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efc80343e3
minio/fs_api_suite_test.go
Harshavardhana efc80343e3 fs: Break fs package to top-level and introduce ObjectAPI interface. 
ObjectAPI interface brings in changes needed for XL ObjectAPI layer.

The new interface for any ObjectAPI layer is as below

```
// ObjectAPI interface.
type ObjectAPI interface {
        // Bucket resource API.
        DeleteBucket(bucket string) *probe.Error
        ListBuckets() ([]BucketInfo, *probe.Error)
        MakeBucket(bucket string) *probe.Error
        GetBucketInfo(bucket string) (BucketInfo, *probe.Error)

        // Bucket query API.
        ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsResult, *probe.Error)
        ListMultipartUploads(bucket string, resources BucketMultipartResourcesMetadata) (BucketMultipartResourcesMetadata, *probe.Error)

        // Object resource API.
        GetObject(bucket, object string, startOffset int64) (io.ReadCloser, *probe.Error)
        GetObjectInfo(bucket, object string) (ObjectInfo, *probe.Error)
        PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string) (ObjectInfo, *probe.Error)
        DeleteObject(bucket, object string) *probe.Error

        // Object query API.
        NewMultipartUpload(bucket, object string) (string, *probe.Error)
        PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string) (string, *probe.Error)
        ListObjectParts(bucket, object string, resources ObjectResourcesMetadata) (ObjectResourcesMetadata, *probe.Error)
        CompleteMultipartUpload(bucket string, object string, uploadID string, parts []CompletePart) (ObjectInfo, *probe.Error)
        AbortMultipartUpload(bucket, object, uploadID string) *probe.Error
}
```
2016-04-01 15:58:39 -07:00

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/*
* Minimalist Object Storage, (C) 2015, 2016 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 main
import (
"bytes"
"crypto/md5"
"encoding/hex"
"io"
"math/rand"
"strconv"
"gopkg.in/check.v1"
)
// APITestSuite - collection of API tests
func APITestSuite(c *check.C, create func() ObjectAPI) {
testMakeBucket(c, create)
testMultipleObjectCreation(c, create)
testPaging(c, create)
testObjectOverwriteWorks(c, create)
testNonExistantBucketOperations(c, create)
testBucketRecreateFails(c, create)
testPutObjectInSubdir(c, create)
testListBuckets(c, create)
testListBucketsOrder(c, create)
testListObjectsTestsForNonExistantBucket(c, create)
testNonExistantObjectInBucket(c, create)
testGetDirectoryReturnsObjectNotFound(c, create)
testDefaultContentType(c, create)
testMultipartObjectCreation(c, create)
testMultipartObjectAbort(c, create)
}
func testMakeBucket(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
}
func testMultipartObjectCreation(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
uploadID, err := fs.NewMultipartUpload("bucket", "key")
c.Assert(err, check.IsNil)
completedParts := CompleteMultipartUpload{}
//completedParts.Part = make([]CompletePart, 10)
for i := 1; i <= 10; i++ {
randomPerm := rand.Perm(10)
randomString := ""
for _, num := range randomPerm {
randomString = randomString + strconv.Itoa(num)
}
hasher := md5.New()
hasher.Write([]byte(randomString))
expectedMD5Sumhex := hex.EncodeToString(hasher.Sum(nil))
var calculatedMD5sum string
calculatedMD5sum, err = fs.PutObjectPart("bucket", "key", uploadID, i, int64(len(randomString)), bytes.NewBufferString(randomString), expectedMD5Sumhex)
c.Assert(err, check.IsNil)
c.Assert(calculatedMD5sum, check.Equals, expectedMD5Sumhex)
completedParts.Parts = append(completedParts.Parts, CompletePart{PartNumber: i, ETag: calculatedMD5sum})
}
objectInfo, err := fs.CompleteMultipartUpload("bucket", "key", uploadID, completedParts.Parts)
c.Assert(err, check.IsNil)
c.Assert(objectInfo.MD5Sum, check.Equals, "9b7d6f13ba00e24d0b02de92e814891b-10")
}
func testMultipartObjectAbort(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
uploadID, err := fs.NewMultipartUpload("bucket", "key")
c.Assert(err, check.IsNil)
parts := make(map[int]string)
for i := 1; i <= 10; i++ {
randomPerm := rand.Perm(10)
randomString := ""
for _, num := range randomPerm {
randomString = randomString + strconv.Itoa(num)
}
hasher := md5.New()
hasher.Write([]byte(randomString))
expectedMD5Sumhex := hex.EncodeToString(hasher.Sum(nil))
var calculatedMD5sum string
calculatedMD5sum, err = fs.PutObjectPart("bucket", "key", uploadID, i, int64(len(randomString)), bytes.NewBufferString(randomString), expectedMD5Sumhex)
c.Assert(err, check.IsNil)
c.Assert(calculatedMD5sum, check.Equals, expectedMD5Sumhex)
parts[i] = expectedMD5Sumhex
}
err = fs.AbortMultipartUpload("bucket", "key", uploadID)
c.Assert(err, check.IsNil)
}
func testMultipleObjectCreation(c *check.C, create func() ObjectAPI) {
objects := make(map[string][]byte)
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
for i := 0; i < 10; i++ {
randomPerm := rand.Perm(10)
randomString := ""
for _, num := range randomPerm {
randomString = randomString + strconv.Itoa(num)
}
hasher := md5.New()
hasher.Write([]byte(randomString))
expectedMD5Sumhex := hex.EncodeToString(hasher.Sum(nil))
key := "obj" + strconv.Itoa(i)
objects[key] = []byte(randomString)
var objectInfo ObjectInfo
metadata := make(map[string]string)
metadata["md5Sum"] = expectedMD5Sumhex
objectInfo, err = fs.PutObject("bucket", key, int64(len(randomString)), bytes.NewBufferString(randomString), metadata)
c.Assert(err, check.IsNil)
c.Assert(objectInfo.MD5Sum, check.Equals, expectedMD5Sumhex)
}
for key, value := range objects {
var byteBuffer bytes.Buffer
r, err := fs.GetObject("bucket", key, 0)
c.Assert(err, check.IsNil)
io.Copy(&byteBuffer, r)
c.Assert(byteBuffer.Bytes(), check.DeepEquals, value)
metadata, err := fs.GetObjectInfo("bucket", key)
c.Assert(err, check.IsNil)
c.Assert(metadata.Size, check.Equals, int64(len(value)))
r.Close()
}
}
func testPaging(c *check.C, create func() ObjectAPI) {
fs := create()
fs.MakeBucket("bucket")
result, err := fs.ListObjects("bucket", "", "", "", 0)
c.Assert(err, check.IsNil)
c.Assert(len(result.Objects), check.Equals, 0)
c.Assert(result.IsTruncated, check.Equals, false)
// check before paging occurs
for i := 0; i < 5; i++ {
key := "obj" + strconv.Itoa(i)
_, err = fs.PutObject("bucket", key, int64(len(key)), bytes.NewBufferString(key), nil)
c.Assert(err, check.IsNil)
result, err = fs.ListObjects("bucket", "", "", "", 5)
c.Assert(err, check.IsNil)
c.Assert(len(result.Objects), check.Equals, i+1)
c.Assert(result.IsTruncated, check.Equals, false)
}
// check after paging occurs pages work
for i := 6; i <= 10; i++ {
key := "obj" + strconv.Itoa(i)
_, err = fs.PutObject("bucket", key, int64(len(key)), bytes.NewBufferString(key), nil)
c.Assert(err, check.IsNil)
result, err = fs.ListObjects("bucket", "obj", "", "", 5)
c.Assert(err, check.IsNil)
c.Assert(len(result.Objects), check.Equals, 5)
c.Assert(result.IsTruncated, check.Equals, true)
}
// check paging with prefix at end returns less objects
{
_, err = fs.PutObject("bucket", "newPrefix", int64(len("prefix1")), bytes.NewBufferString("prefix1"), nil)
c.Assert(err, check.IsNil)
_, err = fs.PutObject("bucket", "newPrefix2", int64(len("prefix2")), bytes.NewBufferString("prefix2"), nil)
c.Assert(err, check.IsNil)
result, err = fs.ListObjects("bucket", "new", "", "", 5)
c.Assert(err, check.IsNil)
c.Assert(len(result.Objects), check.Equals, 2)
}
// check ordering of pages
{
result, err = fs.ListObjects("bucket", "", "", "", 1000)
c.Assert(err, check.IsNil)
c.Assert(result.Objects[0].Name, check.Equals, "newPrefix")
c.Assert(result.Objects[1].Name, check.Equals, "newPrefix2")
c.Assert(result.Objects[2].Name, check.Equals, "obj0")
c.Assert(result.Objects[3].Name, check.Equals, "obj1")
c.Assert(result.Objects[4].Name, check.Equals, "obj10")
}
// check delimited results with delimiter and prefix
{
_, err = fs.PutObject("bucket", "this/is/delimited", int64(len("prefix1")), bytes.NewBufferString("prefix1"), nil)
c.Assert(err, check.IsNil)
_, err = fs.PutObject("bucket", "this/is/also/a/delimited/file", int64(len("prefix2")), bytes.NewBufferString("prefix2"), nil)
c.Assert(err, check.IsNil)
result, err = fs.ListObjects("bucket", "this/is/", "", "/", 10)
c.Assert(err, check.IsNil)
c.Assert(len(result.Objects), check.Equals, 1)
c.Assert(result.Prefixes[0], check.Equals, "this/is/also/")
}
// check delimited results with delimiter without prefix
{
result, err = fs.ListObjects("bucket", "", "", "/", 1000)
c.Assert(err, check.IsNil)
c.Assert(result.Objects[0].Name, check.Equals, "newPrefix")
c.Assert(result.Objects[1].Name, check.Equals, "newPrefix2")
c.Assert(result.Objects[2].Name, check.Equals, "obj0")
c.Assert(result.Objects[3].Name, check.Equals, "obj1")
c.Assert(result.Objects[4].Name, check.Equals, "obj10")
c.Assert(result.Prefixes[0], check.Equals, "this/")
}
// check results with Marker
{
result, err = fs.ListObjects("bucket", "", "newPrefix", "", 3)
c.Assert(err, check.IsNil)
c.Assert(result.Objects[0].Name, check.Equals, "newPrefix2")
c.Assert(result.Objects[1].Name, check.Equals, "obj0")
c.Assert(result.Objects[2].Name, check.Equals, "obj1")
}
// check ordering of results with prefix
{
result, err = fs.ListObjects("bucket", "obj", "", "", 1000)
c.Assert(err, check.IsNil)
c.Assert(result.Objects[0].Name, check.Equals, "obj0")
c.Assert(result.Objects[1].Name, check.Equals, "obj1")
c.Assert(result.Objects[2].Name, check.Equals, "obj10")
c.Assert(result.Objects[3].Name, check.Equals, "obj2")
c.Assert(result.Objects[4].Name, check.Equals, "obj3")
}
// check ordering of results with prefix and no paging
{
result, err = fs.ListObjects("bucket", "new", "", "", 5)
c.Assert(err, check.IsNil)
c.Assert(result.Objects[0].Name, check.Equals, "newPrefix")
c.Assert(result.Objects[1].Name, check.Equals, "newPrefix2")
}
}
func testObjectOverwriteWorks(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
_, err = fs.PutObject("bucket", "object", int64(len("one")), bytes.NewBufferString("one"), nil)
c.Assert(err, check.IsNil)
// c.Assert(md5Sum1hex, check.Equals, objectInfo.MD5Sum)
_, err = fs.PutObject("bucket", "object", int64(len("three")), bytes.NewBufferString("three"), nil)
c.Assert(err, check.IsNil)
var bytesBuffer bytes.Buffer
r, err := fs.GetObject("bucket", "object", 0)
c.Assert(err, check.IsNil)
io.Copy(&bytesBuffer, r)
c.Assert(string(bytesBuffer.Bytes()), check.Equals, "three")
r.Close()
}
func testNonExistantBucketOperations(c *check.C, create func() ObjectAPI) {
fs := create()
_, err := fs.PutObject("bucket", "object", int64(len("one")), bytes.NewBufferString("one"), nil)
c.Assert(err, check.Not(check.IsNil))
}
func testBucketRecreateFails(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("string")
c.Assert(err, check.IsNil)
err = fs.MakeBucket("string")
c.Assert(err, check.Not(check.IsNil))
}
func testPutObjectInSubdir(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
_, err = fs.PutObject("bucket", "dir1/dir2/object", int64(len("hello world")), bytes.NewBufferString("hello world"), nil)
c.Assert(err, check.IsNil)
var bytesBuffer bytes.Buffer
r, err := fs.GetObject("bucket", "dir1/dir2/object", 0)
c.Assert(err, check.IsNil)
io.Copy(&bytesBuffer, r)
c.Assert(len(bytesBuffer.Bytes()), check.Equals, len("hello world"))
r.Close()
}
func testListBuckets(c *check.C, create func() ObjectAPI) {
fs := create()
// test empty list
buckets, err := fs.ListBuckets()
c.Assert(err, check.IsNil)
c.Assert(len(buckets), check.Equals, 0)
// add one and test exists
err = fs.MakeBucket("bucket1")
c.Assert(err, check.IsNil)
buckets, err = fs.ListBuckets()
c.Assert(len(buckets), check.Equals, 1)
c.Assert(err, check.IsNil)
// add two and test exists
err = fs.MakeBucket("bucket2")
c.Assert(err, check.IsNil)
buckets, err = fs.ListBuckets()
c.Assert(len(buckets), check.Equals, 2)
c.Assert(err, check.IsNil)
// add three and test exists + prefix
err = fs.MakeBucket("bucket22")
buckets, err = fs.ListBuckets()
c.Assert(len(buckets), check.Equals, 3)
c.Assert(err, check.IsNil)
}
func testListBucketsOrder(c *check.C, create func() ObjectAPI) {
// if implementation contains a map, order of map keys will vary.
// this ensures they return in the same order each time
for i := 0; i < 10; i++ {
fs := create()
// add one and test exists
err := fs.MakeBucket("bucket1")
c.Assert(err, check.IsNil)
err = fs.MakeBucket("bucket2")
c.Assert(err, check.IsNil)
buckets, err := fs.ListBuckets()
c.Assert(err, check.IsNil)
c.Assert(len(buckets), check.Equals, 2)
c.Assert(buckets[0].Name, check.Equals, "bucket1")
c.Assert(buckets[1].Name, check.Equals, "bucket2")
}
}
func testListObjectsTestsForNonExistantBucket(c *check.C, create func() ObjectAPI) {
fs := create()
result, err := fs.ListObjects("bucket", "", "", "", 1000)
c.Assert(err, check.Not(check.IsNil))
c.Assert(result.IsTruncated, check.Equals, false)
c.Assert(len(result.Objects), check.Equals, 0)
}
func testNonExistantObjectInBucket(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
_, err = fs.GetObject("bucket", "dir1", 0)
c.Assert(err, check.Not(check.IsNil))
switch err := err.ToGoError().(type) {
case ObjectNotFound:
c.Assert(err, check.ErrorMatches, "Object not found: bucket#dir1")
default:
c.Assert(err, check.Equals, "fails")
}
}
func testGetDirectoryReturnsObjectNotFound(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
_, err = fs.PutObject("bucket", "dir1/dir2/object", int64(len("hello world")), bytes.NewBufferString("hello world"), nil)
c.Assert(err, check.IsNil)
_, err = fs.GetObject("bucket", "dir1", 0)
switch err := err.ToGoError().(type) {
case ObjectNotFound:
c.Assert(err.Bucket, check.Equals, "bucket")
c.Assert(err.Object, check.Equals, "dir1")
default:
// force a failure with a line number
c.Assert(err, check.Equals, "ObjectNotFound")
}
_, err = fs.GetObject("bucket", "dir1/", 0)
switch err := err.ToGoError().(type) {
case ObjectNotFound:
c.Assert(err.Bucket, check.Equals, "bucket")
c.Assert(err.Object, check.Equals, "dir1/")
default:
// force a failure with a line number
c.Assert(err, check.Equals, "ObjectNotFound")
}
}
func testDefaultContentType(c *check.C, create func() ObjectAPI) {
fs := create()
err := fs.MakeBucket("bucket")
c.Assert(err, check.IsNil)
// Test empty
_, err = fs.PutObject("bucket", "one", int64(len("one")), bytes.NewBufferString("one"), nil)
objInfo, err := fs.GetObjectInfo("bucket", "one")
c.Assert(err, check.IsNil)
c.Assert(objInfo.ContentType, check.Equals, "application/octet-stream")
}
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