System.Xml.Tests.TCValidateElement.CheckThatWarningOccursWhenInvalidSchemaLocationIsProvided C# (CSharp) Method

        public void CheckThatWarningOccursWhenInvalidSchemaLocationIsProvided()
        {
            XmlSchemaValidator val;
            XmlSchemaSet schemas = new XmlSchemaSet();
            XmlSchemaInfo info = new XmlSchemaInfo();
            CValidationEventHolder holder = new CValidationEventHolder();
            XmlNamespaceManager ns = new XmlNamespaceManager(new NameTable());

            schemas.Add("uri:tempuri", XmlReader.Create(new StringReader("<?xml version=\"1.0\" ?>\n" +
                                                              "<xs:schema xmlns:xs=\"http://www.w3.org/2001/XMLSchema\"\n" +
                                                              "           targetNamespace=\"uri:tempuri\">\n" +
                                                              "    <xs:complexType name=\"rootType\">\n" +
                                                              "        <xs:sequence />\n" +
                                                              "    </xs:complexType>\n" +
                                                              "</xs:schema>")));
            val = CreateValidator(schemas, ns, AllFlags);
            val.XmlResolver = new XmlUrlResolver();
            val.ValidationEventHandler += new ValidationEventHandler(holder.CallbackA);
            ns.AddNamespace("t", "uri:tempuri");

            val.Initialize();
            val.ValidateElement("root", "", info, "t:rootType", null, "uri:tempuri " + Path.Combine(TestData, "__NonExistingFile__.xsd"), null);

            Assert.True(holder.IsCalledA);
            Assert.Equal(holder.lastSeverity, XmlSeverityType.Warning);
            //XmlExceptionVerifier.IsExceptionOk(holder.lastException, "Sch_CannotLoadSchema", new string[] { "uri:tempuri", null });

            return;
        }