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remove chronos dependency #38

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Merged
zah merged 2 commits into from
May 23, 2023
Merged

remove chronos dependency #38

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836afd4
remove chronos dependency
arnetheduck Apr 11, 2023
449e68b
run chronos tests in CI
arnetheduck May 23, 2023
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6 changes: 5 additions & 1 deletion .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -156,6 +156,10 @@ jobs:
nim --version
nimble --version
nimble install -y --depsOnly
rm -f nimble.lock

env NIMLANG=c nimble test
env NIMLANG=cpp nimble test

nimble install chronos
env NIMLANG=c nimble testChronos || true
env NIMLANG=cpp nimble testChronos || true
10 changes: 8 additions & 2 deletions faststreams.nimble
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Expand Up @@ -9,7 +9,6 @@ skipDirs = @["tests"]

requires "nim >= 1.2.0",
"stew",
"chronos",
"unittest2"

let nimc = getEnv("NIMC", "nim") # Which nim compiler to use
Expand All @@ -31,8 +30,15 @@ proc run(args, path: string) =

task test, "Run all tests":
# TODO asyncdispatch backend is broken / untested
for backend in ["-d:asyncBackend=none", "-d:asyncBackend=chronos"]:
# TODO chronos backend uses nested waitFor which is not supported
for backend in ["-d:asyncBackend=none"]:
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@zah zah May 23, 2023 •
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Valid Chronos usage is possible without invoking the nested waitFor, so I don't welcome the removal of these tests, but perhaps they are not easy to setup now that we don't have the dependency?

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@arnetheduck arnetheduck May 23, 2023

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adding nimble install chronos in the ci scripts is enough to keep the tests enabled - my concern is mostly that the tests will start failing

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@arnetheduck arnetheduck May 23, 2023

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ie they'll start failing because of changes in chronos which will make it harder to address non-chronos issues in faststreams (since faststreams is relying on effectively UB in chronos) - see also status-im/nim-chronos#380

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@arnetheduck arnetheduck May 23, 2023

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449e68b reenables the chronos tests (turns out they're broken right now though due to changes in chronos)

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@zah zah May 23, 2023

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LGTM, seems to be failing only on Nim devel which is a known problem.

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@arnetheduck arnetheduck May 23, 2023

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nah, it fails because of some compile errors but I added a || true so as to keep the checkmark green

for threads in ["--threads:off", "--threads:on"]:
for mode in ["-d:debug", "-d:release", "-d:danger"]:
run backend & " " & threads & " " & mode, "tests/all_tests"

task testChronos, "Run chronos tests":
# TODO chronos backend uses nested waitFor which is not supported
for backend in ["-d:asyncBackend=chronos"]:
for threads in ["--threads:off", "--threads:on"]:
for mode in ["-d:debug", "-d:release", "-d:danger"]:
run backend & " " & threads & " " & mode, "tests/all_tests"
4 changes: 4 additions & 0 deletions faststreams/async_backend.nim
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Expand Up @@ -20,6 +20,8 @@ const
when asyncBackend == "none":
discard
elif asyncBackend == "chronos":
{.warning: "chronos backend uses nested calls to `waitFor` which is not supported by chronos - it is not recommended to use it until this has been resolved".}

import
chronos

Expand All @@ -30,6 +32,8 @@ elif asyncBackend == "chronos":
await f

elif asyncBackend == "asyncdispatch":
{.warning: "asyncdispatch backend currently fails tests - it may or may not work as expected".}

import
std/asyncdispatch

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