// Licensed to the Apache Software Foundation (ASF) under one
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// 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
// 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.cloudstack.utils.linux;
import org.junit.Assert;
import org.junit.Test;
import java.util.Scanner;
public class MemStatTest {
@Test
public void getMemInfoParseTest() {
String memInfo = "MemTotal: 5830236 kB\n" +
"MemFree: 156752 kB\n" +
"Buffers: 326836 kB\n" +
"Cached: 2606764 kB\n" +
"SwapCached: 0 kB\n" +
"Active: 4260808 kB\n" +
"Inactive: 949392 kB\n";
MemStat memStat = null;
try {
memStat = new MemStat();
} catch (RuntimeException ex) {
// If test isn't run on linux we'll fail creation of linux-specific MemStat class due
// to dependency on /proc/meminfo if we don't catch here.
// We are really only interested in testing the parsing algorithm and getters.
if (memStat == null) {
throw ex;
}
}
Scanner scanner = new Scanner(memInfo);
memStat.parseFromScanner(scanner);
Assert.assertEquals(memStat.getTotal(), Double.valueOf(5830236));
Assert.assertEquals(memStat.getAvailable(), Double.valueOf(2763516));
Assert.assertEquals(memStat.getFree(), Double.valueOf(156752));
Assert.assertEquals(memStat.getCache(), Double.valueOf(2606764));
}
}