public static bool GetAttributeBoolValue(this XmlElement me, string name, XmlElementOption option = XmlElementOption.MustHaveValue, bool defaultValue = false)
{
XmlAttribute attrib = me.GetAttributeNode(name);
if (attrib == null)
{
if (MustExist(option))
{
throw new MissingAttributeException(me, name);
}
return(defaultValue);
}
if (MustHaveValue(option) && string.IsNullOrEmpty(attrib.Value))
{
throw new InvalidAttributeValueException(me, name);
}
if (string.IsNullOrEmpty(attrib.Value))
{
return(defaultValue);
}
try
{
return(bool.Parse(attrib.Value));
}
catch (Exception ex)
{
throw new InvalidAttributeValueException(me, name, ex);
}
}
public static int GetAttributeIntValue(this XmlElement me, string name, XmlElementOption option = XmlElementOption.MustHaveValue, int defaultValue = 0)
{
XmlAttribute attrib = me.GetAttributeNode(name);
if (attrib == null)
{
if (MustExist(option))
{
throw new MissingAttributeException(me, name);
}
return(defaultValue);
}
if (MustHaveValue(option) && string.IsNullOrEmpty(attrib.Value))
{
throw new InvalidAttributeValueException(me, name);
}
if (string.IsNullOrEmpty(attrib.Value))
{
return(defaultValue);
}
int value;
if (!int.TryParse(attrib.Value, NumberStyles.Integer, CultureInfo.InvariantCulture, out value))
{
throw new InvalidAttributeValueException(me, name);
}
return(value);
}
public void GetAttributeIntValue(string xml, XmlElementOption option, int defaultValue, int expectedResult)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
int value = doc.DocumentElement.GetAttributeIntValue("value", option, defaultValue);
Assert.That(value == expectedResult);
}
public void GetAttributeBoolValue(string xml, XmlElementOption option, bool expectedResult)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
bool value = doc.DocumentElement.GetAttributeBoolValue("value", option);
Assert.That(value == expectedResult);
}
//TODO [TestCase("<Test />", XmlElementOption.MustExist, typeof(MissingAttributeException))]
public void GetAttributeStringValueNegative(string xml, XmlElementOption option, Type expectedException)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
Assert.That(() =>
{
string name = doc.DocumentElement.GetAttributeStringValue("value");
},
Throws.TypeOf(expectedException));
}
public void GetAttributeStringValue(string xml, XmlElementOption option, string expectedResult)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
string name = doc.DocumentElement.GetAttributeStringValue("value", option);
if (expectedResult != null)
{
Assert.That(name.Equals(expectedResult));
}
else
{
Assert.That(name == null);
}
}
public static bool MustHaveValue(XmlElementOption option)
{
return(option == XmlElementOption.MustHaveValue);
}
public static string GetAttributeStringValue(this XmlElement me, string name, XmlElementOption option = XmlElementOption.MustHaveValue)
{
XmlAttribute attrib = me.GetAttributeNode(name);
if (attrib == null)
{
if (MustExist(option))
{
//TODO add option to save attribute
return("");
throw new MissingAttributeException(me, name);
}
return(null);
}
if (MustHaveValue(option) && string.IsNullOrEmpty(attrib.Value))
{
throw new InvalidAttributeValueException(me, name);
}
return(attrib.Value);
}
