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minio/pkg/storage/donut/erasure/erasure1/erasure_test.go

90 lines
2.6 KiB

/*
* Mini Object Storage, (C) 2015 Minio, Inc.
*
* 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.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package erasure1
import (
"bytes"
"encoding/binary"
"encoding/gob"
"io"
"testing"
. "gopkg.in/check.v1"
)
func Test(t *testing.T) { TestingT(t) }
type MySuite struct{}
var _ = Suite(&MySuite{})
func (s *MySuite) TestSingleWrite(c *C) {
var testBuffer bytes.Buffer
testData := "Hello, World"
testHeader := DataHeader{
Key: "testobj",
ChunkIndex: 1,
OriginalLength: uint32(len(testData)),
EncoderK: 8,
EncoderM: 8,
EncoderTechnique: Cauchy,
}
err := Write(&testBuffer, testHeader.Key, testHeader.ChunkIndex, testHeader.OriginalLength, testHeader.EncoderK, testHeader.EncoderM, testHeader.EncoderTechnique, bytes.NewBufferString(testData))
c.Assert(err, IsNil)
actualVersion := make([]byte, 4)
_, err = testBuffer.Read(actualVersion)
c.Assert(err, IsNil)
c.Assert(binary.LittleEndian.Uint32(actualVersion), DeepEquals, uint32(1))
actualHeader := DataHeader{}
decoder := gob.NewDecoder(&testBuffer)
decoder.Decode(&actualHeader)
c.Assert(actualHeader, DeepEquals, testHeader)
var actualData bytes.Buffer
dataLength, err := io.Copy(&actualData, &testBuffer)
c.Assert(dataLength, Equals, int64(len(testData)))
c.Assert(actualData.Bytes(), DeepEquals, []byte(testData))
c.Assert(err, IsNil)
}
func (s *MySuite) TestReadWrite(c *C) {
var testBuffer bytes.Buffer
testData := "Hello, World"
testHeader := DataHeader{
Key: "testobj",
ChunkIndex: 1,
OriginalLength: uint32(len(testData)),
EncoderK: 8,
EncoderM: 8,
EncoderTechnique: Cauchy,
}
err := Write(&testBuffer, testHeader.Key, testHeader.ChunkIndex, testHeader.OriginalLength, testHeader.EncoderK, testHeader.EncoderM, testHeader.EncoderTechnique, bytes.NewBufferString(testData))
c.Assert(err, IsNil)
header, err := ReadHeader(&testBuffer)
c.Assert(err, IsNil)
c.Assert(header, DeepEquals, testHeader)
c.Assert(testBuffer.Len(), Equals, len(testData))
c.Assert(testBuffer.Bytes(), DeepEquals, []byte(testData))
}