syntest-framework / syntest-javascript

A tool to generate synthetic tests for the JavaScript and TypeScript languages

SynTest Framework - JavaScript

The aim of this tool is make it easier for JavaScript developers to test their code in a more effective and efficient way.

A tool to generate synthetic tests for the JavaScript language

What is SynTest JavaScript?

SynTest JavaScript is a tool for automatically generating test cases for the JavaScript language. This tool is part of the SynTest Framework. This framework contains multiple tools related to the generation of synthetic tests.

Overview

The framework contains the common interfaces for the code control-flow representation, test case structure, genes, and the implementation for the meta-heuristic search algorithms.

Installation

NPM

The simplest way to use syntest javascript is by installing the following two npm packages: @syntest/cli, @syntest/javascript.

$ npm install @syntest/cli
$ npm install @syntest/javascript

You can install it in your project as shown in the snippit above or you can install the package globally by using the npm options -g.

Usage

To start you need to be in the root of the project folder containing the code you want to create test-cases for. Next, you need to install two dev-dependencies in your project, namely chai and chai-as-promised. Both are needed to run the tests.

Next, you want to run the following command:

$ npx syntest init config --modules @syntest/javascript

This will create the .syntest.json configuration file for you with some pre filled in parameters. The file should look somewhat like this:

{
  ...,
  "target-root-directory": "./express",
  "include": [
    "./express/lib/**/*.js"
  ],
  "exclude": [],
  "modules": [
    "@syntest/javascript"
  ],
  "preset": "DynaMOSA"
  ...
}

In the above example the most important configuration options are shown.

• The preset value which decides the algorithms the tool will use.
• The loaded module "@syntest/javascript".
• The target root directory which is the source directory of all the files you want to target.
• The include array where you can specify which files to target.
• The exclude array where you can specify which files to exclude specifically

Once these properties are set you can run:

$ npx syntest javascript test

If everything is correct the tool will now start. The results can be found in the syntest folder

SynTest-JavaScript is highly configurable and supports a bunch of options and arguments, all of them can be found by providing the --help option or -h for short. Another way of configuring the tool is through the .syntest.json file in the root of your project.

Documentation

For questions and help with how to use this tool, please see the documentation.

Support

For questions and help with how to use this library, please see SUPPORT.md.

Contributing

Contributions are welcome! For major changes, please open an issue first to discuss what you would like to change. For more information, please see CONTRIBUTING.md.

Authors and acknowledgment

• Annibale Panichella (PI)
• Mitchell Olsthoorn (Project Lead)
• Dimitri Stallenberg (Developer)

License

The code within this project is licensed under the Apache-2.0 license.