Unit testing

@ParameterizedTest
@CsvSource(textBlock = """
   1, false
   2, true
   3, true
   4, false
   """)
public void testPrimes(int primeCandidate, boolean expected) {
    Assertions.assertEquals(expected, Prime.isPrime(primeCandidate));
}

mvn test ─ de.hdm_stuttgart.mi.sd1.PrimeTest - 0.098 s
           ├─ ✔ testPrimes(int, boolean)[1] 1, false - 0.035 s
           ├─ ✔ testPrimes(int, boolean)[2] 2, true - 0.001 s
           ├─ ✔ testPrimes(int, boolean)[3] 3, true - 0.001 s
           └─ ✔ testPrimes(int, boolean)[4] 4, false - 0.001 s

@ParameterizedTest
@CsvFileSource(resources = "/primes.csv")
  public void testPrimesByFile 
    (int primeCandidate, boolean expected) {
     Assertions.assertEquals(
         expected
        ,Prime.isPrime(primeCandidate));
}

1, false
2, true
3, true
4, false

mvn test ─ de.hdm_stuttgart.mi.sd1.PrimeTest - 0.098 s
           ├─ ✔ testPrimesByFile(int, boolean)[1] 1, false - 0.031 s
           ├─ ✔ testPrimesByFile(int, boolean)[2] 2, true - 0.001 s
           ├─ ✔ testPrimesByFile(int, boolean)[3] 3, true - 0.001 s
           └─ ✔ testPrimesByFile(int, boolean)[4] 4, false - 0.001 s