graphquire/test/test-utils.js

module graph builder and installer.

/* vim:set ts=2 sw=2 sts=2 expandtab */
/*jshint asi: true undef: true es5: true node: true devel: true
         forin: true latedef: false globalstrict: true */
/*global define: true */

"use strict";

function isAbsolute(uri) { return uri && uri.charAt(0) !== '.' }
function resolve(uri, base) {
  var path, paths, last
  if (isAbsolute(uri)) return uri
  paths = uri.split('/')
  base = base ? base.split('/') : [ '.' ]
  if (base.length > 1) base.pop()
  while ((path = paths.shift())) {
    if (path === '..') {
      if (base.length && base[base.length - 1] !== '..') {
        if (base.pop() === '.') base.push(path)
      } else base.push(path)
    } else if (path !== '.') {
      base.push(path)
    }
  }
  if (base[base.length - 1].substr(-1) === '.') base.push('')
  return base.join('/')
}

exports['test resolve'] = function(assert) {
  assert.equal(resolve('./'), './', './ @ => ./')
  assert.equal(resolve('.'), './', '. @ => ./')
  assert.equal(resolve('./a'), './a', './a @ => ./a')
  assert.equal(resolve('./a/b'), './a/b', './a/b @ => ./a/b')
  assert.equal(resolve('./a', './b'), './a', './a @ ./b => ./a')
  assert.equal(resolve('./a', '../b'), '../a', './a @ ../b => ../a')
  assert.equal(resolve('./a', '../b/c'), '../b/a', './a @ ../b/c => ../b/a')
  assert.equal(resolve('../b'), '../b', '../b @ => ../b')
  assert.equal(resolve('../../a', './b'), '../../a', '../../a @ ./b => ../../a')
  assert.equal(resolve('../../a', './b/c'), '../a', '../../a @ ./b/c => ../a')
  assert.equal(resolve('../..', './a/b/c'), './', '../.. @ ./a/b/c => ./')
  assert.equal(resolve('./', '../b'), '../', './ @ ../b => ../b')
  assert.equal(resolve('./a', '../b'), '../a', './a @ ../b => ../a')
  assert.equal(resolve('..', '..'), '../../', '.. @ .. => ../../')
  assert.equal(resolve('../', '..'), '../../', '../ @ .. => ../../')
  assert.equal(resolve('..', '../'), '../../', '.. @ ../ => ../../')
  assert.equal(resolve('../', '../'), '../../', '../ @ ../ => ../../')
  assert.equal(resolve('..', '../a/b'), '../', '.. @ ../a/b => ../')
  assert.equal(resolve('.', '..'), '../', '. @ .. => ../')

}

if (module == require.main)
  require("test").run(exports)