Hello, I think I found a bug in (srfi srfi-64) module shipped with GNU Guile.
The specification says the following regarding the test-approximate: > This is equivalent to (except that each argument is only evaluated once): > > > (test-assert [test-name] > (and (>= test-expr (- expected error)) > (<= test-expr (+ expected error)))) However the test-name is evaluated multiple times: (use-modules (srfi srfi-64)) (test-begin "x") (test-approximate (pk "t") 1 1 0) Leading to: ;;; ("t") ;;; ("t") Have a nice day Tomas Volf