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91 lines
2.0 KiB
91 lines
2.0 KiB
5 years ago
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/*
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* Minio Cloud Storage, (C) 2018 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package parquet
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import (
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"io"
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"os"
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"testing"
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"github.com/minio/minio-go/v6/pkg/set"
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)
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func getReader(name string, offset int64, length int64) (io.ReadCloser, error) {
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file, err := os.Open(name)
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if err != nil {
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return nil, err
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}
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fi, err := file.Stat()
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if err != nil {
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return nil, err
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}
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if offset < 0 {
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offset = fi.Size() + offset
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}
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if _, err = file.Seek(offset, os.SEEK_SET); err != nil {
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return nil, err
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}
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return file, nil
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}
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func TestReader(t *testing.T) {
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name := "example.parquet"
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reader, err := NewReader(
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func(offset, length int64) (io.ReadCloser, error) {
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return getReader(name, offset, length)
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},
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set.CreateStringSet("one", "two", "three"),
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)
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if err != nil {
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t.Fatal(err)
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}
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expectedRecords := []string{
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`map[one:{-1 DOUBLE} three:{true BOOLEAN} two:{[102 111 111] BYTE_ARRAY}]`,
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`map[one:{<nil> DOUBLE} three:{false BOOLEAN} two:{[98 97 114] BYTE_ARRAY}]`,
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`map[one:{2.5 DOUBLE} three:{true BOOLEAN} two:{[98 97 122] BYTE_ARRAY}]`,
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}
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i := 0
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for {
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record, err := reader.Read()
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if err != nil {
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if err != io.EOF {
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t.Error(err)
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}
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break
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}
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if i == len(expectedRecords) {
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t.Fatalf("read more than expected record count %v", len(expectedRecords))
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}
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if record.String() != expectedRecords[i] {
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t.Fatalf("record%v: expected: %v, got: %v", i+1, expectedRecords[i], record.String())
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}
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i++
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}
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reader.Close()
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}
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