Selenium 面试题与答案

问题 6. What are the different components of Selenium?

Selenium is not just a single tool but a suite of software's, each having a different approach to support automation testing. It comprises of four major components which include:

1. Selenium Integrated Development Environment (IDE)
2. Selenium Remote Control (Now Deprecated)
3. WebDriver
4. Selenium Grid

问题 7. List out the names of programming languages, browsers and operating systems that are supported by Selenium.

Selenium supports various operating systems, browsers and programming languages. Following is the list:

• Programming Languages: C#, Java, Python, PHP, Ruby, Perl, JavaScript.
• Operating Systems: Android, iOS, Windows, Linux, Mac, Solaris.
• Browsers: Google Chrome, Mozilla Firefox, Internet Explorer, Edge, Opera, Safari, etc.

问题 8. What are the significant changes/upgrades in various Selenium versions?

Selenium v1.0:

• Version 1.0 was the initial release of Selenium.
• It included three tools: Selenium IDE, Selenium RC, and Selenium Grid.

Selenium v2.0:

• Selenium WebDriver was introduced replacing Selenium RC in version "2.0".
• With the onset of WebDriver, RC got deprecated and moved to the legacy package.

Selenium v3:

• The latest release Selenium 3 has new added features and functionalities.
• It includes Selenium IDE, Selenium WebDriver, and Selenium Grid.

问题 9. List some of the test types that are supported by Selenium.

Different types of testing's that we can achieve through Selenium are.

• Functional Testing
• Regression Testing
• Sanity Testing
• Smoke Testing
• Responsive Testing
• Cross Browser Testing
• UI testing (black box)
• Integration Testing

问题 10. What is Selenium IDE?

Selenium IDE is implemented as Firefox extension which provides record and playback functionality on test scripts. It allows testers to export recorded scripts in many languages like HTML, Java, Ruby, RSpec, Python, C#, JUnit and TestNG.

Selenium IDE has limited scope, and the generated test scripts are not very robust, and portable.