function verifyControllerSetup (component) {
      sinon.assert.calledOnce(injectTrackedControlsSpy);
      sinon.assert.calledOnce(addEventListenersSpy);
      sinon.assert.notCalled(removeEventListenersSpy);
      assert.strictEqual(component.controllerPresent, true);
    }
Verifies that the method spy's are in the right state for a controller
that has been injected.

@param {object} component - The oculus-go-controls component to verify fields.