Concept Of MochaJS And ChaiJS In Selenium
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What Is Mocha And Chai ?
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Mocha is a javascript test framework that runs tests on NodeJS and in the browser.It provides a modular way to write a structured code for testing the applications by classifying them into test suites and test cases modules for execution and produces a precise test report.
To enhance code reusability Mocha provides some kinds of hooks (before,after,beforeEach,afterEach,beforeAll,afterAll).
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It comes in the form of a Node package via 'npm' supporting a set of JavaScript assertion libraries.
Mocha is compatible for Chai which is an assertion library.
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Mocha has two modes for running tests,either by command line(CLI) or programmatically(Mocha API).But we will be further focusing on CLI method.
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How to Install and Setup Mocha-Chai ?
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Prerequisites :​​
Install Selenium JavaScript setup on an editor => Follow Guide
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Installing Mocha-Chai Via NPM
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Open VS code,go to the File,click on Open folder.
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Now browse to that project folder where setup has done for selenium javascript(In my case it's SeleniumJS.) to open it in editor.
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Open terminal in the editor.
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Navigate to the project folder directory using 'cd' command.
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To install mocha-chai,run command : 'npm install mocha chai'.
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Wait for the installation.
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Once installed,the package.json file would be updtaed with newly added dependencies which are for mocha and chai.
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Also,mocha and chai libraries would be added in .bin folder of package node_modules.
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Now mocha-chai setup has been done.
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Refer next page Selenium Test In Mocha-Chai Framework
