public void TestGetDocumentValue()
        {
            // Arrange
            const string contents =
                @"<html>
                    <body>
                        <span>test</span>
                    </body>
                  </html>";
            var doc = new HtmlParser(contents);

            // Act
            var result = doc.GetDocumentValue("//span", null);

            // Arrange
            Assert.AreEqual(result, "test");
        }
        public void TestGetDocumentValueWithAttribute()
        {
            // Arrange
            const string contents =
                @"<html>
                    <body>
                        <span class='col'>test</span>
                    </body>
                  </html>";
            var doc = new HtmlParser(contents);

            // Act
            var result = doc.GetDocumentValue("//span", "class");

            // Arrange
            Assert.AreEqual(result, "col");
        }