58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
// License: GPLv3 Copyright: 2022, Kovid Goyal, <kovid at kovidgoyal.net>
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package shm
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import (
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"errors"
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"fmt"
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"io/fs"
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"math/rand"
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"os"
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"reflect"
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"testing"
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)
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var _ = fmt.Print
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func TestSHM(t *testing.T) {
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data := make([]byte, 13347)
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rand.Read(data)
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mm, err := CreateTemp("test-kitty-shm-", uint64(len(data)))
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if err != nil {
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t.Fatal(err)
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}
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copy(mm.Slice(), data)
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err = mm.Close()
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if err != nil {
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t.Fatalf("Failed to close with error: %v", err)
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}
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g, err := Open(mm.Name(), uint64(len(data)))
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if err != nil {
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t.Fatal(err)
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}
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data2 := g.Slice()
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if !reflect.DeepEqual(data, data2) {
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t.Fatalf("Could not read back written data: Written data length: %d Read data length: %d", len(data), len(data2))
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}
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err = g.Close()
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if err != nil {
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t.Fatalf("Failed to close with error: %v", err)
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}
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err = g.Unlink()
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if err != nil {
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t.Fatalf("Failed to unlink with error: %v", err)
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}
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g, err = Open(mm.Name(), uint64(len(data)))
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if err == nil {
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t.Fatalf("Unlinking failed could re-open the SHM data. Data equal: %v Data length: %d", reflect.DeepEqual(g.Slice(), data), len(g.Slice()))
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}
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if mm.IsFileSystemBacked() {
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_, err = os.Stat(mm.FileSystemName())
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if !errors.Is(err, fs.ErrNotExist) {
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t.Fatalf("Unlinking %s did not work", mm.Name())
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}
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}
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}
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