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Klausurschnitt-Vorjahresvergleich beim Hochstufen
CI / build-and-test (push) Canceled after 0s
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LearningGroup.PreviousGroupId wird von GroupRolloverService jetzt automatisch
gesetzt; neue Karte "Vorjahresvergleich" im Kurs-Tab Übersicht zeigt den
gepoolten Klausurdurchschnitt neben dem der Vorgängergruppe, sobald dort
Ergebnisse vorliegen.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
admin
2026-08-30 02:33:07 +02:00
co-authored by Claude Sonnet 5
parent b7c7d46ee4
commit 84c03962ef
8 changed files with 162 additions and 10 deletions
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LehrerApp.Desktop.Tests/GroupOverviewViewModelTests.cs
+86 -3
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@@ -12,10 +12,13 @@ public sealed class GroupOverviewViewModelTests
{
private static GroupOverviewViewModel NewVm(FakeLessons? lessons = null, FakeExams? exams = null,
FakeSessions? sessions = null, FakeEntries? entries = null, FakeStudents? students = null,
FakeDocumentation? documentation = null, FakeWorkTasks? tasks = null) =>
new(lessons ?? new FakeLessons(), exams ?? new FakeExams([]), sessions ?? new FakeSessions([]),
FakeDocumentation? documentation = null, FakeWorkTasks? tasks = null,
FakeResults? results = null, FakeGroups? groups = null) =>
new(lessons ?? new FakeLessons(), exams ?? new FakeExams([]), results ?? new FakeResults(),
sessions ?? new FakeSessions([]),
entries ?? new FakeEntries(), students ?? new FakeStudents([]), documentation ?? new FakeDocumentation(),
tasks ?? new FakeWorkTasks(), new AttendanceBalanceService(), new SchoolYearService());
tasks ?? new FakeWorkTasks(), groups ?? new FakeGroups([]), new AttendanceBalanceService(),
new GradingService(), new SchoolYearService());
private static (GroupOverviewViewModel Vm, FakeLessons Lessons, FakeExams Exams,
FakeSessions Sessions, FakeEntries Entries, FakeStudents Students, Guid GroupId) BuildScenario(
@@ -76,6 +79,86 @@ public sealed class GroupOverviewViewModelTests
Assert.Contains("Klassenarbeit 2", vm.NextExamLabel);
}
[Fact]
public void Vorjahresvergleich_OhneVerknuepfteVorgaengergruppe_BleibtVerborgen()
{
var groupId = Guid.NewGuid();
var groups = new FakeGroups([new LearningGroup { Id = groupId, GradingSystem = GradingSystem.Grades1To6 }]);
var vm = NewVm(groups: groups);
vm.Initialize(groupId, "Testkurs");
Assert.False(vm.HasYearComparison);
}
[Fact]
public void Vorjahresvergleich_VorgaengerOhneKlausurergebnisse_BleibtVerborgen()
{
var previousId = Guid.NewGuid();
var groupId = Guid.NewGuid();
var groups = new FakeGroups([
new LearningGroup { Id = groupId, GradingSystem = GradingSystem.Grades1To6, PreviousGroupId = previousId },
new LearningGroup { Id = previousId, GradingSystem = GradingSystem.Grades1To6 },
]);
var vm = NewVm(groups: groups);
vm.Initialize(groupId, "Testkurs");
Assert.False(vm.HasYearComparison);
}
[Fact]
public void Vorjahresvergleich_ZeigtDurchschnitteBeiderJahreAn()
{
var previousId = Guid.NewGuid();
var groupId = Guid.NewGuid();
var groups = new FakeGroups([
new LearningGroup { Id = groupId, GradingSystem = GradingSystem.Grades1To6, PreviousGroupId = previousId },
new LearningGroup { Id = previousId, GradingSystem = GradingSystem.Grades1To6 },
]);
var previousExam = new Exam { Id = Guid.NewGuid(), GroupId = previousId };
var currentExam = new Exam { Id = Guid.NewGuid(), GroupId = groupId };
var exams = new FakeExams([previousExam, currentExam]);
var results = new FakeResults();
results.Add(new ExamResult { ExamId = previousExam.Id, StudentId = Guid.NewGuid(), Grade = "2" });
results.Add(new ExamResult { ExamId = previousExam.Id, StudentId = Guid.NewGuid(), Grade = "4" });
results.Add(new ExamResult { ExamId = currentExam.Id, StudentId = Guid.NewGuid(), Grade = "1" });
// Abwesende und leere Ergebnisse fließen bewusst nicht in den Schnitt ein.
results.Add(new ExamResult { ExamId = currentExam.Id, StudentId = Guid.NewGuid(), Absent = true, Grade = "6" });
var vm = NewVm(exams: exams, results: results, groups: groups);
vm.Initialize(groupId, "Testkurs");
Assert.True(vm.HasYearComparison);
Assert.Contains("Dieses Jahr: Ø 1,0 (1 Klausuren)", vm.YearComparisonLabel);
Assert.Contains("Vorjahr: Ø 3,0 (2 Klausuren)", vm.YearComparisonLabel);
}
[Fact]
public void Vorjahresvergleich_OhneEigeneKlausurenZeigtNurVorjahr()
{
var previousId = Guid.NewGuid();
var groupId = Guid.NewGuid();
var groups = new FakeGroups([
new LearningGroup { Id = groupId, GradingSystem = GradingSystem.Grades1To6, PreviousGroupId = previousId },
new LearningGroup { Id = previousId, GradingSystem = GradingSystem.Grades1To6 },
]);
var previousExam = new Exam { Id = Guid.NewGuid(), GroupId = previousId };
var exams = new FakeExams([previousExam]);
var results = new FakeResults();
results.Add(new ExamResult { ExamId = previousExam.Id, StudentId = Guid.NewGuid(), Grade = "3" });
var vm = NewVm(exams: exams, results: results, groups: groups);
vm.Initialize(groupId, "Testkurs");
Assert.True(vm.HasYearComparison);
Assert.Contains("noch keine Klausur", vm.YearComparisonLabel);
}
[Fact]
public void Mitarbeit_OhneSitzungenZeigtHinweisOhneWarnung()
{