libcall-context-perl - 0.05-1 main

If your function only expects to return a list, then a call in some other
context is, by definition, an error. The problem is that, depending on how
the function is written, it may actually do something expected in testing,
but then in production act differently.
.
The Call::Context module offers some functions to check if the calling
function is itself called in the expected context.