forked from spiffe/spire
/
race.go
45 lines (40 loc) · 950 Bytes
/
race.go
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package util
import (
"fmt"
"os"
"strconv"
"testing"
)
var (
raceTestNumThreads = 2
raceTestNumLoops = 2
)
func init() {
raceTestNumThreads = getEnvInt("SPIRE_TEST_RACE_NUM_THREADS", raceTestNumThreads)
raceTestNumLoops = getEnvInt("SPIRE_TEST_RACE_NUM_LOOPS", raceTestNumLoops)
}
func RaceTest(t *testing.T, fn func(*testing.T)) {
// wrap in a top level group to ensure all subtests
// complete before this method returns. All subtests
// will be run in parallel
t.Run("group", func(t *testing.T) {
for i := 0; i < raceTestNumThreads; i++ {
t.Run(fmt.Sprintf("thread %v", i), func(t *testing.T) {
t.Parallel()
for i := 0; i < raceTestNumLoops; i++ {
fn(t)
}
})
}
})
}
func getEnvInt(name string, fallback int) int {
if env := os.Getenv(name); env != "" {
val, err := strconv.Atoi(env)
if err != nil {
panic(fmt.Sprintf("%v invalid value: %v", name, err))
}
return val
}
return fallback
}