public void ParseStringAndObjectTest()
{
ParseTree tree = _parser.Parse(INST_3);
Assert.IsNotNull(tree);
Tuple t = (Tuple)tree.Eval(null);
Assert.IsNotNull(t);
_fields2.Add("dog");
_fields2.Add(new DADTestA(1, "Cat"));
_tuple2 = new Tuple(_fields2);
Assert.AreEqual(_tuple2.GetNumberOfFields(), t.GetNumberOfFields());
Assert.AreEqual(_tuple2, t);
}
/// <summary>
/// Given two tuples check if they are equals.
/// Be aware that Equals support all WildCards operations. So <"dog", "*"> is equal to <"dog", "brown">.
/// </summary>
/// <param name="obj">An object of type Tuple to compare</param>
/// <returns>True if the two objects are the same (or wild-identical). False otherwise. </returns>
public override bool Equals(object obj)
{
//If other than Tuple object is given return false immediately
if (obj.GetType() == this.GetType())
{
Tuple tuple = obj as Tuple;
// 1 -> Starts by comparing the number of fields of two tuples
int numberOfFields = this.GetNumberOfFields();
if (tuple.GetNumberOfFields() == numberOfFields)
{
List <Object> otherObjects = tuple.GetAllFields();
for (int i = 0; i < numberOfFields; i++)
{
// 2 -> Compare the types of the fields.
//When tuple fields are string instead of calling equals method call the wildcomparator
//to check for wildcards in strings
if (tuple.GetFieldByNumber(i).GetType() == typeof(string))
{
if (this.GetFieldByNumber(i) == null)
{
return(false);
}
if (this.GetFieldByNumber(i).GetType() != typeof(string))
{
//Wildcard support of class name using objects
if (WildComparator(tuple.GetFieldByNumber(i) as string, this.GetFieldByNumber(i)) == false)
{
return(false);
}
}
else if (WildComparator(tuple.GetFieldByNumber(i) as string, this.GetFieldByNumber(i) as string) == false)
{
return(false);
}
}
// 3 -> Cross comparation
// Wild card can be on this object or on obj argument
else if (this.GetFieldByNumber(i).GetType() == typeof(string))
{
if (tuple.GetFieldByNumber(i) == null)
{
return(false);
}
if (tuple.GetFieldByNumber(i).GetType() != typeof(string))
{
//Wildcard support of class name using objects
if (WildComparator(this.GetFieldByNumber(i) as string, tuple.GetFieldByNumber(i)) == false)
{
return(false);
}
}
else if (WildComparator(this.GetFieldByNumber(i) as string, tuple.GetFieldByNumber(i) as string) == false)
{
return(false);
}
}
else if (!(this.GetFieldByNumber(i).Equals(tuple.GetFieldByNumber(i))))
{
return(false);
}
}
return(true);
}
}
return(false);
}