AgentStatCpuLoadBoTest.java

/*
 * Copyright 2014 NAVER Corp.
 *
 * 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.navercorp.pinpoint.common.server.bo;

import static org.junit.Assert.*;

import org.junit.Test;

import com.navercorp.pinpoint.common.server.bo.AgentStatCpuLoadBo;

/**
 * @author hyungil.jeong
 */
public class AgentStatCpuLoadBoTest {

    // for comparing CPU Usage up to 2 decimal places
    private static final double DELTA = 1e-4;

    @Test
    public void testByteArrayConversion() {
        // Given
        final AgentStatCpuLoadBo testBo = createTestBo(0.22871734201908112D, 0.23790152370929718D);
        // When
        final byte[] serializedBo = testBo.writeValue();
        final AgentStatCpuLoadBo deserializedBo = new AgentStatCpuLoadBo.Builder(serializedBo).build();
        // Then
        assertEquals(testBo.getAgentId(), deserializedBo.getAgentId());
        assertEquals(testBo.getStartTimestamp(), deserializedBo.getStartTimestamp());
        assertEquals(testBo.getTimestamp(), deserializedBo.getTimestamp());
        assertEquals(testBo.getJvmCpuLoad(), deserializedBo.getJvmCpuLoad(), DELTA);
        assertEquals(testBo.getSystemCpuLoad(), deserializedBo.getSystemCpuLoad(), DELTA);
    }

    @Test
    public void testByteArrayConversionEdges() {
        // Given
        final AgentStatCpuLoadBo testBo = createTestBo(Double.MIN_VALUE, Double.MAX_VALUE);
        // When
        final byte[] serializedBo = testBo.writeValue();
        final AgentStatCpuLoadBo deserializedBo = new AgentStatCpuLoadBo.Builder(serializedBo).build();
        // Then
        assertEquals(testBo.getAgentId(), deserializedBo.getAgentId());
        assertEquals(testBo.getStartTimestamp(), deserializedBo.getStartTimestamp());
        assertEquals(testBo.getTimestamp(), deserializedBo.getTimestamp());
        assertEquals(testBo.getJvmCpuLoad(), deserializedBo.getJvmCpuLoad(), DELTA);
        assertEquals(testBo.getSystemCpuLoad(), deserializedBo.getSystemCpuLoad(), DELTA);
    }

    @Test
    public void testByteArrayConversionNanValues() {
        // Given
        final AgentStatCpuLoadBo testBo = createTestBo(Double.NaN, Double.NaN);
        // When
        final byte[] serializedBo = testBo.writeValue();
        final AgentStatCpuLoadBo deserializedBo = new AgentStatCpuLoadBo.Builder(serializedBo).build();
        // Then
        assertEquals(testBo.getAgentId(), deserializedBo.getAgentId());
        assertEquals(testBo.getStartTimestamp(), deserializedBo.getStartTimestamp());
        assertEquals(testBo.getTimestamp(), deserializedBo.getTimestamp());
        assertEquals(testBo.getJvmCpuLoad(), deserializedBo.getJvmCpuLoad(), DELTA);
        assertEquals(testBo.getSystemCpuLoad(), deserializedBo.getSystemCpuLoad(), DELTA);
    }

    @Test
    public void testByteArrayConversionInfiniteValues() {
        // Given
        final AgentStatCpuLoadBo testBo = createTestBo(Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY);
        // When
        final byte[] serializedBo = testBo.writeValue();
        final AgentStatCpuLoadBo deserializedBo = new AgentStatCpuLoadBo.Builder(serializedBo).build();
        // Then
        assertEquals(testBo.getAgentId(), deserializedBo.getAgentId());
        assertEquals(testBo.getStartTimestamp(), deserializedBo.getStartTimestamp());
        assertEquals(testBo.getTimestamp(), deserializedBo.getTimestamp());
        assertEquals(testBo.getJvmCpuLoad(), deserializedBo.getJvmCpuLoad(), DELTA);
        assertEquals(testBo.getSystemCpuLoad(), deserializedBo.getSystemCpuLoad(), DELTA);
    }

    private AgentStatCpuLoadBo createTestBo(double jvmCpuLoad, double systemCpuLoad) {
        final AgentStatCpuLoadBo.Builder builder = new AgentStatCpuLoadBo.Builder("agentId", 0L, 0L);
        builder.jvmCpuLoad(jvmCpuLoad);
        builder.systemCpuLoad(systemCpuLoad);
        return builder.build();
    }

}