series.js/test/series_time_test.coffee

Time Series utilities

expect = require('chai').expect
Series = require '../src/series.coffee'

describe 'series', ->
  describe 'time interval methods', ->
    testDate = new Date(2013, 5, 24, 3, 45, 23)
    samples =
      'minute': new Date(2013, 5, 24, 3, 45,  0)
      'hour':   new Date(2013, 5, 24, 3,  0,  0)
      'day':    new Date(2013, 5, 24, 0,  0,  0)
      'week':   new Date(2013, 5, 23, 0,  0,  0)
      'month':  new Date(2013, 5,  1, 0,  0,  0)
      'year':   new Date(2013, 0,  1, 0,  0,  0)

    for method, answer of samples
      do (method, answer)->
        it "time interval #{method}", ->
          expect(Series[method](testDate)).to.be.deep.eql answer

  describe 'time format methods', ->
    describe "normal data", ->
      testDate = new Date(2013, 7, 20, 14, 45, 23, 128)
      samples =
        '%a': 'Tue'
        '%A': 'Tuesday'
        '%b': 'Aug'
        '%B': 'August'
        '%c': 'Tue Aug 20 14:45:23 2013'
        '%d': '20'
        '%e': '20'
        '%H': '14'
        '%I': '02'
        '%j': '232'
        '%L': '128'
        '%m': '08'
        '%M': '45'
        '%p': 'PM'
        '%S': '23'
        '%w': '2'
        '%x': '08/20/2013'
        '%X': '14:45:23'
        '%y': '13'
        '%Y': '2013'
        # '%Z': '-540'
        '%%': '%'
        '%Y-%m-%d': '2013-08-20'
        '%Y/%m/%d': '2013/08/20'
        '%H %M %S': '14 45 23'
        '%%%H': '%14'

      for f, answer of samples
        do (f, answer)->
          it "format(#{f})", ->
            format = Series.format(f)
            expect(format(testDate)).to.be.eql answer

    describe "invalid date", ->
      format = Series.format("%Y-%m-%d")
      it "string", ->
        expect(format("2014-05-02")).to.be.eql undefined
      it "string", ->
        expect(format(new Date("2014-05-02a"))).to.be.eql undefined