mbedtls/docs/architecture/psa-migration/outcome-analysis.sh
Janos Follath 12438969fc Remove psa-migration/strategy.md
This document is mainly about a plan that was driven by backward
compatibility constraints that no longer exist in 4.0.

Although some of it is still of interest to explain why 4.0 is the way
it is (and more complicated than one would expect based on the APIs that
are left in 4.0). But for this it should suffice to consult earlier
versions and does not worth to maintain it.

Signed-off-by: Janos Follath <janos.follath@arm.com>
2024-12-17 18:15:51 +00:00

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#!/bin/sh
# This script runs tests before and after a PR and analyzes the results in
# order to highlight any difference in the set of tests skipped.
#
# It can be used to check for unintended consequences when making non-trivial
# changes to compile time guards: the sets of tests skipped in the default
# config and the full config must be the same before and after the PR.
#
# USAGE:
# - First, commit any uncommited changes. (Also, see warning below.)
# - Then launch --> [SKIP_SSL_OPT=1] docs/architecture/psa-migration/outcome-analysis.sh
# - SKIP_SSL_OPT=1 can optionally be set to skip ssl-opt.sh tests
#
# WARNING: this script checks out a commit other than the head of the current
# branch; it checks out the current branch again when running successfully,
# but while the script is running, or if it terminates early in error, you
# should be aware that you might be at a different commit than expected.
#
# NOTE: you can comment out parts that don't need to be re-done when
# re-running this script (for example "get numbers before this PR").
set -eu
: ${SKIP_SSL_OPT:=0}
cleanup() {
make clean
git checkout -- include/mbedtls/mbedtls_config.h tf-psa-crypto/include/psa/crypto_config.h
}
record() {
export MBEDTLS_TEST_OUTCOME_FILE="$PWD/outcome-$1.csv"
rm -f $MBEDTLS_TEST_OUTCOME_FILE
make check
if [ $SKIP_SSL_OPT -eq 0 ]; then
make -C programs ssl/ssl_server2 ssl/ssl_client2 \
test/udp_proxy test/query_compile_time_config
tests/ssl-opt.sh
fi
}
# save current HEAD.
# Note: this can optionally be updated to
# HEAD=$(git branch --show-current)
# when using a Git version above 2.22
HEAD=$(git rev-parse --abbrev-ref HEAD)
# get the numbers before this PR for default and full
cleanup
git checkout $(git merge-base HEAD development)
record "before-default"
cleanup
scripts/config.py full
record "before-full"
# get the numbers now for default and full
cleanup
git checkout $HEAD
record "after-default"
cleanup
scripts/config.py full
record "after-full"
cleanup
# analysis
populate_suites () {
SUITES=''
make generated_files >/dev/null
data_files=$(cd tests/suites && echo *.data)
for data in $data_files; do
suite=${data%.data}
SUITES="$SUITES $suite"
done
make neat
if [ $SKIP_SSL_OPT -eq 0 ]; then
SUITES="$SUITES ssl-opt"
extra_files=$(cd tests/opt-testcases && echo *.sh)
for extra in $extra_files; do
suite=${extra%.sh}
SUITES="$SUITES $suite"
done
fi
}
compare_suite () {
ref="outcome-$1.csv"
new="outcome-$2.csv"
suite="$3"
pattern_suite=";$suite;"
total=$(grep -c "$pattern_suite" "$ref")
sed_cmd="s/^.*$pattern_suite\(.*\);SKIP.*/\1/p"
sed -n "$sed_cmd" "$ref" > skipped-ref
sed -n "$sed_cmd" "$new" > skipped-new
nb_ref=$(wc -l <skipped-ref)
nb_new=$(wc -l <skipped-new)
name=${suite#test_suite_}
printf "%40s: total %4d; skipped %4d -> %4d\n" \
$name $total $nb_ref $nb_new
if diff skipped-ref skipped-new | grep '^> '; then
ret=1
else
ret=0
fi
rm skipped-ref skipped-new
return $ret
}
compare_builds () {
printf "\n*** Comparing $1 -> $2 ***\n"
failed=''
for suite in $SUITES; do
if compare_suite "$1" "$2" "$suite"; then :; else
failed="$failed $suite"
fi
done
if [ -z "$failed" ]; then
printf "No coverage gap found.\n"
else
printf "Suites with less coverage:%s\n" "$failed"
fi
}
populate_suites
compare_builds before-default after-default
compare_builds before-full after-full