private void Verify(LineBuffer lineBuffer, string textToAdd, string[] expectedOutput)
{
IEnumerable <string> result;
lineBuffer.ProcessText(textToAdd, out result);
string[] r = result.ToArray();
Assert.Equal <int>(expectedOutput.Length, r.Length);
for (int i = 0; i < expectedOutput.Length; i++)
{
Assert.Equal(expectedOutput[i], r[i]);
}
}