tests

Documentation

Index

• type Restorer
  • func Patch(dest, value interface{}) Restorer
  • func (r Restorer) Restore()

Types

type Restorer

type Restorer func()

Restorer holds a function that can be used to restore some previous state.

func Patch

func Patch(dest, value interface{}) Restorer

Patch sets the value pointed to by the given destination to the given value, and returns a function to restore it to its original value. The value must be assignable to the element type of the destination.

Example: Patching a global variable called `somenum` with a temporary value of 3. In tests we would type the following:

defer Patch(somenun, 3).Restore()

func (Restorer) Restore

func (r Restorer) Restore()

Restore restores some previous state.