// Copyright 2012-2025 The NATS Authors
// Licensed under the Apache License, Version 2.0

using Xunit.Abstractions;

namespace ZB.MOM.NatsNet.Server.IntegrationTests.Helpers;

/// <summary>
/// Base class for integration tests that require a running NATS server or cluster.
/// Tests derived from this class are skipped when the infrastructure is not available.
/// These tests correspond to Go's !race build tag tests (TestNoRace* functions).
/// </summary>
[Trait("Category", "Integration")]
public abstract class IntegrationTestBase
{
    protected readonly ITestOutputHelper Output;

    /// <summary>
    /// Set to true when the NATS_INTEGRATION_ENABLED environment variable is set to "true".
    /// When false, all [SkippableFact] tests will be skipped with an appropriate message.
    /// </summary>
    public static readonly bool IntegrationEnabled =
        string.Equals(
            Environment.GetEnvironmentVariable("NATS_INTEGRATION_ENABLED"),
            "true",
            StringComparison.OrdinalIgnoreCase);

    protected IntegrationTestBase(ITestOutputHelper output)
    {
        Output = output;
    }

    /// <summary>
    /// Returns a skip message when integration tests are not enabled.
    /// Use with [SkippableFact]: throw new SkipException(SkipMessage) if !IntegrationEnabled.
    /// </summary>
    public static string SkipMessage =>
        "Integration tests require NATS_INTEGRATION_ENABLED=true and a running NATS server/cluster";
}