Ghost/core/test/unit/showdown_ghostimagepreview_spec.js

/**
 * Test the ghostdown extension
 *
 * Only ever runs on the client (i.e in the editor)
 * Server processes showdown without it so there can never be an image upload form in a post.
 */

/*globals describe, it */
/*jshint expr:true*/
var should      = require('should'),

    // Stuff we are testing
    ghostimagepreview     = require('../../shared/lib/showdown/extensions/ghostimagepreview');

// To stop jshint complaining
should.equal(true, true);

describe('Ghost Image Preview showdown extension', function () {
    it('should export an array of methods for processing', function () {
        ghostimagepreview.should.be.a.function;
        ghostimagepreview().should.be.an.instanceof(Array);

        ghostimagepreview().forEach(function (processor) {
            processor.should.be.an.Object;
            processor.should.have.property('type');
            processor.should.have.property('filter');
            processor.type.should.be.a.String;
            processor.filter.should.be.a.function;
        });
    });

    it('should accurately detect images in markdown', function () {
        [
            '![]',
            '![]()',
            '![image and another,/ image]',
            '![image and another,/ image]()',
            '![image and another,/ image](http://dsurl.stuff)',
            '![](http://dsurl.stuff)'
            /* No ref-style for now
             '![][]',
             '![image and another,/ image][stuff]',
             '![][stuff]',
             '![image and another,/ image][]'
             */
        ]
            .forEach(function (imageMarkup) {
                var processedMarkup =
                    ghostimagepreview().reduce(function (prev, processor) {
                        return processor.filter(prev);
                    }, imageMarkup);

                // The image is the entire markup, so the image box should be too
                processedMarkup.should.match(/^<section.*?section>\n*$/);
            });
    });

    it('should correctly include an image', function () {
        [
            '![image and another,/ image](http://dsurl.stuff)',
            '![](http://dsurl.stuff)'
            /* No ref-style for now
             '![image and another,/ image][test]\n\n[test]: http://dsurl.stuff',
             '![][test]\n\n[test]: http://dsurl.stuff'
             */
        ]
            .forEach(function (imageMarkup) {
                var processedMarkup =
                    ghostimagepreview().reduce(function (prev, processor) {
                        return processor.filter(prev);
                    }, imageMarkup);

                processedMarkup.should.match(/<img class="js-upload-target"/);
            });
    });
});