5cc915c26c
This function is not called during plugin initialization (#2140), but should be useful for downstream projects that uses overlayfs snapshotter as a Go library. Benchmark result on Ubuntu 17.10, GCE n1-standard-4: BenchmarkOverlaySupportedOnExt4-4 100 20490598 ns/op BenchmarkOverlayUnsupportedOnFType0XFS-4 30000 39316 ns/op BenchmarkOverlaySupportedOnFType1XFS-4 100 19287083 ns/op BenchmarkOverlayUnsupportedOnFAT-4 100 14217772 ns/op i.e. the overhead is typically about 20 msec on this machine. Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
// +build !windows
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/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package testutil
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import (
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"fmt"
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"os"
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"testing"
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"github.com/containerd/containerd/mount"
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"github.com/gotestyourself/gotestyourself/assert"
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)
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// Unmount unmounts a given mountPoint and sets t.Error if it fails
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func Unmount(t testing.TB, mountPoint string) {
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t.Log("unmount", mountPoint)
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err := mount.UnmountAll(mountPoint, umountflags)
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assert.NilError(t, err)
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}
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// RequiresRoot skips tests that require root, unless the test.root flag has
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// been set
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func RequiresRoot(t testing.TB) {
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if !rootEnabled {
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t.Skip("skipping test that requires root")
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}
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assert.Equal(t, 0, os.Getuid(), "This test must be run as root.")
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}
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// RequiresRootM is similar to RequiresRoot but intended to be called from *testing.M.
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func RequiresRootM() {
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if !rootEnabled {
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fmt.Fprintln(os.Stderr, "skipping test that requires root")
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os.Exit(0)
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}
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if 0 != os.Getuid() {
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fmt.Fprintln(os.Stderr, "This test must be run as root.")
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os.Exit(1)
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}
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}
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