109 lines
2.8 KiB
JavaScript
109 lines
2.8 KiB
JavaScript
var boot = require('../');
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var fs = require('fs');
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var path = require('path');
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var expect = require('must');
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var browserify = require('browserify');
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var sandbox = require('./helpers/sandbox');
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var vm = require('vm');
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describe('browser support', function() {
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it('has API for bundling and executing boot instructions', function(done) {
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var appDir = path.resolve(__dirname, './fixtures/browser-app');
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browserifyTestApp(appDir, function(err, bundlePath) {
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if (err) return done(err);
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var app = executeBundledApp(bundlePath);
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// configured in fixtures/browser-app/boot/configure.js
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expect(app.settings).to.have.property('custom-key', 'custom-value');
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expect(Object.keys(app.models)).to.include('Customer');
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expect(app.models.Customer.settings)
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.to.have.property('_customized', 'Customer');
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done();
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});
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});
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});
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function browserifyTestApp(appDir, next) {
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var b = browserify({
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basedir: appDir,
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});
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b.require('./app.js', { expose: 'browser-app' });
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boot.compileToBrowserify(appDir, b);
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var bundlePath = sandbox.resolve('browser-app-bundle.js');
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var out = fs.createWriteStream(bundlePath);
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b.bundle({ debug: true }).pipe(out);
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out.on('error', function(err) { return next(err); });
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out.on('close', function() {
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next(null, bundlePath);
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});
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}
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function executeBundledApp(bundlePath) {
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var code = fs.readFileSync(bundlePath);
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var context = createBrowserLikeContext();
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vm.runInContext(code, context, bundlePath);
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var app = vm.runInContext('require("browser-app")', context);
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printContextLogs(context);
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return app;
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}
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function createBrowserLikeContext() {
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var context = {
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// required by browserify
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XMLHttpRequest: function() { throw new Error('not implemented'); },
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localStorage: {
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// used by `debug` module
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debug: process.env.DEBUG
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},
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// used by `debug` module
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document: { documentElement: { style: {} } },
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// used by crypto-browserify & friends
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Int32Array: Int32Array,
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DataView: DataView,
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// allow the browserified code to log messages
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// call `printContextLogs(context)` to print the accumulated messages
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console: {
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log: function() {
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this._logs.log.push(Array.prototype.slice.call(arguments));
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},
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warn: function() {
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this._logs.warn.push(Array.prototype.slice.call(arguments));
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},
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error: function() {
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this._logs.error.push(Array.prototype.slice.call(arguments));
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},
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_logs: {
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log: [],
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warn: [],
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error: []
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},
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}
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};
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// `window` is used by loopback to detect browser runtime
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context.window = context;
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return vm.createContext(context);
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}
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function printContextLogs(context) {
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for (var k in context.console._logs) {
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var items = context.console._logs[k];
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for (var ix in items) {
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console[k].apply(console, items[ix]);
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}
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}
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}
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