grib-js/test/gfs.js

Full JavaScript GRIB2 parser

var assert = require('assert');
var grib = require('../index');
var files = require('./lib/fixtures').files;
const loadData = require('../load-data');

describe('sample file gfs.grb', function() {
  var msgs = null;

  beforeEach(function(done) {
    msgs = null;
    loadData(files['gfs.grb'].url, function(err, data) {
      if(err) return done(err);
      grib.readData(data, function(err, msgs_) {
        if(err) return done(err);
        msgs = msgs_;
        done();
      });
    });
  });

  it('should have 308 records', function() { assert.strictEqual(msgs.length, 308); });

  it('should have one or two fields per record', function() {
    var msg;
    for(var idx in msgs) {
      msg = msgs[idx];
      assert.ok((msg.fields.length == 1) || (msg.fields.length == 2));
    }
  });
});