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// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package os_test
import (
. "os"
"runtime"
"testing"
)
func TestOpenFileLimit(t *testing.T) {
// For open file count,
// macOS sets the default soft limit to 256 and no hard limit.
// CentOS and Fedora set the default soft limit to 1024,
// with hard limits of 4096 and 524288, respectively.
// Check that we can open 1200 files, which proves
// that the rlimit is being raised appropriately on those systems.
fileCount := 1200
// OpenBSD has a default soft limit of 512 and hard limit of 1024.
if runtime.GOOS == "openbsd" {
fileCount = 768
}
var files []*File
for i := 0; i < fileCount; i++ {
f, err := Open("rlimit.go")
if err != nil {
t.Error(err)
break
}
files = append(files, f)
}
for _, f := range files {
f.Close()
}
}
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