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test(drivers): extract shared stub-driver harness (de-dup)

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This commit is contained in:
Joseph Doherty
2026-06-14 22:49:26 -04:00
parent d8129e5ab7
commit c03361de1b
3 changed files with 158 additions and 229 deletions
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tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorWriteAndSubscribeTests.cs
-91
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@@ -173,42 +173,6 @@ public sealed class DriverInstanceActorWriteAndSubscribeTests : RuntimeActorTest
deadLetterProbe.ExpectNoMsg(TimeSpan.FromMilliseconds(500));
}
// --- stub drivers (mirrors DriverInstanceActorTests) ------------------------------------------
private class StubDriver : IDriver
{
/// <summary>Gets or sets a value indicating whether initialization should throw.</summary>
public bool InitializeShouldThrow { get; set; }
/// <summary>Gets the number of times initialization was called.</summary>
public int InitializeCount;
/// <summary>Gets the driver instance ID.</summary>
public string DriverInstanceId => "stub-driver-1";
/// <summary>Gets the driver type.</summary>
public string DriverType => "Stub";
/// <summary>Initializes the driver with the specified configuration JSON.</summary>
public Task InitializeAsync(string driverConfigJson, CancellationToken cancellationToken)
{
Interlocked.Increment(ref InitializeCount);
if (InitializeShouldThrow) throw new InvalidOperationException("stub-init-fail");
return Task.CompletedTask;
}
/// <summary>Reinitializes the driver with the specified configuration JSON.</summary>
public Task ReinitializeAsync(string driverConfigJson, CancellationToken cancellationToken) =>
Task.CompletedTask;
/// <summary>Shuts down the driver.</summary>
public Task ShutdownAsync(CancellationToken cancellationToken) => Task.CompletedTask;
/// <summary>Gets the health status of the driver.</summary>
public DriverHealth GetHealth() => new(DriverState.Healthy, DateTime.UtcNow, null);
/// <summary>Gets the memory footprint of the driver.</summary>
public long GetMemoryFootprint() => 0;
/// <summary>Flushes optional caches in the driver.</summary>
public Task FlushOptionalCachesAsync(CancellationToken cancellationToken) => Task.CompletedTask;
}
/// <summary>
/// A standalone <see cref="IDriver"/> (and <see cref="IWritable"/>) whose <c>InitializeAsync</c>
/// never completes, parking the actor in <c>Connecting</c>. Implements the interface directly
@@ -255,59 +219,4 @@ public sealed class DriverInstanceActorWriteAndSubscribeTests : RuntimeActorTest
}
}
private sealed class WritableStubDriver : StubDriver, IWritable
{
/// <summary>Gets or sets the next status code to return from write operations.</summary>
public uint NextStatusCode { get; set; } = 0u;
/// <summary>Gets the list of write requests received.</summary>
public List<WriteRequest> Writes { get; } = new();
/// <summary>Writes the specified requests.</summary>
public Task<IReadOnlyList<WriteResult>> WriteAsync(
IReadOnlyList<WriteRequest> writes, CancellationToken cancellationToken)
{
Writes.AddRange(writes);
IReadOnlyList<WriteResult> results = writes.Select(_ => new WriteResult(NextStatusCode)).ToList();
return Task.FromResult(results);
}
}
private sealed class SubscribableStubDriver : StubDriver, ISubscribable
{
/// <summary>Occurs when data changes.</summary>
public event EventHandler<DataChangeEventArgs>? OnDataChange;
private readonly StubHandle _handle = new();
/// <summary>Gets the number of subscribers to OnDataChange.</summary>
public int OnDataChangeSubscriberCount => OnDataChange?.GetInvocationList().Length ?? 0;
/// <summary>Number of times <see cref="SubscribeAsync"/> was called.</summary>
public int SubscribeCount;
/// <summary>Subscribes to the specified full references.</summary>
public Task<ISubscriptionHandle> SubscribeAsync(
IReadOnlyList<string> fullReferences, TimeSpan publishingInterval, CancellationToken cancellationToken)
{
Interlocked.Increment(ref SubscribeCount);
return Task.FromResult<ISubscriptionHandle>(_handle);
}
/// <summary>Unsubscribes from the specified subscription handle.</summary>
public Task UnsubscribeAsync(ISubscriptionHandle handle, CancellationToken cancellationToken) =>
Task.CompletedTask;
/// <summary>Fires a data change event with the specified parameters.</summary>
public void FireDataChange(string fullRef, object? value, uint statusCode)
{
var snapshot = new DataValueSnapshot(value, statusCode, DateTime.UtcNow, DateTime.UtcNow);
OnDataChange?.Invoke(this, new DataChangeEventArgs(_handle, fullRef, snapshot));
}
private sealed class StubHandle : ISubscriptionHandle
{
/// <summary>Gets the diagnostic ID of the subscription.</summary>
public string DiagnosticId => "stub-sub";
}
}
}