| /* |
| * pkginfo-test.js: Tests for the pkginfo module. |
| * |
| * (C) 2011, Charlie Robbins |
| * |
| */ |
| |
| var assert = require('assert'), |
| exec = require('child_process').exec, |
| fs = require('fs'), |
| path = require('path'), |
| vows = require('vows'), |
| pkginfo = require('../lib/pkginfo'); |
| |
| function assertProperties (source, target) { |
| assert.lengthOf(source, target.length + 1); |
| target.forEach(function (prop) { |
| assert.isTrue(!!~source.indexOf(prop)); |
| }); |
| } |
| |
| function compareWithExample(targetPath) { |
| var examplePaths = ['package.json']; |
| |
| if (targetPath) { |
| examplePaths.unshift(targetPath); |
| } |
| |
| return function(exposed) { |
| var pkg = fs.readFileSync(path.join.apply(null, [__dirname, '..', 'examples'].concat(examplePaths))).toString(), |
| keys = Object.keys(JSON.parse(pkg)); |
| |
| assertProperties(exposed, keys); |
| }; |
| } |
| |
| function testExposes (options) { |
| return { |
| topic: function () { |
| exec('node ' + path.join(__dirname, '..', 'examples', options.script), this.callback); |
| }, |
| "should expose that property correctly": function (err, stdout, stderr) { |
| assert.isNull(err); |
| |
| var exposed = stderr.match(/'(\w+)'/ig).map(function (p) { |
| return p.substring(1, p.length - 1); |
| }); |
| |
| return !options.assert |
| ? assertProperties(exposed, options.properties) |
| : options.assert(exposed); |
| } |
| } |
| } |
| |
| vows.describe('pkginfo').addBatch({ |
| "When using the pkginfo module": { |
| "and passed a single `string` argument": testExposes({ |
| script: 'single-property.js', |
| properties: ['version'] |
| }), |
| "and passed multiple `string` arguments": testExposes({ |
| script: 'multiple-properties.js', |
| properties: ['version', 'author'] |
| }), |
| "and passed an `object` argument": testExposes({ |
| script: 'object-argument.js', |
| properties: ['version', 'author'] |
| }), |
| "and passed an `array` argument": testExposes({ |
| script: 'array-argument.js', |
| properties: ['version', 'author'] |
| }), |
| "and read from a specified directory": testExposes({ |
| script: 'target-dir.js', |
| assert: compareWithExample('subdir') |
| }), |
| "and passed no arguments": testExposes({ |
| script: 'all-properties.js', |
| assert: compareWithExample() |
| }) |
| } |
| }).export(module); |