recipetool: selftest: Add test for recipetool plugin loading

Test that recipetool plugins are loaded in a well defined order.

(From OE-Core rev: 044de8424a454a7057906e44eb56e2134ebb17e4)

Signed-off-by: Ola x Nilsson <ola.x.nilsson@axis.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta-selftest/lib/recipetool/bbpath.py

@@ -0,0 +1,41 @@
+import argparse
+
+already_loaded = False
+register_count = 0
+
+def plugin_name(filename):
+    return os.path.splitext(os.path.basename(filename))[0]
+
+def plugin_init(plugins):
+    global already_loaded
+    already_loaded = plugin_name(__file__) in (plugin_name(p.__name__) for p in plugins)
+
+def print_name(opts):
+    print (__file__)
+
+def print_bbdir(opts):
+    print (__file__.replace('/lib/recipetool/bbpath.py',''))
+
+def print_registered(opts):
+    #global kept_context
+    #print(kept_context.loaded)
+    print ("1")
+
+def multiloaded(opts):
+    global already_loaded
+    print("yes" if already_loaded else "no")
+
+def register_commands(subparsers):
+    global register_count
+    register_count += 1
+
+    def addparser(name, helptxt, func):
+        parser = subparsers.add_parser(name, help=helptxt,
+                                       formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+        parser.set_defaults(func=func)
+        return parser
+
+    addparser('pluginfile', 'Print the filename of this plugin', print_name)
+    addparser('bbdir', 'Print the BBPATH directory of this plugin', print_bbdir)
+    addparser('count', 'How many times have this plugin been registered.', print_registered)
+    addparser('multiloaded', 'How many times have this plugin been initialized', multiloaded)