Ngrinder脚本开发各细节锦集(groovy)
1、生成随机字符串(import org.apache.commons.lang.RandomStringUtils)
数字:RandomStringUtils.randomNumeric(length); 字母:RandomStringUtils.randomAlphabetic(length); 字母加数字:RandomStringUtils.randomAlphanumeric(length); 所有ASCCII字符:RandomStringUtils.randomAscii(length); 自定义混合字符:RandomStringUtils.randomAscii(length, string);
2、生成随机数字:(import java.util.concurrent.ThreadLocalRandom;)
数字:int random_number = ThreadLocalRandom.current().nextInt(min_num, max_num);
3、获取项目数据文件路径
common项目:"/resources/account.txt" maven项目:Thread.currentThread().getContextClassLoader().getResource("/account.txt").getPath(); maven项目获取文件内容:ReflectionUtils.getCallingClass(0).getResourceAsStream("/account.txt").getText("UTF-8")
4、读取文件:
txt每行单数据: String[] file_arrary = new File("/resources/account.txt") as String[]; String file_data = file_arrary[arrary_index]; txt每行双数据: String[] file_arrary = new File("/resources/account.txt") as String[]; String data_one = file_arrary[arrary_index].split(",")[0]; String data_two = file_arrary[arrary_index].split(",")[1]; 另一种方法: List<String> reqDataArrList = new File(dataFilePath).readLines() String data_one = reqDataArrList.get(arrary_index).split(",")[0]; String data_two = reqDataArrList.get(arrary_index).split(",")[1]; txt每行多数据可参考双数据方法。也可以参考json方式存储: BufferedReader txt_content=new BufferedReader(new FileReader(new File("/resources/account.txt"))) data_json = new JSONObject() String text_line = "" while(( text_line=txt_content.readLine())!=null){ data_json.put(text_line.split(",")[0],text_line.split(",")[1]) } String data_one = data_json.keys[0] String data_two = data_json.getString(data_one)
5、写入文件:
覆盖写入: def write = new File(file_path, file_name).newPrintWriter(); write.write(write_text); write.flush(); write.close() 追加写入: def write = new File(file_path, file_name).newPrintWriter(); write.append(write_text); write.flush(); write.close()
6、json文件的数据处理(import org.ngrinder.recorder.RecorderUtils)
json文件读取: String json_str = new File(file_path).getText("UTF-8") def json_object = RecorderUtils.parseRequestToJson(json_str) 长度:json_object.length() 关键字:json_object.keys() 添加元素:json_object.put(name, value) 修改元素:json_object.put(name, value) 删除元素:json_object.remove(name, value) 获取对应value:json_object.getString(name)
7、字符串的处理
字符串截取:String new_str = old_str[0..3] 字符串替换:String string = str.replace("old","new") 字符串统计:int count = string.count("char") 字符串转化:int int_num = Integer.parseInt(string)
1、设置多个请求事务(即多个test方法)
1)设置多个静态Gtest对象: public static GTest test1 public static GTest test2 2)实例化多个Gtest对象: test1 = new GTest(1, "test1"); test2 = new GTest(2, "test2"); 3)监听多个test请求: test1.record(this, "test1") test2.record(this, "test2") 4)定义多个test方法: public void test1(){ grinder.logger.info("---ones: {}---", grinder.threadNumber+1) } public void test2(){ grinder.logger.info("---twos: {}---", grinder.threadNumber+1) }
2、Ngrinder定义请求参数集:
add方法: List<NVPair> paramList = new ArrayList<NVPair>(); paramList.add(new NVPair("name", "value")); paramList.add(new NVPair("name", "value")); params = paramList.toArray(); new方法: params = [new NVPair("name", "value"), new NVPair("name", "value")];
3、Ngrinder处理日志:
日志级别(三种常见): grinder.logger.info("----before process.----"); grinder.logger.warn("----before process.----"); grinder.logger.error("----before process.----"); 日志限定(仅打印error级别) : 1)导入依赖包 import ch.qos.logback.classic.Level; import org.slf4j.LoggerFactory; 2)设定级别 @BeforeThread LoggerFactory.getLogger("worker").setLevel(Level.ERROR); 3)设置打印语句 @test grinder.logger.error("----error.----"); 日志输出(输出所有进程日志):将每个agent的.ngrinder_agent/agent.conf中一项修改为agent.all_logs=true 日志打印:打印变量:grinder.logger.error("{},{}",variable1,variable2); // 换行或缩进可在""中加\n或\t
4、Ngrinder的cookie处理
1) 登录产生cookie @BeforeThread login_get_cookie(); // 调用登录方法 cookies = CookieModule.listAllCookies(HTTPPluginControl.getThreadHTTPClientContext()); // 配置cookie管理器 2) 读取控制器中cookie @Before cookies.each { CookieModule.addCookie(it, HTTPPluginControl.getThreadHTTPClientContext()) }
5、Ngrinder请求方式:
1)通过url加参数直接访问: post方法: HTTPResponse result = request.POST("http://192.168.2.135:8080/blogs", params, headers) get方法: HTTPResponse result = request.GET("http://192.168.2.135:8080/blogs", params, headers) 参数是json:设置请求头参数{"Content-Type": "application/json"} 2)通过参数化所有请求数据为json对象(导入import org.ngrinder.recorder.RecorderUtils) HTTPResponse result = RecorderUtils.sendBy(request, req_data_json) HTTPResponse result = RecorderUtils.sendBy(request, req_data_json)
6、Ngringer的test运行次数设定(将总运行测试次数按百分比例分配到相应test):
1)引用依赖包: import net.grinder.scriptengine.groovy.junit.annotation.RunRate 2)设置运行次数百分比(所有test设定的比例值不够100,那不满的部分不运行,比如设定总比80,只运行这80部分): @RunRate(50) // 数字代表百分比 @Test public void test1(){} @RunRate(50) // 数字代表百分比 @Test public void test2(){}
7、Ngringer获取设置的加压机总数、进程总数、线程总数等信息:
int tota_agents = Integer.parseInt(grinder.getProperties().get("grinder.agents").toString()) // 设置的总加压机数 int total_processes = Integer.parseInt(grinder.properties().get("grinder.processes").toString()) // 设置的总进程数 int total_threads = Integer.parseInt(grinder.properties().get("grinder.threads").toString()) // 设置的总线程数 int total_runs = Integer.parseInt(grinder.properties().get("grinder.runs").toString()) // 设置的总运行次数(若设置的是运行时长,则得到0)
8、Ngringer获取当前运行的加压机编号、进程编号、线程编号等信息(都从0递增):
int agent_number = grinder.agentNumber // 当前运行的加压机编号 int process_number = grinder.processNumber // 当前运行的进程编号 int thread_number = grinder.threadNumber // 当前运行的线程编号 int run_number = grinder.runNumber // 当前运行的运行次数编号
9、Ngringer获取唯一递增值方法(从1递增,不重复):
// 传递接口参数runNumber(即def runNumber = grinder.runNumber) private int getIncrementId(int runNumber){ // 获取压力机总数、进程总数、线程总数 int totalAgents = Integer.parseInt(grinder.getProperties().get("grinder.agents").toString()) int totalProcess = Integer.parseInt(grinder.getProperties().get("grinder.processes").toString()) int totalThreads = Integer.parseInt(grinder.getProperties().get("grinder.threads").toString()) // 获取当前压力机数、进程数、线程数 int agentNum = grinder.agentNumber int processNum = grinder.processNumber int threadNum = grinder.threadNumber // 获取唯一递增数id int incrementId = agentNum * totalProcess * totalThreads + processNum * totalThreads + threadNum + totalAgents * totalProcess * totalThreads * runNumber return incrementId }
10、Ngringer根据唯一递增值获取参数化文件中的唯一行号:
1)需要设置静态变量:private enum WhenOutOfValues { AbortVuser, ContinueInCycleManner, ContinueWithLastValue } 2)传递接口参数fileDataList(即def fileDataList = new File(dataFilePath).readLines()) private int getLineNum(def fileDataList) { // 获取当前运行数、数据读取行数、数据最大行数 int counter = getIncrementId(grinder.runNumber) int lineNum = counter + 1 int maxLineNum = fileDataList.size() - 1 // 读取最大值的判断处理 WhenOutOfValues outHandler = WhenOutOfValues.AbortVuser if (lineNum > maxLineNum) { if(outHandler.equals(WhenOutOfValues.AbortVuser)) { lineNum = maxLineNum //grinder.stopThisWorkerThread() } else if (outHandler.equals(WhenOutOfValues.ContinueInCycleManner)) { lineNum = (lineNum - 1) % maxLineNum + 1 } else if (outHandler.equals(WhenOutOfValues.ContinueWithLastValue)) { lineNum = maxLineNum } } return lineNum }
11、Ngrinder日志输出配置的测试信息:(import java.text.SimpleDateFormat)
public static String getTestInfo(){ String time_string = "" // 获取压测时设置的进程总数、线程总数、运行次数并在log中打印 int all_process = grinder.getProperties().getInt("grinder.processes", 1) // 设置的总进程数 int all_threads = grinder.getProperties().getInt("grinder.threads", 1) // 设置的总线程数 int all_runs = grinder.getProperties().getInt("grinder.runs", 1) // 设置的总运行次数(若设置的是运行时长,则得到0) int all_duration = grinder.getProperties().getLong("grinder.duration", 1) // 设置的总运行时长(若设置的是运行次数,则得到0) // 格式化时间毫秒输出(输出格式00:00:00) SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss") formatter.setTimeZone(TimeZone.getTimeZone("GMT+00:00")) String all_duration_str = formatter.format(all_duration) if (all_duration_str.equals("00:00:00")) time_string = "Test information: the processes is "+all_process+", the threads is "+all_threads+", the run count is "+all_runs+"." else time_string = "Test information: the processes is "+all_process+", the threads is "+all_threads+", the run time is "+all_duration_str+"." return time_string }
12、Ngrinder打印所有的配置信息
String property = grinder.getProperties(); grinder.logger.info("------- {}", property) ;
13、Ngrinder获取请求返回值:
HTTPResponse result = request.POST("http://192.168.2.135:8080/blogs", params, headers) 返回的文本:grinder.logger.info("----{}----", result.getText()) // 或者result.text 返回的状态码:grinder.logger.info("----{}----", result.getStatusCode()) // 或者result.statusCode 返回的url:grinder.logger.info("----{}----", result.getEffectiveURI()) 返回的请求头所有参数:grinder.logger.info("---\n{}---", result) 返回的请求头某参数:grinder.logger.info("----{}---- ", result.getHeader("Content-type"))
14、Ngrinder返回值的匹配:
匹配状态码:assertThat(result.getStatusCode(), is(200)) 匹配包含文本:assertThat(result.getText(), containsString("success"))
15、Ngrinder获取所有虚拟用户数:
public int getVusers() { int totalAgents = Integer.parseInt(grinder.getProperties().get("grinder.agents").toString()); int totalProcesses = Integer.parseInt(grinder.getProperties().get("grinder.processes").toString()); int totalThreads = Integer.parseInt(grinder.getProperties().get("grinder.threads").toString()); int vusers = totalAgents * totalProcesses * totalThreads; return vusers; }
16、Ngrinder的断言和error日志输出
if (result.statusCode == 301 || result.statusCode == 302) { grinder.logger.error("Possible error: {} expected: <200> but was: <{}>.",result.getEffectiveURI(),result.statusCode); } else { assertEquals((String)result.getEffectiveURI(), result.statusCode, 200) assertThat((String)result.getEffectiveURI(), result.statusCode, is(200)) }
参考文档:
1、https://testerhome.com/topics/17585?locale=zh-CN
2、https://my.oschina.net/aub/blog/858483
3、https://blog.csdn.net/u013512987/article/details/81776845
4、https://www.cnblogs.com/zjsupermanblog/archive/2017/08/18/7390980.html
5、https://www.cnblogs.com/lindows/p/10517839.html
6、https://www.cnblogs.com/zhongyehai/p/10386478.html