chore: import upstream snapshot with attribution

dotnet/test/VectorData/InMemory.ConformanceTests/Support/InMemoryFixture.cs

@@ -0,0 +1,10 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using VectorData.ConformanceTests.Support;
+
+namespace InMemory.ConformanceTests.Support;
+
+public class InMemoryFixture : VectorStoreFixture
+{
+    public override TestStore TestStore => InMemoryTestStore.Instance;
+}

dotnet/test/VectorData/InMemory.ConformanceTests/Support/InMemoryTestStore.cs

@@ -0,0 +1,25 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using Microsoft.SemanticKernel.Connectors.InMemory;
+using VectorData.ConformanceTests.Support;
+
+namespace InMemory.ConformanceTests.Support;
+
+internal sealed class InMemoryTestStore : TestStore
+{
+    public static InMemoryTestStore Instance { get; } = new();
+
+    public InMemoryVectorStore GetVectorStore(InMemoryVectorStoreOptions options)
+        => new(new() { EmbeddingGenerator = options.EmbeddingGenerator });
+
+    private InMemoryTestStore()
+    {
+    }
+
+    protected override Task StartAsync()
+    {
+        this.DefaultVectorStore = new InMemoryVectorStore();
+
+        return Task.CompletedTask;
+    }
+}