Verification failed with an error for all the exercises
aclbros opened this issue · comments
This is the error output:
$ expressworks verify program.js
?exercises.HELLO WORLD!.compare.title || common.exercise.compare.title || compare.title?
/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/comparestdout.js:19
return new Array(sz + 1).join(ch)
^
RangeError: Invalid array length
at repeat (/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/comparestdout.js:19:10)
at center (/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/comparestdout.js:25:13)
at Exercise.transform (/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/comparestdout.js:57:40)
at Transform._read (/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:184:10)
at Transform._write (/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:172:12)
at doWrite (/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:237:10)
at writeOrBuffer (/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:227:5)
at Transform.Writable.write (/home/ubuntu/.nvm/v0.11.14/lib/node_modules/expressworks/node_modules/workshopper-exercise/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:194:11)
at Stream.ondata (stream.js:51:26)
at Stream.emit (events.js:107:17)Thanks!
I am seeing the same problem, using the following code as my solution:
var express = require('express');
var app = express();
app.get('/home', function(req, res) {
res.send('Hello World!')
});
app.listen(process.argv[2]);
I can run this file with node app.js 3000 and verify a curl to localhost:3000/home works.
@trevorwhitney @aclbros compare versions of node and express. I have no idea why it's failing for you.
On 'npm/node_modules/expressworks/node_modules/workshopper-exercise/comparestdout.js' (line 23) there seems to be an error with the text formatting calculations. For a quick fix you can return s instead of doing the calculations.
function center (s, sz) {
// var sps = Math.round((sz - vw.width(s, true)) / 2)
// , sp = repeat(' ', sps)
// return sp + s + sp + (sp.length != sps ? ' ' : '')
return s;
}
Could not find the real cause of the issue though...
@jtiple15 workaround is working for me. Thanks!