fe/fe-core/src/test/java/org/apache/doris/common/util/DebugUtilTest.java

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// 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,
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package org.apache.doris.common.util;

import org.junit.Assert;

import org.junit.Test;

import org.apache.doris.common.Pair;

public class DebugUtilTest {
    @Test
    public void testGetUint() {
        Pair<Double, String> result;
        result = DebugUtil.getUint(2000000000L);
        Assert.assertEquals(Double.valueOf(2.0), result.first);
        Assert.assertEquals(result.second, "B");

        result = DebugUtil.getUint(1234567L);
        Assert.assertEquals(result.first, Double.valueOf(1.234567));
        Assert.assertEquals(result.second, "M");
        
        result = DebugUtil.getUint(1234L);
        Assert.assertEquals(result.first, Double.valueOf(1.234));
        Assert.assertEquals(result.second, "K");
        
        result = DebugUtil.getUint(123L);
        Assert.assertEquals(result.first, Double.valueOf(123.0));
        Assert.assertEquals(result.second, "");
    }
    
    @Test
    public void testGetPrettyStringMs() {
        // 6hour1min
        Assert.assertEquals(DebugUtil.getPrettyStringMs(21660222), "6h1m");
        
        // 1min222ms
        Assert.assertEquals(DebugUtil.getPrettyStringMs(60222), "1m");
        
        // 2s222ms
        Assert.assertEquals(DebugUtil.getPrettyStringMs(2222), "2s222ms");
        
        // 22ms
        Assert.assertEquals(DebugUtil.getPrettyStringMs(22), "22ms");  
    }
    
    @Test
    public void testGetByteUint() {
        Pair<Double, String> result;
        result = DebugUtil.getByteUint(0);
        Assert.assertEquals(result.first,  Double.valueOf(0.0));
        Assert.assertEquals(result.second, "");
        
        result = DebugUtil.getByteUint(123);     // B
        Assert.assertEquals(result.first, Double.valueOf(123.0));
        Assert.assertEquals(result.second, "B");
        
        result = DebugUtil.getByteUint(123456);  // K
        Assert.assertEquals(result.first, Double.valueOf(120.5625));
        Assert.assertEquals(result.second, "KB");
        
        result = DebugUtil.getByteUint(1234567);  // M
        Assert.assertEquals(result.first, Double.valueOf(1.1773748397827148));
        Assert.assertEquals(result.second, "MB");
        
        result = DebugUtil.getByteUint(1234567890L);  // G
        Assert.assertEquals(result.first, Double.valueOf(1.1497809458523989));
        Assert.assertEquals(result.second, "GB");
    }
}