Sync change with problem-specifications

The sync brought in new docs and metadata, as well as an extra
test in tests.toml.

I regenerated the tests, with no surprises.

Author: kytrinyx

exercises/practice/change/.docs/instructions.md

@@ -1,14 +1,11 @@
 # Instructions
 
-Correctly determine the fewest number of coins to be given to a customer such
-that the sum of the coins' value would equal the correct amount of change.
+Correctly determine the fewest number of coins to be given to a customer such that the sum of the coins' value would equal the correct amount of change.
 
 ## For example
 
-- An input of 15 with [1, 5, 10, 25, 100] should return one nickel (5)
-  and one dime (10) or [5, 10]
-- An input of 40 with [1, 5, 10, 25, 100] should return one nickel (5)
-  and one dime (10) and one quarter (25) or [5, 10, 25]
+- An input of 15 with [1, 5, 10, 25, 100] should return one nickel (5) and one dime (10) or [5, 10]
+- An input of 40 with [1, 5, 10, 25, 100] should return one nickel (5) and one dime (10) and one quarter (25) or [5, 10, 25]
 
 ## Edge cases
 

exercises/practice/change/.meta/config.json

@@ -1,5 +1,5 @@
 {
-  "blurb": "Correctly determine change to be given using the least number of coins",
+  "blurb": "Correctly determine change to be given using the least number of coins.",
   "authors": [
     "adimasuhid"
   ],

exercises/practice/change/.meta/tests.toml

@@ -9,6 +9,9 @@
 # As user-added comments (using the # character) will be removed when this file
 # is regenerated, comments can be added via a `comment` key.
 
+[d0ebd0e1-9d27-4609-a654-df5c0ba1d83a]
+description = "change for 1 cent"
+
 [36887bea-7f92-4a9c-b0cc-c0e886b3ecc8]
 description = "single coin change"
 

exercises/practice/change/change_test.rb

@@ -2,8 +2,13 @@
 require_relative 'change'
 
 class ChangeTest < Minitest::Test
-  def test_single_coin_change
+  def test_change_for_1_cent
     # skip
+    assert_equal [1], Change.generate([1, 5, 10, 25], 1)
+  end
+
+  def test_single_coin_change
+    skip
     assert_equal [25], Change.generate([1, 5, 10, 25, 100], 25)
   end
 
@@ -24,8 +29,8 @@ def test_change_with_lower_elbonia_coins
 
   def test_large_target_values
     skip
-    assert_equal [2, 2, 5, 20, 20, 50, 100, 100, 100, 100, 100, 100, 100, 100, 100],
-      Change.generate([1, 2, 5, 10, 20, 50, 100], 999)
+    expected = [2, 2, 5, 20, 20, 50, 100, 100, 100, 100, 100, 100, 100, 100, 100]
+    assert_equal expected, Change.generate([1, 2, 5, 10, 20, 50, 100], 999)
   end
 
   def test_possible_change_without_unit_coins_available