mirror of
https://gitea.com/Lydanne/buildx.git
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45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
/*
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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 fstest
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import (
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"os/exec"
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"testing"
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"github.com/containerd/continuity/testutil"
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"github.com/containerd/continuity/testutil/loopback"
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)
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func WithMkfs(t *testing.T, f func(), mkfs ...string) {
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testutil.RequiresRoot(t)
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mnt := t.TempDir()
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loop, err := loopback.New(100 << 20) // 100 MB
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if err != nil {
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t.Fatal(err)
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}
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defer loop.Close()
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if out, err := exec.Command(mkfs[0], append(mkfs[1:], loop.Device)...).CombinedOutput(); err != nil {
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t.Fatalf("could not mkfs (%v) %s: %v (out: %q)", mkfs, loop.Device, err, string(out))
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}
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if out, err := exec.Command("mount", loop.Device, mnt).CombinedOutput(); err != nil {
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t.Fatalf("could not mount %s: %v (out: %q)", loop.Device, err, string(out))
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}
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defer testutil.Unmount(t, mnt)
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t.Setenv("TMPDIR", mnt)
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f()
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}
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