AlertManagerImplTest.java

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// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// the License.  You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
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package com.cloud.alert;

import com.cloud.alert.dao.AlertDao;
import com.cloud.dc.ClusterVO;
import com.cloud.dc.DataCenterVO;
import com.cloud.dc.HostPodVO;
import com.cloud.dc.dao.ClusterDao;
import com.cloud.dc.dao.DataCenterDao;
import com.cloud.dc.dao.HostPodDao;
import org.apache.cloudstack.utils.mailing.SMTPMailSender;
import org.apache.logging.log4j.Logger;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.Spy;
import org.mockito.junit.MockitoJUnitRunner;

import javax.mail.MessagingException;
import java.io.UnsupportedEncodingException;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.verify;

@RunWith(MockitoJUnitRunner.class)
public class AlertManagerImplTest {

    @Spy
    @InjectMocks
    AlertManagerImpl alertManagerImplMock;

    @Mock
    AlertDao _alertDao;

    @Mock
    private DataCenterDao _dcDao;

    @Mock
    private HostPodDao _podDao;

    @Mock
    private ClusterDao _clusterDao;

    @Mock
    AlertVO alertVOMock;

    @Mock
    Logger loggerMock;

    @Mock
    SMTPMailSender mailSenderMock;

    private final String[] recipients = new String[]{"test@test.com"};
    private final String senderAddress = "sender@test.com";

    @Before
    public void setUp() {
        alertManagerImplMock.recipients = recipients;
        alertManagerImplMock.senderAddress = senderAddress;
    }

    private void sendMessage() {
        try {
            DataCenterVO zone = Mockito.mock(DataCenterVO.class);
            Mockito.when(zone.getId()).thenReturn(0L);
            Mockito.when(_dcDao.findById(0L)).thenReturn(zone);
            HostPodVO pod = Mockito.mock(HostPodVO.class);
            Mockito.when(pod.getId()).thenReturn(1L);
            Mockito.when(_podDao.findById(1L)).thenReturn(pod);
            ClusterVO cluster = Mockito.mock(ClusterVO.class);
            Mockito.when(cluster.getId()).thenReturn(1L);
            Mockito.when(_clusterDao.findById(1L)).thenReturn(cluster);

            alertManagerImplMock.sendAlert(AlertManager.AlertType.ALERT_TYPE_CPU, 0, 1L, 1L, "", "");
        } catch (UnsupportedEncodingException | MessagingException e) {
            Assert.fail();
        }
    }

    @Test
    public void sendAlertTestSendMail() {
        Mockito.doReturn(null).when(_alertDao).getLastAlert(Mockito.anyShort(), Mockito.anyLong(),
                Mockito.anyLong(), Mockito.anyLong());
        Mockito.doReturn(null).when(_alertDao).persist(any());
        alertManagerImplMock.recipients = new String[]{""};

        sendMessage();

        Mockito.verify(alertManagerImplMock).sendMessage(any());
    }

    @Test
    public void sendAlertTestDebugLogging() {
        Mockito.doReturn(0).when(alertVOMock).getSentCount();
        Mockito.doReturn(alertVOMock).when(_alertDao).getLastAlert(Mockito.anyShort(), Mockito.anyLong(),
                Mockito.anyLong(), Mockito.anyLong());

        sendMessage();

        Mockito.verify(alertManagerImplMock.logger).debug(Mockito.anyString());
        Mockito.verify(alertManagerImplMock, Mockito.never()).sendMessage(any());
    }

    @Test
    public void sendAlertTestWarnLogging() {
        Mockito.doReturn(null).when(_alertDao).getLastAlert(Mockito.anyShort(), Mockito.anyLong(),
                Mockito.anyLong(), Mockito.anyLong());
        Mockito.doReturn(null).when(_alertDao).persist(Mockito.any());
        alertManagerImplMock.recipients = null;

        sendMessage();

        Mockito.verify(alertManagerImplMock.logger, Mockito.times(2)).warn(Mockito.anyString());
        Mockito.verify(alertManagerImplMock, Mockito.never()).sendMessage(any());
    }

    @Test
    public void testSendAlertWithNullParameters() throws MessagingException, UnsupportedEncodingException {
        // Given
        String subject = "Test Subject";
        String content = "Test Content";
        AlertManager.AlertType alertType = AlertManager.AlertType.ALERT_TYPE_MEMORY;

        // When
        alertManagerImplMock.sendAlert(alertType, null, null, null, subject, content);

        // Then
        ArgumentCaptor<AlertVO> alertCaptor = ArgumentCaptor.forClass(AlertVO.class);
        verify(_alertDao).persist(alertCaptor.capture());

        AlertVO capturedAlert = alertCaptor.getValue();
        assertNotNull("Captured alert should not be null", capturedAlert);
        assertEquals(0L, capturedAlert.getDataCenterId());
        assertNull(capturedAlert.getPodId());
        assertNull(capturedAlert.getClusterId());
        assertEquals(subject, capturedAlert.getSubject());
        assertEquals(content, capturedAlert.getContent());
        assertEquals(alertType.getType(), capturedAlert.getType());
    }

    @Test(expected = NullPointerException.class)
    public void testSendAlertWithNullAlertType() throws MessagingException, UnsupportedEncodingException {
        // When
        alertManagerImplMock.sendAlert(null, 0, 1L, 1L, "subject", "content");
    }
}