Atom Tools: Bind exit function for python tests

Signed-off-by: Guthrie Adams <guthadam@amazon.com>

Gems/Atom/Tools/AtomToolsFramework/Code/Include/AtomToolsFramework/Application/AtomToolsApplication.h

@@ -111,6 +111,7 @@ namespace AtomToolsFramework
         virtual void ProcessCommandLine(const AZ::CommandLine& commandLine);
 
         static void PyIdleWaitFrames(uint32_t frames);
+        static void PyExit();
 
         AzToolsFramework::TraceLogger m_traceLogger;
 

Gems/Atom/Tools/AtomToolsFramework/Code/Source/Application/AtomToolsApplication.cpp

@@ -130,10 +130,13 @@ namespace AtomToolsFramework
                     ->Attribute(AZ::Script::Attributes::Category, "Editor")
                     ->Attribute(AZ::Script::Attributes::Module, "atomtools.general");
             };
-            // The reflection here is based on patterns in CryEditPythonHandler::Reflect
+
             addGeneral(behaviorContext->Method(
                 "idle_wait_frames", &AtomToolsApplication::PyIdleWaitFrames, nullptr,
                 "Waits idling for a frames. Primarily used for auto-testing."));
+            addGeneral(behaviorContext->Method(
+                "exit", &AtomToolsApplication::PyExit, nullptr,
+                "Exit application. Primarily used for auto-testing."));
         }
     }
 
@@ -564,4 +567,9 @@ namespace AtomToolsFramework
         Ticker ticker(&loop, frames);
         loop.exec();
     }
+
+    void AtomToolsApplication::PyExit()
+    {
+        AzFramework::ApplicationRequests::Bus::Broadcast(&AzFramework::ApplicationRequests::ExitMainLoop);
+    }
 } // namespace AtomToolsFramework