close #314 - fix flaky integration test (#315)

Author: Aaronontheweb

src/NBench.Tests.End2End/NBenchIntegrationTest.WithDependencies.cs

@@ -65,6 +65,9 @@ private static TestPackage LoadPackageWithDependencies(IEnumerable<string> inclu
                     package.AddExclude(e);
                 }
 
+            // need to set this to true in order to resolve https://github.com/petabridge/NBench/issues/314
+            package.Concurrent = true;
+
             return package;
         }
     }

src/NBench/Sdk/Benchmark.cs

@@ -43,7 +43,7 @@ public class Benchmark
         /// <param name="invoker">The invoker used to execute benchmark and setup / cleanup methods.</param>
         /// <param name="writer">The output target this benchmark will write to.</param>
         /// <remarks>Uses the <see cref="DefaultBenchmarkAssertionRunner"/> to assert benchmark data.</remarks>
-        public Benchmark(BenchmarkSettings settings, IBenchmarkInvoker invoker, IBenchmarkOutput writer) 
+        public Benchmark(BenchmarkSettings settings, IBenchmarkInvoker invoker, IBenchmarkOutput writer)
             : this(settings, invoker, writer, DefaultBenchmarkAssertionRunner.Instance) { }
 
         /// <summary>
@@ -97,7 +97,7 @@ private void WarmUp()
             var runTime = 0L;
 
             /* Pre-Warmup */
-           
+
 
             Trace.Debug("----- BEGIN PRE-WARMUP -----");
             /* Estimate */
@@ -128,16 +128,16 @@ private void WarmUp()
                         {
                             runEstimates[i - 1] = runCount;
                             timeEstimates[i - 1] = warmupStopWatch.ElapsedTicks;
-                            
+
                         }
 
                         runCount = 0;
                         warmupStopWatch.Reset();
                     }
 
                     runCount = (long)Math.Ceiling(runEstimates.Average());
-                    runTime = (long) Math.Ceiling(timeEstimates.Average());
-                       
+                    runTime = (long)Math.Ceiling(timeEstimates.Average());
+
                     Trace.Debug(
                         $"Throughput mode: executed {runCount} instances of {BenchmarkName} in roughly {targetTime.TotalSeconds}s. Using that figure for benchmark.");
                 }
@@ -225,7 +225,7 @@ public void Run()
             {
                 Output.Warning($"Error during previous run of {BenchmarkName}. Aborting run...");
             }
-            
+
         }
 
         public void Shutdown()
@@ -262,12 +262,12 @@ protected void PreRun()
                     // the invoker with an inlined loop
                     Invoker.InvokePerfSetup(WarmupData.EstimatedRunsPerSecond, _currentRun.Context);
                 }
-                    else
+                else
                 {
                     // Invoke user-defined setup method, if any
                     Invoker.InvokePerfSetup(_currentRun.Context);
                 }
-                
+
 
                 PrepareForRun();
             }
@@ -344,7 +344,7 @@ private void Complete(bool isEstimate = false)
             _currentRun.Dispose();
             Trace.Info($"Generating report for {PrintWarmupOrRun(_isWarmup)} {1 + Settings.NumberOfIterations - _pendingIterations} of {BenchmarkName}");
             var report = _currentRun.ToReport(StopWatch.Elapsed);
-            if(!isEstimate)
+            if (!isEstimate)
                 Output.WriteRun(report, _isWarmup);
 
             // Change runs, but not on warmup