[GSoC17] Unit tests + travis-ci.org build

[nemesifier]

Unit tests are currently missing.

It would be good to have javascript based tests of the main features and an automated travis build.

The main features are:

• ensure NetJSON Graph is converted correctly
• ensure the right number of nodes is created
• ensure the right number of links is created
• ensure metadata overlay is displayed correctly
• ensure information overlay is displayed when clicking on nodes
• ensure information overlay is displayed when clicking on links

[nemesifier]

@ralphtheninja suggests https://github.com/substack/tape :+1:

[ralphtheninja]

I'd try to break apart the functionality as much as possible and put into separate files for easier testing and then have a main file, e.g. index.js that pulls in the different parts.

[nemesifier]

@geekplux can you work on this next please?

[geekplux]

yep, next step we should add the test and CI

[nemesifier]

What's the status of this issue?

[geekplux]

done