fix

WebApi.Test/Application/BudgetApplicationTest.cs

@@ -316,4 +316,105 @@ public class BudgetApplicationTest : BaseApplicationTest
     }
 
     #endregion
+
+    #region GetCategoryStatsAsync Tests
+
+    [Fact]
+    public async Task GetCategoryStatsAsync_Should_Include_Trend_And_Description_In_Month_Stats()
+    {
+        // Arrange
+        var referenceDate = new DateTime(2026, 2, 14);
+        var category = BudgetCategory.Expense;
+        
+        var serviceResponse = new BudgetCategoryStats
+        {
+            Month = new BudgetStatsDto
+            {
+                Limit = 3000,
+                Current = 1200,
+                Rate = 40,
+                Trend = new List<decimal?> { 100, 200, 300, 400, 500, null, null },
+                Description = "<table><tr><th>日期</th><th>金额</th></tr></table>"
+            },
+            Year = new BudgetStatsDto
+            {
+                Limit = 36000,
+                Current = 5000,
+                Rate = 13.89m,
+                Trend = new List<decimal?> { 1000, 2000, 3000, null },
+                Description = "<table><tr><th>月份</th><th>金额</th></tr></table>"
+            }
+        };
+        
+        _budgetService.GetCategoryStatsAsync(category, referenceDate).Returns(serviceResponse);
+
+        // Act
+        var result = await _application.GetCategoryStatsAsync(category, referenceDate);
+
+        // Assert
+        result.Should().NotBeNull();
+        
+        // 验证 Month 数据
+        result.Month.Limit.Should().Be(3000);
+        result.Month.Current.Should().Be(1200);
+        result.Month.Remaining.Should().Be(1800);
+        result.Month.UsagePercentage.Should().Be(40);
+        result.Month.Trend.Should().NotBeNull();
+        result.Month.Trend.Should().HaveCount(7);
+        result.Month.Trend[0].Should().Be(100);
+        result.Month.Trend[5].Should().BeNull();
+        result.Month.Description.Should().NotBeEmpty();
+        result.Month.Description.Should().Contain("<table>");
+    }
+
+    [Fact]
+    public async Task GetCategoryStatsAsync_Should_Include_Trend_And_Description_In_Year_Stats()
+    {
+        // Arrange
+        var referenceDate = new DateTime(2026, 2, 14);
+        var category = BudgetCategory.Income;
+        
+        var serviceResponse = new BudgetCategoryStats
+        {
+            Month = new BudgetStatsDto
+            {
+                Limit = 5000,
+                Current = 3000,
+                Rate = 60,
+                Trend = new List<decimal?> { 500, 1000, 1500, 2000, 2500, 3000 },
+                Description = "<p>月度收入明细</p>"
+            },
+            Year = new BudgetStatsDto
+            {
+                Limit = 60000,
+                Current = 10000,
+                Rate = 16.67m,
+                Trend = new List<decimal?> { 5000, 10000, null, null, null, null, null, null, null, null, null, null },
+                Description = "<p>年度收入明细</p>"
+            }
+        };
+        
+        _budgetService.GetCategoryStatsAsync(category, referenceDate).Returns(serviceResponse);
+
+        // Act
+        var result = await _application.GetCategoryStatsAsync(category, referenceDate);
+
+        // Assert
+        result.Should().NotBeNull();
+        
+        // 验证 Year 数据
+        result.Year.Limit.Should().Be(60000);
+        result.Year.Current.Should().Be(10000);
+        result.Year.Remaining.Should().Be(50000);
+        result.Year.UsagePercentage.Should().Be(16.67m);
+        result.Year.Trend.Should().NotBeNull();
+        result.Year.Trend.Should().HaveCount(12);
+        result.Year.Trend[0].Should().Be(5000);
+        result.Year.Trend[1].Should().Be(10000);
+        result.Year.Trend[2].Should().BeNull();
+        result.Year.Description.Should().NotBeEmpty();
+        result.Year.Description.Should().Contain("年度收入明细");
+    }
+
+    #endregion
 }