сделал MassFrom_Map_DESC()

micro/microfunctions.go

@@ -1194,6 +1194,13 @@ func SortMass[T constraints.Ordered](s []T) {
 	})
 }
 
+// SortMass_DESC - сортирует слайс, в обратном порядке
+func SortMass_DESC[T constraints.Ordered](s []T) {
+	sort.Slice(s, func(i, j int) bool {
+		return s[i] > s[j]
+	})
+}
+
 // MassFrom_Map - сортирует map по названию колонок и возвращает слайс
 func MassFrom_Map[C constraints.Ordered, V any](Map map[C]V) []V {
 	Otvet := make([]V, 0)
@@ -1217,6 +1224,29 @@ func MassFrom_Map[C constraints.Ordered, V any](Map map[C]V) []V {
 	return Otvet
 }
 
+// MassFrom_Map_DESC - сортирует map по названию колонок и возвращает слайс, с обратной сортировкой
+func MassFrom_Map_DESC[C constraints.Ordered, V any](Map map[C]V) []V {
+	Otvet := make([]V, 0)
+
+	//сортировка по названию колонок
+	keys := make([]C, 0, len(Map))
+	for k := range Map {
+		keys = append(keys, k)
+	}
+	SortMass_DESC(keys)
+
+	//
+	for _, key1 := range keys {
+		Value, ok := Map[key1]
+		if ok == false {
+			fmt.Printf("Map[%v] not found\n", key1)
+		}
+		Otvet = append(Otvet, Value)
+	}
+
+	return Otvet
+}
+
 // Substring - take at most last n characters, from start index
 func Substring(input string, StartIndex int, length int) string {
 	//asRunes := []rune(input)

micro/microfunctions_test.go

@@ -1190,6 +1190,25 @@ func TestMassFrom_Map(t *testing.T) {
 	})
 }
 
+func TestMassFrom_Map_DESC(t *testing.T) {
+	// Test case for sorting a map by column names
+	t.Run("Sort map by keys", func(t *testing.T) {
+		input := map[string]int{"c": 3, "a": 1, "b": 2}
+		expected := []int{3, 2, 1}
+		result := MassFrom_Map_DESC(input)
+		if !reflect.DeepEqual(result, expected) {
+			t.Errorf("Expected %v, but got %v", expected, result)
+		}
+	})
+
+	// Test case for handling a key not found in the map
+	t.Run("Key not found", func(t *testing.T) {
+		input := map[string]string{"a": "apple", "b": "banana"}
+		_ = MassFrom_Map(input) // This call should print an error message for the missing key
+		// You can capture the output of fmt.Printf using https://stackoverflow.com/questions/10473800/in-go-how-do-i-capture-stdout-of-a-function-into-a-string
+	})
+}
+
 func TestStringDateTime(t *testing.T) {
 	// Test case 1: Testing the output format for a specific date and time
 	expectedResult1 := "31.12.2022 23:59:59"