In Watership Down
The river plays a significant part in Richard Adams' novel Watership Down.
After Bigwig leads the breakout from Efrafa, the Watership rabbits are pursued by an Efrafan force led by their Chief, General Woundwort. Hazel carries out a plan devised by Blackberry which leads to their successful escape down the Test on a punt. In the text we are told that this plan would not have been possible on most rivers, but the Test's smooth-flowing, weed-free nature makes it an exception. Shortly afterwards, the punt becomes lodged on a low bridge, and the surviving rabbits are forced to swim under it to get out.
Read more about this topic: River Test