nGrinder工具進行接口性能測試

本文轉載自查看原文 2018-03-29 11:08 3393 ngrinder/grinder/ ngrinder

1.背景

之前在這篇文章中性能測試初探—接口性能測試介紹過nGrinder，本文將介紹在nGrinder腳本中使用資源文件中數據作為接口參數和解析生成的CSV結果，生成TPS標准差，TPS波動率，最小/大RT，RT 25/50/75/80/85/90/95/99百分位數(原生結果中無這些結果，這些結果更有利於性能分析)。

2.實現

2-1.創建腳本

這里寫圖片描述

這里寫圖片描述
如果腳本中需獲取參數，可以使用Performance Test菜單下的Test Configuration->Show Advanced Configuration->Parameter輸入框中參數值（http://www.cubrid.org/wiki_ngrinder/entry/how-to-pass-a-parameter-to-the-script），但是只支持1-50字符長度；如果參數值較長，可以使用resources（http://www.cubrid.org/wiki_ngrinder/entry/how-to-use-resources）, 支持json, csv, txt, properties格式。

腳本示例如下：

定義String[] basic用於存放文件./resources/basicauth.txt中的值（數組元素為文件中的每一行）

HTTP GET:


package org.ngrinder; import static net.grinder.script.Grinder.grinder import static org.junit.Assert.* import static org.hamcrest.Matchers.* import net.grinder.plugin.http.HTTPRequest import net.grinder.plugin.http.HTTPPluginControl; import net.grinder.script.GTest import net.grinder.script.Grinder import net.grinder.scriptengine.groovy.junit.GrinderRunner import net.grinder.scriptengine.groovy.junit.annotation.BeforeProcess import net.grinder.scriptengine.groovy.junit.annotation.BeforeThread // import static net.grinder.util.GrinderUtils.* // You can use this if you're using nGrinder after 3.2.3 import org.junit.Before import org.junit.BeforeClass import org.junit.Test import org.junit.runner.RunWith import HTTPClient.HTTPResponse import HTTPClient.NVPair import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * A simple example using the HTTP plugin that shows the retrieval of a * single page via HTTP. * * This script is automatically generated by ngrinder. * * @author hugang */ @RunWith(GrinderRunner) class TestRunner { public static GTest test public static HTTPRequest request public static File file public static String[] basic @BeforeProcess public static void beforeProcess() { HTTPPluginControl.getConnectionDefaults().timeout = 6000 test = new GTest(1, "10.75.0.55") request = new HTTPRequest() test.record(request); // 將文件內容轉成參數數組 basic = new File("./resources/basicauth.txt") as String[]; // grinder.logger.info(basic[0] + " " + basic[1]) grinder.logger.info("before process."); } @BeforeThread public void beforeThread() { grinder.statistics.delayReports=true; grinder.logger.info("before thread."); } @Test public void test(){ // 隨機獲取auth int index = (int) (Math.random() * basic.length); String basicAuth = basic[index]; println(basicAuth); // GET請求，wiki http://grinder.sourceforge.net/g3/script-javadoc/net/grinder/plugin/http/HTTPRequest.html // param1: uri, param2: queryData, param3: headers HTTPResponse result = request.GET("http://10.75.0.55:8080/2/likes/by_me.json",[new NVPair("object_type", "pic")] as NVPair[], [new NVPair("Authorization", basicAuth)] as NVPair[]) if (result.statusCode == 301 || result.statusCode == 302) { grinder.logger.warn("Warning. The response may not be correct. The response code was {}.", result.statusCode); } else { assertThat(result.statusCode, is(200)); // 請求返回的數據 // println(result.text); // 定義一個事務，接口返回數據校驗，是否包含 assertThat(result.text, containsString("\"object_type\":\"pic\"")); } } }

HTTP post:

package org.ngrinder; import static net.grinder.script.Grinder.grinder import static org.junit.Assert.* import static org.hamcrest.Matchers.* import net.grinder.plugin.http.HTTPRequest import net.grinder.plugin.http.HTTPPluginControl; import net.grinder.script.GTest import net.grinder.script.Grinder import net.grinder.scriptengine.groovy.junit.GrinderRunner import net.grinder.scriptengine.groovy.junit.annotation.BeforeProcess import net.grinder.scriptengine.groovy.junit.annotation.BeforeThread // import static net.grinder.util.GrinderUtils.* // You can use this if you're using nGrinder after 3.2.3 import org.junit.Before import org.junit.BeforeClass import org.junit.Test import org.junit.runner.RunWith import HTTPClient.HTTPResponse import HTTPClient.NVPair import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * A simple example using the HTTP plugin that shows the retrieval of a * single page via HTTP. * * This script is automatically generated by ngrinder. * * @author hugang */ @RunWith(GrinderRunner) class TestRunner { public static GTest test public static HTTPRequest request public static File file public static String[] basic @BeforeProcess public static void beforeProcess() { HTTPPluginControl.getConnectionDefaults().timeout = 6000 test = new GTest(1, "10.210.230.28") request = new HTTPRequest() test.record(request); // 將文件內容轉成參數數組 basic = new File("./resources/basicauth.txt") as String[]; // grinder.logger.info(basic[0] + " " + basic[1]) grinder.logger.info("before process."); } @BeforeThread public void beforeThread() { grinder.statistics.delayReports=true; grinder.logger.info("before thread."); } @Test public void test(){ // 隨機獲取auth int index = (int) (Math.random() * basic.length); String basicAuth = basic[index]; println(basicAuth); // POST請求，wiki http://grinder.sourceforge.net/g3/script-javadoc/net/grinder/plugin/http/HTTPRequest.html // param1: uri, param2: queryData, param3: headers HTTPResponse result = request.POST("http://10.210.230.28/2/statuses/update.json",[new NVPair("status", "text " + Math.random())] as NVPair[], [new NVPair("Authorization", basicAuth)] as NVPair[]) if (result.statusCode == 301 || result.statusCode == 302) { grinder.logger.warn("Warning. The response may not be correct. The response code was {}.", result.statusCode); } else { assertThat(result.statusCode, is(200)); // 請求返回的數據 // println(result.text); // 定義一個事務，接口返回數據校驗，是否包含 assertThat(result.text, containsString("\"created_at\":")); } } }

2-2. 驗證腳本

點擊Validate Script, 會出現如下信息：

... 2016-02-15 16:56:32,140 INFO Start time is 1455526592140 ms since Epoch 2016-02-15 16:56:32,318 INFO http://10.75.0.55:8080/2/likes/by_me.json?object_type=pic -> 200 OK, 3414 bytes 2016-02-15 16:56:32,342 INFO finished 1 run 2016-02-15 16:56:32,345 INFO elapsed time is 204 ms 2016-02-15 16:56:32,345 INFO Final statistics for this process: 2016-02-15 16:56:32,355 INFO Tests Errors Mean Test Test Time TPS Mean Response Response Mean time to Mean time to Mean time to Time (ms) Standard response bytes per errors resolve host establish first byte Deviation length second connection (ms) Test 1 1 0 32.00 0.00 4.90 3414.00 16735.29 0 1.00 5.00 24.00 "10.75.0.55" Totals 1 0 32.00 0.00 4.90 3414.00 16735.29 0 1.00 5.00 24.00 ...