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https://github.com/moby/moby.git
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23e5c94cfb
Adds a new overlay driver which uses multiple lower directories to create the union fs. Additionally it uses symlinks and relative mount paths to allow a depth of 128 and stay within the mount page size limit. Diffs and done directly over a single directory allowing diffs to be done efficiently and without the need fo the naive diff driver. Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
106 lines
2.5 KiB
Go
106 lines
2.5 KiB
Go
// +build linux
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package overlay2
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import (
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"os"
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"syscall"
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"testing"
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"github.com/docker/docker/daemon/graphdriver"
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"github.com/docker/docker/daemon/graphdriver/graphtest"
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"github.com/docker/docker/pkg/archive"
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"github.com/docker/docker/pkg/reexec"
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)
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func init() {
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// Do not sure chroot to speed run time and allow archive
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// errors or hangs to be debugged directly from the test process.
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untar = archive.UntarUncompressed
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graphdriver.ApplyUncompressedLayer = archive.ApplyUncompressedLayer
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reexec.Init()
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}
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func cdMountFrom(dir, device, target, mType, label string) error {
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wd, err := os.Getwd()
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if err != nil {
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return err
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}
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os.Chdir(dir)
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defer os.Chdir(wd)
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return syscall.Mount(device, target, mType, 0, label)
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}
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// This avoids creating a new driver for each test if all tests are run
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// Make sure to put new tests between TestOverlaySetup and TestOverlayTeardown
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func TestOverlaySetup(t *testing.T) {
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graphtest.GetDriver(t, driverName)
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}
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func TestOverlayCreateEmpty(t *testing.T) {
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graphtest.DriverTestCreateEmpty(t, driverName)
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}
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func TestOverlayCreateBase(t *testing.T) {
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graphtest.DriverTestCreateBase(t, driverName)
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}
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func TestOverlayCreateSnap(t *testing.T) {
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graphtest.DriverTestCreateSnap(t, driverName)
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}
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func TestOverlay128LayerRead(t *testing.T) {
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graphtest.DriverTestDeepLayerRead(t, 128, driverName)
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}
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func TestOverlayDiffApply10Files(t *testing.T) {
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graphtest.DriverTestDiffApply(t, 10, driverName)
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}
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func TestOverlayChanges(t *testing.T) {
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graphtest.DriverTestChanges(t, driverName)
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}
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func TestOverlayTeardown(t *testing.T) {
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graphtest.PutDriver(t)
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}
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// Benchmarks should always setup new driver
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func BenchmarkExists(b *testing.B) {
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graphtest.DriverBenchExists(b, driverName)
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}
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func BenchmarkGetEmpty(b *testing.B) {
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graphtest.DriverBenchGetEmpty(b, driverName)
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}
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func BenchmarkDiffBase(b *testing.B) {
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graphtest.DriverBenchDiffBase(b, driverName)
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}
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func BenchmarkDiffSmallUpper(b *testing.B) {
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graphtest.DriverBenchDiffN(b, 10, 10, driverName)
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}
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func BenchmarkDiff10KFileUpper(b *testing.B) {
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graphtest.DriverBenchDiffN(b, 10, 10000, driverName)
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}
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func BenchmarkDiff10KFilesBottom(b *testing.B) {
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graphtest.DriverBenchDiffN(b, 10000, 10, driverName)
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}
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func BenchmarkDiffApply100(b *testing.B) {
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graphtest.DriverBenchDiffApplyN(b, 100, driverName)
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}
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func BenchmarkDiff20Layers(b *testing.B) {
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graphtest.DriverBenchDeepLayerDiff(b, 20, driverName)
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}
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func BenchmarkRead20Layers(b *testing.B) {
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graphtest.DriverBenchDeepLayerRead(b, 20, driverName)
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}
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