如何设置 Firefox 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 URL 并单击按钮下载文件。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 Desired Capabilities，但没有成功。当我尝试下载文件时出现提示，但文件未下载。如何禁用提示并立即下载文件？

软件版本、源码及截图如下。

Windows10、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'))

Answer 1

对于 Chrome，项目设置中 Desired Capabilities 的默认设置工作正常，但对于 Firefox，我必须采取一些解决方法才能使其工作。

所以，我找到了这个主题 https://forum.katalon.com/t/opening-firefox-with-a-specific-non-anonymous-profile/12012/15 并且@kazurayam 的回复帮助我创建了一个脚本来初始化我在每个测试用例之前调用的 WebDriver：

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。可以在此处找到 MIME 类型列表： 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，您必须再添加一项首选项：

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

如何设置 Firefox 在 Katalon 测试执行期间不提示下载文件？

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