mirror of
https://github.com/kovidgoyal/kitty.git
synced 2024-10-06 02:57:33 +03:00
44 lines
1000 B
Go
44 lines
1000 B
Go
// License: GPLv3 Copyright: 2024, Kovid Goyal, <kovid at kovidgoyal.net>
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package utils
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import (
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"fmt"
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"os"
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"os/exec"
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"testing"
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)
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var _ = fmt.Print
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func TestFileLock(t *testing.T) {
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tdir := t.TempDir()
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file_descriptor, err := os.Open(tdir)
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if err != nil {
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t.Fatalf("Initial open of %s failed with error: %s", tdir, err)
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}
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if err = LockFileExclusive(file_descriptor); err != nil {
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file_descriptor.Close()
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t.Fatalf("Initial lock of %s failed with error: %s", tdir, err)
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}
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defer func() {
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_ = UnlockFile(file_descriptor)
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file_descriptor.Close()
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}()
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cmd := exec.Command(KittyExe(), "+runpy", `
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import sys, os, fcntl
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fd = os.open(sys.argv[-1], os.O_RDONLY)
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try:
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fcntl.flock(fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
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except BlockingIOError:
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sys.exit(0)
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else:
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print("Lock unexpectedly succeeded", flush=True)
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sys.exit(1)
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`, tdir)
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if output, err := cmd.CombinedOutput(); err != nil {
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t.Fatalf("Lock test process failed with error: %s and output:\n%s", err, string(output))
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}
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}
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