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Diffstat (limited to 'tests/async/tasync_traceback.nim')
| -rw-r--r-- | tests/async/tasync_traceback.nim | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/tests/async/tasync_traceback.nim b/tests/async/tasync_traceback.nim new file mode 100644 index 000000000..08f7e7317 --- /dev/null +++ b/tests/async/tasync_traceback.nim @@ -0,0 +1,116 @@ +discard """ + exitcode: 0 + disabled: "windows" + output: ''' +b failure +Async traceback: + tasync_traceback.nim(97) tasync_traceback + asyncmacro.nim(395) a + asyncmacro.nim(34) a_continue + ## Resumes an async procedure + tasync_traceback.nim(95) aIter + asyncmacro.nim(395) b + asyncmacro.nim(34) b_continue + ## Resumes an async procedure + tasync_traceback.nim(92) bIter + #[ + tasync_traceback.nim(97) tasync_traceback + asyncmacro.nim(395) a + asyncmacro.nim(43) a_continue + ## Resumes an async procedure + asyncfutures.nim(211) callback= + asyncfutures.nim(190) addCallback + asyncfutures.nim(53) callSoon + asyncmacro.nim(34) a_continue + ## Resumes an async procedure + asyncmacro.nim(0) aIter + asyncfutures.nim(304) read + ]# +Exception message: b failure +Exception type: + +bar failure +Async traceback: + tasync_traceback.nim(113) tasync_traceback + asyncdispatch.nim(1492) waitFor + asyncdispatch.nim(1496) poll + ## Processes asynchronous completion events + asyncdispatch.nim(1262) runOnce + asyncdispatch.nim(183) processPendingCallbacks + ## Executes pending callbacks + asyncmacro.nim(34) bar_continue + ## Resumes an async procedure + tasync_traceback.nim(108) barIter + #[ + tasync_traceback.nim(113) tasync_traceback + asyncdispatch.nim(1492) waitFor + asyncdispatch.nim(1496) poll + ## Processes asynchronous completion events + asyncdispatch.nim(1262) runOnce + asyncdispatch.nim(183) processPendingCallbacks + ## Executes pending callbacks + asyncmacro.nim(34) foo_continue + ## Resumes an async procedure + asyncmacro.nim(0) fooIter + asyncfutures.nim(304) read + ]# +Exception message: bar failure +Exception type:''' +""" +import asyncdispatch + +# Tests to ensure our exception trace backs are friendly. + +# --- Simple test. --- +# +# What does this look like when it's synchronous? +# +# tasync_traceback.nim(23) tasync_traceback +# tasync_traceback.nim(21) a +# tasync_traceback.nim(18) b +# Error: unhandled exception: b failure [OSError] +# +# Good (not quite ideal, but gotta work within constraints) traceback, +# when exception is unhandled: +# +# <traceback for the unhandled exception> +# <very much a bunch of noise> +# <would be ideal to customise this> +# <(the code responsible is in excpt:raiseExceptionAux)> +# Error: unhandled exception: b failure +# =============== +# Async traceback +# =============== +# +# tasync_traceback.nim(23) tasync_traceback +# +# tasync_traceback.nim(21) a +# tasync_traceback.nim(18) b + +proc b(): Future[int] {.async.} = + if true: + raise newException(OSError, "b failure") + +proc a(): Future[int] {.async.} = + return await b() + +let aFut = a() +try: + discard waitFor aFut +except Exception as exc: + echo exc.msg +echo() + +# From #6803 +proc bar(): Future[string] {.async.} = + await sleepAsync(100) + if true: + raise newException(OSError, "bar failure") + +proc foo(): Future[string] {.async.} = return await bar() + +try: + echo waitFor(foo()) +except Exception as exc: + echo exc.msg +echo() \ No newline at end of file |