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test: add basic integration tests
Signed-off-by: Justin Chadwell <me@jedevc.com>
This commit is contained in:
Justin Chadwell
236
vendor/github.com/containerd/continuity/fs/fstest/testsuite.go
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236
vendor/github.com/containerd/continuity/fs/fstest/testsuite.go
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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 fstest
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import (
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"context"
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"os"
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"testing"
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)
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// TestApplier applies the test context
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type TestApplier interface {
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TestContext(context.Context) (context.Context, func(), error)
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Apply(context.Context, Applier) (string, func(), error)
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}
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// FSSuite runs the path test suite
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func FSSuite(t *testing.T, a TestApplier) {
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t.Run("Basic", makeTest(t, a, basicTest))
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t.Run("Deletion", makeTest(t, a, deletionTest))
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t.Run("Update", makeTest(t, a, updateTest))
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t.Run("DirectoryPermission", makeTest(t, a, directoryPermissionsTest))
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t.Run("ParentDirectoryPermission", makeTest(t, a, parentDirectoryPermissionsTest))
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t.Run("HardlinkUnmodified", makeTest(t, a, hardlinkUnmodified))
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t.Run("HardlinkBeforeUnmodified", makeTest(t, a, hardlinkBeforeUnmodified))
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t.Run("HardlinkBeforeModified", makeTest(t, a, hardlinkBeforeModified))
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}
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func makeTest(t *testing.T, ta TestApplier, as []Applier) func(t *testing.T) {
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return func(t *testing.T) {
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ctx, cleanup, err := ta.TestContext(context.Background())
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if err != nil {
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t.Fatalf("Unable to get test context: %+v", err)
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}
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defer cleanup()
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applyDir, err := os.MkdirTemp("", "test-expected-")
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if err != nil {
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t.Fatalf("Unable to make temp directory: %+v", err)
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}
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defer os.RemoveAll(applyDir)
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for i, a := range as {
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testDir, c, err := ta.Apply(ctx, a)
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if err != nil {
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t.Fatalf("Apply failed at %d: %+v", i, err)
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}
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if err := a.Apply(applyDir); err != nil {
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if c != nil {
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c()
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}
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t.Fatalf("Error applying change to apply directory: %+v", err)
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}
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err = CheckDirectoryEqual(applyDir, testDir)
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if c != nil {
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c()
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}
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if err != nil {
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t.Fatalf("Directories not equal at %d (expected <> tested): %+v", i, err)
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}
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}
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}
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}
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var (
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// baseApplier creates a basic filesystem layout
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// with multiple types of files for basic tests.
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baseApplier = Apply(
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CreateDir("/etc/", 0755),
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CreateFile("/etc/hosts", []byte("127.0.0.1 localhost"), 0644),
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Link("/etc/hosts", "/etc/hosts.allow"),
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CreateDir("/usr/local/lib", 0755),
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CreateFile("/usr/local/lib/libnothing.so", []byte{0x00, 0x00}, 0755),
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Symlink("libnothing.so", "/usr/local/lib/libnothing.so.2"),
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CreateDir("/home", 0755),
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CreateDir("/home/derek", 0700),
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// TODO: CreateSocket: how should Sockets be handled in continuity?
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)
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// basicTest covers basic operations
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basicTest = []Applier{
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baseApplier,
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Apply(
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CreateFile("/etc/hosts", []byte("127.0.0.1 localhost.localdomain"), 0644),
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CreateFile("/etc/fstab", []byte("/dev/sda1\t/\text4\tdefaults 1 1\n"), 0600),
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CreateFile("/etc/badfile", []byte(""), 0666),
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CreateFile("/home/derek/.zshrc", []byte("#ZSH is just better\n"), 0640),
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),
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Apply(
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Remove("/etc/badfile"),
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Rename("/home/derek", "/home/notderek"),
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),
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Apply(
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RemoveAll("/usr"),
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Remove("/etc/hosts.allow"),
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),
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Apply(
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RemoveAll("/home"),
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CreateDir("/home/derek", 0700),
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CreateFile("/home/derek/.bashrc", []byte("#not going away\n"), 0640),
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Link("/etc/hosts", "/etc/hosts.allow"),
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),
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}
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// deletionTest covers various deletion scenarios to ensure
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// deletions are properly picked up and applied
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deletionTest = []Applier{
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Apply(
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CreateDir("/test/somedir", 0755),
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CreateDir("/lib", 0700),
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CreateFile("/lib/hidden", []byte{}, 0644),
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),
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Apply(
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CreateFile("/test/a", []byte{}, 0644),
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CreateFile("/test/b", []byte{}, 0644),
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CreateDir("/test/otherdir", 0755),
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CreateFile("/test/otherdir/.empty", []byte{}, 0644),
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RemoveAll("/lib"),
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CreateDir("/lib", 0700),
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CreateFile("/lib/not-hidden", []byte{}, 0644),
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),
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Apply(
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Remove("/test/a"),
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Remove("/test/b"),
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RemoveAll("/test/otherdir"),
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CreateFile("/lib/newfile", []byte{}, 0644),
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),
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}
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// updateTest covers file updates for content and permission
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updateTest = []Applier{
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Apply(
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CreateDir("/d1", 0755),
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CreateDir("/d2", 0700),
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CreateFile("/d1/f1", []byte("something..."), 0644),
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CreateFile("/d1/f2", []byte("else..."), 0644),
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CreateFile("/d1/f3", []byte("entirely..."), 0644),
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),
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Apply(
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CreateFile("/d1/f1", []byte("file content of a different length"), 0664),
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Remove("/d1/f3"),
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CreateFile("/d1/f3", []byte("updated content"), 0664),
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Chmod("/d1/f2", 0766),
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Chmod("/d2", 0777),
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),
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}
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// directoryPermissionsTest covers directory permissions on update
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directoryPermissionsTest = []Applier{
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Apply(
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CreateDir("/d1", 0700),
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CreateDir("/d2", 0751),
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CreateDir("/d3", 0777),
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),
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Apply(
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CreateFile("/d1/f", []byte("irrelevant"), 0644),
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CreateDir("/d1/d", 0700),
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CreateFile("/d1/d/f", []byte("irrelevant"), 0644),
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CreateFile("/d2/f", []byte("irrelevant"), 0644),
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CreateFile("/d3/f", []byte("irrelevant"), 0644),
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),
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}
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// parentDirectoryPermissionsTest covers directory permissions for updated
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// files
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parentDirectoryPermissionsTest = []Applier{
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Apply(
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CreateDir("/d1", 0700),
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CreateDir("/d1/a", 0700),
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CreateDir("/d1/a/b", 0700),
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CreateDir("/d1/a/b/c", 0700),
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CreateFile("/d1/a/b/f", []byte("content1"), 0644),
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CreateDir("/d2", 0751),
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CreateDir("/d2/a/b", 0751),
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CreateDir("/d2/a/b/c", 0751),
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CreateFile("/d2/a/b/f", []byte("content1"), 0644),
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),
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Apply(
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CreateFile("/d1/a/b/f", []byte("content1"), 0644),
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Chmod("/d1/a/b/c", 0700),
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CreateFile("/d2/a/b/f", []byte("content2"), 0644),
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Chmod("/d2/a/b/c", 0751),
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),
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}
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hardlinkUnmodified = []Applier{
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baseApplier,
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Apply(
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CreateFile("/etc/hosts", []byte("127.0.0.1 localhost.localdomain"), 0644),
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),
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Apply(
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Link("/etc/hosts", "/etc/hosts.deny"),
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),
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}
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// Hardlink name before with modification
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// Tests link is created for unmodified files when a new hard linked file is seen first
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hardlinkBeforeUnmodified = []Applier{
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baseApplier,
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Apply(
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CreateFile("/etc/hosts", []byte("127.0.0.1 localhost.localdomain"), 0644),
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),
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Apply(
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Link("/etc/hosts", "/etc/before-hosts"),
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),
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}
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// Hardlink name after without modification
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// tests link is created for modified file with new hardlink
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hardlinkBeforeModified = []Applier{
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baseApplier,
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Apply(
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CreateFile("/etc/hosts", []byte("127.0.0.1 localhost.localdomain"), 0644),
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),
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Apply(
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Remove("/etc/hosts"),
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CreateFile("/etc/hosts", []byte("127.0.0.1 localhost"), 0644),
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Link("/etc/hosts", "/etc/before-hosts"),
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),
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}
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)
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