fix: retry workflow works with async/awat

src/Elders.Cronus/FaultHandling/InMemoryRetryWorkflow.cs

@@ -23,10 +23,7 @@ protected override async Task RunAsync(Execution<TContext> execution)
  if (execution is null) throw new ArgumentNullException(nameof(execution));
 
  TContext context = execution.Context;
- await retryPolicy.ExecuteAction(() =>
- {
- return workflow.RunAsync(execution.Context).ConfigureAwait(false);
- });
+ await retryPolicy.ExecuteAction(() => workflow.RunAsync(execution.Context));
  }
  }
 }

src/Elders.Cronus/FaultHandling/RetryPolicy.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Threading;
+using System.Threading.Tasks;
 using Elders.Cronus.FaultHandling.Strategies;
 using Microsoft.Extensions.Logging;
 
@@ -115,24 +116,13 @@ public RetryPolicy(ITransientErrorDetectionStrategy errorDetectionStrategy, int
  /// </summary>
  public ITransientErrorDetectionStrategy ErrorDetectionStrategy { get; private set; }
 
- /// <summary>
- /// Repetitively executes the specified action while it satisfies the current retry policy.
- /// </summary>
- /// <param name="action">A delegate representing the executable action which doesn't return any results.</param>
- public virtual void ExecuteAction(Action action)
- {
- //Guard.ArgumentNotNull(action, "action");
-
- this.ExecuteAction(() => { action(); return default(object); });
- }
-
  /// <summary>
  /// Repetitively executes the specified action while it satisfies the current retry policy.
  /// </summary>
  /// <typeparam name="TResult">The type of result expected from the executable action.</typeparam>
  /// <param name="func">A delegate representing the executable action which returns the result of type R.</param>
  /// <returns>The result from the action.</returns>
- public virtual TResult ExecuteAction<TResult>(Func<TResult> func)
+ public virtual async Task<TResult> ExecuteAction<TResult>(Func<Task<TResult>> func)
  {
  //Guard.ArgumentNotNull(func, "func");
 
@@ -148,7 +138,8 @@ public virtual TResult ExecuteAction<TResult>(Func<TResult> func)
 
  try
  {
- return func();
+ var result = await func();
+ return result;
  }
  catch (RetryLimitExceededException limitExceededEx)
  {

src/Elders.Cronus/Workflow/Workflow.cs

@@ -10,11 +10,6 @@ protected override async Task<object> AbstractRunAsync(Execution<TContext> execu
  return default(object);
  }
 
- new public Task RunAsync(TContext context)
- {
- return base.RunAsync(context);
- }
-
  protected abstract Task RunAsync(Execution<TContext> execution);
  }