de.codecentric.boot.admin.registry.StatusUpdaterTest.java Source code

Introduction

Here is the source code for de.codecentric.boot.admin.registry.StatusUpdaterTest.java

Source

/*
 * Copyright 2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package de.codecentric.boot.admin.registry;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.isA;
import static org.junit.Assert.assertThat;
import static org.mockito.Matchers.argThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.util.Collections;
import java.util.Map;

import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.ResourceAccessException;
import org.springframework.web.client.RestTemplate;

import de.codecentric.boot.admin.event.ClientApplicationStatusChangedEvent;
import de.codecentric.boot.admin.model.Application;
import de.codecentric.boot.admin.model.StatusInfo;
import de.codecentric.boot.admin.registry.store.SimpleApplicationStore;

public class StatusUpdaterTest {

    private StatusUpdater updater;
    private SimpleApplicationStore store;
    private RestTemplate template;
    private ApplicationEventPublisher publisher;

    @Before
    public void setup() {
        store = new SimpleApplicationStore();
        template = mock(RestTemplate.class);
        updater = new StatusUpdater(template, store);
        publisher = mock(ApplicationEventPublisher.class);
        updater.setApplicationEventPublisher(publisher);
    }

    @Test
    @SuppressWarnings("rawtypes")
    public void test_update_statusChanged() {
        when(template.getForEntity("health", Map.class))
                .thenReturn(ResponseEntity.ok().body((Map) Collections.singletonMap("status", "UP")));

        updater.updateStatus(Application.create("foo").withId("id").withHealthUrl("health").build());

        Application app = store.find("id");

        assertThat(app.getStatusInfo().getStatus(), is("UP"));
        verify(publisher).publishEvent(argThat(isA(ClientApplicationStatusChangedEvent.class)));
    }

    @Test
    @SuppressWarnings("rawtypes")
    public void test_update_statusUnchanged() {
        when(template.getForEntity("health", Map.class))
                .thenReturn(ResponseEntity.ok((Map) Collections.singletonMap("status", "UNKNOWN")));

        updater.updateStatus(Application.create("foo").withId("id").withHealthUrl("health").build());

        verify(publisher, never()).publishEvent(argThat(isA(ClientApplicationStatusChangedEvent.class)));
    }

    @Test
    @SuppressWarnings("rawtypes")
    public void test_update_noBody() {
        // HTTP 200 - UP
        when(template.getForEntity("health", Map.class)).thenReturn(ResponseEntity.ok((Map) null));

        updater.updateStatus(Application.create("foo").withId("id").withHealthUrl("health").build());

        assertThat(store.find("id").getStatusInfo().getStatus(), is("UP"));

        // HTTP != 200 - DOWN
        when(template.getForEntity("health", Map.class)).thenReturn(ResponseEntity.status(503).body((Map) null));

        updater.updateStatus(Application.create("foo").withId("id").withHealthUrl("health").build());

        assertThat(store.find("id").getStatusInfo().getStatus(), is("DOWN"));
    }

    @Test
    public void test_update_offline() {
        when(template.getForEntity("health", Map.class)).thenThrow(new ResourceAccessException("error"));

        updater.updateStatus(Application.create("foo").withId("id").withHealthUrl("health").build());

        assertThat(store.find("id").getStatusInfo().getStatus(), is("OFFLINE"));
    }

    @Test
    @SuppressWarnings("rawtypes")
    public void test_updateStatusForApplications() {
        Application app1 = Application.create("foo").withId("id-1").withHealthUrl("health-1").build();
        store.save(app1);

        Application app2 = Application.create("foo").withId("id-2").withHealthUrl("health-2")
                .withStatusInfo(StatusInfo.valueOf("UP", 0L)).build();
        store.save(app2);

        when(template.getForEntity("health-2", Map.class)).thenReturn(ResponseEntity.ok((Map) null));

        updater.updateStatusForAllApplications();

        verify(template, never()).getForEntity("health-1", Map.class);
    }

}