zeroshade commented on a change in pull request #9862:
URL: https://github.com/apache/arrow/pull/9862#discussion_r606825834
##########
File path: go/arrow/internal/arrdata/ioutil.go
##########
@@ -172,6 +173,47 @@ func WriteFile(t *testing.T, f *os.File, mem
memory.Allocator, schema *arrow.Sch
}
}
+// WriteFile writes a list of records to the given file descriptor, as an
ARROW file.
+func WriteFileCompressed(t *testing.T, f *os.File, mem memory.Allocator,
schema *arrow.Schema, recs []array.Record, codec flatbuf.CompressionType) {
+ t.Helper()
+
+ opts := []ipc.Option{ipc.WithSchema(schema), ipc.WithAllocator(mem)}
+ switch codec {
+ case flatbuf.CompressionTypeLZ4_FRAME:
+ opts = append(opts, ipc.WithLZ4())
+ case flatbuf.CompressionTypeZSTD:
+ opts = append(opts, ipc.WithZstd())
+ }
+
+ w, err := ipc.NewFileWriter(f, opts...)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer w.Close()
+
+ for i, rec := range recs {
+ err = w.Write(rec)
+ if err != nil {
+ t.Fatalf("could not write record[%d]: %v", i, err)
+ }
+ }
+
+ err = w.Close()
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ err = f.Sync()
+ if err != nil {
+ t.Fatalf("could not sync data to disk: %v", err)
+ }
+
+ _, err = f.Seek(0, io.SeekStart)
Review comment:
sure thing
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