public void TestBasicOperators()
{
string expected;
IEnumerable <InputElement> output = new List <InputElement>();
ip.Clear();
ip.GetseparatedPlainText("1", out output);
ip.GetseparatedPlainText("+", out output);
ip.GetseparatedPlainText("1", out output);
ip.GetseparatedPlainText("-", out output);
ip.GetseparatedPlainText("1", out output);
expected = "1 + 1 - 1";
Assert.AreEqual <String>(expected, String.Join(" ", output));
ip.Clear();
ip.GetseparatedPlainText("1", out output);
ip.GetseparatedPlainText(".", out output);
ip.GetseparatedPlainText("1", out output);
ip.GetseparatedPlainText("+", out output);
ip.GetseparatedPlainText("1", out output);
expected = "1 . 1 + 1";
Assert.AreEqual <String>(expected, String.Join(" ", output));
ip.Clear();
ip.GetseparatedPlainText("1", out output);
ip.GetseparatedPlainText(".", out output);
ip.GetseparatedPlainText("1", out output);
ip.GetseparatedPlainText(".", out output);
ip.GetseparatedPlainText("1", out output);
ip.GetseparatedPlainText("+", out output);
ip.GetseparatedPlainText("1", out output);
expected = "1 . 11 + 1";
Assert.AreEqual <String>(expected, String.Join(" ", output));
ip.Clear();
ip.GetseparatedPlainText("1", out output);
ip.GetseparatedPlainText(".", out output);
ip.GetseparatedPlainText("+", out output);
ip.GetseparatedPlainText("1", out output);
expected = "1 + 1";
Assert.AreEqual <String>(expected, String.Join(" ", output));
}