feat(audit): multi-value filters across ManagementService, CLI and Central UI

tests/ScadaLink.CentralUI.Tests/Components/Audit/AuditFilterBarTests.cs

@@ -77,12 +77,30 @@ public class AuditFilterBarTests : BunitContext
         cut.Find("[data-test=\"filter-apply\"]").Click();
 
         Assert.NotNull(captured);
-        // Task 8: the filter dimension is multi-value now; ToFilter still collapses
-        // the chip selection to a single-element list (Task 9 widens that).
         Assert.Equal(new[] { AuditChannel.ApiOutbound }, captured!.Channels);
         Assert.Equal("Plant-A-OPC", captured.Target);
     }
 
+    [Fact]
+    public void Apply_WithMultipleChannelChips_PassesAllSelectedChannels()
+    {
+        // Task 9: ToFilter no longer collapses the chip multi-select — every
+        // selected channel chip reaches the filter's Channels list.
+        AuditLogQueryFilter? captured = null;
+        var cut = Render<AuditFilterBar>(p => p
+            .Add(c => c.OnFilterChanged, EventCallback.Factory.Create<AuditLogQueryFilter>(this, f => captured = f)));
+
+        cut.Find("[data-test=\"chip-channel-ApiOutbound\"]").Click();
+        cut.Find("[data-test=\"chip-channel-Notification\"]").Click();
+        cut.Find("[data-test=\"filter-apply\"]").Click();
+
+        Assert.NotNull(captured);
+        Assert.NotNull(captured!.Channels);
+        Assert.Equal(2, captured.Channels!.Count);
+        Assert.Contains(AuditChannel.ApiOutbound, captured.Channels);
+        Assert.Contains(AuditChannel.Notification, captured.Channels);
+    }
+
     [Fact]
     public void Channel_Narrows_Kind_Options_When_Selected()
     {
@@ -119,8 +137,12 @@ public class AuditFilterBarTests : BunitContext
         cut.Find("[data-test=\"filter-apply\"]").Click();
 
         Assert.NotNull(captured);
-        // Single-value collapse contract (Task 8): Failed leads the non-success set.
-        Assert.Equal(new[] { AuditStatus.Failed }, captured!.Statuses);
+        // Task 9: Errors-only targets the full non-success set {Failed, Parked, Discarded}.
+        Assert.NotNull(captured!.Statuses);
+        Assert.Equal(3, captured.Statuses!.Count);
+        Assert.Contains(AuditStatus.Failed, captured.Statuses);
+        Assert.Contains(AuditStatus.Parked, captured.Statuses);
+        Assert.Contains(AuditStatus.Discarded, captured.Statuses);
 
         // Now pin an explicit Status chip — Errors-only must yield (chip wins).
         cut.Find("[data-test=\"chip-status-Delivered\"]").Click();
@@ -129,6 +151,26 @@ public class AuditFilterBarTests : BunitContext
         Assert.Equal(new[] { AuditStatus.Delivered }, captured!.Statuses);
     }
 
+    [Fact]
+    public void Apply_WithMultipleStatusChips_PassesAllSelectedStatuses()
+    {
+        // Task 9: multiple explicit Status chips all reach the filter — and they
+        // win over the Errors-only default.
+        AuditLogQueryFilter? captured = null;
+        var cut = Render<AuditFilterBar>(p => p
+            .Add(c => c.OnFilterChanged, EventCallback.Factory.Create<AuditLogQueryFilter>(this, f => captured = f)));
+
+        cut.Find("[data-test=\"chip-status-Delivered\"]").Click();
+        cut.Find("[data-test=\"chip-status-Failed\"]").Click();
+        cut.Find("[data-test=\"filter-apply\"]").Click();
+
+        Assert.NotNull(captured);
+        Assert.NotNull(captured!.Statuses);
+        Assert.Equal(2, captured.Statuses!.Count);
+        Assert.Contains(AuditStatus.Delivered, captured.Statuses);
+        Assert.Contains(AuditStatus.Failed, captured.Statuses);
+    }
+
     [Fact]
     public void TimeRange_LastHour_PopulatesFromUtc_ApproxOneHourAgo()
     {

tests/ScadaLink.CentralUI.Tests/Pages/AuditLogPageExportUrlTests.cs

@@ -74,4 +74,22 @@ public class AuditLogPageExportUrlTests
         Assert.Single(query);
         Assert.Equal("Notification", query["channel"]);
     }
+
+    [Fact]
+    public void BuildExportUrl_MultiValueDimensions_EmitRepeatedParams()
+    {
+        // Task 9: each multi-value dimension emits one repeated query-string key
+        // per selected value so the export endpoint's ParseFilter sees them all.
+        var filter = new AuditLogQueryFilter(
+            Channels: new[] { AuditChannel.ApiOutbound, AuditChannel.DbOutbound },
+            Statuses: new[] { AuditStatus.Failed, AuditStatus.Parked },
+            SourceSiteIds: new[] { "plant-a", "plant-b" });
+
+        var url = AuditLogPage.BuildExportUrl(filter);
+
+        var query = QueryHelpers.ParseQuery(new Uri("http://x" + url).Query);
+        Assert.Equal(new[] { "ApiOutbound", "DbOutbound" }, query["channel"].ToArray());
+        Assert.Equal(new[] { "Failed", "Parked" }, query["status"].ToArray());
+        Assert.Equal(new[] { "plant-a", "plant-b" }, query["site"].ToArray());
+    }
 }