public void Clone_UnaryExpression()
{
//Arrange
var expected = new UnaryExpression(OperatorTypes.Sign, new NumberExpression(0));
//Act
var actual = (UnaryExpression)expected.Clone();
//Assert
Assert.IsTrue(!Object.ReferenceEquals(actual, expected));
Assert.AreEqual(actual.Execute().Count.Re.ToNumber(), expected.Execute().Count.Re.ToNumber());
}
public virtual Differences VisitUnaryExpression(UnaryExpression unaryExpression1, UnaryExpression unaryExpression2){
Differences differences = new Differences(unaryExpression1, unaryExpression2);
if (unaryExpression1 == null || unaryExpression2 == null){
if (unaryExpression1 != unaryExpression2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
UnaryExpression changes = (UnaryExpression)unaryExpression2.Clone();
UnaryExpression deletions = (UnaryExpression)unaryExpression2.Clone();
UnaryExpression insertions = (UnaryExpression)unaryExpression2.Clone();
if (unaryExpression1.NodeType == unaryExpression2.NodeType) differences.NumberOfSimilarities++; else differences.NumberOfDifferences++;
Differences diff = this.VisitExpression(unaryExpression1.Operand, unaryExpression2.Operand);
if (diff == null){Debug.Assert(false); return differences;}
changes.Operand = diff.Changes as Expression;
deletions.Operand = diff.Deletions as Expression;
insertions.Operand = diff.Insertions as Expression;
Debug.Assert(diff.Changes == changes.Operand && diff.Deletions == deletions.Operand && diff.Insertions == insertions.Operand);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
if (differences.NumberOfDifferences == 0){
differences.Changes = null;
differences.Deletions = null;
differences.Insertions = null;
}else{
differences.Changes = changes;
differences.Deletions = deletions;
differences.Insertions = insertions;
}
return differences;
}
public override Expression VisitUnaryExpression(UnaryExpression unaryExpression){
if (unaryExpression == null) return null;
return base.VisitUnaryExpression((UnaryExpression)unaryExpression.Clone());
}