dotnet/test/common/DownloadsTest.cs

// <copyright file="DownloadsTest.cs" company="Selenium Committers">
// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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using NUnit.Framework;
using OpenQA.Selenium.Environment;
using OpenQA.Selenium.Remote;
using OpenQA.Selenium.Support.UI;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace OpenQA.Selenium;

[TestFixture]
public class DownLoadsTest : DriverTestFixture
{
    private IWebDriver localDriver;

    [SetUp]
    public void ResetDriver()
    {
        EnvironmentManager.Instance.CloseCurrentDriver();
        InitLocalDriver();
    }

    [TearDown]
    public void QuitAdditionalDriver()
    {
        if (localDriver != null)
        {
            localDriver.Quit();
            localDriver = null;
        }

        EnvironmentManager.Instance.CreateFreshDriver();
    }

    [Test]
    [Ignore("Needs to run with Remote WebDriver")]
    public void CanListDownloadableFiles()
    {
        DownloadWithBrowser();

        IReadOnlyList<string> names = ((RemoteWebDriver)driver).GetDownloadableFiles();
        Assert.That(names, Contains.Item("file_1.txt"));
        Assert.That(names, Contains.Item("file_2.jpg"));
    }

    [Test]
    [Ignore("Needs to run with Remote WebDriver")]
    public void CanDownloadFile()
    {
        DownloadWithBrowser();

        IReadOnlyList<string> names = ((RemoteWebDriver)driver).GetDownloadableFiles();
        string fileName = names[0];
        string targetDirectory = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());

        ((RemoteWebDriver)driver).DownloadFile(fileName, targetDirectory);

        string fileContent = File.ReadAllText(Path.Combine(targetDirectory, fileName));
        Assert.That(fileContent.Trim(), Is.EqualTo("Hello, World!"));

        Directory.Delete(targetDirectory, recursive: true);
    }

    [Test]
    [Ignore("Needs to run with Remote WebDriver")]
    public void CanDeleteFiles()
    {
        DownloadWithBrowser();

        ((RemoteWebDriver)driver).DeleteDownloadableFiles();

        IReadOnlyList<string> names = ((RemoteWebDriver)driver).GetDownloadableFiles();
        Assert.That(names, Is.Empty, "The names list should be empty.");
    }

    private void DownloadWithBrowser()
    {
        string downloadPage = EnvironmentManager.Instance.UrlBuilder.WhereIs("downloads/download.html");
        localDriver.Url = downloadPage;
        driver.FindElement(By.Id("file-1")).Click();
        driver.FindElement(By.Id("file-2")).Click();

        WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(3));
        wait.Until(d => ((RemoteWebDriver)d).GetDownloadableFiles().Contains("file_2.jpg"));
    }

    private void InitLocalDriver()
    {
        DownloadableFilesOptions options = new DownloadableFilesOptions();
        options.EnableDownloads = true;

        localDriver = EnvironmentManager.Instance.CreateDriverInstance(options);
    }

    public class DownloadableFilesOptions : DriverOptions
    {
        public override void AddAdditionalOption(string capabilityName, object capabilityValue)
        {
        }

        public override ICapabilities ToCapabilities()
        {
            return null;
        }
    }
}