import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

class PasswordValidatorTest {

    @Test
    void validate() {
        PasswordValidator passwordValidator = new PasswordValidator();
        assertFalse(passwordValidator.validate(""));

        // test minimum password length
        passwordValidator.setMinLength(6);
        passwordValidator.setRequireUppercase(false);
        passwordValidator.setRequireLowercase(false);
        passwordValidator.setRequireDigit(false);
        assertFalse(passwordValidator.validate("abcde"));
        assertTrue(passwordValidator.validate("abcdef"));
        assertTrue(passwordValidator.validate("abcdefg"));

        // test uppercase requirement
        passwordValidator.setRequireUppercase(true);
        passwordValidator.setRequireLowercase(false);
        passwordValidator.setRequireDigit(false);
        assertFalse(passwordValidator.validate("abcdef"));
        assertTrue(passwordValidator.validate("abCdef"));
        assertTrue(passwordValidator.validate("ABCDEF"));

        // test lowercase requirement
        passwordValidator.setRequireUppercase(true);
        passwordValidator.setRequireLowercase(true);
        passwordValidator.setRequireDigit(false);
        assertFalse(passwordValidator.validate("abcdef"));
        assertTrue(passwordValidator.validate("abCdef"));
        assertFalse(passwordValidator.validate("ABCDEF"));

        // test digits requirement
        passwordValidator.setRequireUppercase(true);
        passwordValidator.setRequireLowercase(true);
        passwordValidator.setRequireDigit(true);
        assertFalse(passwordValidator.validate("8"));
        assertFalse(passwordValidator.validate("12345678"));
        assertFalse(passwordValidator.validate("abcdef"));
        assertFalse(passwordValidator.validate("abcdef8"));
        assertFalse(passwordValidator.validate("abCdef"));
        assertFalse(passwordValidator.validate("ABCDEF"));
        assertFalse(passwordValidator.validate("ABCDEF8"));
        assertTrue(passwordValidator.validate("abCDE8F"));
    }

    @Test
    void getSHA1Hash() {
        assertEquals("356A192B7913B04C54574D18C28D46E6395428AB".toLowerCase(), PasswordValidator.getSHA1Hash("1"));
        assertEquals("A233F0E898ED0661D6D47ED0958F16B52E537231".toLowerCase(), PasswordValidator.getSHA1Hash("asdf12"));
        assertNull(PasswordValidator.getSHA1Hash(""));
    }
}