Instantly share code, notes, and snippets.

Embed
What would you like to do?
A simple JavaScript project tested with Buster.JS
var config = exports; // Vanity
config["Browser tests"] = {
environment: "browser",
sources: ["strftime.js"],
tests: ["strftime-test.js"]
};
config["Server tests"] = {
extends: "Browser tests",
environment: "node"
};
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>strftime</title>
</head>
<body>
<script type="text/javascript" src="http://cdn.busterjs.org/releases/latest/buster-test.js"></script>
<script type="text/javascript" src="http://cdn.busterjs.org/examples/strftime/strftime.js"></script>
<script type="text/javascript" src="http://cdn.busterjs.org/examples/strftime/strftime-test.js"></script>
</body>
</html>
if (typeof require == "function" && typeof module == "object") {
buster = require("buster");
require("./strftime");
}
var assert = buster.assert;
buster.testCase("Date strftime tests", {
setUp: function () {
this.date = new Date(2009, 11, 5);
},
"%Y": {
setUp: function () {
this.year = this.date.strftime("%Y");
},
"should return full year": function () {
assert.equals(this.year, "2009");
},
"should return a string": function () {
assert.equals(typeof this.year, "string");
}
},
"%y should return two digit year": function () {
assert.equals(this.date.strftime("%y"), "09");
},
"%m should return month": function () {
assert.equals(this.date.strftime("%m"), "12");
},
"%d should return date": function () {
assert.equals(this.date.strftime("%d"), "05");
},
"//%j should return the day of the year": function () {
var date = new Date(2011, 0, 1);
assert.equals(date.strftime("%j"), 1);
}
});
// This is unfinished demo code
Date.prototype.strftime = (function () {
function strftime(format) {
var date = this;
return (format + "").replace(/%([a-zA-Z])/g, function (m, f) {
var formatter = Date.formats && Date.formats[f];
if (typeof formatter == "function") {
return formatter.call(Date.formats, date);
} else if (typeof formatter == "string") {
return date.strftime(formatter);
}
return "%" + f;
});
}
// Internal helper
function zeroPad(num) {
return (+num < 10 ? "0" : "") + num;
}
Date.formats = {
// Formatting methods
d: function (date) {
return zeroPad(date.getDate());
},
m: function (date) {
return zeroPad(date.getMonth() + 1);
},
y: function (date) {
return zeroPad(date.getYear() % 100);
},
Y: function (date) {
return date.getFullYear();
},
j: function (date) {
var jan1 = new Date(date.getFullYear(), 0, 1);
var diff = date.getTime() - jan1.getTime();
// 86400000 == 60 * 60 * 24 * 1000
return Math.ceil(diff / 86400000);
},
// Format shorthands
F: "%Y-%m-%d",
D: "%m/%d/%y"
};
return strftime;
}());
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment