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/*
* lemonad - Some functional sweetness for Java
* Copyright (C) 2019 Pacien TRAN-GIRARD
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package org.pacien.lemonad.validation;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.pacien.lemonad.attempt.Attempt;
import java.util.List;
import java.util.stream.Stream;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
/**
* @author pacien
*/
class ValidationTest {
@Test void testValidResult() {
var subject = "subject";
var validation = Validation.valid(subject);
assertTrue(validation.getErrors().isEmpty());
assertTrue(validation.isValid());
assertFalse(validation.isInvalid());
validation.ifValid(innerSubject -> assertEquals(subject, innerSubject));
validation.ifInvalid((__, ___) -> fail());
assertEquals(Attempt.success(subject), validation.toAttempt());
}
@Test void testInvalidResult() {
var subject = "subject";
var errors = List.of(0, 1);
var validation = Validation.invalid(subject, 0, 1);
assertEquals(errors, validation.getErrors());
assertFalse(validation.isValid());
assertTrue(validation.isInvalid());
validation.ifValid(Assertions::fail);
validation.ifInvalid((innerSubject, innerErrors) -> {
assertEquals(subject, innerSubject);
assertEquals(errors, innerErrors);
});
assertEquals(Attempt.failure(errors), validation.toAttempt());
}
@Test void testFlatMap() {
Validation.valid("subject")
.ifInvalid((__, ___) -> fail())
.flatMap(res -> Validation.invalid(res.getSubject(), 0))
.ifValid(innerSubject -> fail());
}
@Test void testMerge() {
var subject = "subject";
assertEquals(List.of(0, 1, 2, 3), Validation.merge(subject, Stream.of(
Validation.valid(subject),
Validation.invalid(subject, 0, 1),
Validation.invalid(subject, 2, 3))
).getErrors());
}
}
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