chore: refactoring mapping string to slice (#1959)

core/mapping/unmarshaler_test.go

@@ -2777,6 +2777,36 @@ func TestUnmarshalJsonReaderComplex(t *testing.T) {
 	assert.Equal(t, "txt", req.Txt)
 }
 
+func TestUnmarshalJsonReaderArrayBool(t *testing.T) {
+	payload := `{"id": false}`
+	var res struct {
+		ID []string `json:"id"`
+	}
+	reader := strings.NewReader(payload)
+	err := UnmarshalJsonReader(reader, &res)
+	assert.NotNil(t, err)
+}
+
+func TestUnmarshalJsonReaderArrayInt(t *testing.T) {
+	payload := `{"id": 123}`
+	var res struct {
+		ID []string `json:"id"`
+	}
+	reader := strings.NewReader(payload)
+	err := UnmarshalJsonReader(reader, &res)
+	assert.NotNil(t, err)
+}
+
+func TestUnmarshalJsonReaderArrayString(t *testing.T) {
+	payload := `{"id": "123"}`
+	var res struct {
+		ID []string `json:"id"`
+	}
+	reader := strings.NewReader(payload)
+	err := UnmarshalJsonReader(reader, &res)
+	assert.NotNil(t, err)
+}
+
 func BenchmarkDefaultValue(b *testing.B) {
 	for i := 0; i < b.N; i++ {
 		var a struct {
@@ -2789,14 +2819,3 @@ func BenchmarkDefaultValue(b *testing.B) {
 		}
 	}
 }
-
-func TestUnmarshalJsonReaderArray(t *testing.T) {
-	payload := "{\"id\": 123}"
-	var res struct {
-		ID []string   `json:"id"`
-	}
-	reader := strings.NewReader(payload)
-	err := UnmarshalJsonReader(reader, &res)
-	assert.Nil(t, err)
-	assert.Equal(t, 1, len(res.ID))
-}