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package flamegraph
import (
"os"
"path/filepath"
"syscall"
"testing"
"ior/internal/types"
"github.com/DataDog/zstd"
)
func writeTestIorZst(t *testing.T, dir string) string {
t.Helper()
iod := newIorData()
iod.add("/tmp/test", types.SYS_ENTER_OPENAT, "tester", 100, 200, flagsType(syscall.O_RDONLY), Counter{
Count: 1,
Duration: 10,
DurationToPrev: 2,
Bytes: 0,
})
serialized, err := iod.serialize()
if err != nil {
t.Fatalf("serialize: %v", err)
}
path := filepath.Join(dir, "sample.ior.zst")
fd, err := os.Create(path)
if err != nil {
t.Fatalf("create test ior file: %v", err)
}
defer fd.Close()
enc := zstd.NewWriter(fd)
if _, err := enc.Write(serialized); err != nil {
t.Fatalf("write zstd payload: %v", err)
}
if err := enc.Close(); err != nil {
t.Fatalf("close zstd writer: %v", err)
}
return path
}
func TestWriteSVGFromFileCleansUpPartialOutputOnError(t *testing.T) {
dir := t.TempDir()
iorFile := writeTestIorZst(t, dir)
n := NewNativeSVG([]string{"invalidField"}, "count")
outFile, err := n.WriteSVGFromFile(iorFile)
if err == nil {
t.Fatal("expected error for invalid field, got nil")
}
if _, statErr := os.Stat(outFile); !os.IsNotExist(statErr) {
t.Fatalf("expected partial output to be removed, stat err=%v", statErr)
}
}
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