实现UpdatePlan单测

internal/infra/repository/plan_repository.go

@@ -1,12 +1,20 @@
 package repository
 
 import (
+	"errors"
 	"fmt"
 
 	"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
 	"gorm.io/gorm"
 )
 
+// 定义仓库层可导出的公共错误
+var (
+	ErrUpdateWithInvalidRoot = errors.New("更新操作的目标根计划无效或ID为0")
+	ErrNewSubPlanInUpdate    = errors.New("计划树中包含一个ID为0的新子计划，更新操作只允许关联已存在的计划")
+	ErrNodeDoesNotExist      = errors.New("计划树中包含一个或多个在数据库中不存在的计划")
+)
+
 // PlanRepository 定义了与计划模型相关的数据库操作接口
 // 这是为了让业务逻辑层依赖于抽象，而不是具体的数据库实现
 type PlanRepository interface {
@@ -118,7 +126,7 @@ func (r *gormPlanRepository) updatePlanTx(tx *gorm.DB, plan *models.Plan) error
 func (r *gormPlanRepository) validatePlanTree(tx *gorm.DB, plan *models.Plan) error {
 	// 1. 检查根节点
 	if plan == nil || plan.ID == 0 {
-		return fmt.Errorf("更新操作的目标计划无效或ID为0")
+		return ErrUpdateWithInvalidRoot
 	}
 	if len(plan.Tasks) > 0 && len(plan.SubPlans) > 0 {
 		return fmt.Errorf("计划 (ID: %d) 不能同时包含任务和子计划", plan.ID)
@@ -143,7 +151,7 @@ func (r *gormPlanRepository) validatePlanTree(tx *gorm.DB, plan *models.Plan) er
 			return fmt.Errorf("检查计划存在性时出错: %w", err)
 		}
 		if int(count) != len(idsToCheck) {
-			return fmt.Errorf("计划树中包含一个或多个在数据库中不存在的计划")
+			return ErrNodeDoesNotExist
 		}
 	}
 
@@ -156,7 +164,7 @@ func validateNodeAndDetectCycles(plan *models.Plan, allIDs, recursionStack map[u
 		return nil
 	}
 	if plan.ID == 0 {
-		return fmt.Errorf("错误：计划树中包含一个ID为0的新计划，更新操作只允许操作已存在的计划")
+		return ErrNewSubPlanInUpdate
 	}
 	if recursionStack[plan.ID] {
 		return fmt.Errorf("检测到循环引用：计划 (ID: %d) 是其自身的祖先", plan.ID)

internal/infra/repository/plan_repository_test.go

@@ -398,3 +398,400 @@ func cleanPlanForComparison(p *models.Plan) {
 		cleanPlanForComparison(p.SubPlans[i].ChildPlan)
 	}
 }
+
+// TestUpdatePlan_Validation 专注于测试 UpdatePlan 中前置检查逻辑的各种失败和成功场景。
+func TestUpdatePlan_Validation(t *testing.T) {
+	// 定义Go测试中使用的计划实体
+	planA := &models.Plan{Model: gorm.Model{ID: 1}, Name: "Plan A", ContentType: models.PlanContentTypeSubPlans}
+	planB := &models.Plan{Model: gorm.Model{ID: 2}, Name: "Plan B", ContentType: models.PlanContentTypeSubPlans}
+	planC := &models.Plan{Model: gorm.Model{ID: 3}, Name: "Plan C", ContentType: models.PlanContentTypeSubPlans}
+	planD := &models.Plan{Model: gorm.Model{ID: 4}, Name: "Plan D", ContentType: models.PlanContentTypeTasks}
+	planNew := &models.Plan{Model: gorm.Model{ID: 0}, Name: "New Plan"} // ID为0的新计划
+
+	type testCase struct {
+		name          string
+		setupDB       func(db *gorm.DB)
+		buildInput    func() *models.Plan // 修改为构建函数
+		expectedError string              // 保持 string 类型
+	}
+
+	testCases := []testCase{
+		{
+			name: "成功-合法的菱形依赖树",
+			setupDB: func(db *gorm.DB) {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 2}})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 3}})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 4}})
+			},
+			buildInput: func() *models.Plan {
+				planD.ContentType = models.PlanContentTypeTasks
+				planB.ContentType = models.PlanContentTypeSubPlans
+				planB.SubPlans = []models.SubPlan{{ChildPlanID: 4, ChildPlan: planD}}
+				planC.ContentType = models.PlanContentTypeSubPlans
+				planC.SubPlans = []models.SubPlan{{ChildPlanID: 4, ChildPlan: planD}}
+				planA.ContentType = models.PlanContentTypeSubPlans
+				planA.SubPlans = []models.SubPlan{
+					{ChildPlanID: 2, ChildPlan: planB},
+					{ChildPlanID: 3, ChildPlan: planC},
+				}
+				return planA
+			},
+			expectedError: "", // 期望没有错误
+		},
+		{
+			name:          "错误-根节点ID为零",
+			setupDB:       func(db *gorm.DB) {},
+			buildInput:    func() *models.Plan { return planNew },
+			expectedError: repository.ErrUpdateWithInvalidRoot.Error(),
+		},
+		{
+			name: "错误-子计划ID为零",
+			setupDB: func(db *gorm.DB) {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}})
+			},
+			buildInput: func() *models.Plan {
+				planA.ContentType = models.PlanContentTypeSubPlans
+				planA.SubPlans = []models.SubPlan{{ChildPlan: planNew}}
+				return planA
+			},
+			expectedError: repository.ErrNewSubPlanInUpdate.Error(),
+		},
+		{
+			name: "错误-节点在数据库中不存在",
+			setupDB: func(db *gorm.DB) {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 2}})
+			},
+			buildInput: func() *models.Plan {
+				planA.ContentType = models.PlanContentTypeSubPlans
+				planA.SubPlans = []models.SubPlan{
+					{ChildPlanID: 2, ChildPlan: planB},
+					{ChildPlanID: 3, ChildPlan: planC}, // C 不存在
+				}
+				return planA
+			},
+			expectedError: repository.ErrNodeDoesNotExist.Error(),
+		},
+		{
+			name: "错误-简单循环引用(A->B->A)",
+			setupDB: func(db *gorm.DB) {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 2}})
+			},
+			buildInput: func() *models.Plan {
+				planA.ContentType = models.PlanContentTypeSubPlans
+				planA.SubPlans = []models.SubPlan{{ChildPlanID: 2, ChildPlan: planB}}
+				planB.ContentType = models.PlanContentTypeSubPlans
+				planB.SubPlans = []models.SubPlan{{ChildPlanID: 1, ChildPlan: planA}}
+				return planA
+			},
+			expectedError: "检测到循环引用：计划 (ID: 1)",
+		},
+		{
+			name: "错误-复杂循环引用(A->B->C->A)",
+			setupDB: func(db *gorm.DB) {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 2}})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 3}})
+			},
+			buildInput: func() *models.Plan {
+				planA.ContentType = models.PlanContentTypeSubPlans
+				planA.SubPlans = []models.SubPlan{{ChildPlanID: 2, ChildPlan: planB}}
+				planB.ContentType = models.PlanContentTypeSubPlans
+				planB.SubPlans = []models.SubPlan{{ChildPlanID: 3, ChildPlan: planC}}
+				planC.ContentType = models.PlanContentTypeSubPlans
+				planC.SubPlans = []models.SubPlan{{ChildPlanID: 1, ChildPlan: planA}}
+				return planA
+			},
+			expectedError: "检测到循环引用：计划 (ID: 1)",
+		},
+		{
+			name: "错误-自引用(A->A)",
+			setupDB: func(db *gorm.DB) {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}})
+			},
+			buildInput: func() *models.Plan {
+				planA.ContentType = models.PlanContentTypeSubPlans
+				planA.SubPlans = []models.SubPlan{{ChildPlanID: 1, ChildPlan: planA}}
+				return planA
+			},
+			expectedError: "检测到循环引用：计划 (ID: 1)",
+		},
+		{
+			name: "错误-根节点内容混合",
+			setupDB: func(db *gorm.DB) {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 2}})
+			},
+			buildInput: func() *models.Plan {
+				planA.ContentType = models.PlanContentTypeSubPlans
+				planA.SubPlans = []models.SubPlan{{ChildPlanID: 2, ChildPlan: planB}}
+				planA.Tasks = []models.Task{{Name: "A's Task"}}
+				return planA
+			},
+			expectedError: "不能同时包含任务和子计划",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			// 1. 为每个测试用例重置基础对象的状态
+			*planA = models.Plan{Model: gorm.Model{ID: 1}, Name: "Plan A"}
+			*planB = models.Plan{Model: gorm.Model{ID: 2}, Name: "Plan B"}
+			*planC = models.Plan{Model: gorm.Model{ID: 3}, Name: "Plan C"}
+			*planD = models.Plan{Model: gorm.Model{ID: 4}, Name: "Plan D"}
+			*planNew = models.Plan{Model: gorm.Model{ID: 0}, Name: "New Plan"}
+
+			// 2. 设置数据库
+			db := setupTestDB(t)
+			sqlDB, _ := db.DB()
+			defer sqlDB.Close()
+			tc.setupDB(db)
+
+			// 3. 在对象重置后，构建本次测试需要的输入结构
+			input := tc.buildInput()
+
+			// 4. 执行测试
+			repo := repository.NewGormPlanRepository(db)
+			err := repo.UpdatePlan(input)
+
+			// 5. 断言结果
+			if tc.expectedError != "" {
+				assert.Error(t, err)
+				assert.Contains(t, err.Error(), tc.expectedError)
+			} else {
+				assert.NoError(t, err)
+			}
+		})
+	}
+}
+
+// TestUpdatePlan_Reconciliation 专注于测试 UpdatePlan 成功执行后，数据库状态是否与预期一致。
+func TestUpdatePlan_Reconciliation(t *testing.T) {
+	type testCase struct {
+		name       string
+		setupDB    func(db *gorm.DB) (rootPlanID uint)
+		buildInput func(db *gorm.DB) *models.Plan
+		verifyDB   func(t *testing.T, db *gorm.DB, rootPlanID uint)
+	}
+
+	testCases := []testCase{
+		{
+			name: "任务协调-新增一个任务",
+			setupDB: func(db *gorm.DB) uint {
+				plan := models.Plan{Model: gorm.Model{ID: 1}, Name: "Plan With Tasks", ContentType: models.PlanContentTypeTasks}
+				db.Create(&plan)
+				db.Create(&models.Task{PlanID: 1, Name: "Task 1", ExecutionOrder: 1})
+				return 1
+			},
+			buildInput: func(db *gorm.DB) *models.Plan {
+				return &models.Plan{
+					Model:       gorm.Model{ID: 1},
+					Name:        "Plan With Tasks",
+					ContentType: models.PlanContentTypeTasks,
+					Tasks: []models.Task{
+						{Model: gorm.Model{ID: 1}, PlanID: 1, Name: "Task 1", ExecutionOrder: 1},
+						{Name: "New Task 2", ExecutionOrder: 2},
+					},
+				}
+			},
+			verifyDB: func(t *testing.T, db *gorm.DB, rootPlanID uint) {
+				var finalPlan models.Plan
+				db.Preload("Tasks").First(&finalPlan, rootPlanID)
+				assert.Len(t, finalPlan.Tasks, 2)
+				assert.Equal(t, "New Task 2", finalPlan.Tasks[1].Name)
+			},
+		},
+		{
+			name: "任务协调-删除一个任务",
+			setupDB: func(db *gorm.DB) uint {
+				plan := models.Plan{Model: gorm.Model{ID: 1}, Name: "Plan With Tasks", ContentType: models.PlanContentTypeTasks}
+				db.Create(&plan)
+				db.Create(&models.Task{Model: gorm.Model{ID: 10}, PlanID: 1, Name: "Task 1", ExecutionOrder: 1})
+				db.Create(&models.Task{Model: gorm.Model{ID: 11}, PlanID: 1, Name: "Task to Delete", ExecutionOrder: 2})
+				return 1
+			},
+			buildInput: func(db *gorm.DB) *models.Plan {
+				return &models.Plan{
+					Model:       gorm.Model{ID: 1},
+					Name:        "Plan With Tasks",
+					ContentType: models.PlanContentTypeTasks,
+					Tasks: []models.Task{
+						{Model: gorm.Model{ID: 10}, PlanID: 1, Name: "Task 1", ExecutionOrder: 1},
+					},
+				}
+			},
+			verifyDB: func(t *testing.T, db *gorm.DB, rootPlanID uint) {
+				var tasks []models.Task
+				db.Where("plan_id = ?", rootPlanID).Find(&tasks)
+				assert.Len(t, tasks, 1)
+				var count int64
+				db.Model(&models.Task{}).Where("id = ?", 11).Count(&count)
+				assert.Equal(t, int64(0), count, "被删除的任务不应再存在")
+			},
+		},
+		{
+			name: "任务协调-更新并重排序任务",
+			setupDB: func(db *gorm.DB) uint {
+				plan := models.Plan{Model: gorm.Model{ID: 1}, Name: "Plan", ContentType: models.PlanContentTypeTasks}
+				db.Create(&plan)
+				db.Create(&models.Task{Model: gorm.Model{ID: 10}, PlanID: 1, Name: "A", ExecutionOrder: 1})
+				db.Create(&models.Task{Model: gorm.Model{ID: 11}, PlanID: 1, Name: "B", ExecutionOrder: 2})
+				return 1
+			},
+			buildInput: func(db *gorm.DB) *models.Plan {
+				return &models.Plan{
+					Model:       gorm.Model{ID: 1},
+					Name:        "Plan",
+					ContentType: models.PlanContentTypeTasks,
+					Tasks: []models.Task{
+						{Model: gorm.Model{ID: 11}, PlanID: 1, Name: "B Updated", ExecutionOrder: 1},
+						{Model: gorm.Model{ID: 10}, PlanID: 1, Name: "A", ExecutionOrder: 2},
+					},
+				}
+			},
+			verifyDB: func(t *testing.T, db *gorm.DB, rootPlanID uint) {
+				var finalPlan models.Plan
+				db.Preload("Tasks", func(db *gorm.DB) *gorm.DB {
+					return db.Order("execution_order")
+				}).First(&finalPlan, rootPlanID)
+				assert.Len(t, finalPlan.Tasks, 2)
+				assert.Equal(t, "B Updated", finalPlan.Tasks[0].Name)
+				assert.Equal(t, uint(11), finalPlan.Tasks[0].ID)
+			},
+		},
+		{
+			name: "子计划协调-新增一个关联",
+			setupDB: func(db *gorm.DB) uint {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}, Name: "Parent", ContentType: models.PlanContentTypeSubPlans})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 2}, Name: "Existing Child"})
+				return 1
+			},
+			buildInput: func(db *gorm.DB) *models.Plan {
+				return &models.Plan{
+					Model:       gorm.Model{ID: 1},
+					Name:        "Parent",
+					ContentType: models.PlanContentTypeSubPlans,
+					SubPlans:    []models.SubPlan{{ChildPlanID: 2}},
+				}
+			},
+			verifyDB: func(t *testing.T, db *gorm.DB, rootPlanID uint) {
+				var links []models.SubPlan
+				db.Where("parent_plan_id = ?", rootPlanID).Find(&links)
+				assert.Len(t, links, 1)
+				assert.Equal(t, uint(2), links[0].ChildPlanID)
+			},
+		},
+		{
+			name: "子计划协调-删除一个关联",
+			setupDB: func(db *gorm.DB) uint {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}, Name: "Parent", ContentType: models.PlanContentTypeSubPlans})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 2}, Name: "Child To Unlink"})
+				db.Create(&models.SubPlan{ParentPlanID: 1, ChildPlanID: 2})
+				return 1
+			},
+			buildInput: func(db *gorm.DB) *models.Plan {
+				return &models.Plan{
+					Model:       gorm.Model{ID: 1},
+					Name:        "Parent",
+					ContentType: models.PlanContentTypeSubPlans,
+					SubPlans:    []models.SubPlan{},
+				}
+			},
+			verifyDB: func(t *testing.T, db *gorm.DB, rootPlanID uint) {
+				var linkCount int64
+				db.Model(&models.SubPlan{}).Where("parent_plan_id = ?", rootPlanID).Count(&linkCount)
+				assert.Equal(t, int64(0), linkCount)
+
+				var planCount int64
+				db.Model(&models.Plan{}).Where("id = ?", 2).Count(&planCount)
+				assert.Equal(t, int64(1), planCount, "子计划本身不应被删除")
+			},
+		},
+		{
+			name: "类型转换-从任务切换到子计划",
+			setupDB: func(db *gorm.DB) uint {
+				plan := models.Plan{Model: gorm.Model{ID: 1}, Name: "Plan", ContentType: models.PlanContentTypeTasks}
+				db.Create(&plan)
+				db.Create(&models.Task{PlanID: 1, Name: "Old Task"})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 10}, Name: "New Child"})
+				return 1
+			},
+			buildInput: func(db *gorm.DB) *models.Plan {
+				return &models.Plan{
+					Model:       gorm.Model{ID: 1},
+					Name:        "Plan",
+					ContentType: models.PlanContentTypeSubPlans,
+					SubPlans:    []models.SubPlan{{ChildPlanID: 10}},
+				}
+			},
+			verifyDB: func(t *testing.T, db *gorm.DB, rootPlanID uint) {
+				var taskCount int64
+				db.Model(&models.Task{}).Where("plan_id = ?", rootPlanID).Count(&taskCount)
+				assert.Equal(t, int64(0), taskCount, "旧任务应被清理")
+
+				var linkCount int64
+				db.Model(&models.SubPlan{}).Where("parent_plan_id = ?", rootPlanID).Count(&linkCount)
+				assert.Equal(t, int64(1), linkCount, "新关联应被创建")
+			},
+		},
+		{
+			name: "递归更新-深层节点的变更",
+			setupDB: func(db *gorm.DB) uint {
+				db.Create(&models.Plan{Model: gorm.Model{ID: 1}, Name: "A", ContentType: models.PlanContentTypeSubPlans})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 2}, Name: "B", ContentType: models.PlanContentTypeSubPlans})
+				db.Create(&models.Plan{Model: gorm.Model{ID: 3}, Name: "C", ContentType: models.PlanContentTypeTasks})
+				db.Create(&models.SubPlan{Model: gorm.Model{ID: 101}, ParentPlanID: 1, ChildPlanID: 2, ExecutionOrder: 1})
+				db.Create(&models.SubPlan{Model: gorm.Model{ID: 102}, ParentPlanID: 2, ChildPlanID: 3, ExecutionOrder: 1})
+				return 1
+			},
+			buildInput: func(db *gorm.DB) *models.Plan {
+				planC := &models.Plan{Model: gorm.Model{ID: 3}, Name: "C Updated", ContentType: models.PlanContentTypeTasks}
+				planB := &models.Plan{
+					Model:       gorm.Model{ID: 2},
+					Name:        "B",
+					ContentType: models.PlanContentTypeSubPlans,
+					SubPlans:    []models.SubPlan{{Model: gorm.Model{ID: 102}, ParentPlanID: 2, ChildPlanID: 3, ChildPlan: planC, ExecutionOrder: 2}},
+				}
+				planA := &models.Plan{
+					Model:       gorm.Model{ID: 1},
+					Name:        "A Updated",
+					ContentType: models.PlanContentTypeSubPlans,
+					SubPlans:    []models.SubPlan{{Model: gorm.Model{ID: 101}, ParentPlanID: 1, ChildPlanID: 2, ChildPlan: planB, ExecutionOrder: 1}},
+				}
+				return planA
+			},
+			verifyDB: func(t *testing.T, db *gorm.DB, rootPlanID uint) {
+				var finalA, finalC models.Plan
+				var finalLinkB models.SubPlan
+
+				db.First(&finalA, 1)
+				assert.Equal(t, "A Updated", finalA.Name)
+
+				db.First(&finalLinkB, 102)
+				assert.Equal(t, 2, finalLinkB.ExecutionOrder)
+
+				db.First(&finalC, 3)
+				assert.Equal(t, "C Updated", finalC.Name)
+			},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			db := setupTestDB(t)
+			sqlDB, _ := db.DB()
+			defer sqlDB.Close()
+
+			rootID := tc.setupDB(db)
+			input := tc.buildInput(db)
+
+			repo := repository.NewGormPlanRepository(db)
+			err := repo.UpdatePlan(input)
+			assert.NoError(t, err)
+
+			tc.verifyDB(t, db, rootID)
+		})
+	}
+}