public void TestWholeReplaced()
{
exprTree = new ExprIdentNodeImpl("swapped");
alias = "swapped";
resultingTree = ColumnNamedNodeSwapper.Swap(exprTree, alias, fullExpr);
Assert.IsTrue(resultingTree == fullExpr);
}
public void TestPartReplaced()
{
exprTree = MakeEqualsNode();
alias = "IntPrimitive";
resultingTree = ColumnNamedNodeSwapper.Swap(exprTree, alias, fullExpr);
Assert.IsTrue(resultingTree == exprTree);
var childNodes = resultingTree.ChildNodes;
var oldChildNodes = exprTree.ChildNodes;
Assert.IsTrue(childNodes.Length == 2);
Assert.IsTrue(childNodes[0] == fullExpr);
Assert.IsTrue(childNodes[1] == oldChildNodes[1]);
exprTree = resultingTree;
alias = "IntBoxed";
resultingTree = ColumnNamedNodeSwapper.Swap(exprTree, alias, fullExpr);
childNodes = resultingTree.ChildNodes;
Assert.IsTrue(childNodes.Length == 2);
Assert.IsTrue(childNodes[0] == fullExpr);
Assert.IsTrue(childNodes[1] == fullExpr);
exprTree = resultingTree;
ExprNode newFullExpr = new ExprIdentNodeImpl("new full expr");
alias = "full expression";
resultingTree = ColumnNamedNodeSwapper.Swap(exprTree, alias, newFullExpr);
childNodes = resultingTree.ChildNodes;
Assert.IsTrue(childNodes.Length == 2);
Assert.IsTrue(childNodes[0] == newFullExpr);
Assert.IsTrue(childNodes[1] == newFullExpr);
}