bitbake: cooker/command: Add a dummy event for tinfoil testing

We need a command genetating an event to test through the tinfoil API. The
current test has IO load issues so add a dummy version which won't have
the IO constraints.

(Bitbake rev: c5969eedd035648e3258bade386cc67ce3bb0e03)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit a144178584394ea0700ffc2f2bfac94e8690effc)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/command.py

@@ -624,6 +624,16 @@ class CommandsAsync:
         command.finishAsyncCommand()
     findFilesMatchingInDir.needcache = False
 
+    def testCookerCommandEvent(self, command, params):
+        """
+        Dummy command used by OEQA selftest to test tinfoil without IO
+        """
+        pattern = params[0]
+
+        command.cooker.testCookerCommandEvent(pattern)
+        command.finishAsyncCommand()
+    testCookerCommandEvent.needcache = False
+
     def findConfigFilePath(self, command, params):
         """
         Find the path of the requested configuration file