t/t0000-basic.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 test_description='Test the very basics part #1.
   7
   8 The rest of the test suite does not check the basic operation of git
   9 plumbing commands to work very carefully.  Their job is to concentrate
  10 on tricky features that caused bugs in the past to detect regression.
  11
  12 This test runs very basic features, like registering things in cache,
  13 writing tree, etc.
  14
  15 Note that this test *deliberately* hard-codes many expected object
  16 IDs.  When object ID computation changes, like in the previous case of
  17 swapping compression and hashing order, the person who is making the
  18 modification *should* take notice and update the test vectors here.
  19 '
  20
  21 ################################################################
  22 # It appears that people try to run tests without building...
  23
  24 ../git >/dev/null
  25 if test $? != 1
  26 then
  27         echo >&2 'You do not seem to have built git yet.'
  28         exit 1
  29 fi
  30
  31 . ./test-lib.sh
  32
  33 ################################################################
  34 # git init has been done in an empty repository.
  35 # make sure it is empty.
  36
  37 find .git/objects -type f -print >should-be-empty
  38 test_expect_success \
  39     '.git/objects should be empty after git init in an empty repo.' \
  40     'cmp -s /dev/null should-be-empty'
  41
  42 # also it should have 2 subdirectories; no fan-out anymore, pack, and info.
  43 # 3 is counting "objects" itself
  44 find .git/objects -type d -print >full-of-directories
  45 test_expect_success \
  46     '.git/objects should have 3 subdirectories.' \
  47     'test $(wc -l < full-of-directories) = 3'
  48
  49 ################################################################
  50 # Test harness
  51 test_expect_success 'success is reported like this' '
  52     :
  53 '
  54 test_expect_failure 'pretend we have a known breakage' '
  55     false
  56 '
  57 test_expect_failure 'pretend we have fixed a known breakage' '
  58     :
  59 '
  60 test_set_prereq HAVEIT
  61 haveit=no
  62 test_expect_success HAVEIT 'test runs if prerequisite is satisfied' '
  63     test_have_prereq HAVEIT &&
  64     haveit=yes
  65 '
  66 donthaveit=yes
  67 test_expect_success DONTHAVEIT 'unmet prerequisite causes test to be skipped' '
  68     donthaveit=no
  69 '
  70 if test $haveit$donthaveit != yesyes
  71 then
  72         say "bug in test framework: prerequisite tags do not work reliably"
  73         exit 1
  74 fi
  75
  76 test_set_prereq HAVETHIS
  77 haveit=no
  78 test_expect_success HAVETHIS,HAVEIT 'test runs if prerequisites are satisfied' '
  79     test_have_prereq HAVEIT &&
  80     test_have_prereq HAVETHIS &&
  81     haveit=yes
  82 '
  83 donthaveit=yes
  84 test_expect_success HAVEIT,DONTHAVEIT 'unmet prerequisites causes test to be skipped' '
  85     donthaveit=no
  86 '
  87 donthaveiteither=yes
  88 test_expect_success DONTHAVEIT,HAVEIT 'unmet prerequisites causes test to be skipped' '
  89     donthaveiteither=no
  90 '
  91 if test $haveit$donthaveit$donthaveiteither != yesyesyes
  92 then
  93         say "bug in test framework: multiple prerequisite tags do not work reliably"
  94         exit 1
  95 fi
  96
  97 clean=no
  98 test_expect_success 'tests clean up after themselves' '
  99     test_when_finished clean=yes
 100 '
 101
 102 cleaner=no
 103 test_expect_code 1 'tests clean up even after a failure' '
 104     test_when_finished cleaner=yes &&
 105     (exit 1)
 106 '
 107
 108 if test $clean$cleaner != yesyes
 109 then
 110         say "bug in test framework: cleanup commands do not work reliably"
 111         exit 1
 112 fi
 113
 114 test_expect_code 2 'failure to clean up causes the test to fail' '
 115     test_when_finished "(exit 2)"
 116 '
 117
 118 ################################################################
 119 # Basics of the basics
 120
 121 # updating a new file without --add should fail.
 122 test_expect_success 'git update-index without --add should fail adding.' '
 123     test_must_fail git update-index should-be-empty
 124 '
 125
 126 # and with --add it should succeed, even if it is empty (it used to fail).
 127 test_expect_success \
 128     'git update-index with --add should succeed.' \
 129     'git update-index --add should-be-empty'
 130
 131 test_expect_success \
 132     'writing tree out with git write-tree' \
 133     'tree=$(git write-tree)'
 134
 135 # we know the shape and contents of the tree and know the object ID for it.
 136 test_expect_success \
 137     'validate object ID of a known tree.' \
 138     'test "$tree" = 7bb943559a305bdd6bdee2cef6e5df2413c3d30a'
 139
 140 # Removing paths.
 141 rm -f should-be-empty full-of-directories
 142 test_expect_success 'git update-index without --remove should fail removing.' '
 143     test_must_fail git update-index should-be-empty
 144 '
 145
 146 test_expect_success \
 147     'git update-index with --remove should be able to remove.' \
 148     'git update-index --remove should-be-empty'
 149
 150 # Empty tree can be written with recent write-tree.
 151 test_expect_success \
 152     'git write-tree should be able to write an empty tree.' \
 153     'tree=$(git write-tree)'
 154
 155 test_expect_success \
 156     'validate object ID of a known tree.' \
 157     'test "$tree" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904'
 158
 159 # Various types of objects
 160 # Some filesystems do not support symblic links; on such systems
 161 # some expected values are different
 162 mkdir path2 path3 path3/subp3
 163 paths='path0 path2/file2 path3/file3 path3/subp3/file3'
 164 for p in $paths
 165 do
 166     echo "hello $p" >$p
 167 done
 168 if test_have_prereq SYMLINKS
 169 then
 170         for p in $paths
 171         do
 172                 ln -s "hello $p" ${p}sym
 173         done
 174         expectfilter=cat
 175         expectedtree=087704a96baf1c2d1c869a8b084481e121c88b5b
 176         expectedptree1=21ae8269cacbe57ae09138dcc3a2887f904d02b3
 177         expectedptree2=3c5e5399f3a333eddecce7a9b9465b63f65f51e2
 178 else
 179         expectfilter='grep -v sym'
 180         expectedtree=8e18edf7d7edcf4371a3ac6ae5f07c2641db7c46
 181         expectedptree1=cfb8591b2f65de8b8cc1020cd7d9e67e7793b325
 182         expectedptree2=ce580448f0148b985a513b693fdf7d802cacb44f
 183 fi
 184
 185 test_expect_success \
 186     'adding various types of objects with git update-index --add.' \
 187     'find path* ! -type d -print | xargs git update-index --add'
 188
 189 # Show them and see that matches what we expect.
 190 test_expect_success \
 191     'showing stage with git ls-files --stage' \
 192     'git ls-files --stage >current'
 193
 194 $expectfilter >expected <<\EOF
 195 100644 f87290f8eb2cbbea7857214459a0739927eab154 0       path0
 196 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0       path0sym
 197 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0       path2/file2
 198 120000 d8ce161addc5173867a3c3c730924388daedbc38 0       path2/file2sym
 199 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0       path3/file3
 200 120000 8599103969b43aff7e430efea79ca4636466794f 0       path3/file3sym
 201 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0       path3/subp3/file3
 202 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0       path3/subp3/file3sym
 203 EOF
 204 test_expect_success \
 205     'validate git ls-files output for a known tree.' \
 206     'test_cmp expected current'
 207
 208 test_expect_success \
 209     'writing tree out with git write-tree.' \
 210     'tree=$(git write-tree)'
 211 test_expect_success \
 212     'validate object ID for a known tree.' \
 213     'test "$tree" = "$expectedtree"'
 214
 215 test_expect_success \
 216     'showing tree with git ls-tree' \
 217     'git ls-tree $tree >current'
 218 cat >expected <<\EOF
 219 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 220 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 221 040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe    path2
 222 040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3    path3
 223 EOF
 224 test_expect_success SYMLINKS \
 225     'git ls-tree output for a known tree.' \
 226     'test_cmp expected current'
 227
 228 # This changed in ls-tree pathspec change -- recursive does
 229 # not show tree nodes anymore.
 230 test_expect_success \
 231     'showing tree with git ls-tree -r' \
 232     'git ls-tree -r $tree >current'
 233 $expectfilter >expected <<\EOF
 234 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 235 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 236 100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7    path2/file2
 237 120000 blob d8ce161addc5173867a3c3c730924388daedbc38    path2/file2sym
 238 100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376    path3/file3
 239 120000 blob 8599103969b43aff7e430efea79ca4636466794f    path3/file3sym
 240 100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f    path3/subp3/file3
 241 120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c    path3/subp3/file3sym
 242 EOF
 243 test_expect_success \
 244     'git ls-tree -r output for a known tree.' \
 245     'test_cmp expected current'
 246
 247 # But with -r -t we can have both.
 248 test_expect_success \
 249     'showing tree with git ls-tree -r -t' \
 250     'git ls-tree -r -t $tree >current'
 251 cat >expected <<\EOF
 252 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 253 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 254 040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe    path2
 255 100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7    path2/file2
 256 120000 blob d8ce161addc5173867a3c3c730924388daedbc38    path2/file2sym
 257 040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3    path3
 258 100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376    path3/file3
 259 120000 blob 8599103969b43aff7e430efea79ca4636466794f    path3/file3sym
 260 040000 tree 3c5e5399f3a333eddecce7a9b9465b63f65f51e2    path3/subp3
 261 100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f    path3/subp3/file3
 262 120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c    path3/subp3/file3sym
 263 EOF
 264 test_expect_success SYMLINKS \
 265     'git ls-tree -r output for a known tree.' \
 266     'test_cmp expected current'
 267
 268 test_expect_success \
 269     'writing partial tree out with git write-tree --prefix.' \
 270     'ptree=$(git write-tree --prefix=path3)'
 271 test_expect_success \
 272     'validate object ID for a known tree.' \
 273     'test "$ptree" = "$expectedptree1"'
 274
 275 test_expect_success \
 276     'writing partial tree out with git write-tree --prefix.' \
 277     'ptree=$(git write-tree --prefix=path3/subp3)'
 278 test_expect_success \
 279     'validate object ID for a known tree.' \
 280     'test "$ptree" = "$expectedptree2"'
 281
 282 cat >badobjects <<EOF
 283 100644 blob 1000000000000000000000000000000000000000    dir/file1
 284 100644 blob 2000000000000000000000000000000000000000    dir/file2
 285 100644 blob 3000000000000000000000000000000000000000    dir/file3
 286 100644 blob 4000000000000000000000000000000000000000    dir/file4
 287 100644 blob 5000000000000000000000000000000000000000    dir/file5
 288 EOF
 289
 290 rm .git/index
 291 test_expect_success \
 292     'put invalid objects into the index.' \
 293     'git update-index --index-info < badobjects'
 294
 295 test_expect_success 'writing this tree without --missing-ok.' '
 296     test_must_fail git write-tree
 297 '
 298
 299 test_expect_success \
 300     'writing this tree with --missing-ok.' \
 301     'git write-tree --missing-ok'
 302
 303
 304 ################################################################
 305 rm .git/index
 306 test_expect_success \
 307     'git read-tree followed by write-tree should be idempotent.' \
 308     'git read-tree $tree &&
 309      test -f .git/index &&
 310      newtree=$(git write-tree) &&
 311      test "$newtree" = "$tree"'
 312
 313 $expectfilter >expected <<\EOF
 314 :100644 100644 f87290f8eb2cbbea7857214459a0739927eab154 0000000000000000000000000000000000000000 M      path0
 315 :120000 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0000000000000000000000000000000000000000 M      path0sym
 316 :100644 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0000000000000000000000000000000000000000 M      path2/file2
 317 :120000 120000 d8ce161addc5173867a3c3c730924388daedbc38 0000000000000000000000000000000000000000 M      path2/file2sym
 318 :100644 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0000000000000000000000000000000000000000 M      path3/file3
 319 :120000 120000 8599103969b43aff7e430efea79ca4636466794f 0000000000000000000000000000000000000000 M      path3/file3sym
 320 :100644 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0000000000000000000000000000000000000000 M      path3/subp3/file3
 321 :120000 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0000000000000000000000000000000000000000 M      path3/subp3/file3sym
 322 EOF
 323 test_expect_success \
 324     'validate git diff-files output for a know cache/work tree state.' \
 325     'git diff-files >current && test_cmp current expected >/dev/null'
 326
 327 test_expect_success \
 328     'git update-index --refresh should succeed.' \
 329     'git update-index --refresh'
 330
 331 test_expect_success \
 332     'no diff after checkout and git update-index --refresh.' \
 333     'git diff-files >current && cmp -s current /dev/null'
 334
 335 ################################################################
 336 P=$expectedtree
 337 test_expect_success \
 338     'git commit-tree records the correct tree in a commit.' \
 339     'commit0=$(echo NO | git commit-tree $P) &&
 340      tree=$(git show --pretty=raw $commit0 |
 341          sed -n -e "s/^tree //p" -e "/^author /q") &&
 342      test "z$tree" = "z$P"'
 343
 344 test_expect_success \
 345     'git commit-tree records the correct parent in a commit.' \
 346     'commit1=$(echo NO | git commit-tree $P -p $commit0) &&
 347      parent=$(git show --pretty=raw $commit1 |
 348          sed -n -e "s/^parent //p" -e "/^author /q") &&
 349      test "z$commit0" = "z$parent"'
 350
 351 test_expect_success \
 352     'git commit-tree omits duplicated parent in a commit.' \
 353     'commit2=$(echo NO | git commit-tree $P -p $commit0 -p $commit0) &&
 354      parent=$(git show --pretty=raw $commit2 |
 355          sed -n -e "s/^parent //p" -e "/^author /q" |
 356          sort -u) &&
 357      test "z$commit0" = "z$parent" &&
 358      numparent=$(git show --pretty=raw $commit2 |
 359          sed -n -e "s/^parent //p" -e "/^author /q" |
 360          wc -l) &&
 361      test $numparent = 1'
 362
 363 test_expect_success 'update-index D/F conflict' '
 364         mv path0 tmp &&
 365         mv path2 path0 &&
 366         mv tmp path2 &&
 367         git update-index --add --replace path2 path0/file2 &&
 368         numpath0=$(git ls-files path0 | wc -l) &&
 369         test $numpath0 = 1
 370 '
 371
 372 test_expect_success SYMLINKS 'absolute path works as expected' '
 373         mkdir first &&
 374         ln -s ../.git first/.git &&
 375         mkdir second &&
 376         ln -s ../first second/other &&
 377         mkdir third &&
 378         dir="$(cd .git; pwd -P)" &&
 379         dir2=third/../second/other/.git &&
 380         test "$dir" = "$(test-path-utils make_absolute_path $dir2)" &&
 381         file="$dir"/index &&
 382         test "$file" = "$(test-path-utils make_absolute_path $dir2/index)" &&
 383         basename=blub &&
 384         test "$dir/$basename" = "$(cd .git && test-path-utils make_absolute_path "$basename")" &&
 385         ln -s ../first/file .git/syml &&
 386         sym="$(cd first; pwd -P)"/file &&
 387         test "$sym" = "$(test-path-utils make_absolute_path "$dir2/syml")"
 388 '
 389
 390 test_expect_success 'very long name in the index handled sanely' '
 391
 392         a=a && # 1
 393         a=$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a && # 16
 394         a=$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a && # 256
 395         a=$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a && # 4096
 396         a=${a}q &&
 397
 398         >path4 &&
 399         git update-index --add path4 &&
 400         (
 401                 git ls-files -s path4 |
 402                 sed -e "s/      .*/     /" |
 403                 tr -d "\012"
 404                 echo "$a"
 405         ) | git update-index --index-info &&
 406         len=$(git ls-files "a*" | wc -c) &&
 407         test $len = 4098
 408 '
 409
 410 test_done