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'use strict';
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);
}
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