test
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/* Mocha test to use: npm install mocha mocha <filename> or npm test */ var assert = require('assert'); var tzwhere = require('../lib/index'); var util = require('util'); tzwhere.init(); var whiteHouse = {'lat': 38.897663, 'lng': -77.036562}; describe('Readme example', function () { it('should properly determine the timezone of the White House', function (done) { // This test will also test the callback for those who prefer the async flow. tzwhere.tzNameAt(whiteHouse['lat'], whiteHouse['lng'], function (error, result) { if (error) { return done(error); } console.log(result); assert(result === 'America/New_York'); return done(); }); }); it('should properly determine the UTC offset of the White House\'s timezone', function (done) { var offset = tzwhere.tzOffsetAt(whiteHouse['lat'], whiteHouse['lng']); console.log(offset); // TODO determine which is correct based on the current state of DST in Eastern time. assert(offset === -14400000 || offset === -18000000); return done(); }); it('should properly determine the times on either side of daylight savings', function (done) { // Warning, JS Date has zero-indexed months. var before2 = tzwhere.dateAt(whiteHouse['lat'], whiteHouse['lng'], 2012, 02, 10, 0, 0, 0, 0); console.log(before2.toString()); var before = tzwhere.dateAt(whiteHouse['lat'], whiteHouse['lng'], 2012, 02, 11, 0, 0, 0, 0); console.log(before.toString()); var after = tzwhere.dateAt(whiteHouse['lat'], whiteHouse['lng'], 2012, 02, 12, 0, 0, 0, 0); console.log(after.toString()); var after2 = tzwhere.dateAt(whiteHouse['lat'], whiteHouse['lng'], 2012, 02, 13, 0, 0, 0, 0); console.log(after2.toString()); assert((before - before2) === (after2 - after)); assert((after - before) < (before - before2)); assert(((after - before) / 23) === ((after2 - after) / 24)); return done(); }); after(function () { console.log(util.inspect(process.memoryUsage())); }); });