Bug 1697 - Restructed function control flow to aviod branching across initialization.
## this tests that a client can fallback to a secondary auth mech
CLIENT
## Will try EXTERNAL by default first without first calling AUTH alone.
EXPECT_COMMAND AUTH
SEND 'REJECTED EXTERNAL DBUS_COOKIE_SHA1 DBUS_TEST_NONEXISTENT_MECH'
## And this time we get DBUS_COOKIE_SHA1
EXPECT_COMMAND AUTH
## of course real DBUS_COOKIE_SHA1 would not send this here...
SEND 'OK 1234deadbeef'
EXPECT_COMMAND BEGIN
EXPECT_STATE AUTHENTICATED