public void GetAllFileNamesWhenAreFiles()
{
MockDirectory
.Setup(x => x.GetFiles("Test", "Test"))
.Returns(new List <string>
{
"Test1",
"Test\\Test2",
"Test\\Test3.Test"
}.ToArray());
var results = FileStreamer.GetAllFileNames("Test", "Test");
Assert.IsNotNull(results);
Assert.IsNotEmpty(results);
Assert.AreEqual(3, results.Count());
Assert.AreEqual("Test1", results[0]);
Assert.AreEqual("Test2", results[1]);
Assert.AreEqual("Test3", results[2]);
}