Multiplying the quality of your Unit Tests (Part2) with PBT - JUnit5 Password Validator Test

JUnit5PasswordValidatorTest.kt

val passwordValidator = PasswordValidator(
     ContainsUpperCaseLetterValidator(),
     MinCharsValidator(6),
     ContainsDigitValidator(),
     ContainsLowerCaseLetterValidator(),
     NoBlanksValidator()
 )

@DisplayName("PasswordValidator for invalid passwords")
@ParameterizedTest(name = "When password is \"{0}\", the error contains \"{1}\"")
@CsvSource(
    "123456, no upper case letters",
    "ABCDEF, no digits",
    "HELLO, no lower case letters",
    "1234A, contains less than 6 chars",
    "12 3 456, contains blanks"
)
fun testPasswordValidatorRight(password: String?, expectedError: String?) {
    val actualError = passwordValidator.validate(password)
    assertThat(actualError).contains(expectedError)
}