fix

WebApi.Test/Transaction/TransactionStatisticsServiceTest.cs

@@ -69,6 +69,77 @@ public class TransactionStatisticsServiceTest : BaseTest
         result["2024-01-01"].expense.Should().Be(150m);
     }
 
+    [Fact]
+    public async Task GetDailyStatisticsAsync_月份为0查询全年()
+    {
+        // Arrange
+        var year = 2024;
+        var month = 0; // 0 表示查询全年
+        var testData = new List<TransactionRecord>
+        {
+            // 1月
+            new() { Id=1, OccurredAt=new DateTime(2024,1,15), Amount=-100m, Type=TransactionType.Expense },
+            new() { Id=2, OccurredAt=new DateTime(2024,1,20), Amount=5000m, Type=TransactionType.Income },
+            // 6月
+            new() { Id=3, OccurredAt=new DateTime(2024,6,10), Amount=-200m, Type=TransactionType.Expense },
+            new() { Id=4, OccurredAt=new DateTime(2024,6,15), Amount=3000m, Type=TransactionType.Income },
+            // 12月
+            new() { Id=5, OccurredAt=new DateTime(2024,12,25), Amount=-300m, Type=TransactionType.Expense },
+            new() { Id=6, OccurredAt=new DateTime(2024,12,31), Amount=2000m, Type=TransactionType.Income }
+        };
+
+        ConfigureQueryAsync(testData);
+
+        // Act
+        var result = await _service.GetDailyStatisticsAsync(year, month);
+
+        // Assert - 应包含全年各个月份的数据
+        result.Should().ContainKey("2024-01-15");
+        result.Should().ContainKey("2024-06-10");
+        result.Should().ContainKey("2024-12-31");
+        result["2024-01-15"].expense.Should().Be(100m);
+        result["2024-06-10"].expense.Should().Be(200m);
+        result["2024-12-31"].income.Should().Be(2000m);
+    }
+
+    [Fact]
+    public async Task GetDailyStatisticsAsync_月份为0不应抛出异常()
+    {
+        // Arrange
+        var year = 2026;
+        var month = 0;
+        ConfigureQueryAsync(new List<TransactionRecord>());
+
+        // Act & Assert - 不应抛出 ArgumentOutOfRangeException
+        var act = async () => await _service.GetDailyStatisticsAsync(year, month);
+        await act.Should().NotThrowAsync<ArgumentOutOfRangeException>();
+    }
+
+    [Fact]
+    public async Task GetDailyStatisticsAsync_包含存款分类统计()
+    {
+        // Arrange
+        var year = 2024;
+        var month = 1;
+        var savingClassify = "股票,基金"; // 存款分类
+        var testData = new List<TransactionRecord>
+        {
+            new() { Id=1, OccurredAt=new DateTime(2024,1,1), Amount=-100m, Type=TransactionType.Expense, Classify="餐饮" },
+            new() { Id=2, OccurredAt=new DateTime(2024,1,1), Amount=-500m, Type=TransactionType.Expense, Classify="股票" },
+            new() { Id=3, OccurredAt=new DateTime(2024,1,1), Amount=-300m, Type=TransactionType.Expense, Classify="基金" }
+        };
+
+        ConfigureQueryAsync(testData);
+
+        // Act
+        var result = await _service.GetDailyStatisticsAsync(year, month, savingClassify);
+
+        // Assert
+        result.Should().ContainKey("2024-01-01");
+        result["2024-01-01"].saving.Should().Be(800m); // 股票500 + 基金300
+        result["2024-01-01"].expense.Should().Be(900m); // 总支出
+    }
+
     [Fact]
     public async Task GetTrendStatisticsAsync_多个月份()
     {