执行硒连接测试时出错（未定义为字符串）答案

【问题标题】：Error when performing selenium connexion test ( undefined to be a string )执行硒连接测试时出错（未定义为字符串）
【发布时间】：2017-08-31 02:04:48
【问题描述】：

我有错误：预期 [object Undefined] undefined 是一个字符串而且我不知道如何解决它。我不知道如何修复它，也不知道在哪里搜索潜在错误。

Firefox 已启动，但没有执行任何访问该站点的操作。

我的变量 paramTest2、paramTest3、paramTest4... 是空的，我不明白为什么...只有 paramTest1 包含一些东西，这是网址。

这是完整的跟踪：

[TestNG] Running:
C:\Temp\testng-eclipse--806319973\testng-customsuite.xml

###################################################
##### TEST : Connexion
##### DESCRIPTION : Test sur la connexion
###################################################
1491402504078   geckodriver INFO    Listening on 127.0.0.1:13254
1491402504745   mozprofile::profile INFO    Using profile path    C:\Temp\rust_mozprofile.IGVKHcaTXwv0
1491402504751   geckodriver::marionette INFO    Starting browser C:\Program Files\Nightly\firefox.exe with args []
1491402504759   geckodriver::marionette INFO    Connecting to Marionette on localhost:60098
1491402505513   Marionette  WARN    Deprecated preference marionette.defaultPrefs.enabled detected, please use marionette.enabled
[GPU 7556] WARNING: pipe error: 109: file c:/builds/moz2_slave/m-cen-w64-ntly-000000000000000/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc,   line 346
[Child 11252] WARNING: pipe error: 109: file c:/builds/moz2_slave/m-cen-w64-ntly-  000000000000000/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc,   line 346
[Child 11252] WARNING: pipe error: 109: file c:/builds/moz2_slave/m-cen-w64-ntly-000000000000000/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346
1491402507490   Marionette  INFO    Listening on port 60098
1491402507875   Marionette  WARN    TLS certificate errors will be ignored for this session
avr. 05, 2017 4:28:27 PM org.openqa.selenium.remote.ProtocolHandshake  createSession
INFOS: Detected dialect: W3C
Connexion au site : https://wd3-impl.workday.com/ag_preview/login.htmld?redirect=n
Connexion à l'espace client
[Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\Default suite\Default test.xml
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\Default suite exists: true
[Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\Default suite\Default test0.xml
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\Default suite exists: true
FAILED: testCas("Connexion", "testcases\testcase1.csv", "Test sur la connexion")
org.openqa.selenium.InvalidArgumentException: Expected [object Undefined] undefined to be a string
Build info: version: '3.3.1', revision: '5234b325d5', time: '2017-03-10 09:10:29 +0000'
System info: host: 'TOLX300092143', ip: '44.10.108.53', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_121'
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities [{moz:profile=C:\Temp\rust_mozprofile.IGVKHcaTXwv0, rotatable=false, timeouts={implicit=0, pageLoad=300000, script=30000}, pageLoadStrategy=normal, platform=ANY, specificationLevel=0, moz:accessibilityChecks=false, acceptInsecureCerts=true, browserVersion=55.0a1, platformVersion=6.1, moz:processID=7624, browserName=firefox, platformName=windows_nt}]
Session ID: 44ae5d76-506f-4cd3-95c6-b11b71455bfd
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:133)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:99)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:43)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:163)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:604)
at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:274)
at org.openqa.selenium.remote.RemoteWebElement.sendKeys(RemoteWebElement.java:98)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at      org.openqa.selenium.support.pagefactory.internal.LocatingElementHandler.invoke(LocatingElementHandler.java:51)
at com.sun.proxy.$Proxy6.sendKeys(Unknown Source)
at selenium.FindElements.connexionWD(FindElements.java:27)
at selenium.SeleniumTest.testEtape(SeleniumTest.java:105)
at selenium.SeleniumTest.testCas(SeleniumTest.java:81)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:100)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:646)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:811)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1137)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:129)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:112)
at org.testng.TestRunner.privateRun(TestRunner.java:753)
at org.testng.TestRunner.run(TestRunner.java:607)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:368)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:363)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:321)
at org.testng.SuiteRunner.run(SuiteRunner.java:270)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1284)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1209)
at org.testng.TestNG.runSuites(TestNG.java:1124)
at org.testng.TestNG.run(TestNG.java:1096)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:132)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:230)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)


===============================================
Default test
Tests run: 1, Failures: 1, Skips: 0
===============================================


===============================================
Default suite
Total tests run: 1, Failures: 1, Skips: 0
===============================================

[TestNG] Time taken by org.testng.reporters.jq.Main@13fee20c: 75 ms
[TestNG] Time taken by org.testng.reporters.EmailableReporter2@4cb2c100: 15 ms
[TestNG] Time taken by org.testng.reporters.XMLReporter@5d624da6: 8 ms
[Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\toc.html
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
[Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\Default test.properties
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
[Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\index.html
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
[Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\main.html
 [Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
 [Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\groups.html
 [Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
 [Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\classes.html
 [Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
 [Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\reporter-output.html
 [Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
 [Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\methods-not-run.html
 [Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
 [Utils] Attempting to create C:\Users\ng647f1 \Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite\testng.xml.html
 [Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\Default suite exists: true
 [Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old\index.html
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\old exists: true
[TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@5f2050f6: 44 ms
[Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\junitreports\TEST-selenium.SeleniumTest.xml
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\junitreports exists: true
[TestNG] Time taken by org.testng.reporters.JUnitReportReporter@77b52d12: 10 ms
 [Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\testng-failed.xml
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output exists: true
[Utils] Attempting to create C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\Default suite\testng-failed.xml
[Utils]   Directory C:\Users\ng647f1\Desktop\Worspaces_Automation\WD_Automation\WD_Automation_EXPORT\WD_Automation\test-output\Default suite exists: true
[TestNG] Time taken by [FailedReporter passed=0 failed=0 skipped=0]: 15 ms

这是我的脚本 findElements ：

package selenium;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.FindBy;
import org.openqa.selenium.support.How;


public class FindElements {

final WebDriver driver;

@FindBy(how = How.XPATH, using = "//input[@aria-label=\"Nom d'utilisateur\"]")
public WebElement PSEUDO;

@FindBy(how = How.XPATH, using = "//input[@aria-label='Mot de passe']")
public WebElement MDP;

@FindBy(how = How.CLASS_NAME, using = "GDQYR4DOVK")
public WebElement CONNECT;

public FindElements(WebDriver driver){
    this.driver = driver;
}

public void connexionWD(String EmailConnect, String MdpConnect){
    PSEUDO.sendKeys(EmailConnect);
    MDP.sendKeys(MdpConnect);
    CONNECT.click();
}

}

这是我的脚本 SeleniumTest ：

package selenium;

import java.io.IOException;
import org.testng.annotations.Test;
import org.testng.annotations.DataProvider;
import java.io.FileReader;
import java.util.List;
import com.opencsv.*;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.PageFactory;
import org.openqa.selenium.remote.DesiredCapabilities;

public class SeleniumTest {

private static WebDriver driver = null;

@DataProvider(name = "testPlan")
public Object[][] motCles() throws IOException {
      //Lecture du plan de test avec Open CSV
      CSVReader reader = new CSVReader(new FileReader("testplan.csv"), ';', '"', 1);
             int i = 0;
             List<String[]> allRows = reader.readAll();
             Object testPlan[][]= new Object[allRows.size()][3];
             for(String[] row : allRows){
                   testPlan[i][0] = row[0];
                   testPlan[i][1] = row[1];
                   testPlan[i][2] = row[2];
                   i++;
             }
             reader.close();
      return testPlan;
}


@Test(dataProvider = "testPlan")

public void testCas(String nomTest, String lienTest, String descTest) throws Exception {

        //Lecture du cas de test avec OpenCSV
        CSVReader reader = new CSVReader(new FileReader(lienTest), ';', '"', 1);

        //System.setProperty("webdriver.chrome.driver", "chromedriver.exe");
        //System.setProperty("webdriver.ie.driver", "IEDriverServer.exe");
        System.setProperty("webdriver.firefox.marionnette","C:\\Users\\ng647f1\\Desktop\\Worspaces_Automation\\WD_Automation\\WD_Automation_EXPORT\\WD_Automation\\geckodriver.exe");

        int i = 0;
        int j = 0;

        System.out.println("###################################################");
        System.out.println("##### TEST : " + nomTest);
        System.out.println("##### DESCRIPTION : " + descTest);
        System.out.println("###################################################");

        List<String[]> allRows = reader.readAll();
        String testDescription[][]= new String[50][21];

        //Sélection du navigateur utilisé pour le test en cours. Ce navigateur est défini dans les cas de tests.
        DesiredCapabilities capabilities;
        capabilities = DesiredCapabilities.firefox();
        capabilities.setCapability("marionette", true);
        capabilities.setCapability("proxyType", "pac");
        capabilities.setCapability("acceptInsecureCerts", true);
        capabilities.setCapability("browser.private.browsing.autostart", true); 

        driver = new FirefoxDriver(capabilities);

        //On agrandit la fenêtre de test pour éviter les problèmes d'invisibilité d'éléments avec ChromeDriver.
        driver.manage().window().maximize();
        //On définit le temps d'attente avant qu'un cas de test tombe en erreur quand un élément n'est pas trouvé.
        driver.manage().timeouts().implicitlyWait(1000, TimeUnit.SECONDS);

        //On lit les paramètres du cas de test dans le fichier du plan de test
        for(String[] row : allRows){
              for(j = 0; j<=20; j++){
                     testDescription[i][j] = row[j];
              }
              if (testDescription[i][0] != null) {
                     //On lance le cas de test
                     testEtape(testDescription[i][0], testDescription[i][1], testDescription[i][2], testDescription[i][3], testDescription[i][4], testDescription[i][5], testDescription[i][6], testDescription[i][7], testDescription[i][8], testDescription[i][9], testDescription[i][10], testDescription[i][11], testDescription[i][12], testDescription[i][13], testDescription[i][14], testDescription[i][15], testDescription[i][16], testDescription[i][17], testDescription[i][18], testDescription[i][19], testDescription[i][20]);
              }
              i++;
        }
        driver.quit();
        reader.close();     
}

// Interprétation des mots-clés

public void testEtape(String motCle, String paramTest1, String paramTest2, String paramTest3, String paramTest4, String paramTest5, String paramTest6, String paramTest7, String paramTest8, String paramTest9, String paramTest10, String paramTest11, String paramTest12, String paramTest13, String paramTest14, String paramTest15, String paramTest16, String paramTest17, String paramTest18, String paramTest19, String paramTest20) throws Exception {    

    //On initialise les classes des pages avec PageFactory
    FindElements FindElements1 = PageFactory.initElements(driver, FindElements.class);

    //Pour chaque mot clé, des actions sont lancées. Certaines de ces actions sont des fonctions définies dans les classes des pages
    switch(motCle.toUpperCase()){ 
        case "ALLER":
            System.out.println("Connexion au site : " + paramTest1);
            driver.get(paramTest1);
            driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        break;
        case "CONNEXION":
             System.out.println("Connexion à l'espace client");
             FindElements1.connexionWD(paramTest1, paramTest2);
             driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        break;
        default :
             System.out.println("||||| Mot clé non trouvé : " + motCle.toUpperCase());  
    }

}


}

我的脚本使用以下两个 csv 文件。

有 testplan.csv ：

Nom;Fichier;Description
Connexion;testcases\\testcase1.csv;Test sur la connexion

目前只包含一个测试用例，testcase1.csv：

Mot clé;Paramètre 1;Paramètre 2;Paramètre 3;Paramètre 4;Paramètre 5;Paramètre 6;Paramètre 7;Paramètre 8;Paramètre 9;Paramètre 10;Paramètre 11;Paramètre 12;Paramètre 13;Paramètre 14;Paramètre 15;Paramètre 16;Paramètre 17;Paramètre 18;Paramètre 19;Paramètre 20
ALLER;https://wd3-impl.workday.com/ag_preview/login.htmld?redirect=n;;;;;;;;;;;;;;;;;;;
CONNEXION;thisIsMySecret@email;MySecretPassword;;;;;;;;;;;;;;;;;;

我希望你们中的一个可以帮助我:)

【问题讨论】：

标签： java eclipse selenium firefox

【解决方案1】：

看起来 selenium 跟不上 WebDriver...

来自https://groups.google.com/forum/#!forum/selenium-users

从您的堆栈跟踪来看，Selenium 似乎发送了错误的 JSON 身体到壁虎司机。 geckodriver 期望
    {text: "string"} 
而 Selenium 中的 RemoteWebElement.java 发送
    {value: ["s", "t", "r", "i", "n", "g"]} 
我会用 Selenium 提交一个错误。

【讨论】：

【解决方案2】：

如果您只想在 testCas 内部调用方法 testEtape 而不是作为单独的测试，则从 testEtape 中删除 @Test。

【讨论】：

是的！它适用于“testEtape 需要 21 个参数，但 @Test 注释中提供了 0”错误，但不适用于错误“预期 [object Undefined] undefined to be a string”
可能尝试使用testDescription[i][0].toString，同时在testCas 中调用testEtape 作为testEtape(testDescription[i][0].toString,testDescription[i][1].toString(), testDescription[i][2].toString()........);
它没有改变任何东西
在调用FindElements1.connexionWD(paramTest1, paramTest2);之前尝试在testEtape中打印paramTest1, paramTest2
paramTest1 包含网址，paramTest2 为空！