| /* |
| * 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.geode.internal.cache; |
| |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import java.io.File; |
| |
| import org.junit.Test; |
| |
| import org.apache.geode.internal.cache.DiskStoreMonitor.DiskState; |
| import org.apache.geode.internal.cache.DiskStoreMonitor.DiskUsage; |
| |
| public class DiskUsageTest { |
| |
| @Test |
| public void defaultStateIsNormal() { |
| DiskUsage diskUsage = new TestableDiskUsage(); |
| assertThat(diskUsage.getState()).isEqualTo(DiskState.NORMAL); |
| } |
| |
| @Test |
| public void updateReturnsCurrentStateIfThresholdsDisabled() { |
| DiskUsage diskUsage = new TestableDiskUsage(); |
| assertThat(diskUsage.update(0.0f, 0.0f)).isEqualTo(DiskState.NORMAL); |
| } |
| |
| @Test |
| public void updateReturnsCurrentStateIfDirectoryDoesNotExist() { |
| File dir = mock(File.class); |
| DiskUsage diskUsage = new TestableDiskUsage(dir); |
| assertThat(diskUsage.update(1.0f, 0.0f)).isEqualTo(DiskState.NORMAL); |
| verify(dir, times(1)).exists(); |
| } |
| |
| @Test |
| public void updateSendsTotalToRecordsStats() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| final long expectedTotal = 123; |
| when(dir.getTotalSpace()).thenReturn(expectedTotal); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir); |
| diskUsage.update(0.0f, 1.0f); |
| assertThat(diskUsage.getTotal()).isEqualTo(expectedTotal); |
| } |
| |
| @Test |
| public void updateSendsUsableSpaceToRecordsStats() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| final long expectedFree = 456; |
| when(dir.getUsableSpace()).thenReturn(expectedFree); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir); |
| diskUsage.update(0.0f, 1.0f); |
| assertThat(diskUsage.getFree()).isEqualTo(expectedFree); |
| } |
| |
| @Test |
| public void updateChangesStateToWarn() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| // File indicates 2% of disk used |
| when(dir.getTotalSpace()).thenReturn(100L); |
| when(dir.getUsableSpace()).thenReturn(98L); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir); |
| // warn if over 1.9% used |
| assertThat(diskUsage.update(1.9f, 0.0f)).isEqualTo(DiskState.WARN); |
| assertThat(diskUsage.getNext()).isEqualTo(DiskState.WARN); |
| assertThat(diskUsage.getPct()).isEqualTo("2%"); |
| assertThat(diskUsage.getCriticalMessage()).isNull(); |
| } |
| |
| @Test |
| public void updateStaysNormalIfBelowWarnThreshold() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| // File indicates 2% of disk used |
| when(dir.getTotalSpace()).thenReturn(100L); |
| when(dir.getUsableSpace()).thenReturn(98L); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir); |
| // warn if over 2.1% used |
| assertThat(diskUsage.update(2.1f, 0.0f)).isEqualTo(DiskState.NORMAL); |
| assertThat(diskUsage.getNext()).isNull(); |
| assertThat(diskUsage.getPct()).isNull(); |
| assertThat(diskUsage.getCriticalMessage()).isNull(); |
| } |
| |
| @Test |
| public void updateWarnThresholdIgnoresMinimum() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| // File indicates 2% of disk used |
| when(dir.getTotalSpace()).thenReturn(100L); |
| when(dir.getUsableSpace()).thenReturn(98L); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir, 1); |
| // warn if over 2.1% used |
| assertThat(diskUsage.update(2.1f, 0.0f)).isEqualTo(DiskState.NORMAL); |
| assertThat(diskUsage.getNext()).isNull(); |
| assertThat(diskUsage.getPct()).isNull(); |
| assertThat(diskUsage.getCriticalMessage()).isNull(); |
| } |
| |
| @Test |
| public void updateChangesStateToCritical() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| // File indicates 2% of disk used |
| when(dir.getTotalSpace()).thenReturn(100L); |
| when(dir.getUsableSpace()).thenReturn(98L); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir); |
| // critical if over 1.9% used |
| assertThat(diskUsage.update(0.0f, 1.9f)).isEqualTo(DiskState.CRITICAL); |
| assertThat(diskUsage.getNext()).isEqualTo(DiskState.CRITICAL); |
| assertThat(diskUsage.getPct()).isEqualTo("2%"); |
| assertThat(diskUsage.getCriticalMessage()) |
| .isEqualTo("the file system is 2% full, which reached the critical threshold of 1.9%."); |
| } |
| |
| @Test |
| public void updateStaysNormalIfBelowCriticalThreshold() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| // File indicates 2% of disk used |
| when(dir.getTotalSpace()).thenReturn(100L); |
| when(dir.getUsableSpace()).thenReturn(98L); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir); |
| // critical if over 2.1% used |
| assertThat(diskUsage.update(0.0f, 2.1f)).isEqualTo(DiskState.NORMAL); |
| assertThat(diskUsage.getNext()).isNull(); |
| assertThat(diskUsage.getPct()).isNull(); |
| assertThat(diskUsage.getCriticalMessage()).isNull(); |
| } |
| |
| @Test |
| public void updateCriticalThresholdGoesCriticalIfBelowMinimum() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| // File indicates 2% of disk used |
| when(dir.getTotalSpace()).thenReturn(100L); |
| when(dir.getUsableSpace()).thenReturn(98L); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir, 1/* one megabyte */); |
| // critical if over 2.1% used |
| assertThat(diskUsage.update(0.0f, 2.1f)).isEqualTo(DiskState.CRITICAL); |
| assertThat(diskUsage.getNext()).isEqualTo(DiskState.CRITICAL); |
| assertThat(diskUsage.getPct()).isEqualTo("2%"); |
| assertThat(diskUsage.getCriticalMessage()) |
| .isEqualTo("the file system only has 98 bytes free which is below the minimum of 1048576."); |
| } |
| |
| @Test |
| public void criticalMessageStatesUsageExceedsCritical() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| when(dir.getTotalSpace()).thenReturn(1024L * 1024L * 3L); |
| when(dir.getUsableSpace()).thenReturn(1024L * 1024L * 2L); |
| |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir, 1/* one megabyte */); |
| |
| assertThat(diskUsage.update(0.0f, 33.2f)).isEqualTo(DiskState.CRITICAL); |
| assertThat(diskUsage.getNext()).isEqualTo(DiskState.CRITICAL); |
| assertThat(diskUsage.getPct()).isEqualTo("33.3%"); |
| assertThat(diskUsage.getCriticalMessage()) |
| .isEqualTo("the file system is 33.3% full, which reached the critical threshold of 33.2%."); |
| } |
| |
| @Test |
| public void criticalMessageStatesUsageExceedsCriticalWithManyDigits() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| when(dir.getTotalSpace()).thenReturn(1024L * 1024L * 3L); |
| when(dir.getUsableSpace()).thenReturn(1024L * 1024L * 2L); |
| |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir, 1/* one megabyte */); |
| |
| assertThat(diskUsage.update(0.0f, 33.25783495783648593746336f)).isEqualTo(DiskState.CRITICAL); |
| assertThat(diskUsage.getNext()).isEqualTo(DiskState.CRITICAL); |
| assertThat(diskUsage.getPct()).isEqualTo("33.3%"); |
| assertThat(diskUsage.getCriticalMessage()) |
| .isEqualTo("the file system is 33.3% full, which reached the critical threshold of 33.3%."); |
| } |
| |
| @Test |
| public void updateCriticalThresholdStaysNormalIfFreeSpaceAboveMinimum() { |
| File dir = mock(File.class); |
| when(dir.exists()).thenReturn(true); |
| // File indicates 98% of disk used |
| when(dir.getTotalSpace()).thenReturn(100L * 1024 * 1024); |
| when(dir.getUsableSpace()).thenReturn(2L * 1024 * 1024); |
| TestableDiskUsage diskUsage = new TestableDiskUsage(dir, 1/* one megabyte */); |
| // critical if over 98.1% used |
| assertThat(diskUsage.update(0.0f, 98.1f)).isEqualTo(DiskState.NORMAL); |
| assertThat(diskUsage.getNext()).isNull(); |
| assertThat(diskUsage.getPct()).isNull(); |
| assertThat(diskUsage.getCriticalMessage()).isNull(); |
| } |
| |
| private static class TestableDiskUsage extends DiskUsage { |
| |
| private final File dir; |
| private final long minimum; |
| |
| private long total; |
| private long free; |
| private long elapsed; |
| private DiskState next; |
| private String pct; |
| private String criticalMessage; |
| |
| public TestableDiskUsage(File dir, long min) { |
| this.dir = dir; |
| this.minimum = min; |
| } |
| |
| public TestableDiskUsage(File dir) { |
| this.dir = dir; |
| this.minimum = 0L; |
| } |
| |
| public TestableDiskUsage() { |
| this.dir = null; |
| this.minimum = 0L; |
| } |
| |
| @Override |
| protected File dir() { |
| return this.dir; |
| } |
| |
| @Override |
| protected long getMinimumSpace() { |
| return this.minimum; |
| } |
| |
| @Override |
| protected void recordStats(long total, long free, long elapsed) { |
| this.total = total; |
| this.free = free; |
| this.elapsed = elapsed; |
| } |
| |
| @Override |
| protected void handleStateChange(DiskState next, String pct, String criticalMessage) { |
| this.next = next; |
| this.pct = pct; |
| this.criticalMessage = criticalMessage; |
| } |
| |
| public long getTotal() { |
| return this.total; |
| } |
| |
| public long getFree() { |
| return this.free; |
| } |
| |
| public DiskState getNext() { |
| return this.next; |
| } |
| |
| public String getPct() { |
| return this.pct; |
| } |
| |
| public String getCriticalMessage() { |
| return this.criticalMessage; |
| } |
| } |
| } |