| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * 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.android.server.am; |
| |
| import static com.android.server.am.MemoryStatUtil.parseMemoryStatFromMemcg; |
| import static com.android.server.am.MemoryStatUtil.parseMemoryStatFromProcfs; |
| import static com.android.server.am.MemoryStatUtil.MemoryStat; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNull; |
| |
| import android.support.test.filters.SmallTest; |
| import android.support.test.runner.AndroidJUnit4; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| @RunWith(AndroidJUnit4.class) |
| @SmallTest |
| public class MemoryStatUtilTest { |
| private String MEMORY_STAT_CONTENTS = String.join( |
| "\n", |
| "cache 96", // keep different from total_cache to catch reading wrong value |
| "rss 97", // keep different from total_rss to catch reading wrong value |
| "rss_huge 0", |
| "mapped_file 524288", |
| "writeback 0", |
| "swap 95", // keep different from total_rss to catch reading wrong value |
| "pgpgin 16717", |
| "pgpgout 5037", |
| "pgfault 99", // keep different from total_pgfault to catch reading wrong value |
| "pgmajfault 98", // keep different from total_pgmajfault to catch reading wrong value |
| "inactive_anon 503808", |
| "active_anon 46309376", |
| "inactive_file 876544", |
| "active_file 81920", |
| "unevictable 0", |
| "hierarchical_memory_limit 18446744073709551615", |
| "hierarchical_memsw_limit 18446744073709551615", |
| "total_cache 4", |
| "total_rss 3", |
| "total_rss_huge 0", |
| "total_mapped_file 524288", |
| "total_writeback 0", |
| "total_swap 5", |
| "total_pgpgin 16717", |
| "total_pgpgout 5037", |
| "total_pgfault 1", |
| "total_pgmajfault 2", |
| "total_inactive_anon 503808", |
| "total_active_anon 46309376", |
| "total_inactive_file 876544", |
| "total_active_file 81920", |
| "total_unevictable 0"); |
| |
| private String PROC_STAT_CONTENTS = String.join( |
| " ", |
| "1040", |
| "(system_server)", |
| "S", |
| "544", |
| "544", |
| "0", |
| "0", |
| "-1", |
| "1077936448", |
| "1", // this is pgfault |
| "0", |
| "2", // this is pgmajfault |
| "0", |
| "44533", |
| "13471", |
| "0", |
| "0", |
| "18", |
| "-2", |
| "117", |
| "0", |
| "2206", |
| "1257177088", |
| "3", // this is rss in bytes |
| "4294967295", |
| "2936971264", |
| "2936991289", |
| "3198888320", |
| "3198879848", |
| "2903927664", |
| "0", |
| "4612", |
| "0", |
| "1073775864", |
| "4294967295", |
| "0", |
| "0", |
| "17", |
| "0", |
| "0", |
| "0", |
| "0", |
| "0", |
| "0", |
| "2936999088", |
| "2936999936", |
| "2958692352", |
| "3198888595", |
| "3198888671", |
| "3198888671", |
| "3198889956", |
| "0"); |
| |
| @Test |
| public void testParseMemoryStatFromMemcg_parsesCorrectValues() throws Exception { |
| MemoryStat stat = parseMemoryStatFromMemcg(MEMORY_STAT_CONTENTS); |
| assertEquals(stat.pgfault, 1); |
| assertEquals(stat.pgmajfault, 2); |
| assertEquals(stat.rssInBytes, 3); |
| assertEquals(stat.cacheInBytes, 4); |
| assertEquals(stat.swapInBytes, 5); |
| } |
| |
| @Test |
| public void testParseMemoryStatFromMemcg_emptyMemoryStatContents() throws Exception { |
| MemoryStat stat = parseMemoryStatFromMemcg(""); |
| assertNull(stat); |
| |
| stat = parseMemoryStatFromMemcg(null); |
| assertNull(stat); |
| } |
| |
| @Test |
| public void testParseMemoryStatFromProcfs_parsesCorrectValues() throws Exception { |
| MemoryStat stat = parseMemoryStatFromProcfs(PROC_STAT_CONTENTS); |
| assertEquals(1, stat.pgfault); |
| assertEquals(2, stat.pgmajfault); |
| assertEquals(3, stat.rssInBytes); |
| assertEquals(0, stat.cacheInBytes); |
| assertEquals(0, stat.swapInBytes); |
| } |
| |
| @Test |
| public void testParseMemoryStatFromProcfs_emptyContents() throws Exception { |
| MemoryStat stat = parseMemoryStatFromProcfs(""); |
| assertNull(stat); |
| |
| stat = parseMemoryStatFromProcfs(null); |
| assertNull(stat); |
| } |
| } |