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fix flaky test. #1663

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fix flaky test. #1663

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9 changes: 9 additions & 0 deletions driver_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3608,6 +3608,12 @@ func runCallCommand(dbt *DBTest, query, name string) {
func TestIssue1567(t *testing.T) {
// enable TLS.
runTests(t, dsn+"&tls=skip-verify", func(dbt *DBTest) {
var max int
err := dbt.db.QueryRow("SELECT @@max_connections").Scan(&max)
if err != nil {
dbt.Fatalf("%s", err.Error())
}

// disable connection pooling.
// data race happens when new connection is created.
dbt.db.SetMaxIdleConns(0)
Expand All @@ -3627,6 +3633,9 @@ func TestIssue1567(t *testing.T) {
if testing.Short() {
count = 10
}
if count > max {
count = max
}

for i := 0; i < count; i++ {
timeout := time.Duration(mrand.Int63n(int64(rtt)))
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