public void TestGetFileSize_ShouldReturnFileAttribute()
{
var classUnderTest = new FileAttributeRequestHandler(new FileAttributeRequestParser(), new FileDetails());
var fileAttribute = classUnderTest.GetFileAttribute(_attributeRequest, _filePath);
Assert.That(!string.IsNullOrEmpty(fileAttribute), "File attribute is expected to be non-null value.");
if (_attribute == FileAttribute.Size)
{
int fileSize;
if (!int.TryParse(fileAttribute, out fileSize))
{
Assert.Fail("File size must be an integer.");
}
Assert.That(fileSize > 0, "File size much be greater than zero.");
}
else if (_attribute == FileAttribute.Version)
{
var versionStringArray = fileAttribute.Split('.');
Assert.That(versionStringArray != null && versionStringArray.Length >= 3, "Invalid file version.");
foreach (var versionComponent in versionStringArray)
{
int versionNumber;
Assert.That(int.TryParse(versionComponent, out versionNumber), "File version parts must be numeric.");
}
}
}
public static void Main(string[] args)
{
IFileAttributeRequestHandler fileAttributeRequestHandler =
new FileAttributeRequestHandler(new FileAttributeRequestParser(), new FileDetails());
var attribute = fileAttributeRequestHandler.GetFileAttribute(args[0], args[1]);
Console.WriteLine("File Attribute : {0}", attribute);
Console.WriteLine("Press any key to exit...");
Console.ReadLine();
}
public void TestGetFileSize_NullFilePath_ShouldThrowArgumentNullException()
{
var classUnderTest = new FileAttributeRequestHandler(new FileAttributeRequestParser(), new FileDetails());
Assert.Throws <ArgumentNullException>(() => classUnderTest.GetFileAttribute("-s", null));
}
public void TestGetFileSize_ShouldThrowException()
{
var classUnderTest = new FileAttributeRequestHandler(new FileAttributeRequestParser(), new FileDetails());
Assert.Throws <Exception>(() => classUnderTest.GetFileAttribute(_attributeRequest, _filePath));
}