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Diffstat (limited to 'node_modules/mocha/lib/ms.js')
-rw-r--r-- | node_modules/mocha/lib/ms.js | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/node_modules/mocha/lib/ms.js b/node_modules/mocha/lib/ms.js new file mode 100644 index 000000000..12fddc18a --- /dev/null +++ b/node_modules/mocha/lib/ms.js @@ -0,0 +1,128 @@ +/** + * Helpers. + */ + +var s = 1000; +var m = s * 60; +var h = m * 60; +var d = h * 24; +var y = d * 365.25; + +/** + * Parse or format the given `val`. + * + * Options: + * + * - `long` verbose formatting [false] + * + * @api public + * @param {string|number} val + * @param {Object} options + * @return {string|number} + */ +module.exports = function(val, options) { + options = options || {}; + if (typeof val === 'string') { + return parse(val); + } + // https://github.com/mochajs/mocha/pull/1035 + return options['long'] ? longFormat(val) : shortFormat(val); +}; + +/** + * Parse the given `str` and return milliseconds. + * + * @api private + * @param {string} str + * @return {number} + */ +function parse(str) { + var match = (/^((?:\d+)?\.?\d+) *(ms|seconds?|s|minutes?|m|hours?|h|days?|d|years?|y)?$/i).exec(str); + if (!match) { + return; + } + var n = parseFloat(match[1]); + var type = (match[2] || 'ms').toLowerCase(); + switch (type) { + case 'years': + case 'year': + case 'y': + return n * y; + case 'days': + case 'day': + case 'd': + return n * d; + case 'hours': + case 'hour': + case 'h': + return n * h; + case 'minutes': + case 'minute': + case 'm': + return n * m; + case 'seconds': + case 'second': + case 's': + return n * s; + case 'ms': + return n; + default: + // No default case + } +} + +/** + * Short format for `ms`. + * + * @api private + * @param {number} ms + * @return {string} + */ +function shortFormat(ms) { + if (ms >= d) { + return Math.round(ms / d) + 'd'; + } + if (ms >= h) { + return Math.round(ms / h) + 'h'; + } + if (ms >= m) { + return Math.round(ms / m) + 'm'; + } + if (ms >= s) { + return Math.round(ms / s) + 's'; + } + return ms + 'ms'; +} + +/** + * Long format for `ms`. + * + * @api private + * @param {number} ms + * @return {string} + */ +function longFormat(ms) { + return plural(ms, d, 'day') + || plural(ms, h, 'hour') + || plural(ms, m, 'minute') + || plural(ms, s, 'second') + || ms + ' ms'; +} + +/** + * Pluralization helper. + * + * @api private + * @param {number} ms + * @param {number} n + * @param {string} name + */ +function plural(ms, n, name) { + if (ms < n) { + return; + } + if (ms < n * 1.5) { + return Math.floor(ms / n) + ' ' + name; + } + return Math.ceil(ms / n) + ' ' + name + 's'; +} |