Download and verify a PDF

Click a download link, wait for the file to land, and assert it's a real PDF. DownloadManager polls the download directory and ignores partial (.crdownload) files until they're complete — no Thread.sleep().

InvoiceTest.java

import com.seleniumboot.browser.DownloadManager;
import com.seleniumboot.test.BaseTest;
import java.io.File;
import org.openqa.selenium.By;
import org.testng.Assert;
import org.testng.annotations.Test;

public class InvoiceTest extends BaseTest {

    @Test
    public void downloadsInvoicePdf() {
        open("/invoices/123");
        $("#download-pdf").click();

        // Dynamic filename (timestamped) → wait for any file, up to 15s:
        File pdf = DownloadManager.waitForAnyFile(15);

        Assert.assertTrue(pdf.getName().endsWith(".pdf"));
        Assert.assertTrue(pdf.length() > 0);   // non-empty
    }
}

Known filename? Wait for it by name instead:

File pdf = DownloadManager.waitForFile("invoice-123.pdf", 15);

Set the download directory in config (defaults to ./target/downloads):

selenium-boot.yml

browser:
  downloadDir: ./target/downloads

Clean state between tests

Call DownloadManager.clearDownloads() in @BeforeMethod so a stale file from a previous run can't satisfy the wait.

Deeper reference: DownloadManager — waiting strategies, partial-download handling, and cleanup.