public void TestGetResult_Empty()
{
BigInteger[] data = {};
FibonacciResultSet testSet = new FibonacciResultSet { Results = data };
BigInteger result = testSet.GetResult(5);
}
public void TestGetResult_Negative()
{
BigInteger[] data = { 0, 1, 2, 3 };
FibonacciResultSet testSet = new FibonacciResultSet { Results = data };
BigInteger result = testSet.GetResult(-1);
}
public FibonacciResultSet Compute(int len)
{
if (len < 0)
{
throw new ArgumentOutOfRangeException();
}
var results = new BigInteger[len];
// zero case
if (len == 0)
{
return new FibonacciResultSet { Results = results };
}
// one case
results[0] = 0;
if (len == 1)
{
return new FibonacciResultSet { Results = results };
}
// compute values
results[1] = 1;
for (int i = 2; i < len; i++)
{
results[i] = results[i - 1] + results[i - 2];
}
FibonacciResultSet resultSet = new FibonacciResultSet { Results = results };
return resultSet;
}
public void TestGetAllResults()
{
BigInteger[] data = { 0, 1, 2, 3 };
FibonacciResultSet testSet = new FibonacciResultSet { Results = data };
BigInteger[] allResults = testSet.GetAllResults();
CollectionAssert.AreEqual(data, allResults);
}
public void TestGetResult_Valid()
{
BigInteger[] data = { 0, 1, 2, 3 };
FibonacciResultSet testSet = new FibonacciResultSet { Results = data };
BigInteger expected = 1;
BigInteger actual = testSet.GetResult(1);
Assert.AreEqual(expected, actual);
}
public void WriteResult(FibonacciResultSet resultSet)
{
BigInteger[] results = resultSet.GetAllResults();
for (int i = 0; i < results.Length; i++)
{
Console.Write("{0} ", results[i]);
}
Console.WriteLine();
}
public void WriteResult(FibonacciResultSet results)
{
using (Stream stream = File.Create(_fileName))
using (StreamWriter writer = new StreamWriter(stream))
{
for (int i = 0; i < results.GetAllResults().Length; i++)
{
writer.Write(string.Format("{0} ", results.GetAllResults()[i]));
}
}
}
private static XDocument ConstructXMLDoc(FibonacciResultSet results)
{
IEnumerable<BigInteger> enumList = results.GetAllResults();
XDocument doc = new XDocument(
new XElement("fiboutput",
enumList.Select(n => new XElement("result", n.ToString()))
)
);
return doc;
}
private static void HandleOutput(CliOptions options, FibonacciResultSet resultSet)
{
IFibonacciOutput outputMethod;
if (options.OutputFile == null)
{
outputMethod = new DirectFibonacciOutput();
}
else if (Path.GetExtension(options.OutputFile) == ".xml")
{
outputMethod = new XMLFibonacciOutput(options.OutputFile);
}
else
{
outputMethod = new PlainTextFibonacciOutput(options.OutputFile);
}
outputMethod.WriteResult(resultSet);
}
public void WriteResult(FibonacciResultSet results)
{
XDocument xmlDoc = ConstructXMLDoc(results);
xmlDoc.Save(_fileName);
}