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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ipc_test
import (
"bytes"
"fmt"
"os"
"testing"
"github.com/apache/arrow-go/v18/arrow/array"
"github.com/apache/arrow-go/v18/arrow/internal/arrdata"
"github.com/apache/arrow-go/v18/arrow/internal/flatbuf"
"github.com/apache/arrow-go/v18/arrow/ipc"
"github.com/apache/arrow-go/v18/arrow/memory"
"github.com/stretchr/testify/require"
)
func TestFile(t *testing.T) {
tempDir := t.TempDir()
for name, recs := range arrdata.Records {
t.Run(name, func(t *testing.T) {
mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
defer mem.AssertSize(t, 0)
f, err := os.CreateTemp(tempDir, "go-arrow-file-")
if err != nil {
t.Fatal(err)
}
defer f.Close()
arrdata.WriteFile(t, f, mem, recs[0].Schema(), recs)
arrdata.CheckArrowFile(t, f, mem, recs[0].Schema(), recs)
arrdata.CheckArrowConcurrentFile(t, f, mem, recs[0].Schema(), recs)
})
}
}
func TestFileCompressed(t *testing.T) {
tempDir := t.TempDir()
compressTypes := []flatbuf.CompressionType{
flatbuf.CompressionTypeLZ4_FRAME, flatbuf.CompressionTypeZSTD,
}
for _, codec := range compressTypes {
for name, recs := range arrdata.Records {
for _, n := range []int{0, 1, 2, 3} {
t.Run(fmt.Sprintf("%s compress concurrency %d", name, n), func(t *testing.T) {
mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
defer mem.AssertSize(t, 0)
f, err := os.CreateTemp(tempDir, "go-arrow-file-")
if err != nil {
t.Fatal(err)
}
defer f.Close()
arrdata.WriteFileCompressed(t, f, mem, recs[0].Schema(), recs, codec, n)
arrdata.CheckArrowFile(t, f, mem, recs[0].Schema(), recs)
arrdata.CheckArrowConcurrentFile(t, f, mem, recs[0].Schema(), recs)
})
}
}
}
}
func TestFileEmbedsStream(t *testing.T) {
mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
defer mem.AssertSize(t, 0)
recs := arrdata.Records["primitives"]
schema := recs[0].Schema()
var buf bytes.Buffer
w, err := ipc.NewFileWriter(&buf, ipc.WithSchema(schema), ipc.WithAllocator(mem))
require.NoError(t, err)
defer w.Close()
for _, rec := range recs {
require.NoError(t, w.Write(rec))
}
require.NoError(t, w.Close())
// we should be able to read a valid ipc stream within the ipc file
// create an ipc stream reader, skipping the file magic+padding bytes
rdr, err := ipc.NewReader(bytes.NewReader(buf.Bytes()[8:]), ipc.WithSchema(schema), ipc.WithAllocator(mem))
require.NoError(t, err)
defer rdr.Release()
// the stream reader should know to stop before the footer if the EOS indicator is properly written
var i int
for rdr.Next() {
rec := rdr.Record()
require.Truef(t, array.RecordEqual(rec, recs[i]), "records[%d] differ", i)
i++
}
require.NoError(t, rdr.Err())
}
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