File upload (sendKeys to input) in Selenium Java - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the sendKeys method do when used on a file input element in Selenium?

It simulates typing the file path into the file input field, effectively selecting the file to upload without opening the file dialog.

beginner

Why can't Selenium interact with native OS file dialogs directly?

Because Selenium controls the browser, not the operating system, so it cannot automate native dialogs like file pickers.

beginner

Show a simple Java Selenium code snippet to upload a file using sendKeys.

WebElement uploadInput = driver.findElement(By.id("file-upload")); uploadInput.sendKeys("C:\\Users\\User\\Documents\\file.txt");

intermediate

What is a best practice for locating the file input element for uploading files?

Use a unique and stable locator like id or name attributes to avoid flaky tests.

intermediate

What should you verify after uploading a file using sendKeys in a test?

Verify that the file name appears in the UI or that the upload was successful by checking for confirmation messages or file presence.

Which Selenium method is used to upload a file by setting the file path directly?

A getText

B click

C sendKeys

D submit

The sendKeys method inputs the file path into the file input element to upload the file.

Why is it better to use id or name attributes to locate the file input element?

A They open the file dialog automatically

B They make the test run faster

C They allow interacting with OS dialogs

D They are usually unique and stable locators

Unique and stable locators reduce test flakiness and improve reliability.

What happens if you try to use click() on a file input element to upload a file in Selenium?

A It opens the OS file dialog, which Selenium cannot control

B It uploads the file automatically

C It throws an error

D It clears the file input

Clicking opens the OS dialog, which Selenium cannot automate, so tests may hang or fail.

What is a common assertion after uploading a file using sendKeys?

A Check that the file input is empty

B Check that the file name is displayed on the page

C Check that the browser URL changed

D Check that the page title changed

Verifying the file name confirms the file was selected successfully.

Which of the following is NOT a valid locator strategy for file input elements?

A By.osDialog

B By.name

C By.xpath

D By.id

There is no By.osDialog locator; Selenium cannot locate OS dialogs.

Explain how to upload a file in Selenium using sendKeys and why this method works.

Think about how Selenium interacts with the browser elements.

Describe best practices for verifying a file upload in an automated test.

Focus on what you can see on the web page after upload.