forked from TrueCloudLab/distribution
Merge pull request #767 from BrianBland/ng-storagedriver-concurrency-test
Adds a test for concurrent storagedriver Write/Read Stream operations
This commit is contained in:
Olivier Gambier
commit
efd350c3e7
2 changed files with 104 additions and 40 deletions
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@ -422,10 +422,10 @@ func (driver *StorageDriverClient) handleSubprocessExit() {
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// stopped
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func (driver *StorageDriverClient) receiveResponse(receiver libchan.Receiver, response interface{}) error {
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receiveChan := make(chan error, 1)
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go func(receiveChan chan<- error) {
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go func(receiver libchan.Receiver, receiveChan chan<- error) {
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defer close(receiveChan)
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receiveChan <- receiver.Receive(response)
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}(receiveChan)
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}(receiver, receiveChan)
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var err error
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var ok bool
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@ -4,6 +4,7 @@ import (
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"bytes"
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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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"testing"
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@ -17,7 +18,8 @@ import (
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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 the go test runner
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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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@ -25,8 +27,8 @@ func RegisterInProcessSuite(driverConstructor DriverConstructor, skipCheck SkipC
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})
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}
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// RegisterIPCSuite registers a storage driver test suite which runs the named driver as a child
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// process with the given parameters
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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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suite := &DriverSuite{
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Constructor: func() (storagedriver.StorageDriver, error) {
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@ -53,21 +55,26 @@ func RegisterIPCSuite(driverName string, ipcParams map[string]string, skipCheck
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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 the given reason
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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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// 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 storagedriver.StorageDriver
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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 storagedriver.StorageDriver
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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 storagedriver.StorageDriver
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// The intended way to create a DriverSuite is with RegisterInProcessSuite or RegisterIPCSuite
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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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@ -75,7 +82,7 @@ type DriverSuite struct {
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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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// 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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@ -85,7 +92,7 @@ func (suite *DriverSuite) SetUpSuite(c *check.C) {
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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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// 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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@ -93,35 +100,35 @@ func (suite *DriverSuite) TearDownSuite(c *check.C) {
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}
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}
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// TestWriteRead1 tests a simple write-read workflow
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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, contents)
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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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// 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, contents)
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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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// 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, contents)
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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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// 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, contents)
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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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// 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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@ -129,39 +136,39 @@ func (suite *DriverSuite) TestReadNonexistent(c *check.C) {
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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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// 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, contents)
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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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// 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, contents)
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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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// 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, contents)
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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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// 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, contents)
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suite.writeReadCompareStreams(c, filename, contents)
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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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// 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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@ -200,7 +207,7 @@ func (suite *DriverSuite) TestContinueStreamAppend(c *check.C) {
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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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// 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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@ -243,7 +250,7 @@ func (suite *DriverSuite) TestReadStreamWithOffset(c *check.C) {
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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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// 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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@ -251,7 +258,7 @@ func (suite *DriverSuite) TestReadNonexistentStream(c *check.C) {
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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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// 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(uint64(8+rand.Intn(8)))
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defer suite.StorageDriver.Delete(rootDirectory)
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@ -282,7 +289,7 @@ func (suite *DriverSuite) TestList(c *check.C) {
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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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// 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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@ -335,7 +342,7 @@ func (suite *DriverSuite) TestDelete(c *check.C) {
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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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// 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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@ -343,7 +350,7 @@ func (suite *DriverSuite) TestDeleteNonexistent(c *check.C) {
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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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// 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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@ -371,7 +378,64 @@ func (suite *DriverSuite) TestDeleteFolder(c *check.C) {
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c.Assert(err, check.FitsTypeOf, storagedriver.PathNotFoundError{})
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}
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func (suite *DriverSuite) writeReadCompare(c *check.C, filename string, contents, expected []byte) {
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// TestConcurrentFileStreams checks that multiple *os.File objects can be passed
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// in to WriteStream concurrently without hanging.
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// TODO(bbland): fix this test...
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func (suite *DriverSuite) TestConcurrentFileStreams(c *check.C) {
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if _, isIPC := suite.StorageDriver.(*ipc.StorageDriverClient); isIPC {
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c.Skip("Need to fix out-of-process concurrency")
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}
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doneChan := make(chan struct{})
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testStream := func(size int) {
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suite.testFileStreams(c, size)
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doneChan <- struct{}{}
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}
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go testStream(8 * 1024 * 1024)
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go testStream(4 * 1024 * 1024)
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go testStream(2 * 1024 * 1024)
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go testStream(1024 * 1024)
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go testStream(1024)
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go testStream(64)
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for i := 0; i < 6; i++ {
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<-doneChan
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}
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}
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func (suite *DriverSuite) testFileStreams(c *check.C, size int) {
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tf, err := ioutil.TempFile("", "tf")
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c.Assert(err, check.IsNil)
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defer os.Remove(tf.Name())
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tfName := path.Base(tf.Name())
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defer suite.StorageDriver.Delete(tfName)
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contents := []byte(randomString(uint64(size)))
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_, err = tf.Write(contents)
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c.Assert(err, check.IsNil)
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tf.Sync()
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tf.Seek(0, os.SEEK_SET)
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err = suite.StorageDriver.WriteStream(tfName, 0, uint64(size), tf)
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c.Assert(err, check.IsNil)
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reader, err := suite.StorageDriver.ReadStream(tfName, 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, contents)
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}
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func (suite *DriverSuite) writeReadCompare(c *check.C, filename string, contents []byte) {
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defer suite.StorageDriver.Delete(filename)
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err := suite.StorageDriver.PutContent(filename, contents)
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@ -383,7 +447,7 @@ func (suite *DriverSuite) writeReadCompare(c *check.C, filename string, contents
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c.Assert(readContents, check.DeepEquals, contents)
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}
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func (suite *DriverSuite) writeReadCompareStreams(c *check.C, filename string, contents, expected []byte) {
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func (suite *DriverSuite) writeReadCompareStreams(c *check.C, filename string, contents []byte) {
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defer suite.StorageDriver.Delete(filename)
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err := suite.StorageDriver.WriteStream(filename, 0, uint64(len(contents)), ioutil.NopCloser(bytes.NewReader(contents)))
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