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minio/pkg/storage/storage_api_suite.go

224 lines
6.8 KiB

package storage
import (
"bytes"
"log"
"math/rand"
"strconv"
. "gopkg.in/check.v1"
)
func APITestSuite(c *C, create func() Storage) {
testCreateBucket(c, create)
testMultipleObjectCreation(c, create)
testPaging(c, create)
testObjectOverwriteFails(c, create)
testNonExistantBucketOperations(c, create)
testBucketRecreateFails(c, create)
testPutObjectInSubdir(c, create)
testListBuckets(c, create)
testListBucketsOrder(c, create)
testListObjectsTestsForNonExistantBucket(c, create)
}
func testCreateBucket(c *C, create func() Storage) {
// TODO
}
func testMultipleObjectCreation(c *C, create func() Storage) {
objects := make(map[string][]byte)
storage := create()
err := storage.StoreBucket("bucket")
c.Assert(err, IsNil)
for i := 0; i < 10; i++ {
randomPerm := rand.Perm(10)
randomString := ""
for _, num := range randomPerm {
randomString = randomString + strconv.Itoa(num)
}
key := "obj" + strconv.Itoa(i)
objects[key] = []byte(randomString)
err := storage.StoreObject("bucket", key, bytes.NewBufferString(randomString))
c.Assert(err, IsNil)
}
// ensure no duplicate etags
etags := make(map[string]string)
for key, value := range objects {
var byteBuffer bytes.Buffer
storage.CopyObjectToWriter(&byteBuffer, "bucket", key)
c.Assert(bytes.Equal(value, byteBuffer.Bytes()), Equals, true)
metadata, err := storage.GetObjectMetadata("bucket", key)
c.Assert(err, IsNil)
c.Assert(metadata.Size, Equals, int64(len(value)))
_, ok := etags[metadata.ETag]
c.Assert(ok, Equals, false)
etags[metadata.ETag] = metadata.ETag
}
}
func testPaging(c *C, create func() Storage) {
storage := create()
storage.StoreBucket("bucket")
storage.ListObjects("bucket", "", 5)
objects, isTruncated, err := storage.ListObjects("bucket", "", 5)
c.Assert(len(objects), Equals, 0)
c.Assert(isTruncated, Equals, false)
c.Assert(err, IsNil)
// check before paging occurs
for i := 0; i < 5; i++ {
key := "obj" + strconv.Itoa(i)
storage.StoreObject("bucket", key, bytes.NewBufferString(key))
objects, isTruncated, err = storage.ListObjects("bucket", "", 5)
c.Assert(len(objects), Equals, i+1)
c.Assert(isTruncated, Equals, false)
c.Assert(err, IsNil)
}
// check after paging occurs pages work
for i := 6; i <= 10; i++ {
key := "obj" + strconv.Itoa(i)
storage.StoreObject("bucket", key, bytes.NewBufferString(key))
objects, isTruncated, err = storage.ListObjects("bucket", "", 5)
c.Assert(len(objects), Equals, 5)
c.Assert(isTruncated, Equals, true)
c.Assert(err, IsNil)
}
// check paging with prefix at end returns less objects
{
storage.StoreObject("bucket", "newPrefix", bytes.NewBufferString("prefix1"))
storage.StoreObject("bucket", "newPrefix2", bytes.NewBufferString("prefix2"))
objects, isTruncated, err = storage.ListObjects("bucket", "new", 5)
c.Assert(len(objects), Equals, 2)
}
// check ordering of pages
{
objects, isTruncated, err = storage.ListObjects("bucket", "", 5)
c.Assert(objects[0].Key, Equals, "newPrefix")
c.Assert(objects[1].Key, Equals, "newPrefix2")
c.Assert(objects[2].Key, Equals, "obj0")
c.Assert(objects[3].Key, Equals, "obj1")
c.Assert(objects[4].Key, Equals, "obj10")
}
// check ordering of results with prefix
{
objects, isTruncated, err = storage.ListObjects("bucket", "obj", 5)
c.Assert(objects[0].Key, Equals, "obj0")
c.Assert(objects[1].Key, Equals, "obj1")
c.Assert(objects[2].Key, Equals, "obj10")
c.Assert(objects[3].Key, Equals, "obj2")
c.Assert(objects[4].Key, Equals, "obj3")
}
// check ordering of results with prefix and no paging
{
objects, isTruncated, err = storage.ListObjects("bucket", "new", 5)
c.Assert(objects[0].Key, Equals, "newPrefix")
c.Assert(objects[1].Key, Equals, "newPrefix2")
}
}
func testObjectOverwriteFails(c *C, create func() Storage) {
storage := create()
storage.StoreBucket("bucket")
err := storage.StoreObject("bucket", "object", bytes.NewBufferString("one"))
c.Assert(err, IsNil)
err = storage.StoreObject("bucket", "object", bytes.NewBufferString("three"))
c.Assert(err, Not(IsNil))
var bytesBuffer bytes.Buffer
length, err := storage.CopyObjectToWriter(&bytesBuffer, "bucket", "object")
c.Assert(length, Equals, int64(len("one")))
c.Assert(err, IsNil)
c.Assert(string(bytesBuffer.Bytes()), Equals, "one")
}
func testNonExistantBucketOperations(c *C, create func() Storage) {
storage := create()
err := storage.StoreObject("bucket", "object", bytes.NewBufferString("one"))
c.Assert(err, Not(IsNil))
}
func testBucketRecreateFails(c *C, create func() Storage) {
storage := create()
err := storage.StoreBucket("string")
c.Assert(err, IsNil)
err = storage.StoreBucket("string")
c.Assert(err, Not(IsNil))
}
func testPutObjectInSubdir(c *C, create func() Storage) {
storage := create()
err := storage.StoreBucket("bucket")
c.Assert(err, IsNil)
err = storage.StoreObject("bucket", "dir1/dir2/object", bytes.NewBufferString("hello world"))
c.Assert(err, IsNil)
var bytesBuffer bytes.Buffer
length, err := storage.CopyObjectToWriter(&bytesBuffer, "bucket", "dir1/dir2/object")
c.Assert(len(bytesBuffer.Bytes()), Equals, len("hello world"))
c.Assert(int64(len(bytesBuffer.Bytes())), Equals, length)
c.Assert(err, IsNil)
}
func testListBuckets(c *C, create func() Storage) {
storage := create()
// test empty list
buckets, err := storage.ListBuckets("")
c.Assert(len(buckets), Equals, 0)
c.Assert(err, IsNil)
// add one and test exists
err = storage.StoreBucket("bucket1")
c.Assert(err, IsNil)
buckets, err = storage.ListBuckets("")
c.Assert(len(buckets), Equals, 1)
c.Assert(err, IsNil)
// add two and test exists
err = storage.StoreBucket("bucket2")
c.Assert(err, IsNil)
buckets, err = storage.ListBuckets("")
c.Assert(len(buckets), Equals, 2)
c.Assert(err, IsNil)
// add three and test exists + prefix
err = storage.StoreBucket("bucket22")
buckets, err = storage.ListBuckets("")
c.Assert(len(buckets), Equals, 3)
c.Assert(err, IsNil)
buckets, err = storage.ListBuckets("bucket2")
c.Assert(len(buckets), Equals, 2)
c.Assert(err, IsNil)
}
func testListBucketsOrder(c *C, create func() Storage) {
// 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++ {
storage := create()
// add one and test exists
storage.StoreBucket("bucket1")
storage.StoreBucket("bucket2")
buckets, err := storage.ListBuckets("bucket")
c.Assert(len(buckets), Equals, 2)
c.Assert(err, IsNil)
c.Assert(buckets[0].Name, Equals, "bucket1")
c.Assert(buckets[1].Name, Equals, "bucket2")
}
}
func testListObjectsTestsForNonExistantBucket(c *C, create func() Storage) {
storage := create()
objects, isTruncated, err := storage.ListObjects("bucket", "", 1000)
log.Println("EH:", err)
c.Assert(err, Not(IsNil))
c.Assert(isTruncated, Equals, false)
c.Assert(len(objects), Equals, 0)
}