Guide to use onflow flow-js-testing framework

Hi Friends 👋,

Welcome To Infinitbility! ❤️

To use flow-js-testing and run test cases of cadence smart contract, You have to install node.js, flow CLI after you able to run your test cases in flow emulator using npm run test command.

Note: Here, we are running kitty-items test cases For NFT cadence smart contract

Today, I’m going to show How do I run test cases of cadence smart contract using flow js testing, here I will use onflow kitty items repo https://github.com/onflow/kitty-items.

Let’s start the today’s tutorial How do you run test cases of cadence smart contract using flow js testing?

Prerequisite

1. Node ( greater then 12.0 version ) - https://nodejs.org/en/
2. Git bash ( To clone repos ) - https://git-scm.com/downloads

Installation

To run test case on flow emulator we to install Flow CLI on out Machine.

• For MAC OS and Linux

This installation method only works on x86-64.

This script downloads and installs the appropriate binary for your system:

sh -ci "$(curl -fsSL https://storage.googleapis.com/flow-cli/install.sh)"

• For Windows

This installation method only works on Windows 10, 8.1, or 7 (SP1, with PowerShell 3.0), on x86-64.

1. Open PowerShell (Instructions)
2. In PowerShell, run:

iex "& { $(irm 'https://storage.googleapis.com/flow-cli/install.ps1') }"

To update, simply re-run the installation command above.

Clone kitty-items and run test cases

1. To clone kitty-itmes repo open git bash in your desired folder and run below command

   git clone https://github.com/onflow/kitty-items.git
   

2. After that, go to cadence tests folder

   cd kitty-items\cadence\tests
   

3. Install NPM dependancies using npm install command.

   npm install
   

4. To run the testcase of kitty items run the below command

   npm run test
   

Note: Here, i have changes test case per our Smart contarct requirement

I hope it’s help you, All the best 👍.