forked from juju/blobstore
/
resourcecatalog_test.go
275 lines (245 loc) · 8.18 KB
/
resourcecatalog_test.go
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// Copyright 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package blobstore_test
import (
"github.com/juju/testing"
jc "github.com/juju/testing/checkers"
"github.com/juju/txn"
txntesting "github.com/juju/txn/testing"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
gc "launchpad.net/gocheck"
"github.com/juju/blobstore"
)
var _ = gc.Suite(&resourceCatalogSuite{})
type resourceCatalogSuite struct {
testing.IsolationSuite
testing.MgoSuite
txnRunner txn.Runner
rCatalog blobstore.ResourceCatalog
collection *mgo.Collection
}
func (s *resourceCatalogSuite) SetUpSuite(c *gc.C) {
s.IsolationSuite.SetUpSuite(c)
s.MgoSuite.SetUpSuite(c)
}
func (s *resourceCatalogSuite) TearDownSuite(c *gc.C) {
s.MgoSuite.TearDownSuite(c)
s.IsolationSuite.TearDownSuite(c)
}
func (s *resourceCatalogSuite) SetUpTest(c *gc.C) {
s.IsolationSuite.SetUpTest(c)
s.MgoSuite.SetUpTest(c)
db := s.Session.DB("blobstore")
s.collection = db.C("storedResources")
s.rCatalog = blobstore.NewResourceCatalog(db)
// For testing, we need to ensure there's a single txnRunner for all operations.
s.txnRunner = txn.NewRunner(txn.RunnerParams{Database: db})
txnRunnerFunc := func(db *mgo.Database) txn.Runner {
return s.txnRunner
}
s.PatchValue(blobstore.TxnRunner, txnRunnerFunc)
}
func (s *resourceCatalogSuite) TearDownTest(c *gc.C) {
s.MgoSuite.TearDownTest(c)
s.IsolationSuite.TearDownTest(c)
}
func (s *resourceCatalogSuite) assertPut(c *gc.C, expectedNew bool, md5hash, sha256hash string) (
id, path string,
) {
rh := &blobstore.ResourceHash{md5hash, sha256hash}
id, path, isNew, err := s.rCatalog.Put(rh, 200)
c.Assert(err, gc.IsNil)
c.Assert(isNew, gc.Equals, expectedNew)
c.Assert(id, gc.Not(gc.Equals), "")
c.Assert(path, gc.Not(gc.Equals), "")
s.assertGetPending(c, id)
return id, path
}
func (s *resourceCatalogSuite) assertGetPending(c *gc.C, id string) {
r, err := s.rCatalog.Get(id)
c.Assert(err, gc.Equals, blobstore.ErrUploadPending)
c.Assert(r, gc.IsNil)
}
func (s *resourceCatalogSuite) asserGetUploaded(c *gc.C, id string, hash *blobstore.ResourceHash, length int64) {
r, err := s.rCatalog.Get(id)
c.Assert(err, gc.IsNil)
c.Assert(r.ResourceHash, gc.DeepEquals, *hash)
c.Assert(r.Length, gc.Equals, length)
c.Assert(r.Path, gc.Not(gc.Equals), "")
}
type resourceDoc struct {
Id bson.ObjectId `bson:"_id"`
RefCount int64
}
func (s *resourceCatalogSuite) assertRefCount(c *gc.C, id string, expected int64) {
var doc resourceDoc
err := s.collection.FindId(id).One(&doc)
c.Assert(err, gc.IsNil)
c.Assert(doc.RefCount, gc.Equals, expected)
}
func (s *resourceCatalogSuite) TestPut(c *gc.C) {
id, _ := s.assertPut(c, true, "md5foo", "sha256foo")
s.assertRefCount(c, id, 1)
}
func (s *resourceCatalogSuite) TestPutLengthMismatch(c *gc.C) {
id, _ := s.assertPut(c, true, "md5foo", "sha256foo")
rh := &blobstore.ResourceHash{"md5foo", "sha256foo"}
_, _, _, err := s.rCatalog.Put(rh, 100)
c.Assert(err, gc.ErrorMatches, "length mismatch in resource document 200 != 100")
s.assertRefCount(c, id, 1)
}
func (s *resourceCatalogSuite) TestPutSameHashesIncRefCount(c *gc.C) {
id, _ := s.assertPut(c, true, "md5foo", "sha256foo")
s.assertPut(c, false, "md5foo", "sha256foo")
s.assertRefCount(c, id, 2)
}
func (s *resourceCatalogSuite) TestGetNonExistent(c *gc.C) {
_, err := s.rCatalog.Get(bson.NewObjectId().Hex())
c.Assert(err, gc.ErrorMatches, `resource with id ".*" not found`)
}
func (s *resourceCatalogSuite) TestGet(c *gc.C) {
rh := &blobstore.ResourceHash{
MD5Hash: "md5foo",
SHA256Hash: "sha256foo",
}
id, path, isNew, err := s.rCatalog.Put(rh, 100)
c.Assert(err, gc.IsNil)
c.Assert(isNew, jc.IsTrue)
c.Assert(path, gc.Not(gc.Equals), "")
s.assertGetPending(c, id)
}
func (s *resourceCatalogSuite) TestFindNonExistent(c *gc.C) {
rh := &blobstore.ResourceHash{
MD5Hash: "md5foo",
SHA256Hash: "sha256foo",
}
_, err := s.rCatalog.Find(rh)
c.Assert(err, gc.ErrorMatches, `resource with md5=.*, sha256=.* not found`)
}
func (s *resourceCatalogSuite) TestFind(c *gc.C) {
rh := &blobstore.ResourceHash{
MD5Hash: "md5foo",
SHA256Hash: "sha256foo",
}
id, path, isNew, err := s.rCatalog.Put(rh, 100)
c.Assert(err, gc.IsNil)
c.Assert(isNew, jc.IsTrue)
c.Assert(path, gc.Not(gc.Equals), "")
s.rCatalog.UploadComplete(id)
c.Assert(err, gc.IsNil)
foundId, err := s.rCatalog.Find(rh)
c.Assert(err, gc.IsNil)
c.Assert(foundId, gc.Equals, id)
}
func (s *resourceCatalogSuite) TestUploadComplete(c *gc.C) {
rh := &blobstore.ResourceHash{
MD5Hash: "md5foo",
SHA256Hash: "sha256foo",
}
id, _, _, err := s.rCatalog.Put(rh, 100)
c.Assert(err, gc.IsNil)
s.assertGetPending(c, id)
s.rCatalog.UploadComplete(id)
c.Assert(err, gc.IsNil)
s.asserGetUploaded(c, id, rh, 100)
// A second call works just fine.
s.rCatalog.UploadComplete(id)
c.Assert(err, gc.IsNil)
s.asserGetUploaded(c, id, rh, 100)
}
func (s *resourceCatalogSuite) TestRemoveOnlyRecord(c *gc.C) {
id, path := s.assertPut(c, true, "md5foo", "sha256foo")
wasDeleted, removedPath, err := s.rCatalog.Remove(id)
c.Assert(err, gc.IsNil)
c.Assert(wasDeleted, jc.IsTrue)
c.Assert(removedPath, gc.Equals, path)
_, err = s.rCatalog.Get(id)
c.Assert(err, gc.ErrorMatches, `resource with id ".*" not found`)
}
func (s *resourceCatalogSuite) TestRemoveDecRefCount(c *gc.C) {
id, _ := s.assertPut(c, true, "md5foo", "sha256foo")
s.assertPut(c, false, "md5foo", "sha256foo")
s.assertRefCount(c, id, 2)
wasDeleted, _, err := s.rCatalog.Remove(id)
c.Assert(err, gc.IsNil)
c.Assert(wasDeleted, jc.IsFalse)
s.assertRefCount(c, id, 1)
s.assertGetPending(c, id)
}
func (s *resourceCatalogSuite) TestRemoveLastCopy(c *gc.C) {
id, _ := s.assertPut(c, true, "md5foo", "sha256foo")
s.assertPut(c, false, "md5foo", "sha256foo")
s.assertRefCount(c, id, 2)
_, _, err := s.rCatalog.Remove(id)
c.Assert(err, gc.IsNil)
s.assertRefCount(c, id, 1)
_, _, err = s.rCatalog.Remove(id)
c.Assert(err, gc.IsNil)
_, err = s.rCatalog.Get(id)
c.Assert(err, gc.ErrorMatches, `resource with id ".*" not found`)
}
func (s *resourceCatalogSuite) TestRemoveNonExistent(c *gc.C) {
_, _, err := s.rCatalog.Remove(bson.NewObjectId().Hex())
c.Assert(err, gc.ErrorMatches, `resource with id ".*" not found`)
}
func (s *resourceCatalogSuite) TestPutNewResourceRace(c *gc.C) {
var firstId string
beforeFuncs := []func(){
func() { firstId, _ = s.assertPut(c, true, "md5foo", "sha256foo") },
}
defer txntesting.SetBeforeHooks(c, s.txnRunner, beforeFuncs...).Check()
rh := &blobstore.ResourceHash{"md5foo", "sha256foo"}
id, _, isNew, err := s.rCatalog.Put(rh, 200)
c.Assert(err, gc.IsNil)
c.Assert(id, gc.Equals, firstId)
c.Assert(isNew, jc.IsFalse)
err = s.rCatalog.UploadComplete(id)
c.Assert(err, gc.IsNil)
r, err := s.rCatalog.Get(id)
c.Assert(err, gc.IsNil)
s.assertRefCount(c, id, 2)
c.Assert(r.MD5Hash, gc.Equals, "md5foo")
c.Assert(r.SHA256Hash, gc.Equals, "sha256foo")
c.Assert(int(r.Length), gc.Equals, 200)
}
func (s *resourceCatalogSuite) TestPutDeletedResourceRace(c *gc.C) {
firstId, _ := s.assertPut(c, true, "md5foo", "sha256foo")
err := s.rCatalog.UploadComplete(firstId)
c.Assert(err, gc.IsNil)
beforeFuncs := []func(){
func() {
_, _, err := s.rCatalog.Remove(firstId)
c.Assert(err, gc.IsNil)
},
}
defer txntesting.SetBeforeHooks(c, s.txnRunner, beforeFuncs...).Check()
rh := &blobstore.ResourceHash{"md5foo", "sha256foo"}
id, _, isNew, err := s.rCatalog.Put(rh, 200)
c.Assert(err, gc.IsNil)
c.Assert(isNew, jc.IsTrue)
c.Assert(firstId, gc.Equals, id)
err = s.rCatalog.UploadComplete(id)
c.Assert(err, gc.IsNil)
r, err := s.rCatalog.Get(id)
c.Assert(err, gc.IsNil)
s.assertRefCount(c, id, 1)
c.Assert(r.MD5Hash, gc.Equals, "md5foo")
c.Assert(r.SHA256Hash, gc.Equals, "sha256foo")
c.Assert(r.Length, gc.Equals, int64(200))
}
func (s *resourceCatalogSuite) TestDeleteResourceRace(c *gc.C) {
id, _ := s.assertPut(c, true, "md5foo", "sha256foo")
s.assertPut(c, false, "md5foo", "sha256foo")
beforeFuncs := []func(){
func() {
_, _, err := s.rCatalog.Remove(id)
c.Assert(err, gc.IsNil)
},
}
defer txntesting.SetBeforeHooks(c, s.txnRunner, beforeFuncs...).Check()
_, _, err := s.rCatalog.Remove(id)
c.Assert(err, gc.IsNil)
_, err = s.rCatalog.Get(id)
c.Assert(err, gc.ErrorMatches, `resource with id ".*" not found`)
}