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 clean=no
  77 test_expect_success 'tests clean up after themselves' '
  78     test_when_finished clean=yes
  79 '
  80
  81 cleaner=no
  82 test_expect_code 1 'tests clean up even after a failure' '
  83     test_when_finished cleaner=yes &&
  84     (exit 1)
  85 '
  86
  87 if test $clean$cleaner != yesyes
  88 then
  89         say "bug in test framework: cleanup commands do not work reliably"
  90         exit 1
  91 fi
  92
  93 test_expect_code 2 'failure to clean up causes the test to fail' '
  94     test_when_finished "(exit 2)"
  95 '
  96
  97 ################################################################
  98 # Basics of the basics
  99
 100 # updating a new file without --add should fail.
 101 test_expect_success 'git update-index without --add should fail adding.' '
 102     test_must_fail git update-index should-be-empty
 103 '
 104
 105 # and with --add it should succeed, even if it is empty (it used to fail).
 106 test_expect_success \
 107     'git update-index with --add should succeed.' \
 108     'git update-index --add should-be-empty'
 109
 110 test_expect_success \
 111     'writing tree out with git write-tree' \
 112     'tree=$(git write-tree)'
 113
 114 # we know the shape and contents of the tree and know the object ID for it.
 115 test_expect_success \
 116     'validate object ID of a known tree.' \
 117     'test "$tree" = 7bb943559a305bdd6bdee2cef6e5df2413c3d30a'
 118
 119 # Removing paths.
 120 rm -f should-be-empty full-of-directories
 121 test_expect_success 'git update-index without --remove should fail removing.' '
 122     test_must_fail git update-index should-be-empty
 123 '
 124
 125 test_expect_success \
 126     'git update-index with --remove should be able to remove.' \
 127     'git update-index --remove should-be-empty'
 128
 129 # Empty tree can be written with recent write-tree.
 130 test_expect_success \
 131     'git write-tree should be able to write an empty tree.' \
 132     'tree=$(git write-tree)'
 133
 134 test_expect_success \
 135     'validate object ID of a known tree.' \
 136     'test "$tree" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904'
 137
 138 # Various types of objects
 139 # Some filesystems do not support symblic links; on such systems
 140 # some expected values are different
 141 mkdir path2 path3 path3/subp3
 142 paths='path0 path2/file2 path3/file3 path3/subp3/file3'
 143 for p in $paths
 144 do
 145     echo "hello $p" >$p
 146 done
 147 if test_have_prereq SYMLINKS
 148 then
 149         for p in $paths
 150         do
 151                 ln -s "hello $p" ${p}sym
 152         done
 153         expectfilter=cat
 154         expectedtree=087704a96baf1c2d1c869a8b084481e121c88b5b
 155         expectedptree1=21ae8269cacbe57ae09138dcc3a2887f904d02b3
 156         expectedptree2=3c5e5399f3a333eddecce7a9b9465b63f65f51e2
 157 else
 158         expectfilter='grep -v sym'
 159         expectedtree=8e18edf7d7edcf4371a3ac6ae5f07c2641db7c46
 160         expectedptree1=cfb8591b2f65de8b8cc1020cd7d9e67e7793b325
 161         expectedptree2=ce580448f0148b985a513b693fdf7d802cacb44f
 162 fi
 163
 164 test_expect_success \
 165     'adding various types of objects with git update-index --add.' \
 166     'find path* ! -type d -print | xargs git update-index --add'
 167
 168 # Show them and see that matches what we expect.
 169 test_expect_success \
 170     'showing stage with git ls-files --stage' \
 171     'git ls-files --stage >current'
 172
 173 $expectfilter >expected <<\EOF
 174 100644 f87290f8eb2cbbea7857214459a0739927eab154 0       path0
 175 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0       path0sym
 176 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0       path2/file2
 177 120000 d8ce161addc5173867a3c3c730924388daedbc38 0       path2/file2sym
 178 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0       path3/file3
 179 120000 8599103969b43aff7e430efea79ca4636466794f 0       path3/file3sym
 180 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0       path3/subp3/file3
 181 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0       path3/subp3/file3sym
 182 EOF
 183 test_expect_success \
 184     'validate git ls-files output for a known tree.' \
 185     'test_cmp expected current'
 186
 187 test_expect_success \
 188     'writing tree out with git write-tree.' \
 189     'tree=$(git write-tree)'
 190 test_expect_success \
 191     'validate object ID for a known tree.' \
 192     'test "$tree" = "$expectedtree"'
 193
 194 test_expect_success \
 195     'showing tree with git ls-tree' \
 196     'git ls-tree $tree >current'
 197 cat >expected <<\EOF
 198 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 199 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 200 040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe    path2
 201 040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3    path3
 202 EOF
 203 test_expect_success SYMLINKS \
 204     'git ls-tree output for a known tree.' \
 205     'test_cmp expected current'
 206
 207 # This changed in ls-tree pathspec change -- recursive does
 208 # not show tree nodes anymore.
 209 test_expect_success \
 210     'showing tree with git ls-tree -r' \
 211     'git ls-tree -r $tree >current'
 212 $expectfilter >expected <<\EOF
 213 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 214 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 215 100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7    path2/file2
 216 120000 blob d8ce161addc5173867a3c3c730924388daedbc38    path2/file2sym
 217 100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376    path3/file3
 218 120000 blob 8599103969b43aff7e430efea79ca4636466794f    path3/file3sym
 219 100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f    path3/subp3/file3
 220 120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c    path3/subp3/file3sym
 221 EOF
 222 test_expect_success \
 223     'git ls-tree -r output for a known tree.' \
 224     'test_cmp expected current'
 225
 226 # But with -r -t we can have both.
 227 test_expect_success \
 228     'showing tree with git ls-tree -r -t' \
 229     'git ls-tree -r -t $tree >current'
 230 cat >expected <<\EOF
 231 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 232 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 233 040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe    path2
 234 100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7    path2/file2
 235 120000 blob d8ce161addc5173867a3c3c730924388daedbc38    path2/file2sym
 236 040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3    path3
 237 100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376    path3/file3
 238 120000 blob 8599103969b43aff7e430efea79ca4636466794f    path3/file3sym
 239 040000 tree 3c5e5399f3a333eddecce7a9b9465b63f65f51e2    path3/subp3
 240 100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f    path3/subp3/file3
 241 120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c    path3/subp3/file3sym
 242 EOF
 243 test_expect_success SYMLINKS \
 244     'git ls-tree -r output for a known tree.' \
 245     'test_cmp expected current'
 246
 247 test_expect_success \
 248     'writing partial tree out with git write-tree --prefix.' \
 249     'ptree=$(git write-tree --prefix=path3)'
 250 test_expect_success \
 251     'validate object ID for a known tree.' \
 252     'test "$ptree" = "$expectedptree1"'
 253
 254 test_expect_success \
 255     'writing partial tree out with git write-tree --prefix.' \
 256     'ptree=$(git write-tree --prefix=path3/subp3)'
 257 test_expect_success \
 258     'validate object ID for a known tree.' \
 259     'test "$ptree" = "$expectedptree2"'
 260
 261 cat >badobjects <<EOF
 262 100644 blob 1000000000000000000000000000000000000000    dir/file1
 263 100644 blob 2000000000000000000000000000000000000000    dir/file2
 264 100644 blob 3000000000000000000000000000000000000000    dir/file3
 265 100644 blob 4000000000000000000000000000000000000000    dir/file4
 266 100644 blob 5000000000000000000000000000000000000000    dir/file5
 267 EOF
 268
 269 rm .git/index
 270 test_expect_success \
 271     'put invalid objects into the index.' \
 272     'git update-index --index-info < badobjects'
 273
 274 test_expect_success 'writing this tree without --missing-ok.' '
 275     test_must_fail git write-tree
 276 '
 277
 278 test_expect_success \
 279     'writing this tree with --missing-ok.' \
 280     'git write-tree --missing-ok'
 281
 282
 283 ################################################################
 284 rm .git/index
 285 test_expect_success \
 286     'git read-tree followed by write-tree should be idempotent.' \
 287     'git read-tree $tree &&
 288      test -f .git/index &&
 289      newtree=$(git write-tree) &&
 290      test "$newtree" = "$tree"'
 291
 292 $expectfilter >expected <<\EOF
 293 :100644 100644 f87290f8eb2cbbea7857214459a0739927eab154 0000000000000000000000000000000000000000 M      path0
 294 :120000 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0000000000000000000000000000000000000000 M      path0sym
 295 :100644 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0000000000000000000000000000000000000000 M      path2/file2
 296 :120000 120000 d8ce161addc5173867a3c3c730924388daedbc38 0000000000000000000000000000000000000000 M      path2/file2sym
 297 :100644 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0000000000000000000000000000000000000000 M      path3/file3
 298 :120000 120000 8599103969b43aff7e430efea79ca4636466794f 0000000000000000000000000000000000000000 M      path3/file3sym
 299 :100644 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0000000000000000000000000000000000000000 M      path3/subp3/file3
 300 :120000 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0000000000000000000000000000000000000000 M      path3/subp3/file3sym
 301 EOF
 302 test_expect_success \
 303     'validate git diff-files output for a know cache/work tree state.' \
 304     'git diff-files >current && test_cmp current expected >/dev/null'
 305
 306 test_expect_success \
 307     'git update-index --refresh should succeed.' \
 308     'git update-index --refresh'
 309
 310 test_expect_success \
 311     'no diff after checkout and git update-index --refresh.' \
 312     'git diff-files >current && cmp -s current /dev/null'
 313
 314 ################################################################
 315 P=$expectedtree
 316 test_expect_success \
 317     'git commit-tree records the correct tree in a commit.' \
 318     'commit0=$(echo NO | git commit-tree $P) &&
 319      tree=$(git show --pretty=raw $commit0 |
 320          sed -n -e "s/^tree //p" -e "/^author /q") &&
 321      test "z$tree" = "z$P"'
 322
 323 test_expect_success \
 324     'git commit-tree records the correct parent in a commit.' \
 325     'commit1=$(echo NO | git commit-tree $P -p $commit0) &&
 326      parent=$(git show --pretty=raw $commit1 |
 327          sed -n -e "s/^parent //p" -e "/^author /q") &&
 328      test "z$commit0" = "z$parent"'
 329
 330 test_expect_success \
 331     'git commit-tree omits duplicated parent in a commit.' \
 332     'commit2=$(echo NO | git commit-tree $P -p $commit0 -p $commit0) &&
 333      parent=$(git show --pretty=raw $commit2 |
 334          sed -n -e "s/^parent //p" -e "/^author /q" |
 335          sort -u) &&
 336      test "z$commit0" = "z$parent" &&
 337      numparent=$(git show --pretty=raw $commit2 |
 338          sed -n -e "s/^parent //p" -e "/^author /q" |
 339          wc -l) &&
 340      test $numparent = 1'
 341
 342 test_expect_success 'update-index D/F conflict' '
 343         mv path0 tmp &&
 344         mv path2 path0 &&
 345         mv tmp path2 &&
 346         git update-index --add --replace path2 path0/file2 &&
 347         numpath0=$(git ls-files path0 | wc -l) &&
 348         test $numpath0 = 1
 349 '
 350
 351 test_expect_success SYMLINKS 'absolute path works as expected' '
 352         mkdir first &&
 353         ln -s ../.git first/.git &&
 354         mkdir second &&
 355         ln -s ../first second/other &&
 356         mkdir third &&
 357         dir="$(cd .git; pwd -P)" &&
 358         dir2=third/../second/other/.git &&
 359         test "$dir" = "$(test-path-utils make_absolute_path $dir2)" &&
 360         file="$dir"/index &&
 361         test "$file" = "$(test-path-utils make_absolute_path $dir2/index)" &&
 362         basename=blub &&
 363         test "$dir/$basename" = "$(cd .git && test-path-utils make_absolute_path "$basename")" &&
 364         ln -s ../first/file .git/syml &&
 365         sym="$(cd first; pwd -P)"/file &&
 366         test "$sym" = "$(test-path-utils make_absolute_path "$dir2/syml")"
 367 '
 368
 369 test_expect_success 'very long name in the index handled sanely' '
 370
 371         a=a && # 1
 372         a=$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a && # 16
 373         a=$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a && # 256
 374         a=$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a$a && # 4096
 375         a=${a}q &&
 376
 377         >path4 &&
 378         git update-index --add path4 &&
 379         (
 380                 git ls-files -s path4 |
 381                 sed -e "s/      .*/     /" |
 382                 tr -d "\012"
 383                 echo "$a"
 384         ) | git update-index --index-info &&
 385         len=$(git ls-files "a*" | wc -c) &&
 386         test $len = 4098
 387 '
 388
 389 test_done