You can use convert-syntax-error from syntax/macro-testing to convert the syntax error to a runtime error, which can be caught by RackUnit:
http://docs.racket-lang.org/syntax/macro-testing.html#%28form._%28%28lib._syntax%2Fmacro-testing..rkt%29._convert-syntax-error%29%29 Alexis > On Apr 25, 2017, at 23:18, Jinzhou Zhang <lotab...@gmail.com> wrote: > > Hi there, > > I am writing a simple macro `if-let` that tried to bind the condition to a > variable. > > ``` > (define-simple-macro (if-let (~describe "binding pairs" [binding:expr > value:expr]) > (~describe "\"then\" clause" then:expr) > (~describe "\"else\" clause" else:expr)) > (let ([val value]) > (if val (match-let ([binding val]) then) else))) > ``` > > I finished the macro and start to write unit tests for it. Then I realized > that > the "binding" should not working in "else" statement. That means: > > ``` > (if-let [it #f] > 'true > it ; <- should report "unbound identifier". > ) > ``` > > However when I tried the following code: > > ``` > (check-exn exn:fail? > (lambda () > (if-let [it #f] > (fail "if-let: wrong-branch") > it))) > > ``` > > It gives error: > > ``` > it: unbound identifier in module > ``` > > So the question is how to catch the "unbound identifier" exception for unit > test? > > Thanks! -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
