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

Office Open XML Generator using Node.js streams. Supporting Microsoft Office 2007 and later Word (docx), PowerPoint (pptx,ppsx) and Excel (xlsx). This module is for all frameworks and environments. No need for any commandline tool - this module is doing e

//======================================================================================================================
// 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);
    })
  })
});