How to handle download events like playwright

[Israt-Jn]

Hi, I have a test for such scenario that I want to

• Click the download button
• It will download a file
• I need to check if the downloaded file exists in the given folder.

As for playwright, I was following this 'https://playwright.dev/docs/downloads'
How can I do the same using serenity-js.

[mateuszmalolepszy]

Bumping up question as I need to do it too and I'm clueless.

[NT-Octaipipe]

Not using that playwright approach but making the download location configurable:

In serenity.config.ts set your downloads path in the BeforeAll section:

    browser = await playwright.chromium.launch({
        headless: false,
        downloadsPath: DOWNLOAD_FOLDER,
    });

Then in your test helper object, have some methods to handle resetting the Downloads folder, trigger the download and check if the file exists:

     resetDownloadFolder: () =>
        Interaction.where(`#actor resets the download folder`, async (actor: Actor) => {
            if (fs.existsSync(DOWNLOAD_FOLDER)) {   
            await fs.rmSync(DOWNLOAD_FOLDER, { recursive: true, force: true });
            }
            await fs.mkdirSync(DOWNLOAD_FOLDER, { recursive: true });
        }),

    countDownloadedFiles: () =>
        Question.about(`the number of downloaded files`, async (actor: Actor) => {
            return await actor.answer(fs.readdirSync(DOWNLOAD_FOLDER).length);
        }),

    export: () =>
        Task.where(`#actor exports the activity log as a CSV file`,
            ActivityLog.resetDownloadFolder(),
            Dashboard.view("Activity Log"),
            Wait.until(ActivityList.exportMenu(), isVisible()),
            Click.on(ActivityList.exportMenu()),
            Click.on(ActivityList.exportButton()),  
        ),

    confirmDownload: () =>
        Task.where(`#actor confirms the downloaded activity log file`,
            Wait.upTo(Duration.ofSeconds(10))
            .until(ActivityLog.countDownloadedFiles(), isGreaterThan(0)),
        )