一、 Concurrenttesting:
下面的例子是輸出進程ID,threadPoolSize用來指明線程池的大小,也就是併發的線程數目是多少
5次調用,有3個線程可調用
@Test(invocationCount = 5, threadPoolSize = 3,groups = { "t9"})
public void smallThreadPool() {
System.out.println("Thread#: " +Thread.currentThread().getId());
}
頁面輸出
[TestNG]Running:
E:\android\selenium\test_wdng_java\src\testing.xml
Thread#:13
Thread#:15
Thread#: 14
Thread#:15
Thread#:15
===============================================
Suite
Totaltests run: 5, Failures: 0, Skips: 0
===============================================
若改成5次調用,有5個線程可調用
Thread#:10
Thread#:14
Thread#:12
Thread#:11
Thread#:13
二、Concurrentrunning of tests
TestNG可以以多線程的模式運行所有的test,這樣可以獲得最大的運行速度,最大限度的節約執行時間。當然,併發運行也是有代價的,就是需要我們的代碼是線程安全的。
併發運行測試的話,需要我們指定運行的配置文件,一個示例如下:
<suite name="Concurrent Suite" parallel="methods" thread-count="2" verbose="1" >
<>……<>
</suite>
1.Parallel=”methods”的意思是指TestNG會將method作爲併發的元子單位,即每個method運行在自己的thread中。如果parallel=”tests”,則指會將test 作爲併發的元子單位
2.Thread-count=”2”是指,運行的時候,併發度爲2,同時會有兩個線程在運行。
例如:
@Test(groups = { "t8"})
public void aThreadPool() {
System.out.println("#ThreadA: " +Thread.currentThread().getId());
}
@Test(groups = { "t8"})
public void bThreadPool() {
System.out.println("#ThreadB: " +Thread.currentThread().getId());
}
@Test(groups = { "t8"})
public void cThreadPool() {
System.out.println("#ThreadC: " +Thread.currentThread().getId());
}
--------------------------------------------------------------------
<testname="Test" parallel="methods"thread-count="2">
輸出結果:
#ThreadB:11
#ThreadC:11
#ThreadA:10
===============================================
Suite
Totaltests run: 3, Failures: 0, Skips: 0
===============================================
改成<testname="Test" parallel="tests" thread-count="2">
頁面輸出(因爲aThreadPool(),bThreadPool(),cThreadPool()都在一個test下面)
#ThreadA:1
#ThreadB:1
#ThreadC:1
===============================================
Suite
Totaltests run: 3, Failures: 0, Skips: 0
===============================================
本文轉載自http://blog.sina.com.cn/bestfeiyong