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105 lines (99 loc) · 3.18 KB
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require("../env");
require("../../d3");
require("../../d3.time");
var vows = require("vows"),
assert = require("assert");
var suite = vows.describe("d3.time.months");
suite.addBatch({
"months": {
topic: function() {
return d3.time.months;
},
"returns months": function(range) {
assert.deepEqual(range(local(2010, 10, 31), local(2011, 2, 1)), [
local(2010, 11, 1),
local(2011, 0, 1),
local(2011, 1, 1)
]);
},
"has an inclusive lower bound": function(range) {
assert.deepEqual(range(local(2010, 10, 31), local(2011, 2, 1))[0], local(2010, 11, 1));
},
"has an exclusive upper bound": function(range) {
assert.deepEqual(range(local(2010, 10, 31), local(2011, 2, 1))[2], local(2011, 1, 1));
},
"can skip months": function(range) {
assert.deepEqual(range(local(2011, 1, 1), local(2012, 1, 1), 3), [
local(2011, 3, 1),
local(2011, 6, 1),
local(2011, 9, 1),
local(2012, 0, 1)
]);
},
"observes start of daylight savings time": function(range) {
assert.deepEqual(range(local(2011, 0, 1), local(2011, 4, 1)), [
local(2011, 0, 1),
local(2011, 1, 1),
local(2011, 2, 1),
local(2011, 3, 1)
]);
},
"observes end of daylight savings time": function(range) {
assert.deepEqual(range(local(2011, 9, 1), local(2012, 1, 1)), [
local(2011, 9, 1),
local(2011, 10, 1),
local(2011, 11, 1),
local(2012, 0, 1)
]);
},
"UTC": {
topic: function(range) {
return range.utc;
},
"returns months": function(range) {
assert.deepEqual(range(utc(2010, 10, 31), utc(2011, 2, 1)), [
utc(2010, 11, 1),
utc(2011, 0, 1),
utc(2011, 1, 1)
]);
},
"has an inclusive lower bound": function(range) {
assert.deepEqual(range(utc(2010, 10, 31), utc(2011, 2, 1))[0], utc(2010, 11, 1));
},
"has an exclusive upper bound": function(range) {
assert.deepEqual(range(utc(2010, 10, 31), utc(2011, 2, 1))[2], utc(2011, 1, 1));
},
"can skip months": function(range) {
assert.deepEqual(range(utc(2011, 1, 1), utc(2012, 1, 1), 3), [
utc(2011, 3, 1),
utc(2011, 6, 1),
utc(2011, 9, 1),
utc(2012, 0, 1)
]);
},
"does not observe the start of daylight savings time": function(range) {
assert.deepEqual(range(utc(2011, 0, 1), utc(2011, 4, 1)), [
utc(2011, 0, 1),
utc(2011, 1, 1),
utc(2011, 2, 1),
utc(2011, 3, 1)
]);
},
"does not observe the end of daylight savings time": function(range) {
assert.deepEqual(range(utc(2011, 9, 1), utc(2012, 1, 1)), [
utc(2011, 9, 1),
utc(2011, 10, 1),
utc(2011, 11, 1),
utc(2012, 0, 1)
]);
}
}
}
});
function local(year, month, day, hours, minutes, seconds) {
return new Date(year, month, day, hours || 0, minutes || 0, seconds || 0);
}
function utc(year, month, day, hours, minutes, seconds) {
return new Date(Date.UTC(year, month, day, hours || 0, minutes || 0, seconds || 0));
}
suite.export(module);