Ngrinder脚本开发各细节锦集(groovy)
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