server/mailet/mailets/src/test/java/org/apache/james/transport/matchers/IsRemoteDeliveryPermanentErrorTest.java

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package org.apache.james.transport.matchers;

import static org.apache.james.transport.mailets.remote.delivery.Bouncer.IS_DELIVERY_PERMANENT_ERROR;
import static org.apache.mailet.base.MailAddressFixture.RECIPIENT1;
import static org.assertj.core.api.Assertions.assertThat;

import java.util.Collection;

import javax.mail.MessagingException;

import org.apache.james.core.MailAddress;
import org.apache.mailet.Attribute;
import org.apache.mailet.AttributeValue;
import org.apache.mailet.Mail;
import org.apache.mailet.base.test.FakeMail;
import org.apache.mailet.base.test.FakeMatcherConfig;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

class IsRemoteDeliveryPermanentErrorTest {

    private IsRemoteDeliveryPermanentError testee;

    private Mail createMail() throws MessagingException {
        return FakeMail.builder()
            .name("test-message")
            .recipient(RECIPIENT1)
            .build();
    }

    @BeforeEach
    void setUp() throws Exception {
        testee = new IsRemoteDeliveryPermanentError();

        FakeMatcherConfig matcherConfig = FakeMatcherConfig.builder()
            .matcherName("IsRemoteDeliveryPermanentError")
            .build();

        testee.init(matcherConfig);
    }

    @Test
    void shouldMatchWhenAttributeIsPresent() throws Exception {
        Mail mail = createMail();
        mail.setAttribute(new Attribute(IS_DELIVERY_PERMANENT_ERROR, AttributeValue.of(true)));

        Collection<MailAddress> actual = testee.match(mail);

        assertThat(actual).containsOnly(RECIPIENT1);
    }

    @Test
    void shouldNotMatchWhenAttributeIsMissing() throws Exception {
        Mail mail = createMail();

        Collection<MailAddress> actual = testee.match(mail);

        assertThat(actual).isEmpty();
    }

    @Test
    void shouldNotMatchWhenAttributeIsFalse() throws Exception {
        Mail mail = createMail();
        mail.setAttribute(new Attribute(IS_DELIVERY_PERMANENT_ERROR, AttributeValue.of(false)));

        Collection<MailAddress> actual = testee.match(mail);

        assertThat(actual).isEmpty();
    }

    @ParameterizedTest
    @ValueSource(strings = {"abc", "1"})
    void shouldNotMatchWhenAttributeIsInvalid(String value) throws Exception {
        Mail mail = createMail();
        mail.setAttribute(new Attribute(IS_DELIVERY_PERMANENT_ERROR, AttributeValue.of(value)));

        Collection<MailAddress> actual = testee.match(mail);

        assertThat(actual).isEmpty();
    }
}