novelly/tests/Novelly.Api.Tests/AnthropicClientTests.cs

using Microsoft.Extensions.Options;
using Novelly.Api.Agent;
using Novelly.Api.Common;

namespace Novelly.Api.Tests;

[TestFixture]
public class AnthropicClientTests
{
    [Test]
    public void Constructing_without_a_key_does_not_throw() =>
        // The agent service takes this as a dependency and also serves read-only endpoints
        // (listing conversations, reading a transcript). Throwing at construction would
        // take those down on any install that has not configured a key yet.
        Assert.That(
            () => new AnthropicAgentModelClient(Options.Create(new AgentOptions())),
            Throws.Nothing);

    [Test]
    public void Sending_without_a_key_reports_a_configuration_problem()
    {
        var previous = Environment.GetEnvironmentVariable("ANTHROPIC_API_KEY");
        Environment.SetEnvironmentVariable("ANTHROPIC_API_KEY", null);

        try
        {
            var client = new AnthropicAgentModelClient(Options.Create(new AgentOptions()));

            Assert.That(
                async () => await client.CompleteAsync("system", [], []),
                Throws.TypeOf<AgentNotConfiguredException>().With.Message.Contains("ANTHROPIC_API_KEY"));
        }
        finally
        {
            Environment.SetEnvironmentVariable("ANTHROPIC_API_KEY", previous);
        }
    }
}