jugglinmike / bingo

Standards Testing

Part I - Interpreting specifications and tests

The test262 directory contains a subset of the Test262 test suite. Specifically: it only contains tests for the built-in method Array.prototype.reduce.

The src directory contains a single JavaScript file. This file is used by the tests to define a custom implementation of Array.prototype.reduce.

Setup

1. Install git and Node.js

2. Clone this repository

3. Install the Node.js dependencies by running the following command in a terminal in the root of this project:

   npm install
   

Instruction

Edit the source file to define the method according to this specification document such that the tests pass. To run the tests, execute the following command from the root of this project:

npm test

Remember that writing specifications is hard work, and so is writing tests! Both the test files and the specification may be incorrect. To get the tests to pass, you may have to correct errors in the test logic, and your implementation may diverge from the specification. Be sure to have a justification for these corrections.

Part II - Contributing tests

As of Tuesday, July 4, 2017, the "real" Test262 project was missing tests for the built-in value Symbol.asyncIterator. We don't tolerate missing coverage!

Setup

1. Install git

2. Clone the official Test262 repository by running the following command in a terminal:

   git clone [e-mail]:tc39/test262.git
   

3. Check out the problematic commit by running the following command from the root of the Test262 project:

   git checkout 'master@{2017-07-04}'
   

Instruction

Determine where tests for the Symbol.asyncIterator value belong in the Test262 directory structure. Use ECMA262 (the official language specification) (and any existing tests) to determine exactly what needs to be tested, and write the tests! The Test262 contribution guidelines have useful information on the practical details of writing tests.