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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 parquet_test
import (
"bytes"
"testing"
"github.com/apache/arrow-go/v18/arrow/memory"
"github.com/apache/arrow-go/v18/parquet"
"github.com/apache/arrow-go/v18/parquet/compress"
"github.com/stretchr/testify/assert"
)
func TestReaderPropBasics(t *testing.T) {
props := parquet.NewReaderProperties(nil)
assert.Equal(t, parquet.DefaultBufSize, props.BufferSize)
assert.False(t, props.BufferedStreamEnabled)
}
func TestWriterPropBasics(t *testing.T) {
props := parquet.NewWriterProperties()
assert.Equal(t, parquet.DefaultDataPageSize, props.DataPageSize())
assert.Equal(t, parquet.DefaultDictionaryPageSizeLimit, props.DictionaryPageSizeLimit())
assert.Equal(t, parquet.V2_LATEST, props.Version())
assert.Equal(t, parquet.DataPageV1, props.DataPageVersion())
}
func TestWriterPropAdvanced(t *testing.T) {
props := parquet.NewWriterProperties(
parquet.WithCompressionFor("gzip", compress.Codecs.Gzip),
parquet.WithCompressionFor("zstd", compress.Codecs.Zstd),
parquet.WithCompression(compress.Codecs.Snappy),
parquet.WithEncoding(parquet.Encodings.DeltaBinaryPacked),
parquet.WithEncodingFor("delta-length", parquet.Encodings.DeltaLengthByteArray),
parquet.WithDataPageVersion(parquet.DataPageV2),
parquet.WithRootName("test2"),
parquet.WithRootRepetition(parquet.Repetitions.Required))
assert.Equal(t, compress.Codecs.Gzip, props.CompressionPath(parquet.ColumnPathFromString("gzip")))
assert.Equal(t, compress.Codecs.Zstd, props.CompressionFor("zstd"))
assert.Equal(t, compress.Codecs.Snappy, props.CompressionPath(parquet.ColumnPathFromString("delta-length")))
assert.Equal(t, parquet.Encodings.DeltaBinaryPacked, props.EncodingFor("gzip"))
assert.Equal(t, parquet.Encodings.DeltaLengthByteArray, props.EncodingPath(parquet.ColumnPathFromString("delta-length")))
assert.Equal(t, parquet.DataPageV2, props.DataPageVersion())
assert.Equal(t, "test2", props.RootName())
assert.Equal(t, parquet.Repetitions.Required, props.RootRepetition())
}
func TestReaderPropsGetStreamInsufficient(t *testing.T) {
data := "shorter than expected"
buf := memory.NewBufferBytes([]byte(data))
rdr := bytes.NewReader(buf.Bytes())
props := parquet.NewReaderProperties(nil)
_, err := props.GetStream(rdr, 12, 15)
assert.Error(t, err)
}
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