补考、缓考成绩自动替换

tests/Jiaowu.Api.Tests/GradeCalculatorTests.cs

@@ -55,10 +55,18 @@ public sealed class GradeCalculatorTests
 
     [Theory]
     [InlineData(GradeExamStatus.Absent)]
-    [InlineData(GradeExamStatus.Deferred)]
     [InlineData(GradeExamStatus.Exempt)]
     public void Exceptional_exam_status_has_no_numeric_total(GradeExamStatus status)
     {
         Assert.Null(GradeCalculator.CalculateTotal(90, 90, [], 30, 70, [], status));
     }
+
+    [Fact]
+    public void Deferred_exam_uses_regular_and_final_scores_like_normal_exam()
+    {
+        var total = GradeCalculator.CalculateTotal(
+            83, 91, [], 30, 70, [], GradeExamStatus.Deferred);
+
+        Assert.Equal(88.6m, total);
+    }
 }

tests/Jiaowu.Api.Tests/TeachingWorkflowRosterTests.cs

@@ -234,6 +234,19 @@ public sealed class TeachingWorkflowRosterTests
             CancellationToken.None);
         Assert.IsType<CreatedResult>(gradeResult);
         Assert.Equal(1, await db.GradeRecords.CountAsync());
+        var originalGradeRecord = await db.GradeRecords.SingleAsync();
+        originalGradeRecord.RegularScore = 80;
+        await db.SaveChangesAsync();
+
+        var deferredExam = new DeferredExam
+        {
+            StudentId = student.Id,
+            TeachingTaskId = task.Id,
+            Reason = "病假",
+            Status = ApprovalStatus.Approved
+        };
+        db.DeferredExams.Add(deferredExam);
+        await db.SaveChangesAsync();
 
         var makeupPlan = new MakeupExamPlan
         {
@@ -256,7 +269,10 @@ public sealed class TeachingWorkflowRosterTests
                 new MakeupExamEnrollment
                 {
                     StudentId = student.Id,
-                    Reason = MakeupReason.Failed
+                    Reason = MakeupReason.DeferredApproved,
+                    // Simulate an existing deferred-exam enrollment that was
+                    // created before SourceGradeRecordId was persisted.
+                    SourceDeferredExamId = deferredExam.Id
                 }
             ]
         };
@@ -279,6 +295,10 @@ public sealed class TeachingWorkflowRosterTests
                 .Where(x => x.MakeupExamSessionId == makeupSession.Id)
                 .Select(x => x.MakeupScore)
                 .SingleAsync());
+        var replacement = await db.GradeRecords.SingleAsync();
+        Assert.Equal(77, replacement.TotalScore);
+        Assert.Equal(GradeExamStatus.Deferred, replacement.ExamStatus);
+        Assert.Equal("缓考成绩（期末75分，已按正常权重计入平时分）", replacement.Notes);
 
         var selections = new CourseSelectionsController(db, scope);
         Assert.Single(ReadItems(await selections.GetMyTeachingTasks(