public void ParseFileNotNameContainsExpressionTest()
{
string expressionText = "!($(File.Name) : '.Designer.')";
IConditionExpression expression = ConditionExpressionParser.Instance.Parse(
expressionText);
Assert.IsNotNull(expression, "Expected an expression instance.");
UnaryOperatorExpression negateExpression = expression as UnaryOperatorExpression;
Assert.IsNotNull(negateExpression, "Expected a unary operator expression.");
Assert.AreEqual(UnaryExpressionOperator.Negate, negateExpression.Operator, "Unexpected operator.");
BinaryOperatorExpression operatorExpression = negateExpression.InnerExpression as BinaryOperatorExpression;
Assert.IsNotNull(operatorExpression, "Expected a binary operator expression.");
Assert.AreEqual(BinaryExpressionOperator.Contains, operatorExpression.Operator, "Unexpected operator.");
FileAttributeExpression attributeExpression = operatorExpression.Left as FileAttributeExpression;
Assert.IsNotNull(attributeExpression, "Unexpected left node type.");
Assert.AreEqual(FileAttributeType.Name, attributeExpression.FileAttribute,
"Attribute expression was not parsed correctly.");
StringExpression stringExpression = operatorExpression.Right as StringExpression;
Assert.IsNotNull(stringExpression, "Unexpected right node type.");
Assert.AreEqual(".Designer.", stringExpression.Text, "String expression was not parsed correctly.");
}
/// <summary>
/// Gets the expression value.
/// </summary>
/// <param name="expression">The expression.</param>
/// <param name="file">The file to evaluate the expression against.</param>
/// <returns>The expression value as text.</returns>
private static string GetExpressionValue(IConditionExpression expression, FileInfo file)
{
string value = string.Empty;
if (expression != null && file != null)
{
StringExpression stringExpression = expression as StringExpression;
if (stringExpression != null)
{
value = stringExpression.Text;
}
else
{
FileAttributeExpression attributeExpression = expression as FileAttributeExpression;
if (attributeExpression != null)
{
value = FileUtilities.GetAttribute(attributeExpression.FileAttribute, file);
}
}
}
return(value);
}
public void ToStringTest()
{
FileAttributeExpression expression = new FileAttributeExpression(FileAttributeType.Path);
Assert.AreEqual("$(File.Path)", expression.ToString(), "Unexpected string representation.");
}
