public void WhiteSpacesAndEmptyValues()
{
// "When Microsoft’s DOM builder receives a text node from the parser
// that contains only white space, it is thrown away." - so if it's ONLY
// spaces, it's nothing, but spaces are NOT trimmed.
// For attributes, spaces are preserved even when there's only spaces.
var doc = XmlHelper.CreateXPathDocument(@"<root>
<item><prop/></item>
<item><prop></prop></item>
<item><prop> </prop></item>
<item><prop>
</prop></item>
<item><prop> ooo </prop></item>
<item><prop> ooo
</prop></item>
<item x=""""/>
<item x="" ""/>
</root>");
var docNav = doc.CreateNavigator();
Assert.AreEqual(@"<root>
<item>
<prop />
</item>
<item>
<prop></prop>
</item>
<item>
<prop></prop>
</item>
<item>
<prop></prop>
</item>
<item>
<prop> ooo </prop>
</item>
<item>
<prop> ooo
</prop>
</item>
<item x="""" />
<item x="" "" />
</root>".Lf(), docNav.OuterXml.Lf());
docNav.MoveToRoot();
Assert.IsTrue(docNav.MoveToFirstChild());
Assert.IsTrue(docNav.MoveToFirstChild());
Assert.IsTrue(docNav.MoveToFirstChild()); // prop
Assert.IsTrue(docNav.IsEmptyElement);
Assert.IsTrue(docNav.MoveToParent());
Assert.IsTrue(docNav.MoveToNext());
Assert.IsTrue(docNav.MoveToFirstChild()); // prop
Assert.IsFalse(docNav.IsEmptyElement);
Assert.AreEqual("", docNav.Value); // contains an empty text node
Assert.IsTrue(docNav.MoveToParent());
Assert.IsTrue(docNav.MoveToNext());
Assert.IsTrue(docNav.MoveToFirstChild()); // prop
Assert.IsFalse(docNav.IsEmptyElement);
Assert.AreEqual("", docNav.Value); // contains an empty text node
var source = new TestSource8();
var nav = new NavigableNavigator(source);
// shows how whitespaces are handled by NavigableNavigator
Assert.AreEqual(@"<root id=""-1"" attr="""">
<item id=""1"" attr="""">
<prop />
</item>
<item id=""2"" attr="""">
<prop></prop>
</item>
<item id=""3"" attr="" "">
<prop> </prop>
</item>
<item id=""4"" attr="""">
<prop>
</prop>
</item>
<item id=""5"" attr="" ooo "">
<prop> ooo </prop>
</item>
</root>".Lf(), nav.OuterXml.Lf());
}
public void WhiteSpacesAndEmptyValues()
{
// "When Microsoft’s DOM builder receives a text node from the parser
// that contains only white space, it is thrown away." - so if it's ONLY
// spaces, it's nothing, but spaces are NOT trimmed.
// For attributes, spaces are preserved even when there's only spaces.
var doc = XmlHelper.CreateXPathDocument(@"<root>
<item><prop/></item>
<item><prop></prop></item>
<item><prop> </prop></item>
<item><prop>
</prop></item>
<item><prop> ooo </prop></item>
<item><prop> ooo
</prop></item>
<item x=""""/>
<item x="" ""/>
</root>");
var docNav = doc.CreateNavigator();
Assert.AreEqual(@"<root>
<item>
<prop />
</item>
<item>
<prop></prop>
</item>
<item>
<prop></prop>
</item>
<item>
<prop></prop>
</item>
<item>
<prop> ooo </prop>
</item>
<item>
<prop> ooo
</prop>
</item>
<item x="""" />
<item x="" "" />
</root>".Lf(), docNav.OuterXml.Lf());
docNav.MoveToRoot();
Assert.IsTrue(docNav.MoveToFirstChild());
Assert.IsTrue(docNav.MoveToFirstChild());
Assert.IsTrue(docNav.MoveToFirstChild()); // prop
Assert.IsTrue(docNav.IsEmptyElement);
Assert.IsTrue(docNav.MoveToParent());
Assert.IsTrue(docNav.MoveToNext());
Assert.IsTrue(docNav.MoveToFirstChild()); // prop
Assert.IsFalse(docNav.IsEmptyElement);
Assert.AreEqual("", docNav.Value); // contains an empty text node
Assert.IsTrue(docNav.MoveToParent());
Assert.IsTrue(docNav.MoveToNext());
Assert.IsTrue(docNav.MoveToFirstChild()); // prop
Assert.IsFalse(docNav.IsEmptyElement);
Assert.AreEqual("", docNav.Value); // contains an empty text node
var source = new TestSource8();
var nav = new NavigableNavigator(source);
// shows how whitespaces are handled by NavigableNavigator
Assert.AreEqual(@"<root id=""-1"" attr="""">
<item id=""1"" attr="""">
<prop />
</item>
<item id=""2"" attr="""">
<prop></prop>
</item>
<item id=""3"" attr="" "">
<prop> </prop>
</item>
<item id=""4"" attr="""">
<prop>
</prop>
</item>
<item id=""5"" attr="" ooo "">
<prop> ooo </prop>
</item>
</root>".Lf(), nav.OuterXml.Lf());
}