public static void Main(string[] args)
{
var triangleClassifier = new TriangleClassifier();
var triangleSideLengths = triangleClassifier.ParseAndValidateCommandLineArguments(args);
if (triangleSideLengths != null)
{
triangleClassifier.Classify(triangleSideLengths);
}
}
public void ParseAndValidateCommandLineArguments_NoArguments_ExpectUsageShown()
{
// Arrange
var args = new string[0];
// Act
var triangleSideLengths = _triangleClassifier.ParseAndValidateCommandLineArguments(args);
// Assert
Assert.IsNull(triangleSideLengths, "No TriangleSideLengths object should have been returned");
Assert.IsTrue(_testOutputter.WriteLineWasCalled, "Outputter.WriteLine should have been called.");
Assert.IsTrue(_testOutputter.WriteLineTestValue.IndexOf("Usage", StringComparison.OrdinalIgnoreCase) >= 0, "Outputter.WriteLine should have been called with the usage text.");
}