Headless Browser testing using tape-run

[ccpandhare]

This PR adds headless browser testing to Image Sequencer.

There are three files in the test/ folder.
Out of these three, two JS files run perfectly in the headless browser test. But one doesn't. That file is test/image-manip.js Hence I have not included that file here. Can you help me? I tried a lot, but I couldn't realize why this may be failing.

Shell command to test the file:

$ browserify test/image-manip.js | tape-run

These are the tests that file contains:

var sequencer = ImageSequencer({ ui: "none" });
var image = "SOME DataURI";
sequencer.loadImages(image);

sequencer.addSteps(['do-nothing-pix','invert','invert']);
sequencer.run();

test("Inverted image isn't identical", function (t) {
  t.notEqual(sequencer.images.image1.steps[1].output.src, sequencer.images.image1.steps[2].output.src);
  t.end();
});

test("Twice inverted image is identical to original image", function (t) {
  t.equal(sequencer.images.image1.steps[1].output.src, sequencer.images.image1.steps[3].output.src);
  t.end();
});

[ccpandhare]

This fixes #38

[jywarren]

Wow, cool, so this runs the entire suite in both Node and PhantomJS?

If it fails in one or the other, does it indicate whether if failed in one or the other? Maybe we just need a little more labeling in the tests?

I think there are some libs to make tape output a bit more readable, it could be worth a search around. Or just log out some notes like "Starting/ending phantomjs in-browser tests" and such. You could intersperse with ##################### to delineate a bit more too.

:-)

[ccpandhare]

Okay I will have a look at those modules.

First, the normal Node based tape test is run. (ALL TESTS)
Then, tape-run is run. (ALL TESTS)
Both these are triggered by the $ npm test command.

We can easily make out where the test is failing -- Node, or Browser.

What tape-run does: It runs the tests separately in Electron and outputs standard TAP output, just like tape.

[ccpandhare]

Changes

• I have added descriptions for each test.
• I have added tap-spec module for beautification

[ccpandhare]

So is this good? What do you think?

[jywarren]

yep! merge!