test: add a helper shell script to run tests

The script will set up a TMPDIR and will copy the test artifacts to
/srv so they can be hardlinked to save space and IO.

Signed-off-by: Pablo Barbáchano <pablob@amazon.com>

Author: pb8o

tests/framework/defs.py

@@ -45,7 +45,10 @@
 
 SUPPORTED_HOST_KERNELS = ["4.14", "5.10", "6.1"]
 
+IMG_DIR = Path(DEFAULT_TEST_SESSION_ROOT_PATH) / "img"
 
-ARTIFACT_DIR = (
-    Path(__file__).joinpath("../../../build/img").resolve() / platform.machine()
-)
+# fall-back to the local directory
+if not IMG_DIR.exists():
+    IMG_DIR = Path(__file__).joinpath("../../../build/img").resolve()
+
+ARTIFACT_DIR = IMG_DIR / platform.machine()

tools/devtool

@@ -624,14 +624,14 @@ cmd_test() {
         --ulimit core=0 \
         --ulimit nofile=4096:4096 \
         --ulimit memlock=-1:-1 \
-        --workdir "$CTR_FC_ROOT_DIR/tests" \
+        --workdir "$CTR_FC_ROOT_DIR" \
         --cpuset-cpus="$cpuset_cpus" \
         --cpuset-mems="$cpuset_mems" \
         --env-file env.list \
         -v /boot:/boot \
         ${ramdisk_args} \
         -- \
-        pytest "$@"
+        ./tools/test.sh "$@"
 
     ret=$?
 

tools/test.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Copyright 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+# fail if we encounter an error, uninitialized variable or a pipe breaks
+set -eu -o pipefail
+
+TOOLS_DIR=$(dirname $0)
+source "$TOOLS_DIR/functions"
+
+# Set our TMPDIR inside /srv, so all files created in the session end up in one
+# place
+say "Create TMPDIR in /srv"
+export TMPDIR=/srv/tmp
+mkdir -pv $TMPDIR
+
+say "Copy CI artifacts to /srv, so hardlinks work"
+cp -ruvf build/img /srv
+
+cd tests
+pytest "$@"
+exit $?