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nodejs/test/simple/test-repl-autolibs.js
Ben Noordhuis aad2013508 repl: allow overriding builtins
Don't give names of built-in libraries special treatment.
Changes the REPL's behavior from this:

  > var path = 42
  > path
  A different "path" already exists globally

To this:

  > var path = 42
  > path
  42

Fixes #4512.
2013-01-03 19:58:47 +01:00

81 lines
2.5 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var assert = require('assert');
var util = require('util');
var repl = require('repl');
// A stream to push an array into a REPL
function ArrayStream() {
this.run = function (data) {
var self = this;
data.forEach(function (line) {
self.emit('data', line + '\n');
});
}
}
util.inherits(ArrayStream, require('stream').Stream);
ArrayStream.prototype.readable = true;
ArrayStream.prototype.writable = true;
ArrayStream.prototype.resume = function () {};
ArrayStream.prototype.write = function () {};
var putIn = new ArrayStream;
var testMe = repl.start('', putIn, null, true);
test1();
function test1(){
var gotWrite = false;
putIn.write = function (data) {
gotWrite = true;
if (data.length) {
// inspect output matches repl output
assert.equal(data, util.inspect(require('fs'), null, 2, false) + '\n');
// globally added lib matches required lib
assert.equal(global.fs, require('fs'));
test2();
}
};
assert(!gotWrite);
putIn.run(['fs']);
assert(gotWrite);
}
function test2(){
var gotWrite = false;
putIn.write = function(data) {
gotWrite = true;
if (data.length) {
// repl response error message
assert.equal(data, '{}\n');
// original value wasn't overwritten
assert.equal(val, global.url);
}
};
var val = {};
global.url = val;
assert(!gotWrite);
putIn.run(['url']);
assert(gotWrite);
}