull(ee.MessageExpression);
try {
ee.ValueExpression = new BinaryConstantExpression("30313233");
Assert.Fail();
}
catch (ArgumentException) {
}
}
public void Evaluate()
{
ParserContext pc = new ParserContext(ParserContext.DefaultBufferSize);
FormatterContext fc = new FormatterContext(FormatterContext.DefaultBufferSize);
FieldValueEqualsStringOperator ee = new FieldValueEqualsStringOperator(
new MessageExpression(1), new StringConstantExpression(string.Empty));
Message msg = new Message();
msg.Fields.Add(new StringField(1, null));
// Both values are empty.
pc.CurrentMessage = msg;
Assert.IsTrue(ee.EvaluateParse(ref pc));
fc.CurrentMessage = msg;
Assert.IsTrue(ee.EvaluateFormat(new StringField(3, "000000"), ref fc));
ee = new FieldValueEqualsStringOperator(
new MessageExpression(1), new StringConstantExpression("1520253035404550"));
// Field value is null.
Assert.IsFalse(ee.EvaluateParse(ref pc));
Assert.IsFalse(ee.EvaluateFormat(new StringField(3, "000000"), ref fc));
ee = new FieldValueEqualsStringOperator(
new MessageExpression(3), new StringConstantExpression(null));
msg = MessagesProvider.GetMessage();
// Constant is null.
pc.CurrentMessage = msg;
Assert.IsFalse(ee.EvaluateParse(ref pc));
fc.CurrentMessage = msg;
Assert.IsFalse(ee.EvaluateFormat(new StringField(3, "000000"), ref fc));
ee = new FieldValueEqualsStringOperator(
new MessageExpression(3), new StringConstantExpression("152025303540"));
// Different lengths.
Assert.IsFalse(ee.EvaluateParse(ref pc));
Assert.IsFalse(ee.EvaluateFormat(new StringField(3, "000000"), ref fc));
ee = new FieldValueEqualsStringOperator(
new MessageExpression(3), new StringConstantExpression("1520253035404551"));
// Different data.
Assert.IsFalse(ee.EvaluateParse(ref pc));
Assert.IsFalse(ee.EvaluateFormat(new StringField(3, "000000"), ref fc));
ee = new FieldValueEqualsStringOperator(
new MessageExpression(3), new StringConstantExpression("999999"));
// Equals.
Assert.IsTrue(ee.EvaluateParse(ref pc));
Assert.IsTrue(ee.EvaluateFormat(new StringField(3, "000000"), ref fc));
}