moby--moby/hack/make/test-integration-flaky

#!/usr/bin/env bash
set -e -o pipefail

source hack/validate/.validate
new_tests=$(
    validate_diff --diff-filter=ACMR --unified=0 -- 'integration/*_test.go' |
    grep -E '^(\+func )(.*)(\*testing)' || true
)

if [ -z "$new_tests" ]; then
    echo 'No new tests added to integration.'
    return
fi

echo
echo "Found new integrations tests:"
echo "$new_tests"
echo "Running stress test for them."

(
    TESTARRAY=$(echo "$new_tests" | sed 's/+func //' | awk -F'\\(' '{print $1}' | tr '\n' '|')
    # Note: TEST_REPEAT will make the test suite run 5 times, restarting the daemon
    # whereas testcount will make each test run 5 times in a row under the same daemon.
    # This will make a total of 25 runs for each test in TESTARRAY.
    export TEST_REPEAT=5
    local testcount=5
    # However, TIMEOUT needs to take testcount into account, or a premature time out may happen.
    # The following ugliness will:
    # - remove last character (usually 'm' from '10m')
    # - multiply by testcount
    # - add last character back
    export TIMEOUT=$((${TIMEOUT::-1} * $testcount))${TIMEOUT:$((${#TIMEOUT}-1)):1}

    export TESTFLAGS="-test.count $testcount -test.run ${TESTARRAY%?}"
    echo "Using test flags: $TESTFLAGS"
    source hack/make/test-integration
)