public void SelectElements_WithInvalidPath_ThrowsXPathException()
{
string xml =
@"<testElement>1234</testElement>";
string path = "[[[";
XMLElement element = new XMLElement(XElement.Parse(xml));
Assert.Throws <XPathException>(() => element.SelectElements(path));
}
public void SelectElements_WithAValidPathCorrespondingToOneElement_ReturnsASetWithOneElement()
{
string xml =
@"<testElement>123</testElement>";
string path = "/";
XMLElement element = new XMLElement(XElement.Parse(xml));
var actual = element.SelectElements(path);
Assert.That(actual, Has.Count.EqualTo(1));
}
public void SelectElements_WithAValidPathCorrespondingToNoElements_ReturnsAnEmptySet()
{
string xml =
@"<testElement>123</testElement>";
string path = "notAnElement";
XMLElement element = new XMLElement(XElement.Parse(xml));
var actual = element.SelectElements(path);
Assert.That(actual, Is.Empty);
}
public void SelectElements_WithAValidPathCorrespondingToTwoElements_ReturnsASetWithTwoElements()
{
string xml =
@"<root>
<testElement>1234</testElement>
<testElement>45789</testElement>
</root>";
string path = "/testElement";
XMLElement element = new XMLElement(XElement.Parse(xml));
var actual = element.SelectElements(path);
Assert.That(actual, Has.Count.EqualTo(2));
}