[handlers] use Validate.Var for slice validation

internal/sms-gateway/handlers/base/handler.go

@@ -43,7 +43,7 @@ func (h *Handler) ParamsParserValidator(c *fiber.Ctx, out any) error {
 
 func (h *Handler) ValidateStruct(out any) error {
 	if h.Validator != nil {
-		if err := h.Validator.Struct(out); err != nil {
+		if err := h.Validator.Var(out, "required,dive"); err != nil {
 			return fiber.NewError(fiber.StatusBadRequest, err.Error())
 		}
 	}

internal/sms-gateway/handlers/base/handler_test.go

@@ -11,7 +11,6 @@ import (
 	"github.com/android-sms-gateway/server/internal/sms-gateway/handlers/base"
 	"github.com/go-playground/validator/v10"
 	"github.com/gofiber/fiber/v2"
-	"go.uber.org/zap"
 	"go.uber.org/zap/zaptest"
 )
 
@@ -25,6 +24,16 @@ type testRequestBodyNoValidate struct {
 	Age  int    `json:"age" validate:"required"`
 }
 
+type testRequestQuery struct {
+	Name string `query:"name" validate:"required"`
+	Age  int    `query:"age" validate:"required"`
+}
+
+type testRequestParams struct {
+	ID   string `params:"id" validate:"required"`
+	Name string `params:"name" validate:"required"`
+}
+
 func (t *testRequestBody) Validate() error {
 	if t.Age < 18 {
 		return fmt.Errorf("must be at least 18 years old")
@@ -32,6 +41,20 @@ func (t *testRequestBody) Validate() error {
 	return nil
 }
 
+func (t *testRequestQuery) Validate() error {
+	if t.Age < 18 {
+		return fmt.Errorf("must be at least 18 years old")
+	}
+	return nil
+}
+
+func (t *testRequestParams) Validate() error {
+	if t.ID == "invalid" {
+		return fmt.Errorf("invalid ID")
+	}
+	return nil
+}
+
 func TestHandler_BodyParserValidator(t *testing.T) {
 	logger := zaptest.NewLogger(t)
 	validate := validator.New()
@@ -100,7 +123,10 @@ func TestHandler_BodyParserValidator(t *testing.T) {
 				req = httptest.NewRequest("POST", test.path, nil)
 			}
 
-			resp, _ := app.Test(req)
+			resp, err := app.Test(req)
+			if err != nil {
+				t.Fatalf("app.Test failed: %v", err)
+			}
 			if test.expectedStatus != resp.StatusCode {
 				t.Errorf("Expected status code %d, got %d", test.expectedStatus, resp.StatusCode)
 			}
@@ -109,89 +135,200 @@ func TestHandler_BodyParserValidator(t *testing.T) {
 }
 
 func TestHandler_QueryParserValidator(t *testing.T) {
-	type fields struct {
-		Logger    *zap.Logger
-		Validator *validator.Validate
-	}
-	type args struct {
-		c   *fiber.Ctx
-		out any
+	logger := zaptest.NewLogger(t)
+	validate := validator.New()
+
+	handler := &base.Handler{
+		Logger:    logger,
+		Validator: validate,
 	}
+
+	app := fiber.New()
+	app.Get("/test", func(c *fiber.Ctx) error {
+		var query testRequestQuery
+		return handler.QueryParserValidator(c, &query)
+	})
+
 	tests := []struct {
-		name    string
-		fields  fields
-		args    args
-		wantErr bool
+		description    string
+		path           string
+		expectedStatus int
 	}{
-		// TODO: Add test cases.
+		{
+			description:    "Invalid query parameters - non-integer age",
+			path:           "/test?name=John&age=abc",
+			expectedStatus: fiber.StatusBadRequest,
+		},
+		{
+			description:    "Valid query parameters",
+			path:           "/test?name=John&age=25",
+			expectedStatus: fiber.StatusOK,
+		},
+		{
+			description:    "Invalid query parameters - missing name",
+			path:           "/test?age=25",
+			expectedStatus: fiber.StatusBadRequest,
+		},
+		{
+			description:    "Invalid query parameters - age too low",
+			path:           "/test?name=John&age=17",
+			expectedStatus: fiber.StatusBadRequest,
+		},
+		{
+			description:    "Invalid query parameters - missing age",
+			path:           "/test?name=John",
+			expectedStatus: fiber.StatusBadRequest,
+		},
 	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			h := &base.Handler{
-				Logger:    tt.fields.Logger,
-				Validator: tt.fields.Validator,
+
+	for _, test := range tests {
+		t.Run(test.description, func(t *testing.T) {
+			req := httptest.NewRequest("GET", test.path, nil)
+
+			resp, err := app.Test(req)
+			if err != nil {
+				t.Fatalf("app.Test failed: %v", err)
 			}
-			if err := h.QueryParserValidator(tt.args.c, tt.args.out); (err != nil) != tt.wantErr {
-				t.Errorf("Handler.QueryParserValidator() error = %v, wantErr %v", err, tt.wantErr)
+			if test.expectedStatus != resp.StatusCode {
+				t.Errorf("Expected status code %d, got %d", test.expectedStatus, resp.StatusCode)
 			}
 		})
 	}
 }
 
 func TestHandler_ParamsParserValidator(t *testing.T) {
-	type fields struct {
-		Logger    *zap.Logger
-		Validator *validator.Validate
-	}
-	type args struct {
-		c   *fiber.Ctx
-		out any
+	logger := zaptest.NewLogger(t)
+	validate := validator.New()
+
+	handler := &base.Handler{
+		Logger:    logger,
+		Validator: validate,
 	}
+
+	app := fiber.New()
+	app.Get("/test/:id/:name", func(c *fiber.Ctx) error {
+		var params testRequestParams
+		return handler.ParamsParserValidator(c, &params)
+	})
+
 	tests := []struct {
-		name    string
-		fields  fields
-		args    args
-		wantErr bool
+		description    string
+		path           string
+		expectedStatus int
 	}{
-		// TODO: Add test cases.
+		{
+			description:    "Valid path parameters",
+			path:           "/test/123/John",
+			expectedStatus: fiber.StatusOK,
+		},
+		{
+			description:    "Invalid path parameters - missing id",
+			path:           "/test//John",
+			expectedStatus: fiber.StatusNotFound,
+		},
+		{
+			description:    "Invalid path parameters - missing name",
+			path:           "/test/123/",
+			expectedStatus: fiber.StatusNotFound,
+		},
+		{
+			description:    "Invalid path parameters - invalid ID",
+			path:           "/test/invalid/John",
+			expectedStatus: fiber.StatusBadRequest,
+		},
 	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			h := &base.Handler{
-				Logger:    tt.fields.Logger,
-				Validator: tt.fields.Validator,
+
+	for _, test := range tests {
+		t.Run(test.description, func(t *testing.T) {
+			req := httptest.NewRequest("GET", test.path, nil)
+
+			resp, err := app.Test(req)
+			if err != nil {
+				t.Fatalf("app.Test failed: %v", err)
 			}
-			if err := h.ParamsParserValidator(tt.args.c, tt.args.out); (err != nil) != tt.wantErr {
-				t.Errorf("Handler.ParamsParserValidator() error = %v, wantErr %v", err, tt.wantErr)
+			if test.expectedStatus != resp.StatusCode {
+				t.Errorf("Expected status code %d, got %d", test.expectedStatus, resp.StatusCode)
 			}
 		})
 	}
 }
 
-func TestHandler_validateStruct(t *testing.T) {
-	type fields struct {
-		Logger    *zap.Logger
-		Validator *validator.Validate
+func TestHandler_ValidateStruct(t *testing.T) {
+	logger := zaptest.NewLogger(t)
+	validate := validator.New()
+
+	// Test with validator
+	handlerWithValidator := &base.Handler{
+		Logger:    logger,
+		Validator: validate,
 	}
-	type args struct {
-		out any
+
+	// Test without validator
+	handlerWithoutValidator := &base.Handler{
+		Logger:    logger,
+		Validator: nil,
 	}
+
 	tests := []struct {
-		name    string
-		fields  fields
-		args    args
-		wantErr bool
+		description    string
+		handler        *base.Handler
+		input          any
+		expectedStatus int
 	}{
-		// TODO: Add test cases.
+		{
+			description:    "Valid struct with validator",
+			handler:        handlerWithValidator,
+			input:          &testRequestBody{Name: "John Doe", Age: 25},
+			expectedStatus: fiber.StatusOK,
+		},
+		{
+			description:    "Invalid struct with validator - missing required field",
+			handler:        handlerWithValidator,
+			input:          &testRequestBody{Age: 25},
+			expectedStatus: fiber.StatusBadRequest,
+		},
+		{
+			description:    "Invalid struct with validator - custom validation fails",
+			handler:        handlerWithValidator,
+			input:          &testRequestBody{Name: "John Doe", Age: 17},
+			expectedStatus: fiber.StatusBadRequest,
+		},
+		{
+			description:    "Valid struct without validator",
+			handler:        handlerWithoutValidator,
+			input:          &testRequestBody{Name: "John Doe", Age: 25},
+			expectedStatus: fiber.StatusOK,
+		},
+		{
+			description:    "Invalid struct without validator - custom validation fails",
+			handler:        handlerWithoutValidator,
+			input:          &testRequestBody{Name: "John Doe", Age: 17},
+			expectedStatus: fiber.StatusBadRequest,
+		},
+		{
+			description:    "Valid struct with Validatable interface",
+			handler:        handlerWithValidator,
+			input:          &testRequestQuery{Name: "John", Age: 25},
+			expectedStatus: fiber.StatusOK,
+		},
+		{
+			description:    "Invalid struct with Validatable interface",
+			handler:        handlerWithValidator,
+			input:          &testRequestQuery{Name: "John", Age: 17},
+			expectedStatus: fiber.StatusBadRequest,
+		},
 	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			h := &base.Handler{
-				Logger:    tt.fields.Logger,
-				Validator: tt.fields.Validator,
+
+	for _, test := range tests {
+		t.Run(test.description, func(t *testing.T) {
+			err := test.handler.ValidateStruct(test.input)
+
+			if test.expectedStatus == fiber.StatusOK && err != nil {
+				t.Errorf("Expected no error, got %v", err)
 			}
-			if err := h.ValidateStruct(tt.args.out); (err != nil) != tt.wantErr {
-				t.Errorf("Handler.validateStruct() error = %v, wantErr %v", err, tt.wantErr)
+
+			if test.expectedStatus == fiber.StatusBadRequest && err == nil {
+				t.Errorf("Expected error, got nil")
 			}
 		})
 	}

internal/sms-gateway/handlers/messages/3rdparty.go

@@ -62,12 +62,12 @@ type ThirdPartyController struct {
 func (h *ThirdPartyController) post(user models.User, c *fiber.Ctx) error {
 	var params thirdPartyPostQueryParams
 	if err := h.QueryParserValidator(c, &params); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	var req smsgateway.Message
 	if err := h.BodyParserValidator(c, &req); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	var device models.Device
@@ -192,7 +192,7 @@ func (h *ThirdPartyController) post(user models.User, c *fiber.Ctx) error {
 func (h *ThirdPartyController) list(user models.User, c *fiber.Ctx) error {
 	params := thirdPartyGetQueryParams{}
 	if err := h.QueryParserValidator(c, &params); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	messages, total, err := h.messagesSvc.SelectStates(user, params.ToFilter(), params.ToOptions())
@@ -252,7 +252,7 @@ func (h *ThirdPartyController) get(user models.User, c *fiber.Ctx) error {
 func (h *ThirdPartyController) postInboxExport(user models.User, c *fiber.Ctx) error {
 	req := smsgateway.MessagesExportRequest{}
 	if err := h.BodyParserValidator(c, &req); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	device, err := h.devicesSvc.Get(user.ID, devices.WithID(req.DeviceID))

internal/sms-gateway/handlers/messages/mobile.go

@@ -49,7 +49,7 @@ func (h *MobileController) list(device models.Device, c *fiber.Ctx) error {
 	// Get and validate order parameter
 	params := mobileGetQueryParams{}
 	if err := h.QueryParserValidator(c, &params); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	msgs, err := h.messagesSvc.SelectPending(device.ID, params.OrderOrDefault())
@@ -81,9 +81,9 @@ func (h *MobileController) list(device models.Device, c *fiber.Ctx) error {
 //
 // Update message state
 func (h *MobileController) patch(device models.Device, c *fiber.Ctx) error {
-	var req smsgateway.MobilePatchMessageRequest
+	req := smsgateway.MobilePatchMessageRequest{}
 	if err := h.BodyParserValidator(c, &req); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	for _, v := range req {

internal/sms-gateway/handlers/mobile.go

@@ -96,7 +96,7 @@ func (h *mobileHandler) postDevice(c *fiber.Ctx) (err error) {
 	req := smsgateway.MobileRegisterRequest{}
 
 	if err = h.BodyParserValidator(c, &req); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	var (
@@ -150,7 +150,7 @@ func (h *mobileHandler) patchDevice(device models.Device, c *fiber.Ctx) error {
 	req := smsgateway.MobileUpdateRequest{}
 
 	if err := h.BodyParserValidator(c, &req); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	if req.Id != device.ID {
@@ -205,7 +205,7 @@ func (h *mobileHandler) changePassword(device models.Device, c *fiber.Ctx) error
 	req := smsgateway.MobileChangePasswordRequest{}
 
 	if err := h.BodyParserValidator(c, &req); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		return err
 	}
 
 	if err := h.authSvc.ChangePassword(device.UserID, req.CurrentPassword, req.NewPassword); err != nil {