Address PR comments

Code/Tools/TestImpactFramework/Runtime/Code/Source/Process/JobRunner/TestImpactProcessJobRunner.h

@@ -51,7 +51,7 @@ namespace TestImpact
     public:
         //! Constructs the job runner with the specified parameters to constrain job runs.
         //! @param maxConcurrentProcesses he maximum number of concurrent jobs in-flight.
-        JobRunner(size_t maxConcurrentProcesses);
+        explicit JobRunner(size_t maxConcurrentProcesses);
            
         //! Executes the specified jobs and returns the products of their labor.
         //! @param jobs The arguments (and other pertinent information) required for each job to be run.

Code/Tools/TestImpactFramework/Runtime/Code/Source/Process/Scheduler/TestImpactProcessScheduler.cpp

@@ -95,8 +95,9 @@ namespace TestImpact
         {
             if (PopAndLaunch(process) == ProcessCallbackResult::Abort)
             {
+                // Client chose to abort the scheduler
                 TerminateAllProcesses(ExitCondition::Terminated);
-                return ProcessSchedulerResult::Graceful;
+                return ProcessSchedulerResult::UserAborted;
             }
         }
 
@@ -144,7 +145,7 @@ namespace TestImpact
                         {
                             // Client chose to abort the scheduler
                             TerminateAllProcesses(ExitCondition::Terminated);
-                            return ProcessSchedulerResult::Graceful;
+                            return ProcessSchedulerResult::UserAborted;
                         }
                         else if (!m_processQueue.empty())
                         {
@@ -153,7 +154,7 @@ namespace TestImpact
                             {
                                 // Client chose to abort the scheduler
                                 TerminateAllProcesses(ExitCondition::Terminated);
-                                return ProcessSchedulerResult::Graceful;
+                                return ProcessSchedulerResult::UserAborted;
                             }
                             else
                             {
@@ -184,7 +185,7 @@ namespace TestImpact
                             {
                                 // Client chose to abort the scheduler
                                 TerminateAllProcesses(ExitCondition::Terminated);
-                                return ProcessSchedulerResult::Graceful;
+                                return ProcessSchedulerResult::UserAborted;
                             }
                         }
 
@@ -201,7 +202,7 @@ namespace TestImpact
                         {
                             // Client chose to abort the scheduler
                             TerminateAllProcesses(ExitCondition::Terminated);
-                            return ProcessSchedulerResult::Graceful;
+                            return ProcessSchedulerResult::UserAborted;
                         }
                         else
                         {

Code/Tools/TestImpactFramework/Runtime/Code/Source/Process/Scheduler/TestImpactProcessScheduler.h

@@ -51,9 +51,10 @@ namespace TestImpact
     };
 
     //! Result of the process scheduling sequence.
-    enum class ProcessSchedulerResult : bool
+    enum class ProcessSchedulerResult : AZ::u8
     {
         Graceful, //!< The scheduler completed its run without incident or was terminated gracefully in response to a client callback result.
+        UserAborted, //!< The scheduler aborted prematurely due to the user returning an abort value from thier callback handler.
         Timeout //!< The scheduler aborted its run prematurely due to its runtime exceeding the scheduler timeout value.
     };
 
@@ -88,7 +89,7 @@ namespace TestImpact
     public:
         //! Constructs the scheduler with the specified batch of processes.
         //! @param maxConcurrentProcesses The maximum number of concurrent processes in-flight.
-        ProcessScheduler(size_t maxConcurrentProcesses);
+        explicit ProcessScheduler(size_t maxConcurrentProcesses);
         ~ProcessScheduler();
 
         //! Executes the specified processes and calls the client callbacks (if any) as each process progresses in its life cycle.