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 are getting bitten by not installing
  23 # 'merge' (usually part of RCS package in binary distributions)
  24 # or have too old python without subprocess.  Check them and error
  25 # out before running any tests.  Also catch the bogosity of trying
  26 # to run tests without building while we are at it.
  27
  28 ../git >/dev/null
  29 if test $? != 1
  30 then
  31         echo >&2 'You do not seem to have built git yet.'
  32         exit 1
  33 fi
  34
  35 merge >/dev/null 2>/dev/null
  36 if test $? = 127
  37 then
  38         echo >&2 'You do not seem to have "merge" installed.
  39 Please check INSTALL document.'
  40         exit 1
  41 fi
  42
  43 . ./test-lib.sh
  44
  45 test "$no_python" || "$PYTHON" -c 'import subprocess' || {
  46         echo >&2 'Your python seem to lack "subprocess" module.
  47 Please check INSTALL document.'
  48         exit 1
  49 }
  50
  51 ################################################################
  52 # init-db has been done in an empty repository.
  53 # make sure it is empty.
  54
  55 find .git/objects -type f -print >should-be-empty
  56 test_expect_success \
  57     '.git/objects should be empty after git-init-db in an empty repo.' \
  58     'cmp -s /dev/null should-be-empty'
  59
  60 # also it should have 2 subdirectories; no fan-out anymore, pack, and info.
  61 # 3 is counting "objects" itself
  62 find .git/objects -type d -print >full-of-directories
  63 test_expect_success \
  64     '.git/objects should have 3 subdirectories.' \
  65     'test $(wc -l < full-of-directories) = 3'
  66
  67 ################################################################
  68 # Basics of the basics
  69
  70 # updating a new file without --add should fail.
  71 test_expect_failure \
  72     'git-update-index without --add should fail adding.' \
  73     'git-update-index should-be-empty'
  74
  75 # and with --add it should succeed, even if it is empty (it used to fail).
  76 test_expect_success \
  77     'git-update-index with --add should succeed.' \
  78     'git-update-index --add should-be-empty'
  79
  80 test_expect_success \
  81     'writing tree out with git-write-tree' \
  82     'tree=$(git-write-tree)'
  83
  84 # we know the shape and contents of the tree and know the object ID for it.
  85 test_expect_success \
  86     'validate object ID of a known tree.' \
  87     'test "$tree" = 7bb943559a305bdd6bdee2cef6e5df2413c3d30a'
  88
  89 # Removing paths.
  90 rm -f should-be-empty full-of-directories
  91 test_expect_failure \
  92     'git-update-index without --remove should fail removing.' \
  93     'git-update-index should-be-empty'
  94
  95 test_expect_success \
  96     'git-update-index with --remove should be able to remove.' \
  97     'git-update-index --remove should-be-empty'
  98
  99 # Empty tree can be written with recent write-tree.
 100 test_expect_success \
 101     'git-write-tree should be able to write an empty tree.' \
 102     'tree=$(git-write-tree)'
 103
 104 test_expect_success \
 105     'validate object ID of a known tree.' \
 106     'test "$tree" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904'
 107
 108 # Various types of objects
 109 mkdir path2 path3 path3/subp3
 110 for p in path0 path2/file2 path3/file3 path3/subp3/file3
 111 do
 112     echo "hello $p" >$p
 113     ln -s "hello $p" ${p}sym
 114 done
 115 test_expect_success \
 116     'adding various types of objects with git-update-index --add.' \
 117     'find path* ! -type d -print | xargs git-update-index --add'
 118
 119 # Show them and see that matches what we expect.
 120 test_expect_success \
 121     'showing stage with git-ls-files --stage' \
 122     'git-ls-files --stage >current'
 123
 124 cat >expected <<\EOF
 125 100644 f87290f8eb2cbbea7857214459a0739927eab154 0       path0
 126 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0       path0sym
 127 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0       path2/file2
 128 120000 d8ce161addc5173867a3c3c730924388daedbc38 0       path2/file2sym
 129 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0       path3/file3
 130 120000 8599103969b43aff7e430efea79ca4636466794f 0       path3/file3sym
 131 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0       path3/subp3/file3
 132 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0       path3/subp3/file3sym
 133 EOF
 134 test_expect_success \
 135     'validate git-ls-files output for a known tree.' \
 136     'diff current expected'
 137
 138 test_expect_success \
 139     'writing tree out with git-write-tree.' \
 140     'tree=$(git-write-tree)'
 141 test_expect_success \
 142     'validate object ID for a known tree.' \
 143     'test "$tree" = 087704a96baf1c2d1c869a8b084481e121c88b5b'
 144
 145 test_expect_success \
 146     'showing tree with git-ls-tree' \
 147     'git-ls-tree $tree >current'
 148 cat >expected <<\EOF
 149 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 150 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 151 040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe    path2
 152 040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3    path3
 153 EOF
 154 test_expect_success \
 155     'git-ls-tree output for a known tree.' \
 156     'diff current expected'
 157
 158 # This changed in ls-tree pathspec change -- recursive does
 159 # not show tree nodes anymore.
 160 test_expect_success \
 161     'showing tree with git-ls-tree -r' \
 162     'git-ls-tree -r $tree >current'
 163 cat >expected <<\EOF
 164 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 165 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 166 100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7    path2/file2
 167 120000 blob d8ce161addc5173867a3c3c730924388daedbc38    path2/file2sym
 168 100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376    path3/file3
 169 120000 blob 8599103969b43aff7e430efea79ca4636466794f    path3/file3sym
 170 100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f    path3/subp3/file3
 171 120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c    path3/subp3/file3sym
 172 EOF
 173 test_expect_success \
 174     'git-ls-tree -r output for a known tree.' \
 175     'diff current expected'
 176
 177 # But with -r -t we can have both.
 178 test_expect_success \
 179     'showing tree with git-ls-tree -r -t' \
 180     'git-ls-tree -r -t $tree >current'
 181 cat >expected <<\EOF
 182 100644 blob f87290f8eb2cbbea7857214459a0739927eab154    path0
 183 120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01    path0sym
 184 040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe    path2
 185 100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7    path2/file2
 186 120000 blob d8ce161addc5173867a3c3c730924388daedbc38    path2/file2sym
 187 040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3    path3
 188 100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376    path3/file3
 189 120000 blob 8599103969b43aff7e430efea79ca4636466794f    path3/file3sym
 190 040000 tree 3c5e5399f3a333eddecce7a9b9465b63f65f51e2    path3/subp3
 191 100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f    path3/subp3/file3
 192 120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c    path3/subp3/file3sym
 193 EOF
 194 test_expect_success \
 195     'git-ls-tree -r output for a known tree.' \
 196     'diff current expected'
 197
 198 ################################################################
 199 rm .git/index
 200 test_expect_success \
 201     'git-read-tree followed by write-tree should be idempotent.' \
 202     'git-read-tree $tree &&
 203      test -f .git/index &&
 204      newtree=$(git-write-tree) &&
 205      test "$newtree" = "$tree"'
 206
 207 cat >expected <<\EOF
 208 :100644 100644 f87290f8eb2cbbea7857214459a0739927eab154 0000000000000000000000000000000000000000 M      path0
 209 :120000 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0000000000000000000000000000000000000000 M      path0sym
 210 :100644 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0000000000000000000000000000000000000000 M      path2/file2
 211 :120000 120000 d8ce161addc5173867a3c3c730924388daedbc38 0000000000000000000000000000000000000000 M      path2/file2sym
 212 :100644 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0000000000000000000000000000000000000000 M      path3/file3
 213 :120000 120000 8599103969b43aff7e430efea79ca4636466794f 0000000000000000000000000000000000000000 M      path3/file3sym
 214 :100644 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0000000000000000000000000000000000000000 M      path3/subp3/file3
 215 :120000 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0000000000000000000000000000000000000000 M      path3/subp3/file3sym
 216 EOF
 217 test_expect_success \
 218     'validate git-diff-files output for a know cache/work tree state.' \
 219     'git-diff-files >current && diff >/dev/null -b current expected'
 220
 221 test_expect_success \
 222     'git-update-index --refresh should succeed.' \
 223     'git-update-index --refresh'
 224
 225 test_expect_success \
 226     'no diff after checkout and git-update-index --refresh.' \
 227     'git-diff-files >current && cmp -s current /dev/null'
 228
 229 ################################################################
 230 P=087704a96baf1c2d1c869a8b084481e121c88b5b
 231 test_expect_success \
 232     'git-commit-tree records the correct tree in a commit.' \
 233     'commit0=$(echo NO | git-commit-tree $P) &&
 234      tree=$(git show --pretty=raw $commit0 |
 235          sed -n -e "s/^tree //p" -e "/^author /q") &&
 236      test "z$tree" = "z$P"'
 237
 238 test_expect_success \
 239     'git-commit-tree records the correct parent in a commit.' \
 240     'commit1=$(echo NO | git-commit-tree $P -p $commit0) &&
 241      parent=$(git show --pretty=raw $commit1 |
 242          sed -n -e "s/^parent //p" -e "/^author /q") &&
 243      test "z$commit0" = "z$parent"'
 244
 245 test_expect_success \
 246     'git-commit-tree omits duplicated parent in a commit.' \
 247     'commit2=$(echo NO | git-commit-tree $P -p $commit0 -p $commit0) &&
 248      parent=$(git show --pretty=raw $commit2 |
 249          sed -n -e "s/^parent //p" -e "/^author /q" |
 250          sort -u) &&
 251      test "z$commit0" = "z$parent" &&
 252      numparent=$(git show --pretty=raw $commit2 |
 253          sed -n -e "s/^parent //p" -e "/^author /q" |
 254          wc -l) &&
 255      test $numparent = 1'
 256
 257 test_done