Set auth_plugin in __init__

This avoids auth_plugin being undefined when calling self.get_base_parser
without self.main having been called.

Closes-Bug: #1434264
Change-Id: Ic3a898ccecb865ff4e88d82538bcb04001d623db

ceilometerclient/shell.py

@@ -46,6 +46,9 @@ def _positive_non_zero_int(argument_value):
 
 class CeilometerShell(object):
 
+    def __init__(self):
+        self.auth_plugin = ceiloclient.AuthPlugin()
+
     def get_base_parser(self):
         parser = argparse.ArgumentParser(
             prog='ceilometer',
@@ -158,7 +161,6 @@ class CeilometerShell(object):
 
     def parse_args(self, argv):
         # Parse args once to find version
-        self.auth_plugin = ceiloclient.AuthPlugin()
         parser = self.get_base_parser()
         (options, args) = parser.parse_known_args(argv)
         self.auth_plugin.parse_opts(options)

ceilometerclient/tests/test_shell.py

@@ -92,6 +92,11 @@ class ShellHelpTest(ShellTestBase):
                 self.assertThat(help_text,
                                 matchers.MatchesRegex(r, self.RE_OPTIONS))
 
+    def test_get_base_parser(self):
+        standalone_shell = ceilometer_shell.CeilometerShell()
+        parser = standalone_shell.get_base_parser()
+        self.assertEqual(600, parser.get_default('timeout'))
+
 
 class ShellKeystoneV2Test(ShellTestBase):