chore: import upstream snapshot with attribution

dotnet/test/VectorData/PgVector.UnitTests/PostgresCollectionTests.cs

@@ -0,0 +1,33 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System;
+using Microsoft.Extensions.VectorData;
+using Microsoft.SemanticKernel.Connectors.PgVector;
+using Xunit;
+
+namespace SemanticKernel.Connectors.PgVector.UnitTests;
+
+public class PostgresCollectionTests
+{
+    private const string TestCollectionName = "testcollection";
+
+    [Fact]
+    public void ThrowsForUnsupportedType()
+    {
+        // Arrange
+        var recordDefinition = new VectorStoreCollectionDefinition
+        {
+            Properties = [
+                new VectorStoreKeyProperty("HotelId", typeof(ulong)),
+                new VectorStoreDataProperty("HotelName", typeof(string)) { IsIndexed = true, IsFullTextIndexed = true },
+            ]
+        };
+        var options = new PostgresCollectionOptions()
+        {
+            Definition = recordDefinition
+        };
+
+        // Act & Assert
+        Assert.Throws<NotSupportedException>(() => new PostgresDynamicCollection("Host=localhost;Database=test;", TestCollectionName, options));
+    }
+}