how to configure client side TNS entry for data guard

Hello All,

I'm facing problem while configuring client side tns entry for Data Guard env and below I have given tns entry which is not working.

Primary SID: TEST -> tns service name: test

Standby SID: TEST -> tns service name: test

TNS ENTRY:

TEST2=

  (DESCRIPTION=

    (ADDRESS_LIST=

      (ADDRESS=(PROTOCOL=TCP)(HOST=primary)(PORT=1521))

      (ADDRESS=(PROTOCOL=TCP)(HOST=standby)(PORT=1521))

    )

    (CONNECT_DATA=

    (SID = TEST)))

Once I Switchover to standby DB using above TNS entry I'm getting below error 

Error:

ERROR:

ORA-01033: ORACLE initialization or shutdown in progress

Process ID: 0

Session ID: 0 Serial number: 0

Please help me to resolve this issue