115 lines
3.3 KiB
JavaScript
115 lines
3.3 KiB
JavaScript
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/* eslint-env mocha */
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const Promise = require('bluebird')
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const expect = require('chai').expect
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const path = require('path')
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const getPackageInfo = require('../src/index')
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const readFile = Promise.promisify(require('fs').readFile)
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// Test to see if given source actually represents the source
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const testSource = (prop, source) => {
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return readFile(source.src, 'utf-8')
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.then(JSON.parse)
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.then((pkg) => expect(pkg).to.deep.equal(source.pkg))
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}
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describe('get-package-info', () => {
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it('should reject promise for non-array non-string props', (done) => {
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getPackageInfo(
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{},
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path.join(__dirname, 'node_modules/we/need/to/go/deeper/')
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)
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.catch(() => {
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done()
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})
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})
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it('should return an empty result', () => {
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return getPackageInfo(
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[],
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path.join(__dirname, 'node_modules/we/need/to/go/deeper/')
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)
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.then((result) => {
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expect(result.values).to.deep.equal({})
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expect(result.source).to.deep.equal({})
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})
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})
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it('should return the right properties', () => {
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return getPackageInfo(
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[
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['productName', 'name'],
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'version',
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'dependencies.some-dependency',
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'devDependencies.some-dev-dependency'
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],
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path.join(__dirname, 'node_modules/we/need/to/go/deeper/')
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)
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.then((result) => {
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expect(result.values).to.deep.equal({
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productName: 'Deeper',
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name: 'Deeper',
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version: '1.2.3',
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'dependencies.some-dependency': '~1.2.3',
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'devDependencies.some-dev-dependency': '~1.2.3'
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})
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return Promise.all(Object.keys(result.source).map(
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(prop) => testSource(prop, result.source[prop])
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))
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})
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})
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it('should return the right properties to a given callback', (done) => {
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getPackageInfo(
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[
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['productName', 'name'],
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'version',
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'dependencies.some-dependency',
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'devDependencies.some-dev-dependency'
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],
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path.join(__dirname, 'node_modules/we/need/to/go/deeper/'),
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(err, result) => {
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expect(err).to.be.null
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expect(result.values).to.deep.equal({
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productName: 'Deeper',
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name: 'Deeper',
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version: '1.2.3',
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'dependencies.some-dependency': '~1.2.3',
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'devDependencies.some-dev-dependency': '~1.2.3'
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})
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// Test source prop points to the prop the value came from
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expect(result.source['productName'].prop).to.equal('productName')
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expect(result.source['name'].prop).to.equal('productName')
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expect(result.source['version'].prop).to.equal('version')
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Promise.all(Object.keys(result.source).map(
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(prop) => testSource(prop, result.source[prop])
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))
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.then(() => done())
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}
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)
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})
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it('should resolve with error message when unable to find all props', () => {
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return getPackageInfo(
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[
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['productName', 'name'],
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'nonexistent',
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'version',
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['this', 'doesntexist']
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],
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path.join(__dirname, 'node_modules/we/need/to/go/deeper/')
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)
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.then(() => {
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throw new Error('Should not resolve when props are missing')
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})
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.catch((err) => {
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expect(err.missingProps).to.deep.equal(['nonexistent', ['this', 'doesntexist']])
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return Promise.all(Object.keys(err.result.source).map(
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(prop) => testSource(prop, err.result.source[prop])
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))
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})
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})
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})
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