fix: 统一业务响应状态码约定

modules/auth/controller_test.go

@@ -0,0 +1,61 @@
+//go:build cgo
+
+package auth
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"skeleton/config"
+	"skeleton/database"
+	"skeleton/middlewares"
+	"skeleton/models"
+
+	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
+)
+
+func TestBusinessErrorsUseHTTP200(t *testing.T) {
+	cfg := config.DatabaseConfig{Driver: "sqlite", DSN: ":memory:", MaxIdleConns: 1, MaxOpenConns: 1}
+	if err := database.Init(&cfg, zap.NewNop()); err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+	if err := database.GetDB().AutoMigrate(&models.User{}); err != nil {
+		t.Fatal(err)
+	}
+	middlewares.InitJWT("test-secret", 15, 24, "test")
+
+	gin.SetMode(gin.TestMode)
+	controller := NewController()
+	router := gin.New()
+	router.POST("/register", controller.Register)
+	router.POST("/login", controller.Login)
+
+	assertBusinessResponse(t, router, "/register", `{"username":"x","password":"short"}`, 400)
+	assertBusinessResponse(t, router, "/register", `{"username":"demo","password":"change-me-123"}`, 200)
+	assertBusinessResponse(t, router, "/login", `{"username":"demo","password":"wrong-password"}`, 401)
+}
+
+func assertBusinessResponse(t *testing.T, handler http.Handler, path, body string, wantCode int) {
+	t.Helper()
+	request := httptest.NewRequest(http.MethodPost, path, bytes.NewBufferString(body))
+	request.Header.Set("Content-Type", "application/json")
+	recorder := httptest.NewRecorder()
+	handler.ServeHTTP(recorder, request)
+	if recorder.Code != http.StatusOK {
+		t.Fatalf("HTTP status = %d, want 200; body=%s", recorder.Code, recorder.Body.String())
+	}
+	var response struct {
+		Code int `json:"code"`
+	}
+	if err := json.Unmarshal(recorder.Body.Bytes(), &response); err != nil {
+		t.Fatal(err)
+	}
+	if response.Code != wantCode {
+		t.Fatalf("business code = %d, want %d; body=%s", response.Code, wantCode, recorder.Body.String())
+	}
+}