public void TestPartReplaced()
{
_exprTree = MakeEqualsNode();
_alias = "IntPrimitive";
_resultingTree = ColumnNamedNodeSwapper.Swap(_exprTree, _alias, _fullExpr);
Assert.IsTrue(_resultingTree == _exprTree);
ExprNode[] childNodes = _resultingTree.ChildNodes;
ExprNode[] 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);
}
public void TestWholeReplaced()
{
_exprTree = new ExprIdentNodeImpl("swapped");
_alias = "swapped";
_resultingTree = ColumnNamedNodeSwapper.Swap(_exprTree, _alias, _fullExpr);
Assert.IsTrue(_resultingTree == _fullExpr);
}
