public void ParseCast()
{
double x = 5.1;
Expression<Func<int>> f = () => (int)x;
var node = ExpressionParser.Parse(f.Body);
var expected = new UnaryNode
{
Prefix = "(int)(",
PrefixValue = "5",
Operand = new ConstantNode(){Text = "x", Value = 5.1M.ToString()},
Suffix = ")"
};
Assert.AreEqual(expected, node);
}
public void ParseUnaryNegate()
{
var v = 5;
Expression<Func<int>> f = () => -v;
var node = ExpressionParser.Parse(f.Body);
var expected = new UnaryNode
{
Prefix = "-",
PrefixValue = "-5",
Operand = new ConstantNode(){Text = "v", Value = "5"},
};
Assert.AreEqual(expected, node);
}
public void ParseUnaryNot()
{
var v = true;
Expression<Func<bool>> f = () => !v;
var node = ExpressionParser.Parse(f.Body);
var expected = new UnaryNode
{
Prefix = "!",
PrefixValue = "False",
Operand = new ConstantNode(){Text = "v", Value = "True"},
};
Assert.AreEqual(expected, node);
}
public void ParseUnaryNotWrappingBinaryOperation()
{
var v = true;
Expression<Func<bool>> f = () => !(v == false);
var node = ExpressionParser.Parse(f.Body);
var expected = new UnaryNode
{
Prefix = "!(",
PrefixValue = "True",
Operand = new BinaryNode
{
Left = new ConstantNode { Text = "v", Value = "True" },
Right = new ConstantNode { Text = "False", Value = null },
Operator = "==",
Value = "False"
},
Suffix = ")"
};
Assert.AreEqual(expected, node);
}