prime-factors: use slices package to sort and compare test cases (#2771)

[no important files changed]

exercises/practice/prime-factors/prime_factors_test.go

@@ -1,17 +1,17 @@
 package prime
 
 import (
-	"sort"
+	"slices"
 	"testing"
 )
 
 func TestPrimeFactors(t *testing.T) {
 	for _, tc := range testCases {
 		t.Run(tc.description, func(t *testing.T) {
 			actual := Factors(tc.input)
-			sort.Slice(actual, ascending(actual))
-			sort.Slice(tc.expected, ascending(tc.expected))
-			if !slicesEqual(actual, tc.expected) {
+			slices.Sort(actual)
+			slices.Sort(tc.expected)
+			if !slices.Equal(actual, tc.expected) {
 				t.Fatalf("Factors(%d)\n got:%#v\nwant:%#v", tc.input, actual, tc.expected)
 			}
 		})
@@ -28,23 +28,3 @@ func BenchmarkPrimeFactors(b *testing.B) {
 		}
 	}
 }
-
-func slicesEqual(a, b []int64) bool {
-	if len(a) != len(b) {
-		return false
-	}
-
-	for i := 0; i < len(a); i++ {
-		if a[i] != b[i] {
-			return false
-		}
-	}
-
-	return true
-}
-
-func ascending(list []int64) func(int, int) bool {
-	return func(i, j int) bool {
-		return list[i] < list[j]
-	}
-}