public void ContentIsSameAcrossInstances()
{
string content = ObjectModelHelpers.CleanupFileContents(@"
<Project xmlns='msbuildnamespace' ToolsVersion='msbuilddefaulttoolsversion'>
<ItemGroup>
Item group content
</ItemGroup>
</Project>
");
string path = FileUtilities.GetTemporaryFile();
try
{
File.WriteAllText(path, content);
ProjectStringCache cache = new ProjectStringCache();
XmlDocumentWithLocation document1 = new XmlDocumentWithLocation();
document1.StringCache = cache;
document1.Load(path);
XmlDocumentWithLocation document2 = new XmlDocumentWithLocation();
document2.StringCache = cache;
document2.Load(path);
XmlNodeList nodes1 = document1.GetElementsByTagName("ItemGroup");
XmlNodeList nodes2 = document2.GetElementsByTagName("ItemGroup");
Assert.AreEqual(1, nodes1.Count);
Assert.AreEqual(1, nodes2.Count);
XmlNode node1 = nodes1[0].FirstChild;
XmlNode node2 = nodes2[0].FirstChild;
Assert.IsNotNull(node1);
Assert.IsNotNull(node2);
Assert.AreNotSame(node1, node2);
Assert.AreSame(node1.Value, node2.Value);
}
finally
{
File.Delete(path);
}
}
public void ContentCanBeModified()
{
string content = ObjectModelHelpers.CleanupFileContents(@"
<Project xmlns='msbuildnamespace' ToolsVersion='msbuilddefaulttoolsversion'>
<ItemGroup attr1='attr1value'>
Item group content
</ItemGroup>
</Project>
");
string path = FileUtilities.GetTemporaryFile();
try
{
File.WriteAllText(path, content);
ProjectStringCache cache = new ProjectStringCache();
XmlDocumentWithLocation document1 = new XmlDocumentWithLocation();
document1.StringCache = cache;
document1.Load(path);
XmlDocumentWithLocation document2 = new XmlDocumentWithLocation();
document2.StringCache = cache;
document2.Load(path);
string outerXml1 = document1.OuterXml;
string outerXml2 = document2.OuterXml;
Assert.AreEqual(outerXml1, outerXml2);
XmlNodeList nodes1 = document1.GetElementsByTagName("ItemGroup");
XmlNodeList nodes2 = document2.GetElementsByTagName("ItemGroup");
Assert.AreEqual(1, nodes1.Count);
Assert.AreEqual(1, nodes2.Count);
XmlNode node1 = nodes1[0];
XmlNode node2 = nodes2[0];
Assert.IsNotNull(node1);
Assert.IsNotNull(node2);
Assert.AreNotSame(node1, node2);
Assert.AreEqual(1, node1.Attributes.Count);
Assert.AreEqual(1, node2.Attributes.Count);
Assert.AreSame(node1.Attributes[0].Value, node2.Attributes[0].Value);
node2.Attributes[0].Value = "attr1value";
Assert.AreEqual(node1.Attributes[0].Value, node2.Attributes[0].Value);
Assert.AreNotSame(node1.Attributes[0].Value, node2.Attributes[0].Value);
node1 = nodes1[0].FirstChild;
node2 = nodes2[0].FirstChild;
Assert.AreNotSame(node1, node2);
Assert.AreSame(node1.Value, node2.Value);
XmlText newText = document2.CreateTextNode("New Value");
XmlNode parent = node2.ParentNode;
parent.ReplaceChild(newText, node2);
Assert.AreNotEqual(outerXml1, document2.OuterXml);
}
finally
{
File.Delete(path);
}
}