在詹金斯（Jenkins）建立TestG maven项目时遇到问题

Question

I have an issue with building TestNG based Maven project via Jenkins. The issue is that if I have less number of test to run (up to 30) everything runs fine, but as soon as I increase the number, the build fails consistently. The problem I see is that, tests doesn't start until all the browser instance are open (eg, browser opens 30 windows first then start execution for suite of 30 tests) and when the test gets complete(not entire test suite), the browser window doesn't close (even after adding driver.quit() method) and it remains open till the TestSuite run is complete.

Below is snippet of my code.

Main Java class:

public class AccountManagement {
    public WebDriver driver = new FirefoxDriver();
    public WebDriverWait wait = new WebDriverWait(driver, 20);
    public void login(String uid, String pass) throws Throwable {
        driver.manage().window().maximize();
        driver.get(URL);
        driver.findElement(By.id("Email")).sendKeys(uid);
        driver.findElement(By.id("Password")).sendKeys(pass);
        driver.findElement(By.id("btnLogin")).click();

        <!-- REST OF THE CODE-->
    }
}

Sample test class:

public class TC_AC408 extends AccountManagement {

    @Test(retryAnalyzer=Retry.class)
    public void accountActionLinks() {
        login("auto.admin@test.com", "test@123");
        <!-- REST OF THE CODE-->
    }

    @AfterTest
    public void end() {
        driver.quit();
    }
}

Here is my testng.xml:

<suite name="Smoke Test" preserve-order="true" thread-count="1" verbose="1" parallel="false">
    <test name="Accounts">
        <classes>
            <class name="SmokeTests.TC_AC408"></class>
            <class name="SmokeTests.TC_AC409"></class>
            <class name="SmokeTests.TC_AC410"></class>
            <class name="SmokeTests.TC_AC411"></class>
            <class name="SmokeTests.TC_AC412"></class>
            <class name="SmokeTests.TC_AC413"></class>
            <class name="SmokeTests.TC_AC414"></class>
            <class name="SmokeTests.TC_AC416"></class>
        </classes>
    </test>
    <test name="Organization">
        <classes>
            <class name="SmokeTests.TC_AC470"></class>
            <class name="SmokeTests.TC_AC474"></class>
            <class name="SmokeTests.TC_AC475"></class>
            <class name="SmokeTests.TC_AC477"></class>
            <class name="SmokeTests.TC_AC478"></class>
        </classes>
    </test>
    <test name="Project Management">
        <classes>
            <class name="SmokeTests.TC_AC186"></class>
            <class name="SmokeTests.TC_AC191"></class>
            <class name="SmokeTests.TC_AC193"></class>
            <class name="SmokeTests.TC_AC194"></class>
            <class name="SmokeTests.TC_AC195"></class>
            <class name="SmokeTests.TC_AC196"></class>
            <class name="SmokeTests.TC_AC200"></class>
            <class name="SmokeTests.TC_AC785"></class>
            <class name="SmokeTests.TC_AC786"></class>
            <class name="SmokeTests.TC_AC788"></class>
            <class name="SmokeTests.TC_AC790"></class>
        </classes>
    </test>
    <test name="Registration">
        <classes>
            <class name="SmokeTests.TC_AC381"></class>
            <class name="SmokeTests.TC_AC385"></class>
            <class name="SmokeTests.TC_AC387"></class>
            <class name="SmokeTests.TC_AC398"></class>
            <class name="SmokeTests.TC_AC386"></class>
            <class name="SmokeTests.TC_AC388"></class>
        </classes>
    </test>
    <test name="Product">
        <classes>
            <class name="SmokeTests.TC_AC482"></class>
            <class name="SmokeTests.TC_AC483"></class>
            <class name="SmokeTests.TC_AC486"></class>
            <class name="SmokeTests.TC_AC487"></class>
            <class name="SmokeTests.TC_AC489"></class>
            <class name="SmokeTests.TC_AC491"></class>
            <class name="SmokeTests.TC_AC492"></class>
            <class name="SmokeTests.TC_AC1777"></class>
            <class name="SmokeTests.TC_AC1823"></class>
            <class name="SmokeTests.TC_AC1949"></class>
        </classes>
    </test>

    <listeners>
        <listener class-name="org.uncommons.reportng.HTMLReporter"/>
        <listener class-name="org.uncommons.reportng.JUnitXMLReporter"/>
        <listener class-name="SmokeTests.RetryListener"/>
    </listeners>
</suite>

Here is my pom.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<!--suppress ALL -->
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://maven.apache.org/POM/4.0.0"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 h
ttp://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>project_selenium_mvn</groupId>
    <artifactId>project_selenium_mvn</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>jar</packaging>

    <properties>
        <suiteXmlFile>testng.xml</suiteXmlFile>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.1.1</version>
        </dependency>
        <!-- Adding Selenium dependency -->
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-server</artifactId>
            <version>2.48.2</version>
        </dependency>
        <dependency>
            <groupId>com.relevantcodes</groupId>
            <artifactId>extentreports</artifactId>
            <version>2.40</version>
        </dependency>
        <dependency>
            <groupId>org.uncommons</groupId>
            <artifactId>reportng</artifactId>
            <version>1.1.4</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    <compilerVersion>1.8</compilerVersion>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.17</version>
                <configuration>
                    <suiteXmlFiles>
                        <suiteXmlFile>testng.xml</suiteXmlFile>
                    </suiteXmlFiles>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

And below is the error I am getting:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.19:test (default-test) on project acutiy_selenium_mvn: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.19:test failed: There was an error in the forked process
[ERROR] org.testng.TestNGException:
[ERROR] 
[ERROR] Cannot instantiate class SmokeTests.TC_AC193
[ERROR] at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:37)
[ERROR] at org.testng.internal.ClassHelper.createInstance1(ClassHelper.java:372)
[ERROR] at org.testng.internal.ClassHelper.createInstance(ClassHelper.java:284)
[ERROR] at org.testng.internal.ClassImpl.getDefaultInstance(ClassImpl.java:109)
[ERROR] at org.testng.internal.ClassImpl.getInstances(ClassImpl.java:181)
[ERROR] at org.testng.internal.TestNGClassFinder.<init>(TestNGClassFinder.java:120)
[JENKINS] Archiving C:\AutomatedTest\project_selenium_mvn\pom.xml to project_selenium_mvn/project_selenium_mvn/1.0-SNAPSHOT/project_selenium_mvn-1.0-SNAPSHOT.pom
[ERROR] at org.testng.TestRunner.initMethods(TestRunner.java:402)
[ERROR] at org.testng.TestRunner.init(TestRunner.java:228)
[ERROR] at org.testng.TestRunner.init(TestRunner.java:198)
[ERROR] at org.testng.TestRunner.<init>(TestRunner.java:147)
[ERROR] at org.testng.SuiteRunner$DefaultTestRunnerFactory.newTestRunner(SuiteRunner.java:525)
[ERROR] at org.testng.SuiteRunner.init(SuiteRunner.java:156)
[ERROR] at org.testng.SuiteRunner.<init>(SuiteRunner.java:110)
[ERROR] at org.testng.TestNG.createSuiteRunner(TestNG.java:1235)
[ERROR] at org.testng.TestNG.createSuiteRunners(TestNG.java:1222)
[ERROR] at org.testng.TestNG.runSuitesLocally(TestNG.java:1074)
[ERROR] at org.testng.TestNG.run(TestNG.java:999)
[ERROR] at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:282)
[ERROR] at org.apache.maven.surefire.testng.TestNGXmlTestSuite.execute(TestNGXmlTestSuite.java:83)
[ERROR] at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:114)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:286)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:240)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
[ERROR] Caused by: java.lang.reflect.InvocationTargetException
[ERROR] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[ERROR] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
[ERROR] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[ERROR] at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
[ERROR] at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:28)
[ERROR] ... 22 more
[ERROR] Caused by: org.openqa.selenium.WebDriverException: Failed to connect to binary FirefoxBinary(C:\Program Files (x86)\Mozilla Firefox\firefox.exe) on port 7079; process output follows:
[ERROR] 
[ERROR] Build info: version: '2.48.2', revision: '41bccdd10cf2c0560f637404c2d96164b67d9d67', time: '2015-10-09 13:08:06'
[ERROR] System info: host: 'WIN-O8VQ2P3P2GD', ip: '172.31.62.242', os.name: 'Windows Server 2008 R2', os.arch: 'amd64', os.version: '6.1', java.version: '1.7.0_79'
[ERROR] Driver info: driver.version: FirefoxDriver
[ERROR] at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.start(NewProfileExtensionConnection.java:135)
[ERROR] at org.openqa.selenium.firefox.FirefoxDriver.startClient(FirefoxDriver.java:271)
[ERROR] at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:117)
[ERROR] at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:216)
[ERROR] at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:211)
[ERROR] at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:207)
[ERROR] at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:120)
[ERROR] at Automation.ProjectManagementPage.<init>(ProjectManagementPage.java:17)
[ERROR] at SmokeTests.TC_AC193.<init>(TC_AC193.java:15)
[ERROR] ... 27 more
[ERROR] Caused by: org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7079 after 45000 ms. Firefox console output:
[ERROR] 
[ERROR] at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.start(NewProfileExtensionConnection.java:123)
[ERROR] ... 35 more
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException

Answer 1

You are creating driver instance whenever for every class inside a test and quitting driver only once per test.Instead of instantiating WebDriver directly in class do it in @BeforeTest. It will ensure only one driver is created per test.

Your class whould look like below after upation.

public class AccountManagement {
public WebDriver driver;
public WebDriverWait wait;
@BeforeTest
public void beforeTest(){
    driver = new FirefoxDriver();
    wait = new WebDriverWait(driver, 20);
}
public void login(String uid, String pass) throws Throwable {
    driver.manage().window().maximize();
    driver.get(URL);
    driver.findElement(By.id("Email")).sendKeys(uid);
    driver.findElement(By.id("Password")).sendKeys(pass);
    driver.findElement(By.id("btnLogin")).click();

    <!-- REST OF THE CODE-->
 }
}