chore: import upstream snapshot with attribution

dotnet/test/VectorData/Qdrant.UnitTests/QdrantVectorStoreTests.cs

@@ -0,0 +1,83 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.VectorData;
+using Moq;
+using Xunit;
+
+namespace Microsoft.SemanticKernel.Connectors.Qdrant.UnitTests;
+
+/// <summary>
+/// Contains tests for the <see cref="QdrantVectorStore"/> class.
+/// </summary>
+public class QdrantVectorStoreTests
+{
+    private const string TestCollectionName = "testcollection";
+
+    private readonly Mock<MockableQdrantClient> _qdrantClientMock;
+
+    private readonly CancellationToken _testCancellationToken = new(false);
+
+    public QdrantVectorStoreTests()
+    {
+        this._qdrantClientMock = new Mock<MockableQdrantClient>(MockBehavior.Strict);
+    }
+
+    [Fact]
+    public void GetCollectionReturnsCollection()
+    {
+        // Arrange.
+        using var sut = new QdrantVectorStore(this._qdrantClientMock.Object);
+
+        // Act.
+        var actual = sut.GetCollection<ulong, SinglePropsModel<ulong>>(TestCollectionName);
+
+        // Assert.
+        Assert.NotNull(actual);
+        Assert.IsType<QdrantCollection<ulong, SinglePropsModel<ulong>>>(actual);
+    }
+
+    [Fact]
+    public void GetCollectionThrowsForInvalidKeyType()
+    {
+        // Arrange.
+        using var sut = new QdrantVectorStore(this._qdrantClientMock.Object);
+
+        // Act & Assert.
+        Assert.Throws<NotSupportedException>(() => sut.GetCollection<string, SinglePropsModel<string>>(TestCollectionName));
+    }
+
+    [Fact]
+    public async Task ListCollectionNamesCallsSDKAsync()
+    {
+        // Arrange.
+        this._qdrantClientMock
+            .Setup(x => x.ListCollectionsAsync(It.IsAny<CancellationToken>()))
+            .ReturnsAsync(new[] { "collection1", "collection2" });
+        using var sut = new QdrantVectorStore(this._qdrantClientMock.Object);
+
+        // Act.
+        var collectionNames = sut.ListCollectionNamesAsync(this._testCancellationToken);
+
+        // Assert.
+        var collectionNamesList = await collectionNames.ToListAsync();
+        Assert.Equal(new[] { "collection1", "collection2" }, collectionNamesList);
+    }
+
+    public sealed class SinglePropsModel<TKey>
+    {
+        [VectorStoreKey]
+        public required TKey Key { get; set; }
+
+        [VectorStoreData]
+        public string Data { get; set; } = string.Empty;
+
+        [VectorStoreVector(4)]
+        public ReadOnlyMemory<float>? Vector { get; set; }
+
+        public string? NotAnnotated { get; set; }
+    }
+}