using OpenHarbor.MCP.Client.Core.Exceptions;
using Xunit;

namespace OpenHarbor.MCP.Client.Core.Tests.Exceptions;

/// <summary>
/// Unit tests for MCP exception types.
/// Tests exception creation, messages, and properties.
/// </summary>
public class McpConnectionExceptionTests
{
    [Fact]
    public void McpConnectionException_WithMessage_CreatesException()
    {
        // Arrange & Act
        var exception = new McpConnectionException("Test error");

        // Assert
        Assert.Equal("Test error", exception.Message);
        Assert.Null(exception.InnerException);
    }

    [Fact]
    public void McpConnectionException_WithInnerException_CreatesException()
    {
        // Arrange
        var innerException = new InvalidOperationException("Inner error");

        // Act
        var exception = new McpConnectionException("Test error", innerException);

        // Assert
        Assert.Equal("Test error", exception.Message);
        Assert.Same(innerException, exception.InnerException);
    }

    [Fact]
    public void ServerNotFoundException_WithServerName_SetsProperties()
    {
        // Arrange & Act
        var exception = new ServerNotFoundException("test-server");

        // Assert
        Assert.Equal("test-server", exception.ServerName);
        Assert.Contains("test-server", exception.Message);
        Assert.Contains("not found or not connected", exception.Message);
    }

    [Fact]
    public void ToolNotFoundException_WithServerAndToolName_SetsProperties()
    {
        // Arrange & Act
        var exception = new ToolNotFoundException("test-server", "test_tool");

        // Assert
        Assert.Equal("test-server", exception.ServerName);
        Assert.Equal("test_tool", exception.ToolName);
        Assert.Contains("test_tool", exception.Message);
        Assert.Contains("test-server", exception.Message);
        Assert.Contains("not found on server", exception.Message);
    }
}