public void handler_overwrites_existing_files_with_xml_output()
{
//Arrange
var path = "sample-output.xml";
var firstResultSet = new BigInteger[] { 2, 3, 5 };
var firstHandler = new XmlIOHandler(path);
firstHandler.Write(firstResultSet);
if (!File.Exists(path))
{
Assert.Inconclusive("Unable to create test file to overwrite");
}
var updatedResultSet = new BigInteger[] { 1, 2, 3 };
var newHandler = new XmlIOHandler(path);
//Act
newHandler.Write(updatedResultSet);
//Assert
var doc = XDocument.Load(path);
var root = doc.Element("fiboutput");
Assert.IsNotNull(root);
Assert.IsTrue(root.Elements("result").Any());
for (var i = 0; i < updatedResultSet.Length; i++)
{
Assert.IsNotNull(root.Elements("result").ElementAtOrDefault(i));
Assert.AreEqual(updatedResultSet[i].ToString("R0"), root.Elements("result").ElementAt(i).Value);
}
}
public void handler_can_accept_xml_input()
{
//Arrange
var handler = new XmlIOHandler("input.xml");
var expectedResult = 22;
//Act
var result = handler.GetNumber();
//Assert
Assert.AreEqual(expectedResult, result);
}
public void handler_throws_application_exception_when_given_invalid_markup()
{
//Arrange
var path = "invalid-markup-input.xml";
var handler = new XmlIOHandler(path);
if (!File.Exists(path))
{
Assert.Inconclusive("invalid-markup-input.xml file was not present to test with");
}
//Act
try
{
var result = handler.GetNumber();
Assert.Fail("did not throw ArgumentException with path paramater");
}
//Assert
catch (ApplicationException)
{
Assert.IsTrue(true); //Pass!
}
}
public void handler_throws_application_exception_when_given_invalid_schema()
{
//Arrange
var path = "invalid-schema-elements-input.xml";
var handler = new XmlIOHandler(path);
if (!File.Exists(path))
{
Assert.Inconclusive("invalid-schema-elements-input.xml file was not present to test with");
}
//Act
try
{
var result = handler.GetNumber();
Assert.Fail("did not throw ArgumentException with path paramater");
}
//Assert
catch (ArgumentException ex)
{
Assert.AreEqual("path", ex.ParamName);
}
}
public void handler_writes_xml_output()
{
//Arrange
var path = "handler-writes-xml-output.xml";
var expectedResults = new BigInteger[] { 2, 3, 5 };
var handler = new XmlIOHandler(path);
//Act
handler.Write(expectedResults);
//Assert
var doc = XDocument.Load(path);
var root = doc.Element("fiboutput");
Assert.IsNotNull(root);
Assert.IsTrue(root.Elements("result").Any());
for (var i = 0; i < expectedResults.Length; i++)
{
Assert.IsNotNull(root.Elements("result").ElementAtOrDefault(i));
Assert.AreEqual(expectedResults[i].ToString("R0"), root.Elements("result").ElementAt(i).Value);
}
}
public void handler_throws_argument_exception_when_given_invalid_path()
{
//Arrange
var handler = new XmlIOHandler("does-not-exist.xml");
//Act
try
{
var result = handler.GetNumber();
Assert.Fail("did not throw ArgumentException with path paramater");
}
//Assert
catch (ArgumentException ex)
{
Assert.AreEqual("path", ex.ParamName);
}
}