public void CheckKnownNonPrimeNumbers()
{
foreach (int num in _testNumbers.NotPrimes)
{
Assert.IsFalse(CheckForPrime.IsNumberPrime(num), message: $"{num} was returned as a prime number");
}
}
public void CheckKnownPrimeNumbers()
{
// this will check a list of known prime numbers
foreach (int num in _testNumbers.KnownPrimes)
{
Assert.IsTrue(CheckForPrime.IsNumberPrime(num), message: $"{num} was returned as not a prime number");
}
}
public void CheckForExceptionOnIncorrectInput()
{
// This test is to check to make sure sure method fails if we pass a letter to it
// Note: merely enforcing current design, an override may give a false failure here
try{
CheckForPrime.IsNumberPrime(Convert.ToInt32("A"));
Assert.Fail("Exception was not thrown");
}
catch (FormatException fe) {
Assert.AreEqual("Input string was not in a correct format.", fe.Message);
}
catch (Exception ex) {
// generic exception
Assert.Fail("Unexpected Exception, {0} was caught instead", ex.GetType());
}
}