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ocf_writer_test.go
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// Copyright 2015 LinkedIn Corp. Licensed 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.Copyright [201X] LinkedIn Corp. Licensed 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.
package goavro
import (
"bytes"
"io"
"testing"
)
var defaultSync []byte
func init() {
defaultSync = []byte("\x21\x0f\xc7\xbb\x81\x86\x39\xac\x48\xa4\xc6\xaf\xa2\xf1\x58\x1a")
}
func TestNewWriterBailsUnsupportedCodec(t *testing.T) {
var err error
_, err = NewWriter(ToWriter(new(bytes.Buffer)), Compression(""))
checkError(t, err, "unsupported codec")
_, err = NewWriter(ToWriter(new(bytes.Buffer)), Compression("ficticious test codec name"))
checkError(t, err, "unsupported codec")
}
func TestNewWriterBailsMissingWriterSchema(t *testing.T) {
var err error
_, err = NewWriter(ToWriter(new(bytes.Buffer)))
checkError(t, err, "missing schema")
_, err = NewWriter(ToWriter(new(bytes.Buffer)), Compression(CompressionNull))
checkError(t, err, "missing schema")
_, err = NewWriter(ToWriter(new(bytes.Buffer)), Compression(CompressionDeflate))
checkError(t, err, "missing schema")
_, err = NewWriter(ToWriter(new(bytes.Buffer)), Compression(CompressionSnappy))
checkError(t, err, "missing schema")
}
func TestNewWriterBailsInvalidWriterSchema(t *testing.T) {
_, err := NewWriter(WriterSchema("this should not compile"))
checkError(t, err, "cannot parse schema")
}
func TestNewWriterBailsBadSync(t *testing.T) {
_, err := NewWriter(WriterSchema(`"int"`), Sync(make([]byte, 0)))
checkError(t, err, "sync marker ought to be 16 bytes long")
_, err = NewWriter(WriterSchema(`"int"`), Sync(make([]byte, syncLength-1)))
checkError(t, err, "sync marker ought to be 16 bytes long")
_, err = NewWriter(WriterSchema(`"int"`), Sync(make([]byte, syncLength+1)))
checkError(t, err, "sync marker ought to be 16 bytes long")
}
func TestNewWriterCreatesRandomSync(t *testing.T) {
bb := new(bytes.Buffer)
func(w io.Writer) {
fw, err := NewWriter(ToWriter(w), WriterSchema(`"int"`))
if err != nil {
t.Fatalf("Actual: %#v; Expected: %#v", err, nil)
}
defer fw.Close()
}(bb)
notExpected := []byte("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")
actual := bb.Bytes()
actual = actual[len(actual)-syncLength:]
if bytes.Compare(actual, notExpected) == 0 {
t.Errorf("Actual: %#v; Expected: some non-zero value bits", actual)
}
}
func TestWriteHeaderCustomSync(t *testing.T) {
bb := new(bytes.Buffer)
func(w io.Writer) {
fw, err := NewWriter(ToWriter(w), WriterSchema(`"int"`), Sync(defaultSync))
if err != nil {
t.Fatalf("Actual: %#v; Expected: %#v", err, nil)
}
fw.Close()
}(bb)
expected := []byte("Obj\x01\x02\x16avro.schema\x0a\x22int\x22\x00\x21\x0f\xc7\xbb\x81\x86\x39\xac\x48\xa4\xc6\xaf\xa2\xf1\x58\x1a")
actual := bb.Bytes()
if !bytes.Equal(actual, expected) {
t.Errorf("Actual: %#v; Expected: %#v", actual, expected)
}
}
func TestWriteWithNullCodec(t *testing.T) {
bb := new(bytes.Buffer)
func(w io.Writer) {
fw, err := NewWriter(BufferToWriter(w), WriterSchema(`"int"`), Sync(defaultSync))
if err != nil {
t.Fatalf("Actual: %#v; Expected: %#v", err, nil)
}
defer fw.Close()
fw.Write(int32(13))
fw.Write(int32(42))
fw.Write(int32(54))
fw.Write(int32(99))
}(bb)
t.Logf("bb: %+v", bb.Bytes())
expected := []byte("Obj\x01\x02\x16avro.schema\x0a\x22int\x22\x00" + string(defaultSync) + "\x08\x0a\x1a\x54\x6c\xc6\x01" + string(defaultSync))
actual := bb.Bytes()
if !bytes.Equal(actual, expected) {
t.Errorf("Actual: %#v; Expected: %#v", actual, expected)
}
}
func TestWriteWithDeflateCodec(t *testing.T) {
bb := new(bytes.Buffer)
func(w io.Writer) {
fw, err := NewWriter(
BlockSize(2),
Compression(CompressionDeflate),
WriterSchema(`"int"`),
Sync(defaultSync),
ToWriter(w))
if err != nil {
t.Fatalf("Actual: %#v; Expected: %#v", err, nil)
}
defer fw.Close()
fw.Write(int32(13))
fw.Write(int32(42))
fw.Write(int32(54))
fw.Write(int32(99))
}(bb)
// NOTE: because key value pair ordering is indeterminate,
// there are two valid possibilities for the encoded map:
compressed := "\x04\x10\x92\x0a\x01\x04\x00\x00\xff\xff\x21\x0f\xc7\xbb\x81\x86\x39\xac\x48\xa4\xc6\xaf\xa2\xf1\x58\x1a\x04\x12\xca\x39\xc6\x08\x08\x00\x00\xff\xff"
option1 := []byte("Obj\x01\x04\x14avro.codec\x0edeflate\x16avro.schema\x0a\x22int\x22\x00" + string(defaultSync) + compressed + string(defaultSync))
option2 := []byte("Obj\x01\x04\x16avro.schema\x0a\x22int\x22\x14avro.codec\x0edeflate\x00" + string(defaultSync) + compressed + string(defaultSync))
actual := bb.Bytes()
if !bytes.Equal(actual, option1) && !bytes.Equal(actual, option2) {
t.Errorf("Actual: %#v; Expected: %#v", actual, option1)
}
}
func TestWriteWithSnappyCodec(t *testing.T) {
bb := new(bytes.Buffer)
func(w io.Writer) {
fw, err := NewWriter(
BlockSize(2),
Compression(CompressionSnappy),
WriterSchema(`"int"`),
Sync(defaultSync),
ToWriter(w))
if err != nil {
t.Fatalf("Actual: %#v; Expected: %#v", err, nil)
}
defer fw.Close()
fw.Write(int32(13))
fw.Write(int32(42))
fw.Write(int32(54))
fw.Write(int32(99))
}(bb)
// NOTE: because key value pair ordering is indeterminate,
// there are two valid possibilities for the encoded map:
compressed := "\x04\x10\x02\x04\x1aT\x9d\xf2}\xc9!\x0fǻ\x81\x869\xacH\xa4Ư\xa2\xf1X\x1a\x04\x12\x03\bl\xc6\x01T+\xab\b"
option1 := []byte("Obj\x01\x04\x16avro.schema\x0a\x22int\x22\x14avro.codec\x0csnappy\x00" + string(defaultSync) + compressed + string(defaultSync))
option2 := []byte("Obj\x01\x04\x14avro.codec\x0csnappy\x16avro.schema\x0a\x22int\x22\x00" + string(defaultSync) + compressed + string(defaultSync))
actual := bb.Bytes()
if !bytes.Equal(actual, option1) && !bytes.Equal(actual, option2) {
t.Errorf("Actual: %q; Expected: %q", actual, option1)
}
}
func TestWriteOtherMetaData(t *testing.T) {
bb := new(bytes.Buffer)
fw, err := NewWriter(
BlockSize(2),
Metadata(map[string][]byte{"foo": []byte("BOING")}),
WriterSchema(`"int"`),
ToWriter(bb))
if err != nil {
t.Fatalf("Actual: %v; Expected: %#v", err, nil)
}
fw.Write(int32(13))
fw.Write(int32(42))
fw.Write(int32(54))
fw.Write(int32(99))
fw.Close()
fr, err := NewReader(FromReader(bb))
if err != nil {
t.Fatalf("Actual: %v; Expected: %#v", err, nil)
}
if string(fr.Metadata["foo"]) != "BOING" {
t.Fatalf("Actual: %v; Expected: %#v", fr.Metadata["foo"], []byte("BOING"))
}
}