1 require("../env");

     2 require("../../d3");

     3 require("../../d3.time");

     4 

     5 var vows = require("vows"),

     6     assert = require("assert");

     7 

     8 var suite = vows.describe("d3.time.hour");

     9 

    10 suite.addBatch({

    11   "hour": {

    12     topic: function() {

    13       return d3.time.hour;

    14     },

    15     "returns hours": function(floor) {

    16       assert.deepEqual(floor(local(2010, 11, 31, 23, 59)), local(2010, 11, 31, 23));

    17       assert.deepEqual(floor(local(2011, 0, 1, 0, 0)), local(2011, 0, 1, 0));

    18       assert.deepEqual(floor(local(2011, 0, 1, 0, 1)), local(2011, 0, 1, 0));

    19     },

    20     "observes start of daylight savings time": function(floor) {

    21       assert.deepEqual(floor(utc(2011, 2, 13, 8, 59)), utc(2011, 2, 13, 8));

    22       assert.deepEqual(floor(utc(2011, 2, 13, 9, 0)), utc(2011, 2, 13, 9));

    23       assert.deepEqual(floor(utc(2011, 2, 13, 9, 1)), utc(2011, 2, 13, 9));

    24       assert.deepEqual(floor(utc(2011, 2, 13, 9, 59)), utc(2011, 2, 13, 9));

    25       assert.deepEqual(floor(utc(2011, 2, 13, 10, 0)), utc(2011, 2, 13, 10));

    26       assert.deepEqual(floor(utc(2011, 2, 13, 10, 1)), utc(2011, 2, 13, 10));

    27     },

    28     "observes end of daylight savings time": function(floor) {

    29       assert.deepEqual(floor(utc(2011, 10, 6, 7, 59)), utc(2011, 10, 6, 7));

    30       assert.deepEqual(floor(utc(2011, 10, 6, 8, 0)), utc(2011, 10, 6, 8));

    31       assert.deepEqual(floor(utc(2011, 10, 6, 8, 1)), utc(2011, 10, 6, 8));

    32       assert.deepEqual(floor(utc(2011, 10, 6, 8, 59)), utc(2011, 10, 6, 8));

    33       assert.deepEqual(floor(utc(2011, 10, 6, 9, 0)), utc(2011, 10, 6, 9));

    34       assert.deepEqual(floor(utc(2011, 10, 6, 9, 1)), utc(2011, 10, 6, 9));

    35     },

    36     "NPT": {

    37       "observes 15-minute offset": tz("Asia/Kathmandu", function(floor) {

    38         assert.deepEqual(floor(local(2010, 11, 31, 23, 59, 59)), utc(2010, 11, 31, 17, 15));

    39         assert.deepEqual(floor(local(2011, 0, 1, 0, 0, 0)), utc(2010, 11, 31, 18, 15));

    40         assert.deepEqual(floor(local(2011, 0, 1, 0, 0, 1)), utc(2010, 11, 31, 18, 15));

    41       })

    42     },

    43     "IST": {

    44       "observes 30-minute offset": tz("Asia/Calcutta", function(floor) {

    45         assert.deepEqual(floor(local(2010, 11, 31, 23, 59, 59)), utc(2010, 11, 31, 17, 30));

    46         assert.deepEqual(floor(local(2011, 0, 1, 0, 0, 0)), utc(2010, 11, 31, 18, 30));

    47         assert.deepEqual(floor(local(2011, 0, 1, 0, 0, 1)), utc(2010, 11, 31, 18, 30));

    48       })

    49     },

    50     "UTC": {

    51       topic: function(floor) {

    52         return floor.utc;

    53       },

    54       "returns hours": function(floor) {

    55         assert.deepEqual(floor(utc(2010, 11, 31, 23, 59)), utc(2010, 11, 31, 23));

    56         assert.deepEqual(floor(utc(2011, 0, 1, 0, 0)), utc(2011, 0, 1, 0));

    57         assert.deepEqual(floor(utc(2011, 0, 1, 0, 1)), utc(2011, 0, 1, 0));

    58       },

    59       "does not observe the start of daylight savings time": function(floor) {

    60         assert.deepEqual(floor(utc(2011, 2, 13, 8, 59)), utc(2011, 2, 13, 8));

    61         assert.deepEqual(floor(utc(2011, 2, 13, 9, 0)), utc(2011, 2, 13, 9));

    62         assert.deepEqual(floor(utc(2011, 2, 13, 9, 1)), utc(2011, 2, 13, 9));

    63         assert.deepEqual(floor(utc(2011, 2, 13, 9, 59)), utc(2011, 2, 13, 9));

    64         assert.deepEqual(floor(utc(2011, 2, 13, 10, 0)), utc(2011, 2, 13, 10));

    65         assert.deepEqual(floor(utc(2011, 2, 13, 10, 1)), utc(2011, 2, 13, 10));

    66       },

    67       "does not observe the end of daylight savings time": function(floor) {

    68         assert.deepEqual(floor(utc(2011, 10, 6, 7, 59)), utc(2011, 10, 6, 7));

    69         assert.deepEqual(floor(utc(2011, 10, 6, 8, 0)), utc(2011, 10, 6, 8));

    70         assert.deepEqual(floor(utc(2011, 10, 6, 8, 1)), utc(2011, 10, 6, 8));

    71         assert.deepEqual(floor(utc(2011, 10, 6, 8, 59)), utc(2011, 10, 6, 8));

    72         assert.deepEqual(floor(utc(2011, 10, 6, 9, 0)), utc(2011, 10, 6, 9));

    73         assert.deepEqual(floor(utc(2011, 10, 6, 9, 1)), utc(2011, 10, 6, 9));

    74       }

    75     }

    76   }

    77 });

    78 

    79 function local(year, month, day, hours, minutes, seconds) {

    80   return new Date(year, month, day, hours || 0, minutes || 0, seconds || 0);

    81 }

    82 

    83 function utc(year, month, day, hours, minutes, seconds) {

    84   return new Date(Date.UTC(year, month, day, hours || 0, minutes || 0, seconds || 0));

    85 }

    86 

    87 function tz(tz, scope) {

    88   return function() {

    89     var o = process.env.TZ;

    90     try {

    91       process.env.TZ = tz;

    92       new Date(0).toString(); // invalidate node's dst cache

    93       new Date().toString();

    94       scope.apply(this, arguments);

    95     } finally {

    96       process.env.TZ = o;

    97       new Date(0).toString(); // invalidate node's dst cache

    98       new Date().toString();

    99     }

   100   };

   101 }

   102 

   103 suite.export(module);