public async Task WriteCustomData()
{
var en = new CustomSolutionItemNode <TestSolutionExtension> ();
WorkspaceObject.RegisterCustomExtension(en);
try {
string solFile = Util.GetSampleProject("solution-custom-data", "custom-data.sln");
var sol = new Solution();
var ext = sol.GetService <TestSolutionExtension> ();
Assert.NotNull(ext);
ext.Prop1 = "one";
ext.Prop2 = "two";
ext.Extra = new ComplexSolutionData {
Prop3 = "three",
Prop4 = "four"
};
var savedFile = solFile + ".saved.sln";
await sol.SaveAsync(savedFile, Util.GetMonitor());
Assert.AreEqual(File.ReadAllText(solFile), File.ReadAllText(savedFile));
sol.Dispose();
} finally {
WorkspaceObject.UnregisterCustomExtension(en);
}
}