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rational-numbers: additional test for abs value #1938

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Merged
merged 1 commit into from
Feb 4, 2022

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mstranger
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@mstranger mstranger commented Feb 1, 2022

According to the issue exercism/elixir#1052

@SaschaMann
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This feels redundant and we don't have analogous cases for the other methods either. But I'm not opposed to adding the case.

@mstranger
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In other cases it happens implicitly, as I understand. For example for add([1, 2], [-1, 2]) is expected [0, 1]. But using the plain formula we get [0, 4].

@SaschaMann
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I think an equivalent and explicit case for add would be something like add([1, 4], [0, 1]) where the identity is added. Same for multiplication etc.

@jiegillet jiegillet merged commit 4bcdfc3 into exercism:main Feb 4, 2022
ErikSchierboom added a commit to ErikSchierboom/problem-specifications that referenced this pull request Feb 11, 2022
* Format using prettier (exercism#1917)

Format using prettier

* updated description of anagrams exercise (exercism#1928)

* updated description of anagrams

* changed anagram description to be one-sentence-per-line

* updated description of anagrams to use sets

* Update Licence

Give a look at the discussion in BR exercism#1930

* rational-numbers: test to reduce abs value (exercism#1938)

* Change saddle point references to row, column (exercism#1948)

* word-search: Add test case

* Update exercises/word-search/canonical-data.json

Agreed.

Co-authored-by: Erik Schierboom <[email protected]>

* meetup: improve descriptions by saying why each case is tested (exercism#1919)

descriptions show whether a date is the first, last, or an arbitrary
middle date of the week. This helps understand why certain cases are
selected.

Closes exercism#974

* word-search: Add cases checking for concatenation and wrapping

The author of this commit thinks that concatenation is highly unlikely,
but the wrapping might be useful to check in languages that allow
negative indices.

* `flatten-array` Add additional test cases (exercism#1953)

* Add additional test cases to flatten-array

* Update exercises/flatten-array/canonical-data.json

Co-authored-by: Peter Tseng <[email protected]>

Co-authored-by: BethanyG <[email protected]>
Co-authored-by: Peter Tseng <[email protected]>

* Fix bowling game copy (exercism#1955)

Fixes exercism#1954

* Add action to format code (exercism#1941)

* build(deps): bump DavidAnson/markdownlint-cli2-action (exercism#1952)

Bumps [DavidAnson/markdownlint-cli2-action](https://github.com/DavidAnson/markdownlint-cli2-action) from 5.0.0 to 5.1.0.
- [Release notes](https://github.com/DavidAnson/markdownlint-cli2-action/releases)
- [Commits](DavidAnson/markdownlint-cli2-action@b3c3b40...744f913)

---
updated-dependencies:
- dependency-name: DavidAnson/markdownlint-cli2-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Reduced rational nr. should be in standard form. (exercism#1958)

* Reduced rational should be in standard form.

The current instructors fail to mention that a reduced rational number should always be rendered in standard form (without any negative value at the denominator).

* remove superflous blank lines; fix wording

* scale-generator: use flat and sharp symbols (exercism#1942)

* Update configlet part in README (exercism#1949)

Co-authored-by: ee7 <[email protected]>

* phone number: only one problem per test input (exercism#1959)

* [Phone Number] Only one problem per test input

Because the area code is not allowed to start with 0 or 1, inputs designed to elicit other errors should not use area codes that start with either of those digits.

* Respect immutability

* Correct field name: s/comment/comments/

* Comments should contain a list.

* Allow prettier to improve comments

* book-store: reorder keys

* darts: reorder keys

* grade-school: reorder keys

* hamming: reorder keys

* high-scores: reorder keys

* largest-series-product: reorder keys

* list-ops: reorder keys

* luhn: reorder keys

* triangle: reorder keys

* scale-generator: reorder keys

* saddle-points: reorder keys

* diffie-hellman: reorder keys

* collatz-conjecture: reorder keys

* anagram: reorder keys

* accumulate: reorder keys

* Add CI script to check correct order of keys

Co-authored-by: Bart Massey <[email protected]>
Co-authored-by: y8l <[email protected]>
Co-authored-by: Ivan Ivanov <[email protected]>
Co-authored-by: Damian C. Rossney <[email protected]>
Co-authored-by: mariohuq <[email protected]>
Co-authored-by: mariohuq <[email protected]>
Co-authored-by: Peter Tseng <[email protected]>
Co-authored-by: Peter Tseng <[email protected]>
Co-authored-by: AH WEI <[email protected]>
Co-authored-by: BethanyG <[email protected]>
Co-authored-by: Cedd Burge <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Davide Alberto Molin <[email protected]>
Co-authored-by: wolf99 <[email protected]>
Co-authored-by: June <[email protected]>
Co-authored-by: ee7 <[email protected]>
Co-authored-by: Leah Hanson <[email protected]>
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4 participants