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tar_verifier.go
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tar_verifier.go
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package testhelpers
import (
"archive/tar"
"io"
"testing"
"time"
)
type TarVerifier struct {
t *testing.T
tr *tar.Reader
uid int
gid int
}
func NewTarVerifier(t *testing.T, tr *tar.Reader, uid, gid int) *TarVerifier {
return &TarVerifier{
t: t,
tr: tr,
uid: uid,
gid: gid,
}
}
func (v *TarVerifier) NextDirectory(name string, mode int64) {
v.t.Helper()
header, err := v.tr.Next()
if err != nil {
v.t.Fatalf("Failed to get next file: %s", err)
}
if header.Name != name {
v.t.Fatalf(`expected dir with name %s, got %s`, name, header.Name)
}
if header.Typeflag != tar.TypeDir {
v.t.Fatalf(`expected %s to be a Directory`, header.Name)
}
if header.Uid != v.uid {
v.t.Fatalf(`expected %s to have Uid %d but, got: %d`, header.Name, v.uid, header.Uid)
}
if header.Gid != v.gid {
v.t.Fatalf(`expected %s to have Gid %d but, got: %d`, header.Name, v.gid, header.Gid)
}
if header.Mode != mode {
v.t.Fatalf(`expected %s to have mode %o but, got: %o`, header.Name, mode, header.Mode)
}
if !header.ModTime.Equal(time.Date(1980, time.January, 1, 0, 0, 1, 0, time.UTC)) {
v.t.Fatalf(`expected %s to have been normalized, got: %s`, header.Name, header.ModTime.String())
}
}
func (v *TarVerifier) NoMoreFilesExist() {
v.t.Helper()
header, err := v.tr.Next()
if err == nil {
v.t.Fatalf(`expected no more files but found: %s`, header.Name)
} else if err != io.EOF {
v.t.Error(err.Error())
}
}
func (v *TarVerifier) NextFile(name, expectedFileContents string, expectedFileMode int64) {
v.t.Helper()
header, err := v.tr.Next()
if err != nil {
v.t.Fatalf("Failed to get next file: %s", err)
}
if header.Name != name {
v.t.Fatalf(`expected dir with name %s, got %s`, name, header.Name)
}
if header.Typeflag != tar.TypeReg {
v.t.Fatalf(`expected %s to be a file`, header.Name)
}
if header.Uid != v.uid {
v.t.Fatalf(`expected %s to have Uid %d but, got: %d`, header.Name, v.uid, header.Uid)
}
if header.Gid != v.gid {
v.t.Fatalf(`expected %s to have Gid %d but, got: %d`, header.Name, v.gid, header.Gid)
}
fileContents := make([]byte, header.Size)
v.tr.Read(fileContents)
if string(fileContents) != expectedFileContents {
v.t.Fatalf(`expected to some-file.txt to have %s got %s`, expectedFileContents, string(fileContents))
}
if !header.ModTime.Equal(time.Date(1980, time.January, 1, 0, 0, 1, 0, time.UTC)) {
v.t.Fatalf(`expected %s to have been normalized, got: %s`, header.Name, header.ModTime.String())
}
if header.Mode != expectedFileMode {
v.t.Fatalf("files should have mode %o, got: %o", expectedFileMode, header.Mode)
}
}
func (v *TarVerifier) NextSymLink(name, link string) {
v.t.Helper()
header, err := v.tr.Next()
if err != nil {
v.t.Fatalf("Failed to get next file: %s", err)
}
if header.Name != name {
v.t.Fatalf(`expected dir with name %s, got %s`, name, header.Name)
}
if header.Typeflag != tar.TypeSymlink {
v.t.Fatalf(`expected %s to be a link got %s`, header.Name, string(header.Typeflag))
}
if header.Uid != v.uid {
v.t.Fatalf(`expected %s to have Uid %d but, got: %d`, header.Name, v.uid, header.Uid)
}
if header.Gid != v.gid {
v.t.Fatalf(`expected %s to have Gid %d but, got: %d`, header.Name, v.gid, header.Gid)
}
// tar names and linknames should be Linux formatted paths, regardless of OS
if header.Linkname != "../some-file.txt" {
v.t.Fatalf(`expected link-file to have target %s got: %s`, link, header.Linkname)
}
if !header.ModTime.Equal(time.Date(1980, time.January, 1, 0, 0, 1, 0, time.UTC)) {
v.t.Fatalf(`expected %s to have been normalized, got: %s`, header.Name, header.ModTime.String())
}
}