/// <summary>
/// Ensures that bad input results in an exception.
/// </summary>
/// <param name="expression">The bad expression to test.</param>
private void TestForSyntaxError(string expression)
{
// Need to use this instead of Assert.Throws since Throws expects a specific type,
// we don't care about the type of exception that is thrown.
try
{
MathBotCalculator.Calculate(expression);
Assert.Fail("Did not get expected exception for expression " + expression);
}
// We don't care what exception occurrs, as long as one happens.
catch (Exception)
{
Assert.Pass();
}
}
// -------- Test Helpers --------
/// <summary>
/// Tests that the given expression results in the expected answer.
/// </summary>
/// <param name="expression">The expression to feed our calculator.</param>
/// <param name="expectedAnswer">The expected answer we expect.</param>
private void TestForCorrectAnswer(string expression, string expectedAnswer)
{
string answer = MathBotCalculator.Calculate(expression);
Assert.AreEqual(expectedAnswer, answer);
}
