To test or run the floppy you will need to apply the proper logic levels to the pins on the ribbon cable. The following list shows what all of the signals are on the floppy interface connector and what they do.

Pins 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33, are all grounds.
Pin 2 - High Density Select
Pin 8 - Index Pulse (produced by the spindle motor for timing)
Pin 10 - A: Motor on
Pin 12 - Drive Select B:
Pin 14 - Drive Select A:
Pin 16 - B: Motor on
Pin 18 - Direction of the head stepper motor (A low here moves in one direction, high moves the other direction)
Pin 20 - Step Pulse (Each pulse here cause the head stepper to make a step)
Pin 22 - Write Data
Pin 24 - Write Enable (A low turns on the write circuit)
Pin 26 - Track 0 ( A low puts the head stepper over track zero)
Pin 28 - Write Protect
Pin 30 - Read Data
Pin 32 - Select head (A Low selects head zero)
Pin 34 - Disk Change Switch
 

Use Pins 12, 16 and ground to control the spindle motor. (Turns the diskette) Put one end of a jumper wire into pin 12 and the other end into any ground pin. Put one contact of the switch into pin 16 and the other contact into a ground pin. (can place a switch here) Connect the power cable and battery to the drive. Connect the other end of the ribbon cable to the floppy drive. (Cable pin 1 to floppy pin 1) Locate the write protect switches and tape them down.  You should see the spindle motor turn on when you flip the switch. Use pins 18, 20 to move stepper motor back and forth.