Passes manual testing, but automated testing returns "NoSuchElementException: No Line Found"

[bokwoon95]

Here's the relevant PR: https://github.com/nus-cs2103-AY1718S1/addressbook-level2/pull/400

I made an enhancement that prompts the user for name, phone, email, address & tags one by one as shown below. This passes manual testing, however it returns “NoSuchElementException: No line found” if I use file redirection with input.txt instead.

the compile error

Here's what input.txt looks like:

Seems like it's something to do with Scanner.nextLine() not detecting a next line, but nextLine() is the only way to read in strings with spaces in them. Any idea what is causing this?

[damithc]

When using the I/O method of testing, you should not create multiple scanners. Reason: all input text (given in one shot via the file) is swallowed by the first Scanner, leaving nothing for the subsequent scanners.

[damithc]

On a general note, the current code is tailored for a CLI interface where each command is stand-alone. Prompting for user input is hard to fit into the current code base, unless you put the code somewhere it doesn't belong, such as what you have done. :-p i.e. Interacting with the user should not be done in one place rather than all over the code base.
EDIT: should not be -> should not be

[bokwoon95]

Oh yeah I tried to get the existing system to accept user inputs one by one, but found it too complicated to modify (hence the cheap hack with creating a new class to tack onto the existing 'add person' method).