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