Testing Tutorials and Insights

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Generating Test Credit Card Numbers, Fast!

Generating test Credit Card Numbers or Tokens for testing
Generating Test Credit Card Numbers, Fast!

Bringing Behavior-Driven Development to XCode

As a former Ruby on Rails developer, anything I stumble upon that can give me a ride on the nostalgia train with what I’m currently working on will definitely grab my attention. All joking aside,...
Bringing Behavior-Driven Development to XCode

TDD - A Poem

Reminiscing about Test Driven Development

Minified React error #56 in React Unit Tests Fix

This can be applied to any lib you're using (mocha, jest, whatever). I use mocha as Jest claims to give stuff mocha doesn't but it's BS.

Testing Express APIs with Supertest

In this quick tutorial, you'll learn how to test your Express APIs with Supertest.

Effective Debugging, with Python and Print Statements

What should you do if your code doesn't work? Here's a tutorial to teach you how to debug effectively with Python and Print Statements.
Effective Debugging, with Python and Print Statements

7 Steps to Debug Efficiently and Effectively

5-star Codementor Matt Goldspink has helped many Codementor clients debug and fix their code. In this article, Matt shares his tips on how to debug efficiently based on his 15 years of coding experience.
7 Steps to Debug Efficiently and Effectively

JavaScript Testing Framework Comparison: Jasmine vs Mocha

This post is a quick overview of the differences between two popular JavaScript testing frameworks: Jasmine 2 and Mocha. We also discuss commonly used libraries, Chai and Sinon, that are often used in conjunction with Jasmine and Mocha.

Acceptance Testing in JavaScript with Cucumber.js & WebdriverIO

When it comes to testing your JS code, it is of utmost importance that you include acceptance tests apart from unit tests. Here we will discuss how to setup Cucumber.js with WebdriverIO to accomplish this important task.
Acceptance Testing in JavaScript with Cucumber.js & WebdriverIO

DOM Testing React Applications with Jest

In this post, we will look at installing Jest and getting started with DOM testing a React application.
DOM Testing React Applications with Jest

Generating Test Data With FactoryGirl

While testing Rails applications, you often need sample data to try out features in your app. The general flow is to create some data, perform operations on them, then make assertions about the data or...

Testing your API with Postman

I'm sure you already know the famous tool call Postman. This is a super useful tool for test your API and looks at the response you get from your server.
Testing your API with Postman

Android Testing Options

An introduction to testing in Android
Android Testing Options

Faking History for react-router v3, v4 and react-router-redux

Example dummy test doubles for react-router history, v3 & v4.
Faking History for react-router v3, v4 and react-router-redux

Tests as tools

How do you decide what kinds of tests to write, or whether to test at all? This article recommends a "tool-based" approach: cherry-picking the best kind of test for your case.
Tests as tools

Unit tests: an introduction

A short introduction to unit testing in Java.
Unit tests: an introduction

ReactJS - Use a Custom Dummy Instead of nock When Possible

How to isolate React connected containers without needing to nock.
ReactJS - Use a Custom Dummy Instead of nock When Possible

Test-Driven Workflow in Two Easy Steps

Struggling to get started with Test-Driven Development? Learn how to get started from scratch in two easy steps!
Test-Driven Workflow in Two Easy Steps

My Logging Practices

Read about the importance of logs, the different types of bad logs, and how to test and write your logs to benefit your Ops team and fellow developers.
My Logging Practices

Unexpected Token Errors Related to CSS with Mocha tests


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