chore: import upstream snapshot with attribution

dotnet/test/VectorData/Weaviate.UnitTests/WeaviateVectorStoreTests.cs

@@ -0,0 +1,80 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Microsoft.SemanticKernel.Connectors.Weaviate;
+using Xunit;
+
+namespace SemanticKernel.Connectors.Weaviate.UnitTests;
+
+/// <summary>
+/// Unit tests for <see cref="WeaviateVectorStore"/> class.
+/// </summary>
+public sealed class WeaviateVectorStoreTests : IDisposable
+{
+    private readonly HttpMessageHandlerStub _messageHandlerStub = new();
+    private readonly HttpClient _mockHttpClient;
+
+    public WeaviateVectorStoreTests()
+    {
+        this._mockHttpClient = new(this._messageHandlerStub, false) { BaseAddress = new Uri("http://test") };
+    }
+
+    [Fact]
+    public void GetCollectionWithNotSupportedKeyThrowsException()
+    {
+        // Arrange
+        using var sut = new WeaviateVectorStore(this._mockHttpClient);
+
+        // Act & Assert
+        Assert.Throws<NotSupportedException>(() => sut.GetCollection<string, WeaviateHotel>("Collection"));
+    }
+
+    [Fact]
+    public void GetCollectionWithSupportedKeyReturnsCollection()
+    {
+        // Arrange
+        using var sut = new WeaviateVectorStore(this._mockHttpClient);
+
+        // Act
+        var collection = sut.GetCollection<Guid, WeaviateHotel>("Collection1");
+
+        // Assert
+        Assert.NotNull(collection);
+    }
+
+    [Fact]
+    public async Task ListCollectionNamesReturnsCollectionNamesAsync()
+    {
+        // Arrange
+        var expectedCollectionNames = new List<string> { "Collection1", "Collection2", "Collection3" };
+        var response = new WeaviateGetCollectionsResponse
+        {
+            Collections = expectedCollectionNames.Select(name => new WeaviateCollectionSchema(name)).ToList()
+        };
+
+        this._messageHandlerStub.ResponseToReturn = new HttpResponseMessage(HttpStatusCode.OK)
+        {
+            Content = new StringContent(JsonSerializer.Serialize(response))
+        };
+
+        using var sut = new WeaviateVectorStore(this._mockHttpClient);
+
+        // Act
+        var actualCollectionNames = await sut.ListCollectionNamesAsync().ToListAsync();
+
+        // Assert
+        Assert.Equal(expectedCollectionNames, actualCollectionNames);
+    }
+
+    public void Dispose()
+    {
+        this._mockHttpClient.Dispose();
+        this._messageHandlerStub.Dispose();
+    }
+}