| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.servicecomb.metrics.core.meter.os; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.RuntimeMXBean; |
| import java.nio.charset.Charset; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.servicecomb.metrics.core.meter.os.cpu.CpuUtils; |
| import org.junit.Test; |
| |
| import com.google.common.io.CharSource; |
| import com.google.common.io.Files; |
| import com.netflix.spectator.api.Id; |
| import com.netflix.spectator.api.Measurement; |
| |
| import mockit.Expectations; |
| import mockit.Mock; |
| import mockit.MockUp; |
| import mockit.Mocked; |
| import org.junit.jupiter.api.Assertions; |
| |
| public class TestCpuMeter { |
| |
| @Test |
| public void testRefreshCpuSuccess(@Mocked Id id, @Mocked Runtime runtime, @Mocked RuntimeMXBean mxBean, |
| @Mocked CharSource charSource) throws IOException { |
| new MockUp<Files>() { |
| @Mock |
| public CharSource asCharSource(File file, Charset encoding) { |
| return charSource; |
| } |
| }; |
| new MockUp<ManagementFactory>() { |
| @Mock |
| RuntimeMXBean getRuntimeMXBean() { |
| return mxBean; |
| } |
| }; |
| new MockUp<CpuUtils>() { |
| @Mock |
| public int calcHertz() { |
| return 4; |
| } |
| }; |
| new MockUp<Runtime>() { |
| @Mock |
| public Runtime getRuntime() { |
| return runtime; |
| } |
| }; |
| new Expectations() { |
| { |
| runtime.availableProcessors(); |
| result = 2; |
| charSource.readFirstLine(); |
| result = "1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1"; |
| } |
| }; |
| CpuMeter cpuMeter = new CpuMeter(id); |
| Assertions.assertEquals(0.0, cpuMeter.getAllCpuUsage().getUsage(), 0.0); |
| Assertions.assertEquals(0.0, cpuMeter.getProcessCpuUsage().getUsage(), 0.0); |
| |
| new Expectations() { |
| { |
| charSource.readFirstLine(); |
| result = "2 2 2 2 2 2 2 2 2 0 0 2 2 2 2 2 2 2 2 2 2"; |
| } |
| }; |
| cpuMeter.update(); |
| |
| Assertions.assertEquals(0.875, cpuMeter.getAllCpuUsage().getUsage(), 0.0); |
| Assertions.assertEquals(0.5, cpuMeter.getProcessCpuUsage().getUsage(), 0.0); |
| } |
| |
| @Test |
| public void testRefreshError(@Mocked Id id, @Mocked Runtime runtime, @Mocked RuntimeMXBean mxBean, |
| @Mocked CharSource charSource) throws IOException { |
| |
| new MockUp<Files>() { |
| @Mock |
| public CharSource asCharSource(File file, Charset encoding) { |
| return charSource; |
| } |
| }; |
| new MockUp<CpuUtils>() { |
| @Mock |
| public int calcHertz() { |
| return 4; |
| } |
| }; |
| new MockUp<ManagementFactory>() { |
| @Mock |
| RuntimeMXBean getRuntimeMXBean() { |
| return mxBean; |
| } |
| }; |
| new MockUp<Runtime>() { |
| @Mock |
| public Runtime getRuntime() { |
| return runtime; |
| } |
| }; |
| new Expectations() { |
| { |
| runtime.availableProcessors(); |
| result = 2; |
| charSource.readFirstLine(); |
| result = "1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1"; |
| } |
| }; |
| CpuMeter cpuMeter = new CpuMeter(id); |
| Assertions.assertEquals(0.0, cpuMeter.getAllCpuUsage().getUsage(), 0.0); |
| Assertions.assertEquals(0.0, cpuMeter.getProcessCpuUsage().getUsage(), 0.0); |
| new Expectations() { |
| { |
| charSource.readFirstLine(); |
| result = "1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1"; |
| } |
| }; |
| cpuMeter.update(); |
| |
| Assertions.assertEquals(0.0, cpuMeter.getAllCpuUsage().getUsage(), 0.0); |
| Assertions.assertEquals(0.0, cpuMeter.getProcessCpuUsage().getUsage(), 0.0); |
| } |
| |
| @Test |
| public void testCalcMeasurements(@Mocked Id id, @Mocked Runtime runtime, @Mocked RuntimeMXBean mxBean, |
| @Mocked CharSource charSource) throws IOException { |
| List<Measurement> measurements = new ArrayList<>(); |
| |
| new MockUp<Files>() { |
| @Mock |
| public CharSource asCharSource(File file, Charset encoding) { |
| return charSource; |
| } |
| }; |
| new MockUp<CpuUtils>() { |
| @Mock |
| public int calcHertz() { |
| return 4; |
| } |
| }; |
| new MockUp<ManagementFactory>() { |
| @Mock |
| RuntimeMXBean getRuntimeMXBean() { |
| return mxBean; |
| } |
| }; |
| new MockUp<Runtime>() { |
| @Mock |
| public Runtime getRuntime() { |
| return runtime; |
| } |
| }; |
| new Expectations() { |
| { |
| runtime.availableProcessors(); |
| result = 2; |
| charSource.readFirstLine(); |
| result = "1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1"; |
| } |
| }; |
| CpuMeter cpuMeter = new CpuMeter(id); |
| |
| new Expectations() { |
| { |
| charSource.readFirstLine(); |
| result = "2 2 2 2 2 2 2 2 2 0 0 2 2 2 2 2 2 2 2 2 2"; |
| } |
| }; |
| cpuMeter.calcMeasurements(measurements, 0); |
| Assertions.assertEquals(2, measurements.size()); |
| Measurement measurement = measurements.get(0); |
| Assertions.assertEquals(0, measurement.timestamp()); |
| Assertions.assertEquals(0.875, measurement.value(), 0.0); |
| measurement = measurements.get(1); |
| Assertions.assertEquals(0, measurement.timestamp()); |
| Assertions.assertEquals(0.5, measurement.value(), 0.0); |
| } |
| } |