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package packfile
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"gopkg.in/src-d/go-git.v4/core"
. "gopkg.in/check.v1"
)
type ReadRecallerImplSuite struct{}
var _ = Suite(&ReadRecallerImplSuite{})
type implFn func([]byte) ReadRecaller
func newStream(data []byte) ReadRecaller {
buf := bytes.NewBuffer(data)
return NewStream(buf)
}
func newSeekable(data []byte) ReadRecaller {
buf := bytes.NewReader(data)
return NewSeekable(buf)
}
func (s *ReadRecallerImplSuite) TestRead(c *C) {
for _, impl := range []struct {
id string
newFn implFn
}{
{id: "stream", newFn: newStream},
{id: "seekable", newFn: newSeekable},
} {
com := Commentf("implementation %s", impl.id)
data := []byte{0, 1, 2, 3, 4, 5, 7, 8, 9, 10}
sr := impl.newFn(data)
all := make([]byte, 0, len(data))
for len(all) < len(data) {
tmp := make([]byte, 3)
nr, err := sr.Read(tmp)
c.Assert(err, IsNil, com)
all = append(all, tmp[:nr]...)
}
c.Assert(data, DeepEquals, all, com)
}
}
func (s *ReadRecallerImplSuite) TestReadbyte(c *C) {
for _, impl := range []struct {
id string
newFn implFn
}{
{id: "stream", newFn: newStream},
{id: "seekable", newFn: newSeekable},
} {
com := Commentf("implementation %s", impl.id)
data := []byte{0, 1, 2, 3, 4, 5, 7, 8, 9, 10}
sr := impl.newFn(data)
all := make([]byte, 0, len(data))
for len(all) < len(data) {
b, err := sr.ReadByte()
c.Assert(err, IsNil, com)
all = append(all, b)
}
c.Assert(data, DeepEquals, all, com)
}
}
func (s *ReadRecallerImplSuite) TestOffsetWithRead(c *C) {
for _, impl := range []struct {
id string
newFn implFn
}{
{id: "stream", newFn: newStream},
{id: "seekable", newFn: newSeekable},
} {
com := Commentf("implementation %s", impl.id)
data := []byte{0, 1, 2, 3, 4, 5, 7, 8, 9, 10}
sr := impl.newFn(data)
all := make([]byte, 0, len(data))
for len(all) < len(data) {
tmp := make([]byte, 3)
nr, err := sr.Read(tmp)
c.Assert(err, IsNil, com)
all = append(all, tmp[:nr]...)
off, err := sr.Offset()
c.Assert(err, IsNil, com)
c.Assert(off, Equals, int64(len(all)), com)
}
}
}
func (s *ReadRecallerImplSuite) TestOffsetWithReadByte(c *C) {
for _, impl := range []struct {
id string
newFn implFn
}{
{id: "stream", newFn: newStream},
{id: "seekable", newFn: newSeekable},
} {
com := Commentf("implementation %s", impl.id)
data := []byte{0, 1, 2, 3, 4, 5, 7, 8, 9, 10}
sr := impl.newFn(data)
all := make([]byte, 0, len(data))
for len(all) < len(data) {
b, err := sr.ReadByte()
c.Assert(err, IsNil, com)
all = append(all, b)
off, err := sr.Offset()
c.Assert(err, IsNil, com)
c.Assert(off, Equals, int64(len(all)), com)
}
}
}
func (s *ReadRecallerImplSuite) TestRememberRecall(c *C) {
packfile := "fixtures/spinnaker-spinnaker.pack"
f, err := os.Open(packfile)
c.Assert(err, IsNil)
defer func() {
err = f.Close()
c.Assert(err, IsNil)
}()
data, err := ioutil.ReadAll(f)
c.Assert(err, IsNil)
for _, impl := range []struct {
id string
newFn implFn
}{
{id: "stream", newFn: newStream},
{id: "seekable", newFn: newSeekable},
} {
sr := impl.newFn(data)
for i, test := range [...]struct {
off int64
obj core.Object
err string // error regexp
ignore string // ignore this test for this implementation
}{
{
off: 12,
obj: newObject(core.CommitObject, []byte("tree 44a1cdf21c791867c51caad8f1b77e6baee6f462\nparent 87fe6e7c6b1b89519fe3a03a8961c5aa14d4cc68\nparent 9244ee648182b91a63d8cc4cbe4b9ac2a27c0492\nauthor Matt Duftler <duftler@google.com> 1448290941 -0500\ncommitter Matt Duftler <duftler@google.com> 1448290941 -0500\n\nMerge pull request #615 from ewiseblatt/create_dev\n\nPreserve original credentials of spinnaker-local.yml when transforming it.")),
}, {
off: 3037,
obj: newObject(core.TagObject, []byte("object e0005f50e22140def60260960b21667f1fdfff80\ntype commit\ntag v0.10.0\ntagger cfieber <cfieber@netflix.com> 1447687536 -0800\n\nRelease of 0.10.0\n\n- e0005f50e22140def60260960b21667f1fdfff80: Merge pull request #553 from ewiseblatt/rendezvous\n- e1a2b26b784179e6903a7ae967c037c721899eba: Wait for cassandra before starting spinnaker\n- c756e09461d071e98b8660818cf42d90c90f2854: Merge pull request #552 from duftler/google-c2d-tweaks\n- 0777fadf4ca6f458d7071de414f9bd5417911037: Fix incorrect config prop names: s/SPINNAKER_GOOGLE_PROJECT_DEFAULT_REGION/SPINNAKER_GOOGLE_DEFAULT_REGION s/SPINNAKER_GOOGLE_PROJECT_DEFAULT_ZONE/SPINNAKER_GOOGLE_DEFAULT_ZONE Hardcode profile name in generated ~/.aws/credentials to [default]. Restart all of spinnaker after updating cassandra and reconfiguring spinnaker, instead of just restarting clouddriver.\n- d8d031c1ac45801074418c43424a6f2c0dff642c: Merge pull request #551 from kenzanmedia/fixGroup\n- 626d23075f9e92aad19015f2964c95d45f41fa3a: Put in correct block for public image. Delineate cloud provider.\n")),
}, {
off: 157625,
obj: newObject(core.BlobObject, []byte(".gradle\nbuild/\n*.iml\n.idea\n*.pyc\n*~\n#*\nconfig/spinnaker-local.yml\n.DS_Store\npacker/ami_table.md\npacker/ami_table.json\npacker/example_output.txt")),
}, {
off: 1234,
obj: newObject(core.BlobObject, []byte(".gradle\nbuild/\n*.iml\n.idea\n*.pyc\n*~\n#*\nconfig/spinnaker-local.yml\n.DS_Store\npacker/ami_table.md\npacker/ami_table.json\npacker/example_output.txt")),
err: "duplicated object: with hash .*",
}, {
off: 3037,
obj: newObject(core.BlobObject, []byte("")),
err: "duplicated object: with offset 3037",
ignore: "seekable",
// seekable can not check if the offset has already been added
// for performance reasons.
},
} {
if test.ignore == impl.id {
continue
}
com := Commentf("subtest %d) implementation %s", i, impl.id)
err := sr.Remember(test.off, test.obj)
if test.err != "" {
c.Assert(err, ErrorMatches, test.err, com)
continue
}
c.Assert(err, IsNil, com)
result, err := sr.RecallByHash(test.obj.Hash())
c.Assert(err, IsNil, com)
c.Assert(result.Hash(), Equals, test.obj.Hash())
c.Assert(result, DeepEquals, test.obj, com)
result, err = sr.RecallByOffset(test.off)
c.Assert(err, IsNil, com)
c.Assert(result.Hash(), Equals, test.obj.Hash())
c.Assert(result, DeepEquals, test.obj, com)
}
}
}
func (s *ReadRecallerImplSuite) TestRecallByHashErrors(c *C) {
for _, impl := range []struct {
id string
newFn implFn
}{
{id: "stream", newFn: newStream},
{id: "seekable", newFn: newSeekable},
} {
com := Commentf("implementation %s", impl.id)
sr := impl.newFn([]byte{})
obj := newObject(core.CommitObject, []byte{})
_, err := sr.RecallByHash(obj.Hash())
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
err = rememberSomeObjects(sr)
c.Assert(err, IsNil)
_, err = sr.RecallByHash(obj.Hash())
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
}
}
func (s *ReadRecallerImplSuite) TestRecallByOffsetErrors(c *C) {
for _, impl := range []struct {
id string
newFn implFn
}{
{id: "stream", newFn: newStream},
// seekalbe allways recall every object in the packfile
} {
com := Commentf("implementation %s", impl.id)
sr := impl.newFn([]byte{})
_, err := sr.RecallByOffset(15)
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
err = rememberSomeObjects(sr)
c.Assert(err, IsNil)
_, err = sr.RecallByOffset(15)
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
}
}
func rememberSomeObjects(sr ReadRecaller) error {
for i, init := range [...]struct {
off int64
obj core.Object
}{
{off: 0, obj: newObject(core.CommitObject, []byte{'a'})}, // 93114cce67ec23976d15199514399203f69cc676
{off: 10, obj: newObject(core.CommitObject, []byte{'b'})}, // 2bb767097e479f668f0ebdabe88df11337bd8f19
{off: 20, obj: newObject(core.CommitObject, []byte{'c'})}, // 2f8096005677370e6446541a50e074299d43d468
} {
err := sr.Remember(init.off, init.obj)
if err != nil {
return fmt.Errorf("cannot ask StreamReader to Remember item %d", i)
}
}
return nil
}
func (s *ReadRecallerImplSuite) TestForgetAll(c *C) {
for _, impl := range []struct {
id string
newFn implFn
}{
{id: "stream", newFn: newStream},
{id: "seekable", newFn: newSeekable},
} {
com := Commentf("implementation %s", impl.id)
sr := impl.newFn([]byte{})
err := rememberSomeObjects(sr)
c.Assert(err, IsNil)
sr.ForgetAll()
if impl.id != "seekable" { // for efficiency, seekable always finds objects by offset
_, err = sr.RecallByOffset(0)
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
_, err = sr.RecallByOffset(10)
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
_, err = sr.RecallByOffset(20)
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
}
_, err = sr.RecallByHash(core.NewHash("93114cce67ec23976d15199514399203f69cc676"))
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
_, err = sr.RecallByHash(core.NewHash("2bb767097e479f668f0ebdabe88df11337bd8f19"))
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
_, err = sr.RecallByHash(core.NewHash("2f8096005677370e6446541a50e074299d43d468"))
c.Assert(err, ErrorMatches, ErrCannotRecall.Error()+".*", com)
}
}
|
