| // Copyright 2014 The Bazel Authors. All rights reserved. |
| // |
| // 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.google.devtools.build.lib.util; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| import com.google.devtools.build.lib.vfs.util.FsApparatus; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| import java.io.IOException; |
| |
| /** |
| * Tests for ProcMeminfoParser. |
| */ |
| @RunWith(JUnit4.class) |
| public class ProcMeminfoParserTest { |
| |
| private FsApparatus scratch = FsApparatus.newNative(); |
| |
| @Test |
| public void memInfo() throws IOException { |
| String meminfoContent = StringUtilities.joinLines( |
| "MemTotal: 3091732 kB", |
| "MemFree: 2167344 kB", |
| "Buffers: 60644 kB", |
| "Cached: 509940 kB", |
| "SwapCached: 0 kB", |
| "Active: 636892 kB", |
| "Inactive: 212760 kB", |
| "HighTotal: 0 kB", |
| "HighFree: 0 kB", |
| "LowTotal: 3091732 kB", |
| "LowFree: 2167344 kB", |
| "SwapTotal: 9124880 kB", |
| "SwapFree: 9124880 kB", |
| "Dirty: 0 kB", |
| "Writeback: 0 kB", |
| "AnonPages: 279028 kB", |
| "Mapped: 54404 kB", |
| "Slab: 42820 kB", |
| "PageTables: 5184 kB", |
| "NFS_Unstable: 0 kB", |
| "Bounce: 0 kB", |
| "CommitLimit: 10670744 kB", |
| "Committed_AS: 665840 kB", |
| "VmallocTotal: 34359738367 kB", |
| "VmallocUsed: 300484 kB", |
| "VmallocChunk: 34359437307 kB", |
| "HugePages_Total: 0", |
| "HugePages_Free: 0", |
| "HugePages_Rsvd: 0", |
| "Hugepagesize: 2048 kB", |
| "Bogus: not_a_number", |
| "Bogus2: 1000000000000000000000000000000000000000000000000 kB", |
| "Not even a valid line" |
| ); |
| |
| String meminfoFile = scratch.file("test_meminfo", meminfoContent).getPathString(); |
| ProcMeminfoParser memInfo = new ProcMeminfoParser(meminfoFile); |
| |
| assertEquals(2356756, memInfo.getFreeRamKb()); |
| assertEquals(509940, memInfo.getRamKb("Cached")); |
| assertEquals(3091732, memInfo.getTotalKb()); |
| assertNotAvailable("Bogus", memInfo); |
| assertNotAvailable("Bogus2", memInfo); |
| } |
| |
| private static void assertNotAvailable(String field, ProcMeminfoParser memInfo) { |
| try { |
| memInfo.getRamKb(field); |
| fail(); |
| } catch (IllegalArgumentException e) { |
| // Expected. |
| } |
| } |
| |
| } |