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package com.crossoverjie.cim.server.test;
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import org.junit.Assert;
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import org.junit.Test;
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/**
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* Function:
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*
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* @author crossoverJie
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* Date: 2019-08-28 01:47
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* @since JDK 1.8
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*/
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public class EchoTest {
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@Test
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public void echo() {
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String msg = "{} say,you {}";
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String[] place = {"zhangsan", "haha"};
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String log = log(msg, place);
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System.out.println(log);
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Assert.assertEquals(log,"zhangsan say,you haha");
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}
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@Test
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public void echo2() {
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String msg = "{} say,you {},zhangsan say {}";
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String[] place = {"zhangsan", "haha", "nihao"};
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String log = log(msg, place);
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System.out.println(log);
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Assert.assertEquals(log,"zhangsan say,you haha,zhangsan say nihao");
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}
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@Test
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public void echo3() {
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String msg = "see you {},zhangsan say";
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String[] place = {"zhangsan"};
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String log = log(msg, place);
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System.out.println(log);
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Assert.assertEquals(log,"see you zhangsan,zhangsan say");
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}
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@Test
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public void echo4() {
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String msg = "{}see you,zhangsan say";
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String[] place = {"!!!"};
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String log = log(msg, place);
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System.out.println(log);
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Assert.assertEquals(log,"!!!see you,zhangsan say");
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}
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@Test
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public void echo5() {
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String msg = "see you,zhangsan say{}";
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String[] place = {"!!!"};
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String log = log(msg, place);
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System.out.println(log);
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Assert.assertEquals(log,"see you,zhangsan say!!!");
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}
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@Test
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public void echo6() {
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String msg = "see you,zhangsan say";
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String[] place = {""};
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String log = log(msg, place);
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System.out.println(log);
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Assert.assertEquals(log,"see you,zhangsan say");
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}
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private String log(String msg, String... place) {
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StringBuilder sb = new StringBuilder();
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int k = 0;
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for (int i = 0; i < place.length; i++) {
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int index = msg.indexOf("{}", k);
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if (index == -1){
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return msg;
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}
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if (index != 0) {
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sb.append(msg, k, index);
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sb.append(place[i]);
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if (place.length == 1) {
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sb.append(msg, index + 2, msg.length());
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}
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} else {
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sb.append(place[i]);
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if (place.length == 1) {
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sb.append(msg, index + 2, msg.length());
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}
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}
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k = index + 2;
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}
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return sb.toString();
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}
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} |
...
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...
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Adding tests.