public void TestIsFileCompressable()
{
var testMainWindowPresenter = new MainWindowPresenter();
string check = "Tesssttt.jpg";
bool expected = true;
Assert.AreEqual(expected, testMainWindowPresenter.IsFileCompressable(check));
check = ".jpg";
expected = true;
Assert.AreEqual(expected, testMainWindowPresenter.IsFileCompressable(check));
check = ".sys";
expected = false;
Assert.AreEqual(expected, testMainWindowPresenter.IsFileCompressable(check));
check = "someUnknownFile";
expected = false;
Assert.AreEqual(expected, testMainWindowPresenter.IsFileCompressable(check));
check = "";
expected = false;
Assert.AreEqual(expected, testMainWindowPresenter.IsFileCompressable(check));
}