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//go:build linux
package overlay
import (
"os"
"testing"
graphdriver "github.com/containers/storage/drivers"
"github.com/containers/storage/drivers/graphtest"
"github.com/containers/storage/pkg/archive"
"github.com/containers/storage/pkg/idtools"
"github.com/containers/storage/pkg/reexec"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
const driverName = "overlay"
func init() {
// Do not sure chroot to speed run time and allow archive
// errors or hangs to be debugged directly from the test process.
untar = archive.UntarUncompressed
graphdriver.ApplyUncompressedLayer = archive.ApplyUncompressedLayer
reexec.Init()
}
func skipIfNaive(t *testing.T) {
td := t.TempDir()
if err := doesSupportNativeDiff(td, ""); err != nil {
t.Skipf("Cannot run test with naive diff")
}
}
// Ensure that a layer created with force_mask will keep the root directory mode
// with user.containers.override_stat. This preserved mode should also be
// inherited by the upper layer, whether force_mask is set or not.
//
// This test is placed before TestOverlaySetup() because it uses driver options
// different from the other tests.
func TestContainersOverlayXattr(t *testing.T) {
driver := graphtest.GetDriver(t, driverName, "force_mask=700")
require.NoError(t, driver.Create("lower", "", nil))
graphtest.ReconfigureDriver(t, driverName)
require.NoError(t, driver.Create("upper", "lower", nil))
root, err := driver.Get("upper", graphdriver.MountOpts{})
require.NoError(t, err)
fi, err := os.Stat(root)
require.NoError(t, err)
assert.Equal(t, 0o555&os.ModePerm, fi.Mode()&os.ModePerm, root)
}
func TestSupportsShifting(t *testing.T) {
contiguousMap := []idtools.IDMap{
{
ContainerID: 0,
HostID: 1000,
Size: 65536,
},
}
nonContiguousMap := []idtools.IDMap{
{
ContainerID: 0,
HostID: 0,
Size: 1,
},
{
ContainerID: 2,
HostID: 2,
Size: 1,
},
}
t.Run("no mount program", func(t *testing.T) {
driver := graphtest.GetDriver(t, driverName)
supported := driver.SupportsShifting(nil, nil)
assert.Equal(t, supported, driver.SupportsShifting(contiguousMap, contiguousMap), "contiguous map with no mount program")
assert.Equal(t, supported, driver.SupportsShifting(nonContiguousMap, nonContiguousMap), "non-contiguous map with no mount program")
})
t.Run("with mount program", func(t *testing.T) {
driver := graphtest.GetDriver(t, driverName, "mount_program=/usr/bin/true")
assert.True(t, driver.SupportsShifting(nil, nil), "nil map with mount program")
assert.True(t, driver.SupportsShifting(contiguousMap, contiguousMap), "contiguous map with mount program")
// If a mount program is specified, SupportsShifting must return false
assert.False(t, driver.SupportsShifting(nonContiguousMap, nonContiguousMap), "non-contiguous map with mount program")
})
}
// This avoids creating a new driver for each test if all tests are run
// Make sure to put new tests between TestOverlaySetup and TestOverlayTeardown
func TestOverlaySetup(t *testing.T) {
graphtest.GetDriver(t, driverName)
}
func TestOverlayCreateEmpty(t *testing.T) {
graphtest.DriverTestCreateEmpty(t, driverName)
}
func TestOverlayCreateBase(t *testing.T) {
graphtest.DriverTestCreateBase(t, driverName)
}
func TestOverlayCreateSnap(t *testing.T) {
graphtest.DriverTestCreateSnap(t, driverName)
}
func TestOverlayCreateFromTemplate(t *testing.T) {
graphtest.DriverTestCreateFromTemplate(t, driverName)
}
func TestOverlay128LayerRead(t *testing.T) {
graphtest.DriverTestDeepLayerRead(t, 128, driverName)
}
func TestOverlayDiffApply10Files(t *testing.T) {
skipIfNaive(t)
graphtest.DriverTestDiffApply(t, 10, driverName)
}
func TestOverlayChanges(t *testing.T) {
skipIfNaive(t)
graphtest.DriverTestChanges(t, driverName)
}
func TestOverlayEcho(t *testing.T) {
graphtest.DriverTestEcho(t, driverName)
}
func TestOverlayListLayers(t *testing.T) {
graphtest.DriverTestListLayers(t, driverName)
}
func TestOverlayTeardown(t *testing.T) {
graphtest.PutDriver(t)
}
// Benchmarks should always setup new driver
func BenchmarkExists(b *testing.B) {
graphtest.DriverBenchExists(b, driverName)
}
func BenchmarkGetEmpty(b *testing.B) {
graphtest.DriverBenchGetEmpty(b, driverName)
}
func BenchmarkDiffBase(b *testing.B) {
graphtest.DriverBenchDiffBase(b, driverName)
}
func BenchmarkDiffSmallUpper(b *testing.B) {
graphtest.DriverBenchDiffN(b, 10, 10, driverName)
}
func BenchmarkDiff10KFileUpper(b *testing.B) {
graphtest.DriverBenchDiffN(b, 10, 10000, driverName)
}
func BenchmarkDiff10KFilesBottom(b *testing.B) {
graphtest.DriverBenchDiffN(b, 10000, 10, driverName)
}
func BenchmarkDiffApply100(b *testing.B) {
graphtest.DriverBenchDiffApplyN(b, 100, driverName)
}
func BenchmarkDiff20Layers(b *testing.B) {
graphtest.DriverBenchDeepLayerDiff(b, 20, driverName)
}
func BenchmarkRead20Layers(b *testing.B) {
graphtest.DriverBenchDeepLayerRead(b, 20, driverName)
}
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