Skip to content
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 5 additions & 1 deletion exercises/practice/raindrops/.docs/instructions.md
Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
# Instructions

Your task is to convert a number into a string that contains raindrop sounds corresponding to certain potential factors. A factor is a number that evenly divides into another number, leaving no remainder. The simplest way to test if a one number is a factor of another is to use the [modulo operation](https://en.wikipedia.org/wiki/Modulo_operation).
Your task is to convert a number into a string that contains raindrop sounds corresponding to certain potential factors.
A factor is a number that evenly divides into another number, leaving no remainder.
The simplest way to test if one number is a factor of another is to use the [modulo operation][modulo].

The rules of `raindrops` are that if a given number:

Expand All @@ -14,3 +16,5 @@ The rules of `raindrops` are that if a given number:
- 28 has 7 as a factor, but not 3 or 5, so the result would be "Plong".
- 30 has both 3 and 5 as factors, but not 7, so the result would be "PlingPlang".
- 34 is not factored by 3, 5, or 7, so the result would be "34".

[modulo]: https://en.wikipedia.org/wiki/Modulo_operation
2 changes: 1 addition & 1 deletion exercises/practice/raindrops/.meta/config.json
Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
{
"blurb": "Convert a number to a string, the content of which depends on the number's factors.",
"authors": [
"LegalizeAdulthood"
],
Expand All @@ -24,6 +23,7 @@
".meta/example.h"
]
},
"blurb": "Convert a number to a string, the content of which depends on the number's factors.",
"source": "A variation on FizzBuzz, a famous technical interview question that is intended to weed out potential candidates. That question is itself derived from Fizz Buzz, a popular children's game for teaching division.",
"source_url": "https://en.wikipedia.org/wiki/Fizz_buzz"
}
13 changes: 10 additions & 3 deletions exercises/practice/raindrops/.meta/tests.toml
Original file line number Diff line number Diff line change
@@ -1,6 +1,13 @@
# This is an auto-generated file. Regular comments will be removed when this
# file is regenerated. Regenerating will not touch any manually added keys,
# so comments can be added in a "comment" key.
# This is an auto-generated file.
#
# Regenerating this file via `configlet sync` will:
# - Recreate every `description` key/value pair
# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
# - Preserve any other key/value pair
#
# As user-added comments (using the # character) will be removed when this file
# is regenerated, comments can be added via a `comment` key.

[1575d549-e502-46d4-a8e1-6b7bec6123d8]
description = "the sound for 1 is 1"
Expand Down
57 changes: 25 additions & 32 deletions exercises/practice/raindrops/raindrops_test.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -5,84 +5,77 @@
#include "test/catch.hpp"
#endif

TEST_CASE("one_yields_itself")
TEST_CASE("the_sound_for_1_is_1")
{
REQUIRE("1" == raindrops::convert(1));
}

#if defined(EXERCISM_RUN_ALL_TESTS)
TEST_CASE("three_yields_pling")
TEST_CASE("the_sound_for_3_is_pling")
{
REQUIRE("Pling" == raindrops::convert(3));
}

TEST_CASE("five_yields_plang")
TEST_CASE("the_sound_for_5_is_plang")
{
REQUIRE("Plang" == raindrops::convert(5));
}

TEST_CASE("seven_yields_plong")
TEST_CASE("the_sound_for_7_is_plong")
{
REQUIRE("Plong" == raindrops::convert(7));
}

TEST_CASE("six_yields_pling")
TEST_CASE("the_sound_for_6_is_pling_as_it_has_a_factor_3")
{
REQUIRE("Pling" == raindrops::convert(6));
}

TEST_CASE("nine_yields_pling")
TEST_CASE("2_to_the_power_3_does_not_make_a_raindrop_sound_as_3_is_the_exponent_not_the_base")
{
REQUIRE("8" == raindrops::convert(8));
}
TEST_CASE("the_sound_for_9_is_pling_as_it_has_a_factor_3")
{
REQUIRE("Pling" == raindrops::convert(9));
}

TEST_CASE("ten_yields_plang")
TEST_CASE("the_sound_for_10_is_plang_as_it_has_a_factor_5")
{
REQUIRE("Plang" == raindrops::convert(10));
}

TEST_CASE("fourteen_yields_plong")
TEST_CASE("the_sound_for_14_is_plong_as_it_has_a_factor_of_7")
{
REQUIRE("Plong" == raindrops::convert(14));
}

TEST_CASE("fifteen_yields_plingplang")
TEST_CASE("the_sound_for_15_is_plingplang_as_it_has_factors_3_and_5")
{
REQUIRE("PlingPlang" == raindrops::convert(15));
}

TEST_CASE("twenty_one_yields_plingplong")
TEST_CASE("the_sound_for_21_is_plingplong_as_it_has_factors_3_and_7")
{
REQUIRE("PlingPlong" == raindrops::convert(21));
}

TEST_CASE("twenty_five_yields_plang")
TEST_CASE("the_sound_for_25_is_plang_as_it_has_a_factor_5")
{
REQUIRE("Plang" == raindrops::convert(25));
}

TEST_CASE("thirty_five_yields_plangplong")
TEST_CASE("the_sound_for_27_is_pling_as_it_has_a_factor_3")
{
REQUIRE("Pling" == raindrops::convert(27));
}
TEST_CASE("the_sound_for_35_is_plangplong_as_it_has_factors_5_and_7")
{
REQUIRE("PlangPlong" == raindrops::convert(35));
}

TEST_CASE("forty_nine_yields_plong")
TEST_CASE("the_sound_for_49_is_plong_as_it_has_a_factor_7")
{
REQUIRE("Plong" == raindrops::convert(49));
}

TEST_CASE("fifty_two_yields_itself")
TEST_CASE("the_sound_for_52_is_52")
{
REQUIRE("52" == raindrops::convert(52));
}

TEST_CASE("one_hundred_five_yields_plingplangplong")
TEST_CASE("the_sound_for_105_is_plingplangplong_as_it_has_factors_3_5_and_7")
{
REQUIRE("PlingPlangPlong" == raindrops::convert(105));
}

TEST_CASE("big_prime_yields_itself")
TEST_CASE("the_sound_for_3125_is_plang_as_it_has_a_factor_5")
{
REQUIRE("12121" == raindrops::convert(12121));
REQUIRE("Plang" == raindrops::convert(3125));
}
#endif