public string[] PopulateListBox()
{
//populate the listbox with images from chosen folder
var files = fm.getFileNames();
return(files);
}
[TestMethod] // control the "get files" method
public void getFiles()
{
String[] results = null;
// invalid folder
_filenameManipulation.setFolder("invalid folder");
results = _filenameManipulation.getFileNames();
Assert.AreEqual(null, results);
// valid folder
_filenameManipulation.setFolder(_validFolder);
results = _filenameManipulation.getFileNames();
Assert.AreNotEqual(null, results);
Assert.AreEqual(3, results.Length);
String[] expected = { "a.jpg", "b.jpg", "c.jpg" };
for (int i = 0, j = results.Length; i < j; i++)
{
Assert.AreEqual(expected[i], results[i]);
}
}
