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1 require("../env"); |
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2 require("../../d3"); |
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3 require("../../d3.time"); |
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4 |
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5 var vows = require("vows"), |
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6 assert = require("assert"); |
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7 |
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8 var suite = vows.describe("d3.time.hours"); |
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9 |
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10 suite.addBatch({ |
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11 "hours": { |
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12 topic: function() { |
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13 return d3.time.hours; |
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14 }, |
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15 "returns hours": function(range) { |
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16 assert.deepEqual(range(local(2010, 11, 31, 12, 30), local(2010, 11, 31, 15, 30)), [ |
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17 local(2010, 11, 31, 13), |
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18 local(2010, 11, 31, 14), |
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19 local(2010, 11, 31, 15) |
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20 ]); |
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21 }, |
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22 "has an inclusive lower bound": function(range) { |
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23 assert.deepEqual(range(local(2010, 11, 31, 23), local(2011, 0, 1, 2))[0], local(2010, 11, 31, 23)); |
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24 }, |
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25 "has an exclusive upper bound": function(range) { |
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26 assert.deepEqual(range(local(2010, 11, 31, 23), local(2011, 0, 1, 2))[2], local(2011, 0, 1, 1)); |
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27 }, |
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28 "can skip hours": function(range) { |
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29 assert.deepEqual(range(local(2011, 1, 1, 1), local(2011, 1, 1, 13), 3), [ |
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30 local(2011, 1, 1, 3), |
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31 local(2011, 1, 1, 6), |
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32 local(2011, 1, 1, 9), |
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33 local(2011, 1, 1, 12) |
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34 ]); |
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35 }, |
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36 "observes start of daylight savings time": function(range) { |
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37 assert.deepEqual(range(local(2011, 2, 13, 1), local(2011, 2, 13, 5)), [ |
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38 utc(2011, 2, 13, 9), |
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39 utc(2011, 2, 13, 10), |
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40 utc(2011, 2, 13, 11) |
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41 ]); |
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42 }, |
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43 "observes end of daylight savings time": function(range) { |
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44 assert.deepEqual(range(local(2011, 10, 6, 0), local(2011, 10, 6, 2)), [ |
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45 utc(2011, 10, 6, 7), |
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46 utc(2011, 10, 6, 8), |
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47 utc(2011, 10, 6, 9) |
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48 ]); |
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49 }, |
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50 "NPT": { |
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51 "observes 15-minute offset": tz("Asia/Kathmandu", function(range) { |
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52 assert.deepEqual(range(local(2011, 10, 7, 0), local(2011, 10, 7, 3)), [ |
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53 utc(2011, 10, 6, 18, 15), |
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54 utc(2011, 10, 6, 19, 15), |
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55 utc(2011, 10, 6, 20, 15) |
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56 ]); |
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57 }) |
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58 }, |
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59 "IST": { |
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60 "observes 30-minute offset": tz("Asia/Calcutta", function(range) { |
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61 assert.deepEqual(range(local(2011, 10, 7, 0), local(2011, 10, 7, 3)), [ |
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62 utc(2011, 10, 6, 18, 30), |
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63 utc(2011, 10, 6, 19, 30), |
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64 utc(2011, 10, 6, 20, 30) |
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65 ]); |
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66 }) |
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67 }, |
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68 "UTC": { |
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69 topic: function(range) { |
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70 return range.utc; |
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71 }, |
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72 "returns hours": function(range) { |
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73 assert.deepEqual(range(utc(2010, 11, 31, 12, 30), utc(2010, 11, 31, 15, 30)), [ |
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74 utc(2010, 11, 31, 13), |
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75 utc(2010, 11, 31, 14), |
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76 utc(2010, 11, 31, 15) |
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77 ]); |
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78 }, |
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79 "has an inclusive lower bound": function(range) { |
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80 assert.deepEqual(range(utc(2010, 11, 31, 23), utc(2011, 0, 1, 2))[0], utc(2010, 11, 31, 23)); |
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81 }, |
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82 "has an exclusive upper bound": function(range) { |
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83 assert.deepEqual(range(utc(2010, 11, 31, 23), utc(2011, 0, 1, 2))[2], utc(2011, 0, 1, 1)); |
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84 }, |
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85 "can skip hours": function(range) { |
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86 assert.deepEqual(range(utc(2011, 1, 1, 1), utc(2011, 1, 1, 13), 3), [ |
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87 utc(2011, 1, 1, 3), |
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88 utc(2011, 1, 1, 6), |
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89 utc(2011, 1, 1, 9), |
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90 utc(2011, 1, 1, 12) |
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91 ]); |
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92 }, |
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93 "observes start of daylight savings time": function(range) { |
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94 assert.deepEqual(range(utc(2011, 2, 13, 9), utc(2011, 2, 13, 12)), [ |
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95 utc(2011, 2, 13, 9), |
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96 utc(2011, 2, 13, 10), |
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97 utc(2011, 2, 13, 11) |
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98 ]); |
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99 }, |
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100 "observes end of daylight savings time": function(range) { |
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101 assert.deepEqual(range(utc(2011, 10, 6, 7), utc(2011, 10, 6, 10)), [ |
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102 utc(2011, 10, 6, 7), |
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103 utc(2011, 10, 6, 8), |
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104 utc(2011, 10, 6, 9) |
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105 ]); |
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106 } |
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107 } |
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108 } |
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109 }); |
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110 |
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111 function local(year, month, day, hours, minutes, seconds) { |
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112 return new Date(year, month, day, hours || 0, minutes || 0, seconds || 0); |
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113 } |
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114 |
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115 function utc(year, month, day, hours, minutes, seconds) { |
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116 return new Date(Date.UTC(year, month, day, hours || 0, minutes || 0, seconds || 0)); |
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117 } |
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118 |
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119 function tz(tz, scope) { |
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120 return function() { |
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121 var o = process.env.TZ; |
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122 try { |
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123 process.env.TZ = tz; |
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124 new Date(0).toString(); // invalidate node's dst cache |
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125 new Date().toString(); |
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126 scope.apply(this, arguments); |
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127 } finally { |
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128 process.env.TZ = o; |
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129 new Date(0).toString(); // invalidate node's dst cache |
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130 new Date().toString(); |
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131 } |
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132 }; |
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133 } |
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134 |
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135 suite.export(module); |