8cb0e3398c
The packages causing build errors are being disabled for now to let us split up the work in the different driver implementations without blocking integration into the main branch. The s3 and azure implementations need some effort to add Stat support. The ipc package needs that work plus some care around hanging send calls.
616 lines
20 KiB
Go
616 lines
20 KiB
Go
package testsuites
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import (
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"bytes"
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"io"
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"io/ioutil"
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"math/rand"
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"os"
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"path"
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"sort"
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"sync"
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"testing"
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"time"
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"github.com/docker/docker-registry/storagedriver"
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"gopkg.in/check.v1"
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)
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// Test hooks up gocheck into the "go test" runner.
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func Test(t *testing.T) { check.TestingT(t) }
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// RegisterInProcessSuite registers an in-process storage driver test suite with
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// the go test runner.
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func RegisterInProcessSuite(driverConstructor DriverConstructor, skipCheck SkipCheck) {
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check.Suite(&DriverSuite{
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Constructor: driverConstructor,
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SkipCheck: skipCheck,
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})
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}
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// RegisterIPCSuite registers a storage driver test suite which runs the named
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// driver as a child process with the given parameters.
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func RegisterIPCSuite(driverName string, ipcParams map[string]string, skipCheck SkipCheck) {
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panic("ipc testing is disabled for now")
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// NOTE(stevvooe): IPC testing is disabled for now. Uncomment the code
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// block before and remove the panic when we phase it back in.
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// suite := &DriverSuite{
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// Constructor: func() (storagedriver.StorageDriver, error) {
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// d, err := ipc.NewDriverClient(driverName, ipcParams)
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// if err != nil {
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// return nil, err
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// }
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// err = d.Start()
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// if err != nil {
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// return nil, err
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// }
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// return d, nil
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// },
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// SkipCheck: skipCheck,
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// }
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// suite.Teardown = func() error {
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// if suite.StorageDriver == nil {
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// return nil
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// }
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// driverClient := suite.StorageDriver.(*ipc.StorageDriverClient)
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// return driverClient.Stop()
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// }
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// check.Suite(suite)
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}
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// SkipCheck is a function used to determine if a test suite should be skipped.
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// If a SkipCheck returns a non-empty skip reason, the suite is skipped with
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// the given reason.
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type SkipCheck func() (reason string)
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// NeverSkip is a default SkipCheck which never skips the suite.
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var NeverSkip SkipCheck = func() string { return "" }
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// DriverConstructor is a function which returns a new
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// storagedriver.StorageDriver.
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type DriverConstructor func() (storagedriver.StorageDriver, error)
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// DriverTeardown is a function which cleans up a suite's
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// storagedriver.StorageDriver.
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type DriverTeardown func() error
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// DriverSuite is a gocheck test suite designed to test a
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// storagedriver.StorageDriver.
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// The intended way to create a DriverSuite is with RegisterInProcessSuite or
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// RegisterIPCSuite.
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type DriverSuite struct {
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Constructor DriverConstructor
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Teardown DriverTeardown
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SkipCheck
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storagedriver.StorageDriver
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}
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// SetUpSuite sets up the gocheck test suite.
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func (suite *DriverSuite) SetUpSuite(c *check.C) {
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if reason := suite.SkipCheck(); reason != "" {
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c.Skip(reason)
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}
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d, err := suite.Constructor()
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c.Assert(err, check.IsNil)
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suite.StorageDriver = d
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}
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// TearDownSuite tears down the gocheck test suite.
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func (suite *DriverSuite) TearDownSuite(c *check.C) {
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if suite.Teardown != nil {
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err := suite.Teardown()
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c.Assert(err, check.IsNil)
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}
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}
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// TestWriteRead1 tests a simple write-read workflow.
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func (suite *DriverSuite) TestWriteRead1(c *check.C) {
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filename := randomString(32)
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contents := []byte("a")
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suite.writeReadCompare(c, filename, contents)
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}
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// TestWriteRead2 tests a simple write-read workflow with unicode data.
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func (suite *DriverSuite) TestWriteRead2(c *check.C) {
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filename := randomString(32)
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contents := []byte("\xc3\x9f")
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suite.writeReadCompare(c, filename, contents)
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}
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// TestWriteRead3 tests a simple write-read workflow with a small string.
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func (suite *DriverSuite) TestWriteRead3(c *check.C) {
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filename := randomString(32)
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contents := []byte(randomString(32))
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suite.writeReadCompare(c, filename, contents)
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}
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// TestWriteRead4 tests a simple write-read workflow with 1MB of data.
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func (suite *DriverSuite) TestWriteRead4(c *check.C) {
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filename := randomString(32)
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contents := []byte(randomString(1024 * 1024))
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suite.writeReadCompare(c, filename, contents)
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}
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// TestReadNonexistent tests reading content from an empty path.
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func (suite *DriverSuite) TestReadNonexistent(c *check.C) {
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filename := randomString(32)
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_, err := suite.StorageDriver.GetContent(filename)
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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}
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// TestWriteReadStreams1 tests a simple write-read streaming workflow.
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func (suite *DriverSuite) TestWriteReadStreams1(c *check.C) {
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filename := randomString(32)
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contents := []byte("a")
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suite.writeReadCompareStreams(c, filename, contents)
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}
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// TestWriteReadStreams2 tests a simple write-read streaming workflow with
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// unicode data.
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func (suite *DriverSuite) TestWriteReadStreams2(c *check.C) {
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filename := randomString(32)
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contents := []byte("\xc3\x9f")
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suite.writeReadCompareStreams(c, filename, contents)
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}
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// TestWriteReadStreams3 tests a simple write-read streaming workflow with a
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// small amount of data.
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func (suite *DriverSuite) TestWriteReadStreams3(c *check.C) {
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filename := randomString(32)
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contents := []byte(randomString(32))
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suite.writeReadCompareStreams(c, filename, contents)
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}
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// TestWriteReadStreams4 tests a simple write-read streaming workflow with 1MB
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// of data.
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func (suite *DriverSuite) TestWriteReadStreams4(c *check.C) {
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filename := randomString(32)
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contents := []byte(randomString(1024 * 1024))
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suite.writeReadCompareStreams(c, filename, contents)
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}
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// TestReadStreamWithOffset tests that the appropriate data is streamed when
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// reading with a given offset.
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func (suite *DriverSuite) TestReadStreamWithOffset(c *check.C) {
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filename := randomString(32)
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defer suite.StorageDriver.Delete(filename)
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chunkSize := int64(32)
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contentsChunk1 := []byte(randomString(chunkSize))
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contentsChunk2 := []byte(randomString(chunkSize))
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contentsChunk3 := []byte(randomString(chunkSize))
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err := suite.StorageDriver.PutContent(filename, append(append(contentsChunk1, contentsChunk2...), contentsChunk3...))
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c.Assert(err, check.IsNil)
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reader, err := suite.StorageDriver.ReadStream(filename, 0)
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c.Assert(err, check.IsNil)
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defer reader.Close()
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readContents, err := ioutil.ReadAll(reader)
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c.Assert(err, check.IsNil)
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c.Assert(readContents, check.DeepEquals, append(append(contentsChunk1, contentsChunk2...), contentsChunk3...))
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reader, err = suite.StorageDriver.ReadStream(filename, chunkSize)
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c.Assert(err, check.IsNil)
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defer reader.Close()
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readContents, err = ioutil.ReadAll(reader)
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c.Assert(err, check.IsNil)
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c.Assert(readContents, check.DeepEquals, append(contentsChunk2, contentsChunk3...))
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reader, err = suite.StorageDriver.ReadStream(filename, chunkSize*2)
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c.Assert(err, check.IsNil)
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defer reader.Close()
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readContents, err = ioutil.ReadAll(reader)
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c.Assert(err, check.IsNil)
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c.Assert(readContents, check.DeepEquals, contentsChunk3)
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// Ensure we get invalid offest for negative offsets.
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reader, err = suite.StorageDriver.ReadStream(filename, -1)
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c.Assert(err, check.FitsTypeOf, storagedriver.InvalidOffsetError{})
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c.Assert(err.(storagedriver.InvalidOffsetError).Offset, check.Equals, int64(-1))
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c.Assert(err.(storagedriver.InvalidOffsetError).Path, check.Equals, filename)
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c.Assert(reader, check.IsNil)
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// Read past the end of the content and make sure we get a reader that
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// returns 0 bytes and io.EOF
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reader, err = suite.StorageDriver.ReadStream(filename, chunkSize*3)
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c.Assert(err, check.IsNil)
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defer reader.Close()
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buf := make([]byte, chunkSize)
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n, err := reader.Read(buf)
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c.Assert(err, check.Equals, io.EOF)
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c.Assert(n, check.Equals, 0)
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// Check the N-1 boundary condition, ensuring we get 1 byte then io.EOF.
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reader, err = suite.StorageDriver.ReadStream(filename, chunkSize*3-1)
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c.Assert(err, check.IsNil)
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defer reader.Close()
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n, err = reader.Read(buf)
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c.Assert(n, check.Equals, 1)
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// We don't care whether the io.EOF comes on the this read or the first
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// zero read, but the only error acceptable here is io.EOF.
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if err != nil {
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c.Assert(err, check.Equals, io.EOF)
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}
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// Any more reads should result in zero bytes and io.EOF
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n, err = reader.Read(buf)
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c.Assert(n, check.Equals, 0)
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c.Assert(err, check.Equals, io.EOF)
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}
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// TestContinueStreamAppend tests that a stream write can be appended to without
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// corrupting the data.
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func (suite *DriverSuite) TestContinueStreamAppend(c *check.C) {
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filename := randomString(32)
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defer suite.StorageDriver.Delete(filename)
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chunkSize := int64(10 * 1024 * 1024)
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contentsChunk1 := []byte(randomString(chunkSize))
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contentsChunk2 := []byte(randomString(chunkSize))
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contentsChunk3 := []byte(randomString(chunkSize))
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contentsChunk4 := []byte(randomString(chunkSize))
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zeroChunk := make([]byte, int64(chunkSize))
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fullContents := append(append(contentsChunk1, contentsChunk2...), contentsChunk3...)
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nn, err := suite.StorageDriver.WriteStream(filename, 0, bytes.NewReader(contentsChunk1))
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c.Assert(err, check.IsNil)
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c.Assert(nn, check.Equals, int64(len(contentsChunk1)))
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fi, err := suite.StorageDriver.Stat(filename)
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c.Assert(err, check.IsNil)
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c.Assert(fi, check.NotNil)
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c.Assert(fi.Size(), check.Equals, int64(len(contentsChunk1)))
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if fi.Size() > chunkSize {
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c.Fatalf("Offset too large, %d > %d", fi.Size(), chunkSize)
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}
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nn, err = suite.StorageDriver.WriteStream(filename, fi.Size(), bytes.NewReader(contentsChunk2))
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c.Assert(err, check.IsNil)
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c.Assert(nn, check.Equals, int64(len(contentsChunk2)))
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fi, err = suite.StorageDriver.Stat(filename)
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c.Assert(err, check.IsNil)
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c.Assert(fi, check.NotNil)
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c.Assert(fi.Size(), check.Equals, 2*chunkSize)
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if fi.Size() > 2*chunkSize {
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c.Fatalf("Offset too large, %d > %d", fi.Size(), 2*chunkSize)
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}
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nn, err = suite.StorageDriver.WriteStream(filename, fi.Size(), bytes.NewReader(fullContents[fi.Size():]))
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c.Assert(err, check.IsNil)
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c.Assert(nn, check.Equals, int64(len(fullContents[fi.Size():])))
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received, err := suite.StorageDriver.GetContent(filename)
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c.Assert(err, check.IsNil)
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c.Assert(received, check.DeepEquals, fullContents)
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// Writing past size of file extends file (no offest error). We would like
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// to write chunk 4 one chunk length past chunk 3. It should be successful
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// and the resulting file will be 5 chunks long, with a chunk of all
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// zeros.
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fullContents = append(fullContents, zeroChunk...)
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fullContents = append(fullContents, contentsChunk4...)
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nn, err = suite.StorageDriver.WriteStream(filename, int64(len(fullContents))-chunkSize, bytes.NewReader(contentsChunk4))
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c.Assert(err, check.IsNil)
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c.Assert(nn, check.Equals, chunkSize)
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fi, err = suite.StorageDriver.Stat(filename)
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c.Assert(err, check.IsNil)
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c.Assert(fi, check.NotNil)
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c.Assert(fi.Size(), check.Equals, int64(len(fullContents)))
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received, err = suite.StorageDriver.GetContent(filename)
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c.Assert(err, check.IsNil)
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c.Assert(len(received), check.Equals, len(fullContents))
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c.Assert(received[chunkSize*3:chunkSize*4], check.DeepEquals, zeroChunk)
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c.Assert(received[chunkSize*4:chunkSize*5], check.DeepEquals, contentsChunk4)
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c.Assert(received, check.DeepEquals, fullContents)
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// Ensure that negative offsets return correct error.
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nn, err = suite.StorageDriver.WriteStream(filename, -1, bytes.NewReader(zeroChunk))
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.InvalidOffsetError{})
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c.Assert(err.(storagedriver.InvalidOffsetError).Path, check.Equals, filename)
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c.Assert(err.(storagedriver.InvalidOffsetError).Offset, check.Equals, int64(-1))
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}
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// TestReadNonexistentStream tests that reading a stream for a nonexistent path
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// fails.
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func (suite *DriverSuite) TestReadNonexistentStream(c *check.C) {
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filename := randomString(32)
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_, err := suite.StorageDriver.ReadStream(filename, 0)
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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}
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// TestList checks the returned list of keys after populating a directory tree.
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func (suite *DriverSuite) TestList(c *check.C) {
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rootDirectory := "/" + randomString(int64(8+rand.Intn(8)))
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defer suite.StorageDriver.Delete(rootDirectory)
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parentDirectory := rootDirectory + "/" + randomString(int64(8+rand.Intn(8)))
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childFiles := make([]string, 50)
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for i := 0; i < len(childFiles); i++ {
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childFile := parentDirectory + "/" + randomString(int64(8+rand.Intn(8)))
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childFiles[i] = childFile
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err := suite.StorageDriver.PutContent(childFile, []byte(randomString(32)))
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c.Assert(err, check.IsNil)
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}
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sort.Strings(childFiles)
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keys, err := suite.StorageDriver.List("/")
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c.Assert(err, check.IsNil)
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c.Assert(keys, check.DeepEquals, []string{rootDirectory})
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keys, err = suite.StorageDriver.List(rootDirectory)
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c.Assert(err, check.IsNil)
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c.Assert(keys, check.DeepEquals, []string{parentDirectory})
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keys, err = suite.StorageDriver.List(parentDirectory)
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c.Assert(err, check.IsNil)
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sort.Strings(keys)
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c.Assert(keys, check.DeepEquals, childFiles)
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// A few checks to add here (check out #819 for more discussion on this):
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// 1. Ensure that all paths are absolute.
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// 2. Ensure that listings only include direct children.
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// 3. Ensure that we only respond to directory listings that end with a slash (maybe?).
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}
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// TestMove checks that a moved object no longer exists at the source path and
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// does exist at the destination.
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func (suite *DriverSuite) TestMove(c *check.C) {
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contents := []byte(randomString(32))
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sourcePath := randomString(32)
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destPath := randomString(32)
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defer suite.StorageDriver.Delete(sourcePath)
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defer suite.StorageDriver.Delete(destPath)
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err := suite.StorageDriver.PutContent(sourcePath, contents)
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c.Assert(err, check.IsNil)
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err = suite.StorageDriver.Move(sourcePath, destPath)
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c.Assert(err, check.IsNil)
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received, err := suite.StorageDriver.GetContent(destPath)
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c.Assert(err, check.IsNil)
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c.Assert(received, check.DeepEquals, contents)
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_, err = suite.StorageDriver.GetContent(sourcePath)
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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}
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// TestMoveNonexistent checks that moving a nonexistent key fails
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func (suite *DriverSuite) TestMoveNonexistent(c *check.C) {
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sourcePath := randomString(32)
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destPath := randomString(32)
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err := suite.StorageDriver.Move(sourcePath, destPath)
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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}
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// TestDelete checks that the delete operation removes data from the storage
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// driver
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func (suite *DriverSuite) TestDelete(c *check.C) {
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filename := randomString(32)
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contents := []byte(randomString(32))
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defer suite.StorageDriver.Delete(filename)
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err := suite.StorageDriver.PutContent(filename, contents)
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c.Assert(err, check.IsNil)
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err = suite.StorageDriver.Delete(filename)
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c.Assert(err, check.IsNil)
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_, err = suite.StorageDriver.GetContent(filename)
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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}
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// TestDeleteNonexistent checks that removing a nonexistent key fails.
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func (suite *DriverSuite) TestDeleteNonexistent(c *check.C) {
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filename := randomString(32)
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err := suite.StorageDriver.Delete(filename)
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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}
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// TestDeleteFolder checks that deleting a folder removes all child elements.
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func (suite *DriverSuite) TestDeleteFolder(c *check.C) {
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dirname := randomString(32)
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filename1 := randomString(32)
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filename2 := randomString(32)
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contents := []byte(randomString(32))
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defer suite.StorageDriver.Delete(path.Join(dirname, filename1))
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defer suite.StorageDriver.Delete(path.Join(dirname, filename2))
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err := suite.StorageDriver.PutContent(path.Join(dirname, filename1), contents)
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c.Assert(err, check.IsNil)
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err = suite.StorageDriver.PutContent(path.Join(dirname, filename2), contents)
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c.Assert(err, check.IsNil)
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err = suite.StorageDriver.Delete(dirname)
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c.Assert(err, check.IsNil)
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_, err = suite.StorageDriver.GetContent(path.Join(dirname, filename1))
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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_, err = suite.StorageDriver.GetContent(path.Join(dirname, filename2))
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c.Assert(err, check.NotNil)
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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}
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func (suite *DriverSuite) TestStatCall(c *check.C) {
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content := randomString(4096)
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dirPath := randomString(32)
|
|
fileName := randomString(32)
|
|
filePath := path.Join(dirPath, fileName)
|
|
|
|
// Call on non-existent file/dir, check error.
|
|
fi, err := suite.StorageDriver.Stat(filePath)
|
|
c.Assert(err, check.NotNil)
|
|
c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
|
|
c.Assert(fi, check.IsNil)
|
|
|
|
err = suite.StorageDriver.PutContent(filePath, []byte(content))
|
|
c.Assert(err, check.IsNil)
|
|
|
|
// Call on regular file, check results
|
|
start := time.Now().Truncate(time.Second) // truncated for filesystem
|
|
fi, err = suite.StorageDriver.Stat(filePath)
|
|
c.Assert(err, check.IsNil)
|
|
expectedModTime := time.Now()
|
|
c.Assert(fi, check.NotNil)
|
|
c.Assert(fi.Path(), check.Equals, filePath)
|
|
c.Assert(fi.Size(), check.Equals, int64(len(content)))
|
|
c.Assert(fi.IsDir(), check.Equals, false)
|
|
|
|
if start.After(fi.ModTime()) {
|
|
c.Fatalf("modtime %s before file created (%v)", fi.ModTime(), start)
|
|
}
|
|
|
|
if fi.ModTime().After(expectedModTime) {
|
|
c.Fatalf("modtime %s after file created (%v)", fi.ModTime(), expectedModTime)
|
|
}
|
|
|
|
// Call on directory
|
|
start = time.Now().Truncate(time.Second)
|
|
fi, err = suite.StorageDriver.Stat(dirPath)
|
|
c.Assert(err, check.IsNil)
|
|
expectedModTime = time.Now()
|
|
c.Assert(fi, check.NotNil)
|
|
c.Assert(fi.Path(), check.Equals, dirPath)
|
|
c.Assert(fi.Size(), check.Equals, int64(0))
|
|
c.Assert(fi.IsDir(), check.Equals, true)
|
|
|
|
if start.After(fi.ModTime()) {
|
|
c.Fatalf("modtime %s before file created (%v)", fi.ModTime(), start)
|
|
}
|
|
|
|
if fi.ModTime().After(expectedModTime) {
|
|
c.Fatalf("modtime %s after file created (%v)", fi.ModTime(), expectedModTime)
|
|
}
|
|
}
|
|
|
|
// TestConcurrentFileStreams checks that multiple *os.File objects can be passed
|
|
// in to WriteStream concurrently without hanging.
|
|
// TODO(bbland): fix this test...
|
|
func (suite *DriverSuite) TestConcurrentFileStreams(c *check.C) {
|
|
// if _, isIPC := suite.StorageDriver.(*ipc.StorageDriverClient); isIPC {
|
|
// c.Skip("Need to fix out-of-process concurrency")
|
|
// }
|
|
|
|
var wg sync.WaitGroup
|
|
|
|
testStream := func(size int64) {
|
|
defer wg.Done()
|
|
suite.testFileStreams(c, size)
|
|
}
|
|
|
|
wg.Add(6)
|
|
go testStream(8 * 1024 * 1024)
|
|
go testStream(4 * 1024 * 1024)
|
|
go testStream(2 * 1024 * 1024)
|
|
go testStream(1024 * 1024)
|
|
go testStream(1024)
|
|
go testStream(64)
|
|
|
|
wg.Wait()
|
|
}
|
|
|
|
func (suite *DriverSuite) testFileStreams(c *check.C, size int64) {
|
|
tf, err := ioutil.TempFile("", "tf")
|
|
c.Assert(err, check.IsNil)
|
|
defer os.Remove(tf.Name())
|
|
|
|
tfName := path.Base(tf.Name())
|
|
defer suite.StorageDriver.Delete(tfName)
|
|
|
|
contents := []byte(randomString(size))
|
|
|
|
_, err = tf.Write(contents)
|
|
c.Assert(err, check.IsNil)
|
|
|
|
tf.Sync()
|
|
tf.Seek(0, os.SEEK_SET)
|
|
|
|
nn, err := suite.StorageDriver.WriteStream(tfName, 0, tf)
|
|
c.Assert(err, check.IsNil)
|
|
c.Assert(nn, check.Equals, size)
|
|
|
|
reader, err := suite.StorageDriver.ReadStream(tfName, 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)
|
|
}
|
|
|
|
func (suite *DriverSuite) writeReadCompare(c *check.C, filename string, contents []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 []byte) {
|
|
defer suite.StorageDriver.Delete(filename)
|
|
|
|
nn, err := suite.StorageDriver.WriteStream(filename, 0, bytes.NewReader(contents))
|
|
c.Assert(err, check.IsNil)
|
|
c.Assert(nn, check.Equals, int64(len(contents)))
|
|
|
|
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 int64) string {
|
|
b := make([]byte, length)
|
|
for i := range b {
|
|
b[i] = pathChars[rand.Intn(len(pathChars))]
|
|
}
|
|
return string(b)
|
|
}
|