Initial commit

src/mcpdotnet.Tests/IntegrationTests.cs

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+using McpDotNet.Client;
+using McpDotNet.Configuration;
+using McpDotNet.Protocol.Messages;
+using McpDotNet.Protocol.Transport;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Channels;
+using System.Threading.Tasks;
+
+namespace McpDotNet.Tests;
+
+public class IntegrationTests
+{
+    private readonly McpClientOptions _defaultOptions = new()
+    {
+        ClientInfo = new() { Name = "IntegrationTestClient", Version = "1.0.0" }
+    };
+
+    [Fact]
+    public async Task ConnectAndPing_Stdio_EverythingServer()
+    {
+        // Arrange
+        var config = new McpServerConfig
+        {
+            Id = "everything",
+            Name = "Everything",
+            TransportType = "stdio",
+            TransportOptions = new Dictionary<string, string>
+            {
+                ["command"] = "npx",
+                ["arguments"] = "-y @modelcontextprotocol/server-everything",
+            }
+        };
+
+        // Inject the mock transport into the factory
+        var factory = new McpClientFactory(
+            new[] { config },
+            _defaultOptions
+        );
+
+        // Act
+        var client = await factory.GetClientAsync("everything");
+        await client.PingAsync(CancellationToken.None);
+
+        // Assert
+        Assert.NotNull(client);
+    }
+
+    [Fact]
+    public async Task ListTools_Stdio_EverythingServer()
+    {
+        // arrange
+        var config = new McpServerConfig
+        {
+            Id = "everything",
+            Name = "Everything",
+            TransportType = "stdio",
+            TransportOptions = new Dictionary<string, string>
+            {
+                ["command"] = "npx",
+                ["arguments"] = "-y @modelcontextprotocol/server-everything"
+            }
+        };
+
+        var factory = new McpClientFactory(
+            new[] { config },
+            _defaultOptions
+        );
+
+        // act
+        var client = await factory.GetClientAsync("everything");
+        var tools = await client.ListToolsAsync(CancellationToken.None);
+
+        // assert
+        Assert.NotNull(tools);
+        Assert.NotEmpty(tools.Tools);
+        // We could add more specific assertions about expected tools
+    }
+
+    [Fact]
+    public async Task CallTool_Stdio_EchoServer()
+    {
+        // arrange
+        var config = new McpServerConfig
+        {
+            Id = "everything",
+            Name = "Everything",
+            TransportType = "stdio",
+            TransportOptions = new Dictionary<string, string>
+            {
+                ["command"] = "npx",
+                ["arguments"] = "-y @modelcontextprotocol/server-everything"
+            }
+        };
+
+        var factory = new McpClientFactory(
+            new[] { config },
+            _defaultOptions
+        );
+
+        // act
+        var client = await factory.GetClientAsync("everything");
+        var result = await client.CallToolAsync(
+            "echo",
+            new Dictionary<string, object>
+            {
+                ["message"] = "Hello MCP!"
+            },
+            CancellationToken.None
+        );
+
+        // assert
+        Assert.NotNull(result);
+        Assert.False(result.IsError);
+        var textContent = Assert.Single(result.Content.Where(c => c.Type == "text"));
+        Assert.Equal("Echo: Hello MCP!", textContent.Text);
+    }
+}