test-watcher-tdd

A lightweight un-opinionated watcher which will execute unit tests when either the test or module file changes. Test driven development is the way to go!

Setup

npm install --save-dev test-watcher-tdd

Create your test watcher config file .test-watcher-tdd.js in your project root.

// simple example for mocha (you must have mocha installed)
module.exports = {
  style: 'relative', // our test files are relatively located to the module files
  testFileSuffix: '-test', // x.js would have a test file called x-test.js
  testsDirName: '_tests', // foo/bar/x.js would have a test file foo/bar/_tests/x-test.js
  runner: 'mocha', // use the provided "mocha" runner (or your own implementation as a function)
  params: ['-R', 'spec'] // additional parameters to be included when the test is run
};

Running the watcher

As long as you have node_modules/.bin in your path

test-watcher-tdd

that's it!

Configuration Options

You can use a custom file handler (thing that associates test files with module files) but default handler is robust. Use the fileHandler option to provide your own (more details below).

• style: relative for test files relative to the module file or N/A for test files in a separate directory
• testsDirName: if relative style then the relative dir name for tests; otherwise the directory under the project root for tests
• testFilePrefix: optional prefix for test files; x.js with prefix of test- would have a test file of test-x.js
• testFileSuffix: optional suffix for test files; x.js with suffix of test- would have a test file of x-test.js
• runner: mocha or a custom implementation (more details below)
• params: array of any additional parameters for the test execution
• fileHandler: optional custom function that associates module files with unit test files (usually the default handler will suit your needs)