Files
mxaccessgw/src/ZB.MOM.WW.MxGateway.Tests/TestSupport/FakeWorkerProcess.cs
T

80 lines
3.0 KiB
C#

using ZB.MOM.WW.MxGateway.Server.Workers;
namespace ZB.MOM.WW.MxGateway.Tests.TestSupport;
/// <summary>
/// Lightweight in-process stand-in for <see cref="IWorkerProcess"/> used by fake worker
/// launchers and lifecycle tests.
/// </summary>
/// <remarks>
/// <para>
/// <see cref="WaitForExitAsync"/> awaits a <see cref="TaskCompletionSource"/> that is
/// completed only by <see cref="Kill"/> or <see cref="MarkExited"/>, so a caller observing
/// completion can trust that exit actually happened rather than passing spuriously.
/// </para>
/// <para>
/// The disposal and kill bookkeeping is exposed under several aliases
/// (<see cref="IsDisposed"/>/<see cref="DisposeCalled"/>/<see cref="Disposed"/>;
/// <see cref="KillCount"/>/<see cref="KillCalled"/>) so the various lifecycle tests can
/// keep their existing assertion vocabulary while sharing one definition.
/// </para>
/// </remarks>
public sealed class FakeWorkerProcess(int processId) : IWorkerProcess
{
private readonly TaskCompletionSource _exited = new(TaskCreationOptions.RunContinuationsAsynchronously);
/// <summary>Gets the process identifier.</summary>
public int Id { get; } = processId;
/// <summary>Gets or sets a value indicating whether the process has exited.</summary>
public bool HasExited { get; set; }
/// <summary>Gets or sets the exit code of the process, or <see langword="null"/> if it has not exited.</summary>
public int? ExitCode { get; set; }
/// <summary>Gets the number of times <see cref="Kill"/> was called.</summary>
public int KillCount { get; private set; }
/// <summary>Gets a value indicating whether <see cref="Kill"/> was called at least once.</summary>
public bool KillCalled => KillCount > 0;
/// <summary>Gets the <c>entireProcessTree</c> flag from the most recent <see cref="Kill"/> call.</summary>
public bool KillEntireProcessTree { get; private set; }
/// <summary>Gets a value indicating whether <see cref="Dispose"/> was called.</summary>
public bool IsDisposed { get; private set; }
/// <summary>Gets a value indicating whether <see cref="Dispose"/> was called.</summary>
public bool DisposeCalled => IsDisposed;
/// <summary>Gets a value indicating whether <see cref="Dispose"/> was called.</summary>
public bool Disposed => IsDisposed;
/// <inheritdoc />
public ValueTask WaitForExitAsync(CancellationToken cancellationToken) =>
new(_exited.Task.WaitAsync(cancellationToken));
/// <inheritdoc />
public void Kill(bool entireProcessTree)
{
KillCount++;
KillEntireProcessTree = entireProcessTree;
MarkExited(-1);
}
/// <inheritdoc />
public void Dispose() => IsDisposed = true;
/// <summary>
/// Marks the process as exited with the specified exit code and unblocks
/// any callers of <see cref="WaitForExitAsync"/>.
/// </summary>
/// <param name="exitCode">The process exit code.</param>
public void MarkExited(int exitCode)
{
HasExited = true;
ExitCode = exitCode;
_exited.TrySetResult();
}
}