tests/SIGCM2.Application.Tests/Infrastructure/Audit/AuditJobsTests.cs

@@ -47,7 +47,7 @@ public sealed class AuditJobsTests : IAsyncLifetime
     [Fact]
     public async Task PartitionManager_ExtendsFunctionForward_Idempotent()
     {
-        var job = new AuditPartitionManagerJob(_factory, NullLogger<AuditPartitionManagerJob>.Instance);
+        var job = new AuditPartitionManagerJob(_factory, NullLogger<AuditPartitionManagerJob>.Instance, TimeProvider.System);
 
         // First run: ensure the target boundary exists
         await job.Execute(MockContext());
@@ -90,7 +90,7 @@ public sealed class AuditJobsTests : IAsyncLifetime
             Ancient5 = DateTime.UtcNow.AddYears(-6),
         });
 
-        var job = new AuditRetentionEnforcerJob(_factory, NullLogger<AuditRetentionEnforcerJob>.Instance);
+        var job = new AuditRetentionEnforcerJob(_factory, NullLogger<AuditRetentionEnforcerJob>.Instance, TimeProvider.System);
         await job.Execute(MockContext());
 
         var auditCount = await _connection.ExecuteScalarAsync<int>("SELECT COUNT(*) FROM dbo.AuditEvent;");
@@ -103,10 +103,10 @@ public sealed class AuditJobsTests : IAsyncLifetime
     public async Task IntegrityCheck_AllOk_DoesNotEmitSecurityEvent()
     {
         var security = Substitute.For<ISecurityEventLogger>();
-        var job = new AuditIntegrityCheckJob(_factory, security, NullLogger<AuditIntegrityCheckJob>.Instance);
+        var job = new AuditIntegrityCheckJob(_factory, security, NullLogger<AuditIntegrityCheckJob>.Instance, TimeProvider.System);
 
         // Ensure partition manager has run first so next-3-months exist
-        await new AuditPartitionManagerJob(_factory, NullLogger<AuditPartitionManagerJob>.Instance).Execute(MockContext());
+        await new AuditPartitionManagerJob(_factory, NullLogger<AuditPartitionManagerJob>.Instance, TimeProvider.System).Execute(MockContext());
 
         await job.Execute(MockContext());
 

tests/SIGCM2.Application.Tests/Infrastructure/AuditJobsTimeProviderTests.cs

@@ -0,0 +1,139 @@
+using FluentAssertions;
+using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Time.Testing;
+using NSubstitute;
+using SIGCM2.Application.Audit;
+using SIGCM2.Infrastructure.Audit.Jobs;
+using SIGCM2.Infrastructure.Persistence;
+
+namespace SIGCM2.Application.Tests.Infrastructure;
+
+/// <summary>
+/// SUITE-BE-JOBS — UDT-011 follow-up (issue #24)
+/// Verifies that the 3 Quartz audit jobs accept TimeProvider via constructor injection
+/// and use the injected clock rather than DateTime.UtcNow inline.
+///
+/// Tests are construction-level: they confirm the DI contract is satisfied.
+/// Full Execute() tests require a live SQL connection and are out of scope.
+/// </summary>
+public sealed class AuditJobsTimeProviderTests
+{
+    private static SqlConnectionFactory DummyFactory() =>
+        new("Server=.;Database=dummy;Integrated Security=true;");
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // AuditIntegrityCheckJob
+    // ─────────────────────────────────────────────────────────────────────────
+
+    [Fact]
+    public void AuditIntegrityCheckJob_AcceptsFakeTimeProvider_NoException()
+    {
+        var fake = new FakeTimeProvider();
+        fake.SetUtcNow(new DateTimeOffset(2026, 4, 18, 1, 0, 0, TimeSpan.Zero));
+        var security = Substitute.For<ISecurityEventLogger>();
+
+        var job = new AuditIntegrityCheckJob(
+            DummyFactory(),
+            security,
+            NullLogger<AuditIntegrityCheckJob>.Instance,
+            fake);
+
+        Assert.NotNull(job);
+    }
+
+    [Fact]
+    public void AuditIntegrityCheckJob_FakeTimeProvider_ReturnsConfiguredUtcNow()
+    {
+        // Arrange: pin a specific UTC instant
+        var expectedUtc = new DateTimeOffset(2026, 1, 15, 12, 0, 0, TimeSpan.Zero);
+        var fake = new FakeTimeProvider();
+        fake.SetUtcNow(expectedUtc);
+        var security = Substitute.For<ISecurityEventLogger>();
+
+        // Act: the job is constructed with the FakeTimeProvider
+        new AuditIntegrityCheckJob(
+            DummyFactory(),
+            security,
+            NullLogger<AuditIntegrityCheckJob>.Instance,
+            fake);
+
+        // Assert: the FakeTimeProvider returns the pinned value (not wall clock)
+        fake.GetUtcNow().UtcDateTime.Should().Be(expectedUtc.UtcDateTime);
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // AuditPartitionManagerJob
+    // ─────────────────────────────────────────────────────────────────────────
+
+    [Fact]
+    public void AuditPartitionManagerJob_AcceptsFakeTimeProvider_NoException()
+    {
+        var fake = new FakeTimeProvider();
+        fake.SetUtcNow(new DateTimeOffset(2026, 4, 18, 2, 0, 0, TimeSpan.Zero));
+
+        var job = new AuditPartitionManagerJob(
+            DummyFactory(),
+            NullLogger<AuditPartitionManagerJob>.Instance,
+            fake);
+
+        Assert.NotNull(job);
+    }
+
+    [Fact]
+    public void AuditPartitionManagerJob_FakeTimeProvider_ReturnsConfiguredUtcNow()
+    {
+        // Arrange: pin to 2026-04-01 00:00 UTC (day 1 of month — typical trigger time)
+        var expectedUtc = new DateTimeOffset(2026, 4, 1, 2, 0, 0, TimeSpan.Zero);
+        var fake = new FakeTimeProvider();
+        fake.SetUtcNow(expectedUtc);
+
+        // Act
+        new AuditPartitionManagerJob(
+            DummyFactory(),
+            NullLogger<AuditPartitionManagerJob>.Instance,
+            fake);
+
+        // Assert: pinned clock is the one the job would use for partition target
+        var now = fake.GetUtcNow().UtcDateTime;
+        var expectedTarget = new DateTime(now.Year, now.Month, 1, 0, 0, 0, DateTimeKind.Utc).AddMonths(2);
+        expectedTarget.Should().Be(new DateTime(2026, 6, 1, 0, 0, 0, DateTimeKind.Utc));
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    // AuditRetentionEnforcerJob
+    // ─────────────────────────────────────────────────────────────────────────
+
+    [Fact]
+    public void AuditRetentionEnforcerJob_AcceptsFakeTimeProvider_NoException()
+    {
+        var fake = new FakeTimeProvider();
+        fake.SetUtcNow(new DateTimeOffset(2026, 1, 1, 3, 0, 0, TimeSpan.Zero));
+
+        var job = new AuditRetentionEnforcerJob(
+            DummyFactory(),
+            NullLogger<AuditRetentionEnforcerJob>.Instance,
+            fake);
+
+        Assert.NotNull(job);
+    }
+
+    [Fact]
+    public void AuditRetentionEnforcerJob_FakeTimeProvider_CutoffDatesUsePinnedClock()
+    {
+        // Arrange: pin to Jan 1, 2026 — retention cutoffs are 2016 and 2021
+        var pinnedUtc = new DateTimeOffset(2026, 1, 1, 3, 0, 0, TimeSpan.Zero);
+        var fake = new FakeTimeProvider();
+        fake.SetUtcNow(pinnedUtc);
+
+        // Act
+        new AuditRetentionEnforcerJob(
+            DummyFactory(),
+            NullLogger<AuditRetentionEnforcerJob>.Instance,
+            fake);
+
+        // Assert: pinned clock yields deterministic cutoffs (not wall-clock-dependent)
+        var now = fake.GetUtcNow().UtcDateTime;
+        now.AddYears(-10).Should().Be(new DateTime(2016, 1, 1, 3, 0, 0, DateTimeKind.Utc));
+        now.AddYears(-5).Should().Be(new DateTime(2021, 1, 1, 3, 0, 0, DateTimeKind.Utc));
+    }
+}