TestNG

testNG是java中的一套测试框架，它基于JUnit思想并强化了测试注解，可以灵活应用于各种测试场景。

maven依赖

<!-- https://mvnrepository.com/artifact/org.testng/testng -->
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.14.3</version>
            <scope>test</scope>
        <dependency>

用例的编写

@BeforeGroups：此测试组内所有测试之前
@AfterGroups：此测试组内所有测试都运行之后
@BeforeClass：测试类之前运行，用于测试前的准备工作
@AfterClass：测试类之后运行，用于测试后清理工作
@BeforeTest：测试方法前运行，只运行一次
@AfterTest：测试方法后运行，只运行一次
@BeforeMethod：每个测试方法之前都运行
@AfterMethod：每个测试方法之后都运行

import org.testng.annotations.*;

public class Lesson1 {
    @BeforeClass
    public void testBeforeClass(){
        System.out.println("before class");
    }
    @Test(groups = "a")
    public void test_a(){
        System.out.println("test_a");
    }
    @BeforeTest
    public void beforeTest(){
        System.out.println("before test");
    }
    @BeforeMethod
    public void beforeMethod(){
        System.out.println("before method");
    }
    @Test
    public void test_b(){
        System.out.println("test_b");
    }
    @BeforeGroups(groups = "a")
    public void beforeGroup(){
        System.out.println("before group a");
    }
}

执行结果：
before test
before class
before group a
before method
test_a
before method
test_b

===============================================
Default Suite
Total tests run: 2, Failures: 0, Skips: 0

Test方法的细节

分组和执行次数，用例级别

 public class Lesson1 {
    @BeforeClass
    public void testBeforeClass(){
        System.out.println("before class");
    }
    @Test(groups = "a",priority = 5)    //设置级别，数字小的优先执行
    public void test_a(){
        System.out.println("test_a");
    }
    @BeforeTest
    public void beforeTest(){
        System.out.println("before test");
    }
    @BeforeMethod
    public void beforeMethod(){
        System.out.println("before method");
    }
    @Test(groups = "b",invocationCount = 5,priority = 2,threadPoolSize = 3) //设置线程组，1次执行3个
    public void test_b(){
        System.out.println("test_b");
    }
    @BeforeGroups(groups = "a")
    public void beforeGroup(){
        System.out.println("before group a");
    }
}

before test
before class
before method
before method
before method
test_b
test_b
test_b
before method
before method
test_b
test_b
before group a
before method
test_a

===============================================
Default Suite
Total tests run: 6, Failures: 0, Skips: 0

用例的管理

通过testNG.xml可以对用例进行管理。https://testng.org/doc/documentation-main.html#testng-xml

1.执行指定包的测试用例

<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="Suite1" verbose="1" >
    <test name="Nopackage" >
        <packages>
            <package name="date89"/>
        </packages>
    </test>
</suite>

2.执行指定类

#xml
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="Suite1" verbose="1" >
    <test name="part1" >
        <classes>
            <class name="date89.Lesson1" />
        </classes>
    </test>
    <test name="part2">
        <classes>
            <class name="date89.Lesson2"/>
        </classes>
    </test>
</suite>

3.执行指定组

注意：在组后要指定执行的类或包，否则结果为空，如

<suite name="Regression1" verbose="1">
    <test name="Lesson1" >
        <groups>
            <run>
                <include name="chen" />
            </run>
        </groups>
    </test>
</suite>```
![](https://images2018.cnblogs.com/blog/1418970/201808/1418970-20180809200244966-1199793839.png)
``` #xml
<suite name="Regression1" verbose="1">
    <test name="Lesson1" >
        <groups>
            <run>
                <include name="chen" />
            </run>
        </groups>
        <classes>
            <class name="date89.Lesson1"></class>
        </classes>
    </test>
</suite> ```
![](https://images2018.cnblogs.com/blog/1418970/201808/1418970-20180809200205034-583950136.png)
``` #xml
<suite name="Regression1" verbose="1">
    <test name="Lesson1" >
        <groups>
            <run>
                <include name="chen" />
            </run>
        </groups>
        <packages>
            <package name="date89" />
        </packages>
    </test>
</suite> ```
![](https://images2018.cnblogs.com/blog/1418970/201808/1418970-20180809195900335-1116285125.png)
```#xml 重新定义组
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="Regression1" verbose="1">
    <test name="Lesson1" >
        <groups>
            <define name="new">
                <include name="chen"/>
                <include name="a"/>
            </define>
            <run>
                <include name="chen" />
            </run>
        </groups>
        <packages>
            <package name="date89"/>
        </packages>
    </test>
</suite>
![](https://images2018.cnblogs.com/blog/1418970/201808/1418970-20180809203044436-1647061211.png)

## 4.执行指定某个测试用例
```    #xml
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="Regression1" verbose="1">
    <test name="part1">
        <classes>
            <class name="date89.Lesson2">
                <methods>
                    <include name="lesson2Test2"/>
                    <exclude name="lesson2Test1"/>
                </methods>
            </class>
        </classes>
    </test>
</suite>

#java
//Lesson1.java
package date89;

import com.google.common.base.StandardSystemProperty;
import org.testng.annotations.*;

public class Lesson1 {
    @BeforeClass
    public void lesson1BeforeClass(){
        System.out.println("lesson1:before class");
    }
    @Test(groups = "a",priority = 5)
    public void test_a(){
        System.out.println("lesson1:test_a,{groups,a}");
    }
    @BeforeTest
    public void beforeTest(){
        System.out.println("lesson1:before test");
    }
    @BeforeMethod
    public void lesson1BeforeMethod(){
        System.out.println("lesson1:before method");
    }
    @Test(groups = {"chen"},priority = 2)
    public void lesson1Test_b(){
        System.out.println("lesson1:test_b,{groups,chen}");
    }
    @BeforeGroups(groups = {"chen"})
    public void lesson1BeforeGroup(){
        System.out.println("lesson1:before group a");
    }

}

//Lesson2
package date89;

import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import sun.java2d.pipe.ShapeSpanIterator;

public class Lesson2 {
    @BeforeTest
    public void lesson2BeforeTest1(){
        System.out.println("lesson2:before test");
    }
    @BeforeClass
    public void lesson2BeforeClass1(){
        System.out.println("lesson2:before class");
    }
    @Test(groups = {"chen"})
    public void lesson2Test1(){
        System.out.println("lesson2:test1 {group,chen}");
    }
    @Test
    public void lesson2Test2(){
        System.out.println("lesson2:test2");
    }
}
//Lesson3.java
package date89;

import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

public class lesson3 {
    @BeforeTest
    public void lesson3BeforeTest1(){
        System.out.println("lesson3:before test");
    }
    @BeforeClass
    public void lesson3BeforeClass1(){
        System.out.println("lesson3:before class");
    }
    @Test
    public void lesson3Test(){
        System.out.println("lesson3:test");
    }
}