完成编辑变量表的单元测试

DMS.Application/Interfaces/IVariableTableAppService.cs

@@ -10,7 +10,7 @@ namespace DMS.Application.Interfaces
         Task<VariableTableDto> GetVariableTableByIdAsync(int id);
         Task<List<VariableTableDto>> GetAllVariableTablesAsync();
         Task<VariableTableDto> CreateVariableTableAsync(CreateVariableTableWithMenuDto createDto);
-        Task UpdateVariableTableAsync(VariableTableDto variableTableDto);
+        Task<int> UpdateVariableTableAsync(VariableTableDto variableTableDto);
         Task<bool> DeleteVariableTableAsync(int id);
     }
 }

DMS.Application/Services/VariableTableAppService.cs

@@ -106,11 +106,30 @@ namespace DMS.Application.Services
         /// 异步更新变量表。
         /// </summary>
         /// <param name="variableTableDto">要更新的变量表数据传输对象。</param>
-        /// <returns>表示异步操作的任务。</returns>
-        public async Task UpdateVariableTableAsync(VariableTableDto variableTableDto)
+        /// <returns>受影响的行数。</returns>
+        /// <exception cref="ApplicationException">如果找不到变量表。</exception>
+        public async Task<int> UpdateVariableTableAsync(VariableTableDto variableTableDto)
         {
-            var variableTable = _mapper.Map<VariableTable>(variableTableDto);
-            await _repositoryManager.VariableTables.UpdateAsync(variableTable);
+            try
+            {
+                await _repositoryManager.BeginTranAsync();
+                var variableTable = await _repositoryManager.VariableTables.GetByIdAsync(variableTableDto.Id);
+                if (variableTable == null)
+                {
+                    throw new ApplicationException($"VariableTable with ID {variableTableDto.Id} not found.");
+                }
+
+                _mapper.Map(variableTableDto, variableTable);
+                int res = await _repositoryManager.VariableTables.UpdateAsync(variableTable);
+                await _repositoryManager.CommitAsync();
+                return res;
+            }
+            catch (Exception ex)
+            {
+                await _repositoryManager.RollbackAsync();
+                // 可以在此记录日志
+                throw new ApplicationException($"更新变量表时发生错误，操作已回滚,错误信息:{ex.Message}", ex);
+            }
         }
 
         /// <summary>

DMS.Infrastructure.UnitTests/Services/VariableTableAppServiceTest.cs

@@ -52,4 +52,34 @@ public class VariableTableAppServiceTest : BaseServiceTest
         var deletedTable = await _variableTableAppService.GetVariableTableByIdAsync(createdVariableTable.Id);
         Assert.Null(deletedTable);
     }
+
+    [Fact]
+    public async Task UpdateVariableTableAsyncTest()
+    {
+        // Arrange: Create a variable table first
+        var createDto = new CreateVariableTableWithMenuDto()
+        {
+            VariableTable = FakerHelper.FakeVariableTableDto(),
+            Menu = FakerHelper.FakeCreateMenuDto(),
+            DeviceId = 5 // Assuming a device with ID 5 exists for testing
+        };
+        var createdVariableTable = await _variableTableAppService.CreateVariableTableAsync(createDto);
+        Assert.NotEqual(createdVariableTable.Id, 0);
+
+        // Modify some properties of the DTO
+        createdVariableTable.Name = "Updated Variable Table Name";
+        createdVariableTable.Description = "This is an updated description.";
+
+        // Act: Update the variable table
+        var affectedRows = await _variableTableAppService.UpdateVariableTableAsync(createdVariableTable);
+
+        // Assert: Verify update was successful
+        Assert.Equal(1, affectedRows);
+
+        // Retrieve the updated variable table to confirm changes
+        var updatedTable = await _variableTableAppService.GetVariableTableByIdAsync(createdVariableTable.Id);
+        Assert.NotNull(updatedTable);
+        Assert.Equal("Updated Variable Table Name", updatedTable.Name);
+        Assert.Equal("This is an updated description.", updatedTable.Description);
+    }
 }