registry/storagedriver/testsuites/testsuites.go
Brian Bland 68fd15b688 Miscellaneous storagedriver+ipc fixes
Fixes/tests listing for keys beginning with "/"
No longer extraneously wraps Closers in ioutil.NopClosers
Uses omitempty for all ipc struct type fields
2014-11-20 14:14:55 -08:00

410 lines
13 KiB
Go

package testsuites
import (
"bytes"
"io/ioutil"
"math/rand"
"path"
"sort"
"testing"
"github.com/docker/docker-registry/storagedriver"
"github.com/docker/docker-registry/storagedriver/ipc"
"gopkg.in/check.v1"
)
// Test hooks up gocheck into the "go test" runner.
func Test(t *testing.T) { check.TestingT(t) }
// RegisterInProcessSuite registers an in-process storage driver test suite with the go test runner
func RegisterInProcessSuite(driverConstructor DriverConstructor, skipCheck SkipCheck) {
check.Suite(&DriverSuite{
Constructor: driverConstructor,
SkipCheck: skipCheck,
})
}
// RegisterIPCSuite registers a storage driver test suite which runs the named driver as a child
// process with the given parameters
func RegisterIPCSuite(driverName string, ipcParams map[string]string, skipCheck SkipCheck) {
suite := &DriverSuite{
Constructor: func() (storagedriver.StorageDriver, error) {
d, err := ipc.NewDriverClient(driverName, ipcParams)
if err != nil {
return nil, err
}
err = d.Start()
if err != nil {
return nil, err
}
return d, nil
},
SkipCheck: skipCheck,
}
suite.Teardown = func() error {
if suite.StorageDriver == nil {
return nil
}
driverClient := suite.StorageDriver.(*ipc.StorageDriverClient)
return driverClient.Stop()
}
check.Suite(suite)
}
// SkipCheck is a function used to determine if a test suite should be skipped
// If a SkipCheck returns a non-empty skip reason, the suite is skipped with the given reason
type SkipCheck func() (reason string)
// NeverSkip is a default SkipCheck which never skips the suite
var NeverSkip SkipCheck = func() string { return "" }
// DriverConstructor is a function which returns a new storagedriver.StorageDriver
type DriverConstructor func() (storagedriver.StorageDriver, error)
// DriverTeardown is a function which cleans up a suite's storagedriver.StorageDriver
type DriverTeardown func() error
// DriverSuite is a gocheck test suite designed to test a storagedriver.StorageDriver
// The intended way to create a DriverSuite is with RegisterInProcessSuite or RegisterIPCSuite
type DriverSuite struct {
Constructor DriverConstructor
Teardown DriverTeardown
SkipCheck
storagedriver.StorageDriver
}
// SetUpSuite sets up the gocheck test suite
func (suite *DriverSuite) SetUpSuite(c *check.C) {
if reason := suite.SkipCheck(); reason != "" {
c.Skip(reason)
}
d, err := suite.Constructor()
c.Assert(err, check.IsNil)
suite.StorageDriver = d
}
// TearDownSuite tears down the gocheck test suite
func (suite *DriverSuite) TearDownSuite(c *check.C) {
if suite.Teardown != nil {
err := suite.Teardown()
c.Assert(err, check.IsNil)
}
}
// TestWriteRead1 tests a simple write-read workflow
func (suite *DriverSuite) TestWriteRead1(c *check.C) {
filename := randomString(32)
contents := []byte("a")
suite.writeReadCompare(c, filename, contents, contents)
}
// TestWriteRead2 tests a simple write-read workflow with unicode data
func (suite *DriverSuite) TestWriteRead2(c *check.C) {
filename := randomString(32)
contents := []byte("\xc3\x9f")
suite.writeReadCompare(c, filename, contents, contents)
}
// TestWriteRead3 tests a simple write-read workflow with a small string
func (suite *DriverSuite) TestWriteRead3(c *check.C) {
filename := randomString(32)
contents := []byte(randomString(32))
suite.writeReadCompare(c, filename, contents, contents)
}
// TestWriteRead4 tests a simple write-read workflow with 1MB of data
func (suite *DriverSuite) TestWriteRead4(c *check.C) {
filename := randomString(32)
contents := []byte(randomString(1024 * 1024))
suite.writeReadCompare(c, filename, contents, contents)
}
// TestReadNonexistent tests reading content from an empty path
func (suite *DriverSuite) TestReadNonexistent(c *check.C) {
filename := randomString(32)
_, err := suite.StorageDriver.GetContent(filename)
c.Assert(err, check.NotNil)
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
}
// TestWriteReadStreams1 tests a simple write-read streaming workflow
func (suite *DriverSuite) TestWriteReadStreams1(c *check.C) {
filename := randomString(32)
contents := []byte("a")
suite.writeReadCompareStreams(c, filename, contents, contents)
}
// TestWriteReadStreams2 tests a simple write-read streaming workflow with
// unicode data
func (suite *DriverSuite) TestWriteReadStreams2(c *check.C) {
filename := randomString(32)
contents := []byte("\xc3\x9f")
suite.writeReadCompareStreams(c, filename, contents, contents)
}
// TestWriteReadStreams3 tests a simple write-read streaming workflow with a
// small amount of data
func (suite *DriverSuite) TestWriteReadStreams3(c *check.C) {
filename := randomString(32)
contents := []byte(randomString(32))
suite.writeReadCompareStreams(c, filename, contents, contents)
}
// TestWriteReadStreams4 tests a simple write-read streaming workflow with 1MB
// of data
func (suite *DriverSuite) TestWriteReadStreams4(c *check.C) {
filename := randomString(32)
contents := []byte(randomString(1024 * 1024))
suite.writeReadCompareStreams(c, filename, contents, contents)
}
// TestContinueStreamAppend tests that a stream write can be appended to without
// corrupting the data
func (suite *DriverSuite) TestContinueStreamAppend(c *check.C) {
filename := randomString(32)
defer suite.StorageDriver.Delete(filename)
chunkSize := uint64(10 * 1024 * 1024)
contentsChunk1 := []byte(randomString(chunkSize))
contentsChunk2 := []byte(randomString(chunkSize))
contentsChunk3 := []byte(randomString(chunkSize))
fullContents := append(append(contentsChunk1, contentsChunk2...), contentsChunk3...)
err := suite.StorageDriver.WriteStream(filename, 0, 3*chunkSize, ioutil.NopCloser(bytes.NewReader(contentsChunk1)))
c.Assert(err, check.IsNil)
offset, err := suite.StorageDriver.CurrentSize(filename)
c.Assert(err, check.IsNil)
if offset > chunkSize {
c.Fatalf("Offset too large, %d > %d", offset, chunkSize)
}
err = suite.StorageDriver.WriteStream(filename, offset, 3*chunkSize, ioutil.NopCloser(bytes.NewReader(fullContents[offset:2*chunkSize])))
c.Assert(err, check.IsNil)
offset, err = suite.StorageDriver.CurrentSize(filename)
c.Assert(err, check.IsNil)
if offset > 2*chunkSize {
c.Fatalf("Offset too large, %d > %d", offset, 2*chunkSize)
}
err = suite.StorageDriver.WriteStream(filename, offset, 3*chunkSize, ioutil.NopCloser(bytes.NewReader(fullContents[offset:])))
c.Assert(err, check.IsNil)
received, err := suite.StorageDriver.GetContent(filename)
c.Assert(err, check.IsNil)
c.Assert(received, check.DeepEquals, fullContents)
}
// TestReadStreamWithOffset tests that the appropriate data is streamed when
// reading with a given offset
func (suite *DriverSuite) TestReadStreamWithOffset(c *check.C) {
filename := randomString(32)
defer suite.StorageDriver.Delete(filename)
chunkSize := uint64(32)
contentsChunk1 := []byte(randomString(chunkSize))
contentsChunk2 := []byte(randomString(chunkSize))
contentsChunk3 := []byte(randomString(chunkSize))
err := suite.StorageDriver.PutContent(filename, append(append(contentsChunk1, contentsChunk2...), contentsChunk3...))
c.Assert(err, check.IsNil)
reader, err := suite.StorageDriver.ReadStream(filename, 0)
c.Assert(err, check.IsNil)
defer reader.Close()
readContents, err := ioutil.ReadAll(reader)
c.Assert(err, check.IsNil)
c.Assert(readContents, check.DeepEquals, append(append(contentsChunk1, contentsChunk2...), contentsChunk3...))
reader, err = suite.StorageDriver.ReadStream(filename, chunkSize)
c.Assert(err, check.IsNil)
defer reader.Close()
readContents, err = ioutil.ReadAll(reader)
c.Assert(err, check.IsNil)
c.Assert(readContents, check.DeepEquals, append(contentsChunk2, contentsChunk3...))
reader, err = suite.StorageDriver.ReadStream(filename, chunkSize*2)
c.Assert(err, check.IsNil)
defer reader.Close()
readContents, err = ioutil.ReadAll(reader)
c.Assert(err, check.IsNil)
c.Assert(readContents, check.DeepEquals, contentsChunk3)
}
// TestReadNonexistentStream tests that reading a stream for a nonexistent path
// fails
func (suite *DriverSuite) TestReadNonexistentStream(c *check.C) {
filename := randomString(32)
_, err := suite.StorageDriver.ReadStream(filename, 0)
c.Assert(err, check.NotNil)
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
}
// TestList checks the returned list of keys after populating a directory tree
func (suite *DriverSuite) TestList(c *check.C) {
rootDirectory := "/" + randomString(uint64(8+rand.Intn(8)))
defer suite.StorageDriver.Delete(rootDirectory)
parentDirectory := rootDirectory + "/" + randomString(uint64(8+rand.Intn(8)))
childFiles := make([]string, 50)
for i := 0; i < len(childFiles); i++ {
childFile := parentDirectory + "/" + randomString(uint64(8+rand.Intn(8)))
childFiles[i] = childFile
err := suite.StorageDriver.PutContent(childFile, []byte(randomString(32)))
c.Assert(err, check.IsNil)
}
sort.Strings(childFiles)
keys, err := suite.StorageDriver.List("/")
c.Assert(err, check.IsNil)
c.Assert(keys, check.DeepEquals, []string{rootDirectory})
keys, err = suite.StorageDriver.List(rootDirectory)
c.Assert(err, check.IsNil)
c.Assert(keys, check.DeepEquals, []string{parentDirectory})
keys, err = suite.StorageDriver.List(parentDirectory)
c.Assert(err, check.IsNil)
sort.Strings(keys)
c.Assert(keys, check.DeepEquals, childFiles)
}
// TestMove checks that a moved object no longer exists at the source path and
// does exist at the destination
func (suite *DriverSuite) TestMove(c *check.C) {
contents := []byte(randomString(32))
sourcePath := randomString(32)
destPath := randomString(32)
defer suite.StorageDriver.Delete(sourcePath)
defer suite.StorageDriver.Delete(destPath)
err := suite.StorageDriver.PutContent(sourcePath, contents)
c.Assert(err, check.IsNil)
err = suite.StorageDriver.Move(sourcePath, destPath)
c.Assert(err, check.IsNil)
received, err := suite.StorageDriver.GetContent(destPath)
c.Assert(err, check.IsNil)
c.Assert(received, check.DeepEquals, contents)
_, err = suite.StorageDriver.GetContent(sourcePath)
c.Assert(err, check.NotNil)
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
}
// TestMoveNonexistent checks that moving a nonexistent key fails
func (suite *DriverSuite) TestMoveNonexistent(c *check.C) {
sourcePath := randomString(32)
destPath := randomString(32)
err := suite.StorageDriver.Move(sourcePath, destPath)
c.Assert(err, check.NotNil)
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
}
// TestDelete checks that the delete operation removes data from the storage
// driver
func (suite *DriverSuite) TestDelete(c *check.C) {
filename := randomString(32)
contents := []byte(randomString(32))
defer suite.StorageDriver.Delete(filename)
err := suite.StorageDriver.PutContent(filename, contents)
c.Assert(err, check.IsNil)
err = suite.StorageDriver.Delete(filename)
c.Assert(err, check.IsNil)
_, err = suite.StorageDriver.GetContent(filename)
c.Assert(err, check.NotNil)
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
}
// TestDeleteNonexistent checks that removing a nonexistent key fails
func (suite *DriverSuite) TestDeleteNonexistent(c *check.C) {
filename := randomString(32)
err := suite.StorageDriver.Delete(filename)
c.Assert(err, check.NotNil)
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
}
// TestDeleteFolder checks that deleting a folder removes all child elements
func (suite *DriverSuite) TestDeleteFolder(c *check.C) {
dirname := randomString(32)
filename1 := randomString(32)
filename2 := randomString(32)
contents := []byte(randomString(32))
defer suite.StorageDriver.Delete(path.Join(dirname, filename1))
defer suite.StorageDriver.Delete(path.Join(dirname, filename2))
err := suite.StorageDriver.PutContent(path.Join(dirname, filename1), contents)
c.Assert(err, check.IsNil)
err = suite.StorageDriver.PutContent(path.Join(dirname, filename2), contents)
c.Assert(err, check.IsNil)
err = suite.StorageDriver.Delete(dirname)
c.Assert(err, check.IsNil)
_, err = suite.StorageDriver.GetContent(path.Join(dirname, filename1))
c.Assert(err, check.NotNil)
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
_, err = suite.StorageDriver.GetContent(path.Join(dirname, filename2))
c.Assert(err, check.NotNil)
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
}
func (suite *DriverSuite) writeReadCompare(c *check.C, filename string, contents, expected []byte) {
defer suite.StorageDriver.Delete(filename)
err := suite.StorageDriver.PutContent(filename, contents)
c.Assert(err, check.IsNil)
readContents, err := suite.StorageDriver.GetContent(filename)
c.Assert(err, check.IsNil)
c.Assert(readContents, check.DeepEquals, contents)
}
func (suite *DriverSuite) writeReadCompareStreams(c *check.C, filename string, contents, expected []byte) {
defer suite.StorageDriver.Delete(filename)
err := suite.StorageDriver.WriteStream(filename, 0, uint64(len(contents)), ioutil.NopCloser(bytes.NewReader(contents)))
c.Assert(err, check.IsNil)
reader, err := suite.StorageDriver.ReadStream(filename, 0)
c.Assert(err, check.IsNil)
defer reader.Close()
readContents, err := ioutil.ReadAll(reader)
c.Assert(err, check.IsNil)
c.Assert(readContents, check.DeepEquals, contents)
}
var pathChars = []byte("abcdefghijklmnopqrstuvwxyz")
func randomString(length uint64) string {
b := make([]byte, length)
for i := range b {
b[i] = pathChars[rand.Intn(len(pathChars))]
}
return string(b)
}