nclazz-mail-relay/src/test/java/de/nclazz/service/mailrelay/adapter/web/AccountFormValidationTest.java

package de.nclazz.service.mailrelay.adapter.web;

import org.hibernate.validator.HibernateValidator;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean;

import java.util.List;

import static org.assertj.core.api.Assertions.assertThat;

public class AccountFormValidationTest {

    private LocalValidatorFactoryBean localValidatorFactory;

    @BeforeEach
    public void setup() {
        localValidatorFactory = new LocalValidatorFactoryBean();
        localValidatorFactory.setProviderClass(HibernateValidator.class);
        localValidatorFactory.afterPropertiesSet();
    }

    @Test
    void nameAsEmptyStringShouldBeNotValid() {
        AccountForm form = new AccountForm("", List.of());

        assertThat(localValidatorFactory.validate(form))
                .isNotEmpty();
    }

    @Test
    void nameIsMissingShouldBeNotValid() {
        AccountForm form = new AccountForm(null, List.of());

        assertThat(localValidatorFactory.validate(form))
                .isNotEmpty();
    }

    @Test
    void nameWithSingleCharacterShouldBeValid() {
        AccountForm form = new AccountForm("a", List.of());

        assertThat(localValidatorFactory.validate(form))
                .hasSize(0);
    }

    @Test
    void nameContainingNonAlphaNumericCharsShouldBeNotValid() {
        AccountForm form = new AccountForm("a_.+a", List.of());

        assertThat(localValidatorFactory.validate(form))
                .hasSize(1);
    }

    @Test
    void nameStartingWithHyphenShouldBeNotValid() {
        AccountForm form = new AccountForm("-name", List.of());

        assertThat(localValidatorFactory.validate(form))
                .hasSize(1);
    }

    @Test
    void nameContainingWithHyphenShouldBeValid() {
        AccountForm form = new AccountForm("prefix-name", List.of());

        assertThat(localValidatorFactory.validate(form))
                .hasSize(0);
    }

    @Test
    void receiversWithEmailAddressesShouldBeValid() {
        AccountForm form = new AccountForm("legal-name", List.of("vip@company.com", "mail@example.com"));

        assertThat(localValidatorFactory.validate(form))
                .hasSize(0);
    }

    @Test
    void receiversWithInvalidEmailAddressesShouldBeVNotalid() {
        AccountForm form = new AccountForm("legal-name", List.of("vip @ company.com", "--mail@example.com"));

        assertThat(localValidatorFactory.validate(form))
                .hasSize(1);
    }

}