Publish curated Knowledge Hub source from 2ed833f290b439a7bc91e5fd19b042c269e3bee9

tests/backend/ItWorx.KnowledgeHub.Domain.Tests/Sources/DataSourceTests.cs

@@ -0,0 +1,50 @@
+using ItWorx.KnowledgeHub.Domain.Sources;
+
+namespace ItWorx.KnowledgeHub.Domain.Tests.Sources;
+
+public sealed class DataSourceTests
+{
+    private static readonly DateTimeOffset Now = new(2026, 10, 2, 0, 0, 0, TimeSpan.Zero);
+
+    [Fact]
+    public void A_registered_source_is_unknown_until_it_has_observed_evidence()
+    {
+        var source = DataSource.Create(Guid.NewGuid(), "inventory:test", "Inventory", DataSourceKind.Inventory, 24, Now);
+        Assert.Equal("Unknown", source.GetState(Now));
+        Assert.Null(source.LastSuccessAt);
+        Assert.Null(source.RecordCount);
+    }
+
+    [Fact]
+    public void Newer_failure_outweighs_earlier_success_and_stale_success_is_not_current()
+    {
+        var source = DataSource.Create(Guid.NewGuid(), "inventory:test", "Inventory", DataSourceKind.Inventory, 24, Now);
+        source.Observe(true, 12, null, "run1", Now);
+        Assert.Equal("Current", source.GetState(Now));
+        Assert.Equal("Stale", source.GetState(Now.AddHours(25)));
+        source.Observe(false, null, "connectivity", "run2", Now.AddHours(1));
+        Assert.Equal("Failed", source.GetState(Now.AddHours(1)));
+        Assert.Equal(12, source.RecordCount);
+        Assert.Throws<ArgumentException>(() => source.Observe(true, 99, null, "older", Now.AddMinutes(-1)));
+    }
+
+    [Fact]
+    public void Importing_old_data_does_not_refresh_its_freshness()
+    {
+        var source = DataSource.Create(Guid.NewGuid(), "inventory:test", "Inventory", DataSourceKind.Inventory, 24, Now);
+        source.Observe(true, 12, null, "import", Now, Now.AddDays(-2));
+        Assert.Equal("Stale", source.GetState(Now));
+        Assert.Equal(Now, source.LastSuccessAt);
+    }
+
+    [Fact]
+    public void Disabling_preserves_prior_evidence_and_observations_require_safe_error_codes()
+    {
+        var source = DataSource.Create(Guid.NewGuid(), "inventory:test", "Inventory", DataSourceKind.Inventory, 24, Now);
+        source.Observe(true, 12, null, "run1", Now);
+        source.Configure("Inventory", false, 24);
+        Assert.Equal("Disabled", source.GetState(Now));
+        Assert.Equal(Now, source.LastSuccessAt);
+        Assert.Throws<ArgumentException>(() => source.Observe(false, null, "secret connection string", "run2", Now));
+    }
+}