[英]Capturing browser logs with Selenium WebDriver using Java
Is there a way to capture browser logs while running automated test cases with Selenium?有没有办法在使用 Selenium 运行自动化测试用例时捕获浏览器日志? I found an article on how to capture JavaScript errors in Selenium .
我找到了一篇关于如何在 Selenium 中捕获 JavaScript 错误的文章。 But that is just for Firefox and only for errors.
但这仅适用于 Firefox,并且仅适用于错误。 I would like to get all the console logs.
我想获取所有控制台日志。
I assume it is something in the lines of:我认为它是以下几行:
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.logging.LogEntries;
import org.openqa.selenium.logging.LogEntry;
import org.openqa.selenium.logging.LogType;
import org.openqa.selenium.logging.LoggingPreferences;
import org.openqa.selenium.remote.CapabilityType;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
public class ChromeConsoleLogging {
private WebDriver driver;
@BeforeMethod
public void setUp() {
System.setProperty("webdriver.chrome.driver", "c:\\path\\to\\chromedriver.exe");
DesiredCapabilities caps = DesiredCapabilities.chrome();
LoggingPreferences logPrefs = new LoggingPreferences();
logPrefs.enable(LogType.BROWSER, Level.ALL);
caps.setCapability(CapabilityType.LOGGING_PREFS, logPrefs);
driver = new ChromeDriver(caps);
}
@AfterMethod
public void tearDown() {
driver.quit();
}
public void analyzeLog() {
LogEntries logEntries = driver.manage().logs().get(LogType.BROWSER);
for (LogEntry entry : logEntries) {
System.out.println(new Date(entry.getTimestamp()) + " " + entry.getLevel() + " " + entry.getMessage());
//do something useful with the data
}
}
@Test
public void testMethod() {
driver.get("http://mypage.com");
//do something on page
analyzeLog();
}
}
Source : Get chrome's console log来源: 获取 chrome 的控制台日志
In a more concise way, you can do:以更简洁的方式,您可以执行以下操作:
LogEntries logs = driver.manage().logs().get(LogType.BROWSER);
For me it worked wonderfully for catching JS errors in console.对我来说,它非常适合在控制台中捕获 JS 错误。 Then you can add some verification for its size.
然后您可以为其大小添加一些验证。 For example, if it is > 0, add some error output.
例如,如果它 > 0,则添加一些错误输出。
As a non-java selenium user, here is the python equivalent to Margus's answer:作为非 java selenium 用户,这里是相当于 Margus 答案的python :
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
class ChromeConsoleLogging(object):
def __init__(self, ):
self.driver = None
def setUp(self, ):
desired = DesiredCapabilities.CHROME
desired ['loggingPrefs'] = { 'browser':'ALL' }
self.driver = webdriver.Chrome(desired_capabilities=desired)
def analyzeLog(self, ):
data = self.driver.get_log('browser')
print(data)
def testMethod(self, ):
self.setUp()
self.driver.get("http://mypage.com")
self.analyzeLog()
Edit: Keeping Python answer in this thread because it is very similar to the Java answer and this post is returned on a Google search for the similar Python question编辑:在此线程中保留 Python 答案,因为它与 Java 答案非常相似,并且此帖子是在 Google 搜索类似 Python 问题时返回的
A less elegant solution is taking the log 'manually' from the user data dir:一个不太优雅的解决方案是从用户数据目录“手动”获取日志:
Set the user data dir to a fixed place:将用户数据目录设置为固定位置:
options = new ChromeOptions(); capabilities = DesiredCapabilities.chrome(); options.addArguments("user-data-dir=/your_path/"); capabilities.setCapability(ChromeOptions.CAPABILITY, options);
Get the text from the log file chrome_debug.log located in the path you've entered above.从位于您在上面输入的路径中的日志文件 chrome_debug.log 获取文本。
I use this method since RemoteWebDriver
had problems getting the console logs remotely.我使用这种方法是因为
RemoteWebDriver
在远程获取控制台日志时遇到问题。 If you run your test locally that can be easy to retrieve.如果您在本地运行测试,则可以轻松检索。
Adding LoggingPreferences to "goog:loggingPrefs" properties with the Chrome Driver options can help to fetch the Browser console logs for all Log levels.使用 Chrome 驱动程序选项将 LoggingPreferences 添加到“goog:loggingPrefs”属性可以帮助获取所有日志级别的浏览器控制台日志。
ChromeOptions options = new ChromeOptions();
LoggingPreferences logPrefs = new LoggingPreferences();
logPrefs.enable(LogType.BROWSER, Level.ALL);
options.setCapability("goog:loggingPrefs", logPrefs);
WebDriver driver = new ChromeDriver(options);
Starting with Firefox 65 an about:config
flag exists now so console API calls like console.log()
land in the output stream and thus the log file (see ( https://github.com/mozilla/geckodriver/issues/284#issuecomment-458305621 ).从 Firefox 65 开始,现在存在
about:config
标志,因此控制台 API 调用(如console.log()
进入输出流,从而进入日志文件(请参阅( https://github.com/mozilla/geckodriver/issues/284#问题评论-458305621 )。
profile = new FirefoxProfile();
profile.setPreference("devtools.console.stdout.content", true);
Driver manager logs can be used to get console logs from browser and it will help to identify errors appears in console.驱动程序管理器日志可用于从浏览器获取控制台日志,这将有助于识别控制台中出现的错误。
import org.openqa.selenium.logging.LogEntries;
import org.openqa.selenium.logging.LogEntry;
public List<LogEntry> getBrowserConsoleLogs()
{
LogEntries log= driver.manage().logs().get("browser")
List<LogEntry> logs=log.getAll();
return logs;
}
在启动 webdriver 之前,我们只需设置这个环境变量让 chrome 生成它:
export CHROME_LOG_FILE=$(pwd)/tests/e2e2/logs/client.log
Add cast RemoteWebDriver
to driver
initialize and you will have the .setLogLevel
method:将 cast
RemoteWebDriver
添加到driver
初始化,您将拥有.setLogLevel
方法:
import java.util.logging.Level;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.remote.RemoteWebDriver;
public class PrintLogTest {
public static void main(String[] args) {
System.setProperty("webdriver.chrome.driver", "/Users/.../chromedriver");
WebDriver driver = new ChromeDriver();
//here
((RemoteWebDriver) driver).setLogLevel(Level.INFO);
driver.get("https://google.com/");
driver.findElement(By.name("q")).sendKeys("automation test");
driver.quit();
}
}
Example output:示例输出:
Jun 15, 2020 4:27:04 PM org.openqa.selenium.remote.RemoteWebDriver log
INFO: Executing: get [430aec21a9beb6340a4185c4ea6a693d, get {url=https://google.com/}]
Jun 15, 2020 4:27:06 PM org.openqa.selenium.remote.RemoteWebDriver log
INFO: Executed: [430aec21a9beb6340a4185c4ea6a693d, get {url=https://google.com/}]
Jun 15, 2020 4:27:06 PM org.openqa.selenium.remote.RemoteWebDriver log
INFO: Executing: findElement [430aec21a9beb6340a4185c4ea6a693d, findElement {using=name, value=q}]
Jun 15, 2020 4:27:06 PM org.openqa.selenium.remote.RemoteWebDriver log
INFO: Executed: [430aec21a9beb6340a4185c4ea6a693d, findElement {using=name, value=q}]
...
...
At least I've tried it on ChromeDriver()
and FirefoxDriver()
and it working fine.至少我已经在
ChromeDriver()
和FirefoxDriver()
上尝试过它并且工作正常。
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