enable native (formerly naive) snapshotter by default

Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>

snapshots/native/native_test.go

@@ -0,0 +1,44 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package native
+
+import (
+	"context"
+	"runtime"
+	"testing"
+
+	"github.com/containerd/containerd/snapshots"
+	"github.com/containerd/containerd/snapshots/testsuite"
+	"github.com/containerd/containerd/testutil"
+)
+
+func newSnapshotter(ctx context.Context, root string) (snapshots.Snapshotter, func() error, error) {
+	snapshotter, err := NewSnapshotter(root)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return snapshotter, func() error { return snapshotter.Close() }, nil
+}
+
+func TestNaive(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("snapshotter not implemented on windows")
+	}
+	testutil.RequiresRoot(t)
+	testsuite.SnapshotterSuite(t, "Naive", newSnapshotter)
+}