officegen-dbb/test/test-pptx-charts.js

Modification of Ziv Barber's officegen, to provide a reasonable way to have line breaks in table cells.

//======================================================================================================================
// TEST SUITE FOR OFFICEGEN
// This generates small individual files that test specific aspects of the API
// and compares them to reference files.
//
// The comparison is based on string comparisons of specified XML subdocuments.
// Comparing PPTX files for exact-bytewise equality fails because the doc properties include the creation date.
// This method tests a defined set of XML subdocuments for string equality.
//======================================================================================================================

var assert = require('assert');
var officegen = require('../');
var fs = require('fs');
var chartsData = require('../test_files/charts-data.js');
var path = require('path');


var OUTDIR = path.join(__dirname, './../tmp/');
 

var AdmZip = require('adm-zip');


var pptxEquivalent = function (path1, path2, subdocs) {
  var left = new AdmZip(path1);
  var right = new AdmZip(path2);
  for (var i = 0; i < subdocs.length; i++) {
    //console.log([subdocs[i], left.readAsText(subdocs[i]).length,right.readAsText(subdocs[i]).length])
    if (left.readAsText(subdocs[i]) != right.readAsText(subdocs[i])) return false;
  }
  return true;
}

// Common error method
var onError = function (err) {
  console.log(err);
  assert(false);
  done()
};


describe("PPTX generator", function () {
  this.slow(1000);

  it("creates a slides with charts", function (done) {

    var pptx = officegen({ type: 'pptx', tempDir: OUTDIR});
    pptx.on('error', onError);

    pptx.setDocTitle('Sample PPTX Document');
    var slide = pptx.makeNewSlide();

    var rows = [];
    for (var i = 0; i < 12; i++) {
      var row = [];
      for (var j = 0; j < 5; j++) {
        row.push("[" + i + "," + j + "]");
      }
      rows.push(row);
    }
    slide.addTable(rows, {});


    var FILENAME = "test-ppt-table-1.pptx";
    var out = fs.createWriteStream(OUTDIR + FILENAME);
    pptx.generate(out);
    out.on('close', function () {
      done();
    });
  });

  chartsData.forEach(function (chartInfo, chartIdx) {
    it("creates a presentation with charts >>" + chartInfo.renderType, function (done) {
      var officegen = require('../');
      var pptx = officegen({ type: 'pptx', tempDir:OUTDIR });
      pptx.on('error', onError);

      pptx.setDocTitle('Sample PPTX Document');
      var slide = pptx.makeNewSlide();
      slide.name = 'OfficeChart slide';
      slide.back = 'ffffff';

      slide.addChart(
        chartInfo,
        function () {

          var FILENAME = "test-ppt-chart-"+chartIdx +"-" + chartInfo.renderType+".pptx";
          var out = fs.createWriteStream(OUTDIR + FILENAME);
          pptx.generate(out);
          out.on('close', function () {
            done();
          });
        }, onError);
    })
  })
});