#lang racket (require rackunit rackunit/text-ui unstable/exn "helpers.rkt") (run-tests (test-suite "exn.ss" (test-suite "try" (test-ok (try (+ 1 2))) (test-bad (try (+ 'a 'b))) (test-ok (try (+ 'a 'b) (+ 3 4))) (test-ok (try (+ 1 2) (+ 'a 'b))) (test-bad (try (+ 'a 'b) (+ 'c 'd))))))