cmd/safcm-remote/ainsl/ainsl_test.go

   1 // Copyright (C) 2021  Simon Ruderich
   2 //
   3 // This program is free software: you can redistribute it and/or modify
   4 // it under the terms of the GNU General Public License as published by
   5 // the Free Software Foundation, either version 3 of the License, or
   6 // (at your option) any later version.
   7 //
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 package ainsl
  17
  18 import (
  19         "fmt"
  20         "io/fs"
  21         "os"
  22         "path/filepath"
  23         "reflect"
  24         "syscall"
  25         "testing"
  26
  27         "github.com/google/go-cmp/cmp"
  28
  29         ft "ruderich.org/simon/safcm/cmd/safcm-remote/sync/filetest"
  30 )
  31
  32 func TestHandle(t *testing.T) {
  33         cwd, err := os.Getwd()
  34         if err != nil {
  35                 t.Fatal(err)
  36         }
  37         defer os.Chdir(cwd)
  38
  39         err = os.RemoveAll("testdata")
  40         if err != nil {
  41                 t.Fatal(err)
  42         }
  43         err = os.Mkdir("testdata", 0700)
  44         if err != nil {
  45                 t.Fatal(err)
  46         }
  47
  48         // Set umask to test mode for new files
  49         umask := syscall.Umask(027)
  50         defer syscall.Umask(umask)
  51
  52         root := ft.File{
  53                 Path: ".",
  54                 Mode: fs.ModeDir | 0700,
  55         }
  56         _, uid, _, gid := ft.CurrentUserAndGroup()
  57
  58         tests := []struct {
  59                 name       string
  60                 path       string
  61                 line       string
  62                 create     bool
  63                 prepare    func()
  64                 expFiles   []ft.File
  65                 expChanges []string
  66                 expErr     error
  67         }{
  68
  69                 // TODO: Add tests for chown and run them only as root
  70
  71                 {
  72                         "missing",
  73                         "file",
  74                         "line",
  75                         false,
  76                         nil,
  77                         []ft.File{
  78                                 root,
  79                         },
  80                         nil,
  81                         fmt.Errorf("\"file\": file does not exist, use -create"),
  82                 },
  83
  84                 {
  85                         "missing: create",
  86                         "file",
  87                         "line",
  88                         true,
  89                         nil,
  90                         []ft.File{
  91                                 root,
  92                                 ft.File{
  93                                         Path: "file",
  94                                         Mode: 0640,
  95                                         Data: []byte("line\n"),
  96                                 },
  97                         },
  98                         []string{
  99                                 fmt.Sprintf(`"file": created file (%d/%d -rw-r-----)`, uid, gid),
 100                                 `"file": added line "line"`,
 101                         },
 102                         nil,
 103                 },
 104                 {
 105                         "missing: create (empty line)",
 106                         "file",
 107                         "",
 108                         true,
 109                         nil,
 110                         []ft.File{
 111                                 root,
 112                         },
 113                         nil,
 114                         fmt.Errorf("empty line"),
 115                 },
 116                 {
 117                         "missing: create (newline)",
 118                         "file",
 119                         "line\n",
 120                         true,
 121                         nil,
 122                         []ft.File{
 123                                 root,
 124                         },
 125                         nil,
 126                         fmt.Errorf("line must not contain newlines: \"line\\n\""),
 127                 },
 128
 129                 {
 130                         "exists: unchanged",
 131                         "file",
 132                         "line",
 133                         true,
 134                         func() {
 135                                 ft.CreateFile("file", "line\n", 0641)
 136                         },
 137                         []ft.File{
 138                                 root,
 139                                 ft.File{
 140                                         Path: "file",
 141                                         Mode: 0641,
 142                                         Data: []byte("line\n"),
 143                                 },
 144                         },
 145                         nil,
 146                         nil,
 147                 },
 148
 149                 {
 150                         "exists: append",
 151                         "file",
 152                         "line",
 153                         true,
 154                         func() {
 155                                 ft.CreateFile("file", "existing\n", 0641)
 156                         },
 157                         []ft.File{
 158                                 root,
 159                                 ft.File{
 160                                         Path: "file",
 161                                         Mode: 0641,
 162                                         Data: []byte("existing\nline\n"),
 163                                 },
 164                         },
 165                         []string{
 166                                 `"file": added line "line"`,
 167                         },
 168                         nil,
 169                 },
 170                 {
 171                         "exists: append (no newline in file)",
 172                         "file",
 173                         "line",
 174                         true,
 175                         func() {
 176                                 ft.CreateFile("file", "existing", 0641)
 177                         },
 178                         []ft.File{
 179                                 root,
 180                                 ft.File{
 181                                         Path: "file",
 182                                         Mode: 0641,
 183                                         Data: []byte("existing\nline\n"),
 184                                 },
 185                         },
 186                         []string{
 187                                 `"file": added missing trailing newline`,
 188                                 `"file": added line "line"`,
 189                         },
 190                         nil,
 191                 },
 192                 {
 193                         "exists: append (only trailing newline I)",
 194                         "file",
 195                         "line",
 196                         true,
 197                         func() {
 198                                 ft.CreateFile("file", "first\nline", 0641)
 199                         },
 200                         []ft.File{
 201                                 root,
 202                                 ft.File{
 203                                         Path: "file",
 204                                         Mode: 0641,
 205                                         Data: []byte("first\nline\n"),
 206                                 },
 207                         },
 208                         []string{
 209                                 `"file": added missing trailing newline`,
 210                         },
 211                         nil,
 212                 },
 213                 {
 214                         "exists: append (only trailing newline II)",
 215                         "file",
 216                         "first",
 217                         true,
 218                         func() {
 219                                 ft.CreateFile("file", "first\nline", 0641)
 220                         },
 221                         []ft.File{
 222                                 root,
 223                                 ft.File{
 224                                         Path: "file",
 225                                         Mode: 0641,
 226                                         Data: []byte("first\nline\n"),
 227                                 },
 228                         },
 229                         []string{
 230                                 `"file": added missing trailing newline`,
 231                         },
 232                         nil,
 233                 },
 234                 {
 235                         "exists: append (partial line)",
 236                         "file",
 237                         "line with spaces",
 238                         true,
 239                         func() {
 240                                 ft.CreateFile("file", "# line with spaces\n", 0641)
 241                         },
 242                         []ft.File{
 243                                 root,
 244                                 ft.File{
 245                                         Path: "file",
 246                                         Mode: 0641,
 247                                         Data: []byte("# line with spaces\nline with spaces\n"),
 248                                 },
 249                         },
 250                         []string{
 251                                 `"file": added line "line with spaces"`,
 252                         },
 253                         nil,
 254                 },
 255
 256                 {
 257                         "exists: symlink",
 258                         "file",
 259                         "line",
 260                         true,
 261                         func() {
 262                                 ft.CreateSymlink("file", "target")
 263                         },
 264                         []ft.File{
 265                                 root,
 266                                 ft.File{
 267                                         Path: "file",
 268                                         Mode: fs.ModeSymlink | 0777,
 269                                         Data: []byte("target"),
 270                                 },
 271                         },
 272                         nil,
 273                         fmt.Errorf("open file: too many levels of symbolic links"),
 274                 },
 275                 {
 276                         "exists: fifo",
 277                         "file",
 278                         "line",
 279                         true,
 280                         func() {
 281                                 ft.CreateFifo("file", 0640)
 282                         },
 283                         []ft.File{
 284                                 root,
 285                                 ft.File{
 286                                         Path: "file",
 287                                         Mode: fs.ModeNamedPipe | 0640,
 288                                 },
 289                         },
 290                         nil,
 291                         fmt.Errorf("\"file\" is not a regular file but p---------"),
 292                 },
 293         }
 294
 295         for _, tc := range tests {
 296                 t.Run(tc.name, func(t *testing.T) {
 297                 // Create separate test directory for each test case
 298                 path := filepath.Join(cwd, "testdata", tc.name)
 299                 err = os.Mkdir(path, 0700)
 300                 if err != nil {
 301                         t.Fatal(err)
 302                 }
 303                 err = os.Chdir(path)
 304                 if err != nil {
 305                         t.Fatal(err)
 306                 }
 307
 308                 if tc.prepare != nil {
 309                         tc.prepare()
 310                 }
 311
 312                 changes, err := handle(tc.path, tc.line, tc.create)
 313                 if !reflect.DeepEqual(tc.expChanges, changes) {
 314                         t.Errorf("changes: %s",
 315                                 cmp.Diff(tc.expChanges, changes))
 316                 }
 317                 // Ugly but the simplest way to compare errors (including nil)
 318                 if fmt.Sprintf("%s", err) != fmt.Sprintf("%s", tc.expErr) {
 319                         t.Errorf("err = %#v, want %#v",
 320                                 err, tc.expErr)
 321                 }
 322
 323                 files, err := ft.WalkDir(path)
 324                 if err != nil {
 325                         t.Fatal(err)
 326                 }
 327                 if !reflect.DeepEqual(tc.expFiles, files) {
 328                         t.Errorf("files: %s",
 329                                 cmp.Diff(tc.expFiles, files))
 330                 }
 331                 })
 332         }
 333
 334         if !t.Failed() {
 335                 err = os.RemoveAll(filepath.Join(cwd, "testdata"))
 336                 if err != nil {
 337                         t.Fatal(err)
 338                 }
 339         }
 340 }