Files
scadalink-design/tests/ScadaLink.ClusterInfrastructure.Tests/ServiceCollectionExtensionsTests.cs

59 lines
2.1 KiB
C#

using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
namespace ScadaLink.ClusterInfrastructure.Tests;
/// <summary>
/// CI-002: Tests that the DI extension methods do real work rather than
/// silently returning success. <see cref="ServiceCollectionExtensions.AddClusterInfrastructure"/>
/// must register the <see cref="ClusterOptionsValidator"/> so misconfiguration
/// fails fast, and the unimplemented actor-registration placeholder must fail
/// loudly rather than masquerade as a completed registration.
/// </summary>
public class ServiceCollectionExtensionsTests
{
[Fact]
public void AddClusterInfrastructure_RegistersOptionsValidator()
{
var services = new ServiceCollection();
services.AddClusterInfrastructure();
var validators = services
.Where(d => d.ServiceType == typeof(IValidateOptions<ClusterOptions>))
.ToList();
Assert.NotEmpty(validators);
using var provider = services.BuildServiceProvider();
var validator = provider.GetService<IValidateOptions<ClusterOptions>>();
Assert.IsType<ClusterOptionsValidator>(validator);
}
[Fact]
public void AddClusterInfrastructure_ValidatorRejectsBadOptionsAtResolution()
{
var services = new ServiceCollection();
services.AddClusterInfrastructure();
// A MinNrOfMembers of 2 blocks the cluster singleton after failover.
services.Configure<ClusterOptions>(o =>
{
o.SeedNodes = new List<string> { "akka.tcp://scadalink@node1:8081" };
o.MinNrOfMembers = 2;
});
using var provider = services.BuildServiceProvider();
var ex = Assert.Throws<OptionsValidationException>(
() => provider.GetRequiredService<IOptions<ClusterOptions>>().Value);
Assert.Contains("MinNrOfMembers", ex.Message);
}
[Fact]
public void AddClusterInfrastructureActors_ThrowsRatherThanSilentlySucceeding()
{
var services = new ServiceCollection();
Assert.Throws<NotImplementedException>(() => services.AddClusterInfrastructureActors());
}
}