From 931208cf91059d32edbf4b595ccbdcced6736cb3 Mon Sep 17 00:00:00 2001
From: Alexander Lais <alexander.lais@sap.com>
Date: Mon, 13 Jan 2025 16:33:33 +0100
Subject: [PATCH] test: fix acceptance tests on Apple Silicon Macs

We observed sporadic compilation or bytecode issues
on Apple Silicon Macs.

According to https://github.com/golang/go/issues/42774,
the env variable `GODEBUG=asyncpreemptoff=1` works around
the issue by disabling asynchronous preemption of
goroutines.

This might impact garbage collection performance, but restores
the same level of reliability to locally running tests as
when run in Docker on an Intel based Mac.

The `GODEBUG=asyncpreemptoff=1` variable is set when creating
the Docker container for running tests locally, and applies
to all Go code, including `go vet`, for which we also observed
sporadic issues.
---
 scripts/create-docker-container.bash | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/scripts/create-docker-container.bash b/scripts/create-docker-container.bash
index d6a50922b..2f6285fe4 100755
--- a/scripts/create-docker-container.bash
+++ b/scripts/create-docker-container.bash
@@ -34,12 +34,20 @@ else
   ARGS="${*}"
 fi
 
+# disable asyncpreempt on MacOS ARM64 (Apple Silicon) as it may cause sporadic errors in emulation
+# see: https://github.com/golang/go/issues/42774
+DISABLE_ASYNC_PREEMPT=
+if [ "$(uname -sm)" == "Darwin arm64" ]; then
+    DISABLE_ASYNC_PREEMPT='--env GODEBUG=asyncpreemptoff=1'
+fi
+
 docker pull "${IMAGE}"
 docker rm -f $CONTAINER_NAME
 docker run -it \
   --env "DB=${DB}" \
   --env "REPO_NAME=$REPO_NAME" \
   --env "REPO_PATH=/repo" \
+  $DISABLE_ASYNC_PREEMPT \
   --rm \
   --name "$CONTAINER_NAME" \
   -v "${REPO_PATH}:/repo" \
@@ -47,4 +55,3 @@ docker run -it \
   ${ARGS} \
   "${IMAGE}" \
   /bin/bash
-