Embarking on your journey to learn automation testing? You're in the right place! The Robot Framework, an open-source automation testing framework, is a powerful tool that can significantly boost your productivity. In this beginner's guide, we'll explore the fundamentals of Robot Framework, from installation to creating and running your first test suite. Let's dive right in!
Robot Framework is municipalities flexible and user-friendly compared to other automation testing tools. It introduces a tabular syntax and uses plain text files for writing test cases, making it easy to read, write, and maintain. Plus, it supports external libraries and plugins, allowing you to extend its capabilities according to your project's needs.
Setting Up Robot Framework
Before you get started, ensure you have Python 2.7, 3.5, or 3.6 installed on your system. You can download the latest version of Robot Framework from their official site, here.
Once downloaded, extract the contents of the archive, and navigate to the extracted directory. In the command line, type the following command to verify the installation:
``` robot --version ```
Installing Required Libraries
For this tutorial, we'll be using the built-in Keyword library. To use it, type the following command in your command line:
``` pip install robotframework-keywordlibrary ```
Running Your First Test
Now that you've installed the required libraries, let's create and run your first test. Create a new text file and name it Hello.robot. Inside the file, paste the following content:
``` *** Settings *** Library KeywordLibrary Resource ./keywords *** Keywords *** Hello World Log Hello World *** Test Cases *** Test Hello Hello World ```
Save the file and run it using the following command:
``` robot Hello.robot ```
You should see the message "Hello World" printed in the console, indicating that your first test case was successful!
Understanding Robot Framework's Structure
Now that you've run your first test, let's understand the structure of a Robot Framework test suite.
The test suite is composed of three main sections: Settings, Resources, and Test Cases. In the Settings section, you configure libraries and resources. The Resources section points to external files containing keywords (reusable test steps), and the Test Cases section houses your test cases.
Keywords - The Building Blocks of Tests
Keywords are reusable test steps that can be combined to create powerful test cases. They can perform various actions like clicking buttons, filling forms, or navigating through web pages. In your earlier example, the keyword 'Hello World' was created to display the message "Hello World" in the console.
Writing Your First Custom Keyword
Let's create a custom keyword to add two numbers. Create a new text file named Math.robot and paste the following content:
``` *** Keywords *** Add Two Numbers &{sum} expire arg1 + arg2 Return ${sum} Add Three Numbers &{sum} expire arg1 + arg2 + arg3 Return ${sum} ```
In this example, we've created two custom keywords, 'Add Two Numbers' and 'Add Three Numbers', which perform addition using the variables 'arg1', 'arg2', and 'arg3'.
To use these keywords in a test case, create a new file named MathTest.robot and add the following content:
``` *** Settings *** Library Math *** Test Cases *** Testing Addition ${result1} Add Two Numbers 2 3 Should Be Equal As Integers ${result1} 5 ${result2} Add Three Numbers 1 2 3 Should Be Equal As Integers ${result2} 6 ```
When you run this test case, it should pass, confirming that your custom keywords are working correctly.
Executing Tests Using Command Line Arguments
Robot Framework allows you to execute tests using command line arguments. You can pass in the test case name, selected by using the -i or --include argument. For example:
``` robot -i Test Hello.robot ```
This command will run only the 'Test Hello' test case in the Hello.robot file.
To run multiple test suites, you can pass the file paths as arguments:
``` robot SuiteOne.robot SuiteTwo.robot ```
Running Tests in Parallel
Robot Framework also supports running tests in parallel, which can significantly speed up your test execution. To do so, use the -P or --processes argument, followed by the number of processes you want to run:
``` robot -P 3 SuiteOne.robot SuiteTwo.robot ```
In this example, Robot Framework will run three instances of the 'robot' process to execute the test suites simultaneously.
Automation testing can be a complex and daunting task, but with Robot Framework, you're well on your way to mastering it! Keep exploring and expand your knowledge by exploring more libraries and plugins. Happy testing!