mammoth.js/tests/zipfile.tests.js

var assert = require("assert");

var JSZip = require("jszip");

var test = require("./testing").test;
var zipfile = require("../lib/zipfile");

describe("zipfile", function() {
    test('file in zip can be read after being written', function() {
        var zip = emptyZipFile();
        assert(!zip.exists("song/title"));
        
        zip.write("song/title", "Dark Blue");
        
        assert(zip.exists("song/title"));
        return zip.read("song/title", "utf8").then(function(contents) {
            assert.equal(contents, "Dark Blue");
        });
    });
});

function emptyZipFile() {
    var zip = new JSZip();
    var buffer = zip.generate({type: "arraybuffer"});
    return zipfile.openArrayBuffer(buffer);
}