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# Grade School
Given students' names along with the grade that they are in, create a roster
for the school.
In the end, you should be able to:
- Add a student's name to the roster for a grade
- "Add Jim to grade 2."
- "OK."
- Get a list of all students enrolled in a grade
- "Which students are in grade 2?"
- "We've only got Jim just now."
- Get a sorted list of all students in all grades. Grades should sort
as 1, 2, 3, etc., and students within a grade should be sorted
alphabetically by name.
- "Who all is enrolled in school right now?"
- "Grade 1: Anna, Barb, and Charlie. Grade 2: Alex, Peter, and Zoe.
Grade 3…"
Note that all our students only have one name. (It's a small town, what
do you want?)
## For bonus points
Did you get the tests passing and the code clean? If you want to, these
are some additional things you could try:
- If you're working in a language with mutable data structures and your
implementation allows outside code to mutate the school's internal DB
directly, see if you can prevent this. Feel free to introduce additional
tests.
Then please share your thoughts in a comment on the submission. Did this
experiment make the code better? Worse? Did you learn anything from it?
## Making the Test Suite Pass
1. Get [PHPUnit].
% wget --no-check-certificate https://phar.phpunit.de/phpunit.phar
% chmod +x phpunit.phar
2. Execute the tests for an assignment.
% phpunit.phar wordy/wordy_test.php
[PHPUnit]: http://phpunit.de
## Source
A pairing session with Phil Battos at gSchool [http://gschool.it](http://gschool.it)
## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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