public void TestIsXmlChar()
{
Assert.AreEqual(false, XmlEncoder.IsXmlChar('\u0001'));
Assert.AreEqual(false, XmlEncoder.IsXmlChar('\u0005'));
Assert.AreEqual(false, XmlEncoder.IsXmlChar('\u0007'));
Assert.AreEqual(false, XmlEncoder.IsXmlChar('\u0008'));
Assert.AreEqual(true, XmlEncoder.IsXmlChar('J'));
Assert.AreEqual(true, XmlEncoder.IsXmlChar('+'));
Assert.AreEqual(true, XmlEncoder.IsXmlChar('S'));
Assert.AreEqual(true, XmlEncoder.IsXmlChar('4'));
Assert.AreEqual(true, XmlEncoder.IsXmlChar('!'));
Assert.AreEqual(true, XmlEncoder.IsXmlChar('$'));
}