Duplicate cases in canonical-data.json

Exercism Support
1

As I’ve been building the exercises for Euphoria, I’ve notice a few places where there appear to be duplications in the “cases” of a given task’s problem-specifications. For example collatz-conjecture contains

    {
      "uuid": "7d4750e6-def9-4b86-aec7-9f7eb44f95a3",
      "description": "zero is an error",
      "property": "steps",
      "input": {
        "number": 0
      },
      "expected": {
        "error": "Only positive numbers are allowed"
      }
    },
    {
      "uuid": "2187673d-77d6-4543-975e-66df6c50e2da",
      "reimplements": "7d4750e6-def9-4b86-aec7-9f7eb44f95a3",
      "description": "zero is an error",
      "comments": ["Collatz Conjecture holds only for positive integers"],
      "property": "steps",
      "input": {
        "number": 0
      },
      "expected": {
        "error": "Only positive integers are allowed"
      }
    },
    {
      "uuid": "c6c795bf-a288-45e9-86a1-841359ad426d",
      "description": "negative value is an error",
      "property": "steps",
      "input": {
        "number": -15
      },
      "expected": {
        "error": "Only positive numbers are allowed"
      }
    },
    {
      "uuid": "ec11f479-56bc-47fd-a434-bcd7a31a7a2e",
      "reimplements": "c6c795bf-a288-45e9-86a1-841359ad426d",
      "description": "negative value is an error",
      "comments": ["Collatz Conjecture holds only for positive integers"],
      "property": "steps",
      "input": {
        "number": -15
      },
      "expected": {
        "error": "Only positive integers are allowed"
      }
    }

The tests are slightly different in the text of the error message (one says “numbers” and the other “integers”), however the name of the test is exactly the same. I have code that renders the JSON into unit test specifications and I end up with essentially duplicated tests, viz

test_equal("zero is an error",steps(0),"Only positive numbers are allowed")
test_equal("zero is an error",steps(0),"Only positive integers are allowed")
test_equal("negative value is an error",steps(-15),"Only positive numbers are allowed")
test_equal("negative value is an error",steps(-15),"Only positive integers are allowed")

Is this a bug or a feature?

2

Notice the "reimplements" field on some of them. This is documented somewhere, hold on…

3

Hmm … didn’t “see” that before but now that you point it out …

4

Documentation here: relevant section in problem-specifications readme.

5

Thank you. Makes sense.

6

Yeah. I’ve made the same mistake :smiley: A deprecated field on the old exercise would make the data a bit easier to read, but … instead there is a backwards reference.