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path: root/tests/deckard/ci/compare-tests.sh
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#!/bin/bash
set -o nounset -o xtrace -o errexit
source "$(dirname "$0")/common.sh"
TESTRUNNER="$1"
: comparing results from test script "${TESTRUNNER}"

# Run specified test runner on HEAD and again on merge base for master..HEAD
# Fail if result of any test not modified between master..HEAD changed
# (i.e. any change in Deckard should not change results of non-modified tests)

function find_modified_tests {
	: detect tests affected by current merge request
	: store list of modified tests in ${MODIFIED_TESTS_FILE}
	git diff --numstat "${MERGEBASE}..${HEAD}" | cut -f 3 | fgrep .rpl > "${MODIFIED_TESTS_FILE}" || : no modified tests detected
}

MODIFIED_TESTS_FILE="/tmp/modified_tests"
find_modified_tests
LOGS[0]="${MODIFIED_TESTS_FILE}"
LOGS[1]="/tmp/base.xml"
LOGS[2]="/tmp/head.xml"

: get test results from version under test
"${TESTRUNNER}" -n $(nproc) --junit-xml=/tmp/head.xml || : some tests on HEAD ${HEAD} failed

: get test results from common ancestor with master branch
git checkout --force --detach "${MERGEBASE}"
git clean -xdf
"${TESTRUNNER}" -n $(nproc) --junit-xml=/tmp/base.xml || : some tests on merge base ${MERGEBASE} failed
"${CIDIR}/junit-compare.py" /tmp/head.xml /tmp/base.xml /tmp/modified_tests && echo "OK, no differences found"