如何将Firefox设置为在Katalon测试执行期间不提示下载文件？

Question

我正在尝试创建一个非常简单的Katalon测试用例，它打开Firefox，转到给定的URL，然后单击一个按钮来下载文件。我已经根据Katalon文档(https://github.com/katalon-studio/docs/blob/master/pages/katalon-studio/docs/introduction-to-desired-capabilities.md)设置了所需的功能，但没有成功。当我尝试下载一个文件时，出现提示，文件没有被下载。如何禁用提示并立即下载文件？

下面是软件版本、源代码和屏幕截图。

Windows 10、Katalon Studio 7.2.1、Mozilla Firefox 72.0.2、Selenium 3.141.59

import static com.kms.katalon.core.checkpoint.CheckpointFactory.findCheckpoint
import static com.kms.katalon.core.testcase.TestCaseFactory.findTestCase
import static com.kms.katalon.core.testdata.TestDataFactory.findTestData
import static com.kms.katalon.core.testobject.ObjectRepository.findTestObject
import static com.kms.katalon.core.testobject.ObjectRepository.findWindowsObject
import com.kms.katalon.core.checkpoint.Checkpoint as Checkpoint
import com.kms.katalon.core.cucumber.keyword.CucumberBuiltinKeywords as CucumberKW
import com.kms.katalon.core.mobile.keyword.MobileBuiltInKeywords as Mobile
import com.kms.katalon.core.model.FailureHandling as FailureHandling
import com.kms.katalon.core.testcase.TestCase as TestCase
import com.kms.katalon.core.testdata.TestData as TestData
import com.kms.katalon.core.testobject.TestObject as TestObject
import com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords as WS
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI
import com.kms.katalon.core.windows.keyword.WindowsBuiltinKeywords as Windows
import internal.GlobalVariable as GlobalVariable
import org.openqa.selenium.Keys as Keys

WebUI.openBrowser('https://file-examples.com/index.php/text-files-and-archives-download/')

WebUI.click(findTestObject('downloadCsvFileButton'))

​

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Answer 1

对于Chrome，项目设置中所需功能的默认设置可以正常工作，但对于Firefox，我必须做一些变通工作。

所以，我发现这个主题https://forum.katalon.com/t/opening-firefox-with-a-specific-non-anonymous-profile/12012/15和@kazurayam的回复帮助我创建了一个初始化WebDriver的脚本，我在每个测试用例之前调用它：

import org.openqa.selenium.WebDriver
import org.openqa.selenium.firefox.FirefoxDriver
import org.openqa.selenium.firefox.FirefoxOptions
import org.openqa.selenium.firefox.FirefoxProfile
import org.openqa.selenium.firefox.ProfilesIni
import static com.kms.katalon.core.testobject.ObjectRepository.findTestObject
import com.kms.katalon.core.webui.driver.DriverFactory
import com.kms.katalon.core.webui.driver.WebUIDriverType
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI
import internal.GlobalVariable as GlobalVariable

WebUIDriverType executedBrowser = DriverFactory.getExecutedBrowser()
switch(executedBrowser) {
    case WebUIDriverType.FIREFOX_DRIVER:          // "Firefox"
        System.setProperty('webdriver.gecko.driver', DriverFactory.getGeckoDriverPath())
        FirefoxOptions options = new FirefoxOptions()

        options.addPreference('marionette', true)
        options.addPreference('browser.download.folderList', 2)
        options.addPreference('browser.helperApps.alwaysAsk.force', false)
        options.addPreference('browser.download.manager.showWhenStarting', false)
        options.addPreference('browser.download.dir', GlobalVariable.downloadPath)
        options.addPreference('browser.download.downloadDir', GlobalVariable.downloadPath)
        options.addPreference('browser.download.defaultFolder', GlobalVariable.downloadPath)
        options.addPreference('browser.helperApps.neverAsk.saveToDisk', 'application/download, application/octet-stream, text/csv')

        WebDriver driver = new FirefoxDriver(options);
        // let Katalon Studio to use the WebDriver created here
        DriverFactory.changeWebDriver(driver)
        break
    default:
        WebUI.openBrowser('')
}

请注意，如果您想下载不同的文件类型，您必须在“browser.helperApps.neverAsk.saveToDisk”首选项中指定所有必需的MIME类型。可以在以下位置找到MIME类型的列表：https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Complete_list_of_MIME_types

此外，如果文件是PDF，则必须再添加一个首选项：

options.addPreference('pdfjs.disabled', true)