feat: sorting exercise (zhravan#138)

Author: kawpii

internal/exercises/catalog.yaml

@@ -154,6 +154,11 @@ concepts:
   test_regex: ".*"
   hints:
     - Use `sync.Mutex` to synchronize access to a shared resource.
+- slug: 32_sorting
+  title: Sorting
+  test_regex: ".*"
+  hints:
+    - Use `slice.Sort` for sorting slices.
 - slug: 33_string_formatting
   title: String Formatting
   test_regex: ".*"

internal/exercises/solutions/32_sorting/sorting.go

@@ -0,0 +1,18 @@
+package sorting
+
+import (
+	"slices"
+)
+
+var Years = []int{2017, 2003, 2026}
+var Pets = []string{"Dog", "Cat", "Parrot"}
+
+func SortYears() []int {
+	slices.Sort(Years)
+	return Years
+}
+
+func SortPets() []string {
+	slices.Sort(Pets)
+	return Pets
+}

internal/exercises/templates/32_sorting/sorting.go

@@ -0,0 +1,14 @@
+package sorting
+
+var Years = []int{2017, 2003, 2026}
+var Pets = []string{"Dog", "Cat", "Parrot"}
+
+// TODO: Sort years before returning
+func SortYears() []int {
+	return Years
+}
+
+// TODO: Sort pets before returning
+func SortPets() []string {
+	return Pets
+}

internal/exercises/templates/32_sorting/sorting_test.go

@@ -0,0 +1,22 @@
+package sorting
+
+import (
+	"slices"
+	"testing"
+)
+
+func TestSorting(t *testing.T) {
+	t.Run("Sorting numbers", func(t *testing.T) {
+		SortYears()
+		if !slices.IsSorted(Years) {
+			t.Fatal("Years are not sorted!")
+		}
+	})
+
+	t.Run("Sorting strings", func(t *testing.T) {
+		SortPets()
+		if !slices.IsSorted(Pets) {
+			t.Fatal("Pets are not sorted!")
+		}
+	})
+}