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Fix grade-school
Example implementation here: exercism/c#683 Fixes #1824
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‎exercises/grade-school2/canonical-data.json‎

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{
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"exercise": "grade-school2",
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"comments": [
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"Given students' names along with the grade that they are in, ",
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"create a roster for the school."
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],
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"cases": [
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{
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"uuid": "806b873f-13ca-4b19-9161-e3e11bdd15ef",
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"description": "Roster is empty when no student is added",
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"property": "roster",
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"input": {
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"students": []
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},
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"expected": []
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},
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{
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"uuid": "9337267f-7793-4b90-9b4a-8e3978408824",
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"description": "Add a student",
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"property": "add",
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"input": {
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"students": [["Aimee", 2]]
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},
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"expected": true
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},
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{
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"uuid": "aff83e6e-6bdc-4753-9f98-142d19e3f5c4",
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"description": "Student is added to the roster",
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"property": "roster",
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"input": {
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"students": [["Aimee", 2]]
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},
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"expected": ["Aimee"]
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},
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{
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"uuid": "73c3ca75-0c16-40d7-82f5-ed8fe17a8e4a",
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"description": "Adding multiple students in same the grade",
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"property": "add",
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"input": {
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"students": [["Blair", 2], ["James", 2], ["Paul", 2]]
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},
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"expected": [true, true, true]
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},
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{
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"uuid": "c398a433-7a4e-4d80-b379-938944c68a64",
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"description": "Multiple students in the same grade are added to the roster",
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"property": "roster",
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"input": {
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"students": [["Blair", 2], ["James", 2], ["Paul", 2]]
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},
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"expected": ["Blair", "James", "Paul"]
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},
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{
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"uuid": "87c871c1-6bde-4413-9c44-73d59a259d83",
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"description": "Cannot add student to same grade more than once",
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"property": "add",
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"input": {
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"students": [["Aimee", 2], ["Aimee", 2]]
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},
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"expected": [true, false]
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},
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{
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"uuid": "d7982c4f-1602-49f6-a651-620f2614243a",
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"description": "Student not added to same grade more than once",
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"property": "roster",
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"input": {
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"students": [["Aimee", 2], ["Aimee", 2]]
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},
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"expected": ["Aimee"]
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},
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{
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"uuid": "e70d5d8f-43a9-41fd-94a4-1ea0fa338056",
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"description": "Adding students in multiple grades",
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"property": "add",
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"input": {
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"students": [["Chelse", 3], ["Logan", 7]]
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},
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"expected": [true, true]
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},
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{
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"uuid": "d7fe849e-ce01-4612-8b61-05a633c34f26",
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"description": "Students in multiple grades are added to the roster",
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"property": "roster",
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"input": {
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"students": [["Chelse", 3], ["Logan", 7]]
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},
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"expected": ["Chelsea", "Logan"]
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},
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{
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"uuid": "7df542f1-57ce-433c-b249-ff77028ec479",
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"description": "Cannot add same student to multiple grades",
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"property": "add",
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"input": {
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"students": [["Aimee", 2], ["Aimee", 1]]
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},
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"expected": [true, false]
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},
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{
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"uuid": "c7ec1c5e-9ab7-4d3b-be5c-29f2f7a237c5",
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"description": "Student not added to multiple grades",
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"property": "roster",
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"input": {
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"students": [["Aimee", 2], ["Aimee", 1]]
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},
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"expected": ["Aimee"]
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},
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{
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"uuid": "d9af4f19-1ba1-48e7-94d0-dabda4e5aba6",
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"description": "Students are sorted by grades in the roster",
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"property": "roster",
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"input": {
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"students": [["Jim", 3], ["Peter", 2], ["Anna", 1]]
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},
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"expected": ["Anna", "Peter", "Jim"]
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},
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{
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"uuid": "d9fb5bea-f5aa-4524-9d61-c158d8906807",
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"description": "Students are sorted by name in the roster",
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"property": "roster",
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"input": {
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"students": [["Peter", 2], ["Zoe", 2], ["Alex", 2]]
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},
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"expected": ["Alex", "Peter", "Zoe"]
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},
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{
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"uuid": "4227a6ba-7734-4029-83bc-24b1e0bcad82",
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"description": "Students are sorted by grades and names in the roster",
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"property": "roster",
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"input": {
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"students": [["Peter", 2], ["Anna", 1], ["Barb", 1], ["Zoe", 2], ["Alex", 2], ["Jim", 3], ["Charlie", 1]]
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},
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"expected": ["Anna", "Barb", "Charlie", "Alex", "Peter", "Zoe", "Jim"]
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},
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{
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"uuid": "1e0cf06b-26e0-4526-af2d-a2e2df6a51d6",
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"description": "Grade is empty if no students in that grade",
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"property": "grade",
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"input": {
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"students": [["Peter", 2], ["Zoe", 2], ["Alex", 2], ["Jim", 3]],
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"desiredGrade": 1
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},
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"expected": []
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},
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{
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"uuid": "779bf69a-f5c4-4b53-949f-3f05fd4bd814",
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"description": "Students are sorted by name in a grade",
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"property": "roster",
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"input": {
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"students": [["Franklin", 5], ["Bradley", 5], ["Jeff", 1]],
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"desiredGrade": 5
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},
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"expected": ["Bradley", "Franklin"]
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}
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]
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}

‎exercises/grade-school2/description.md‎

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# Description
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Given students' names along with the grade that they are in, create a roster
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for the school.
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In the end, you should be able to:
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- Add a student's name to the roster for a grade
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- "Add Jim to grade 2."
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- "OK."
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- Get a list of all students enrolled in a grade
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- "Which students are in grade 2?"
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- "We've only got Jim just now."
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- Get a sorted list of all students in all grades. Grades should sort
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as 1, 2, 3, etc., and students within a grade should be sorted
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alphabetically by name.
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- "Who all is enrolled in school right now?"
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- "Let me think. We have
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Anna, Barb, and Charlie in grade 1,
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Alex, Peter, and Zoe in grade 2
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and Jim in grade 5.
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So the answer is: Anna, Barb, Charlie, Alex, Peter, Zoe and Jim"
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Note that all our students only have one name. (It's a small town, what
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do you want?)
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## For bonus points
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Did you get the tests passing and the code clean? If you want to, these
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are some additional things you could try:
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- If you're working in a language with mutable data structures and your
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implementation allows outside code to mutate the school's internal DB
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directly, see if you can prevent this. Feel free to introduce additional
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tests.
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Then please share your thoughts in a comment on the submission. Did this
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experiment make the code better? Worse? Did you learn anything from it?

‎exercises/grade-school2/metadata.toml‎

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blurb = "Given students' names along with the grade that they are in, create a roster for the school."
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source = "A pairing session with Phil Battos at gSchool"
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source_url = "http://gschool.it"

‎exercises/grade-school2/metadata.yml‎

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---
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blurb: "Given students' names along with the grade that they are in, create a roster for the school."
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source: "A pairing session with Phil Battos at gSchool"
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source_url: "http://gschool.it"

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