What types of locators did you mainly use?

The most commonly used locators in test automation are:

• ID — the most reliable and fastest locator, if the element has a unique id attribute.
• Name — used when there is no id, but a unique name.
• CSS selectors — flexible and efficient, allowing to find elements by classes, attributes, nesting.
• XPath — powerful but less performant locator, useful for complex structures and dynamic elements.
• Class Name — applied if the class is unique to the element.
• Tag Name — rarely used, when you need to find elements by tag.

Example of using a CSS selector in Selenium with Java:

WebElement button = driver.findElement(By.cssSelector("button.submit-btn"));

The choice of locator depends on the stability and uniqueness of attributes on the page.