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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package partitiontest
import (
"hash/fnv"
"os"
"runtime"
"strconv"
"testing"
)
// PartitionTest checks if the current partition should run this test, and skips it if not.
func PartitionTest(t *testing.T) {
pt, found := os.LookupEnv("PARTITION_TOTAL")
if !found {
return
}
partitions, err := strconv.Atoi(pt)
if err != nil {
return
}
pid := os.Getenv("PARTITION_ID")
partitionID, err := strconv.Atoi(pid)
if err != nil {
return
}
name := t.Name()
_, file, _, _ := runtime.Caller(1) // get filename of caller to PartitionTest
nameNumber := stringToUint64(file + ":" + name)
idx := nameNumber % uint64(partitions)
if idx != uint64(partitionID) {
t.Skipf("skipping %s due to partitioning: assigned to %d but I am %d of %d", name, idx, partitionID, partitions)
}
}
func stringToUint64(str string) uint64 {
h := fnv.New64a()
h.Write([]byte(str))
return h.Sum64()
}
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