com.stackify.metric.impl.MetricMonitorServiceTest.java Source code

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Here is the source code for com.stackify.metric.impl.MetricMonitorServiceTest.java

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/*
 * Copyright 2014 Stackify
 *
 * 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 com.stackify.metric.impl;

import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mockito;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.stackify.api.AppIdentity;
import com.stackify.api.common.ApiConfiguration;
import com.stackify.api.common.AppIdentityService;
import com.stackify.api.common.http.HttpClient;

/**
 * MetricMonitorServiceTest
 * @author Eric Martin
 */
@RunWith(PowerMockRunner.class)
@PrepareForTest({ MetricMonitorService.class, HttpClient.class })
public class MetricMonitorServiceTest {

    /**
     * testNoAppIdentity
     * @throws Exception 
     */
    @Test
    public void testNoAppIdentity() throws Exception {
        ApiConfiguration apiConfig = Mockito.mock(ApiConfiguration.class);
        ObjectMapper objectMapper = new ObjectMapper();
        AppIdentityService appIdentityService = Mockito.mock(AppIdentityService.class);
        Mockito.when(appIdentityService.getAppIdentity()).thenReturn(null);

        HttpClient httpClient = PowerMockito.mock(HttpClient.class);
        PowerMockito.whenNew(HttpClient.class).withAnyArguments().thenReturn(httpClient);
        PowerMockito.when(httpClient.post(Mockito.anyString(), (byte[]) Mockito.any())).thenReturn("");

        MetricMonitorService service = new MetricMonitorService(apiConfig, objectMapper, appIdentityService);

        MetricIdentity identity = new MetricIdentity("category", "name", MetricMonitorType.COUNTER);

        Integer id = service.getMonitorId(identity);

        Assert.assertNull(id);

        Mockito.verifyZeroInteractions(httpClient);
    }

    /**
     * testGetMonitorId
     * @throws Exception 
     */
    @Test
    public void testGetMonitorId() throws Exception {
        ApiConfiguration apiConfig = Mockito.mock(ApiConfiguration.class);
        ObjectMapper objectMapper = new ObjectMapper();
        AppIdentityService appIdentityService = Mockito.mock(AppIdentityService.class);
        Mockito.when(appIdentityService.getAppIdentity()).thenReturn(Mockito.mock(AppIdentity.class));

        HttpClient httpClient = PowerMockito.mock(HttpClient.class);
        PowerMockito.whenNew(HttpClient.class).withAnyArguments().thenReturn(httpClient);
        PowerMockito.when(httpClient.post(Mockito.anyString(), (byte[]) Mockito.any()))
                .thenReturn("{\"MonitorID\": \"14\"}").thenReturn("");

        MetricMonitorService service = new MetricMonitorService(apiConfig, objectMapper, appIdentityService);

        MetricIdentity identity = new MetricIdentity("category", "name", MetricMonitorType.COUNTER);

        Integer id = service.getMonitorId(identity);

        Assert.assertNotNull(id);
        Assert.assertEquals(14, id.intValue());

        Integer cachedId = service.getMonitorId(identity);

        Assert.assertNotNull(cachedId);
        Assert.assertEquals(14, cachedId.intValue());

        Integer absentId = service.getMonitorId(new MetricIdentity("does-not", "exist", MetricMonitorType.COUNTER));

        Assert.assertNull(absentId);
    }
}