t/t1401-symbolic-ref.sh

   1 #!/bin/sh
   2
   3 test_description='basic symbolic-ref tests'
   4
   5 TEST_PASSES_SANITIZE_LEAK=true
   6 . ./test-lib.sh
   7
   8 # If the tests munging HEAD fail, they can break detection of
   9 # the git repo, meaning that further tests will operate on
  10 # the surrounding git repo instead of the trash directory.
  11 reset_to_sane() {
  12         rm -rf .git &&
  13         "$TAR" xf .git.tar
  14 }
  15
  16 test_expect_success 'setup' '
  17         git symbolic-ref HEAD refs/heads/foo &&
  18         test_commit file &&
  19         "$TAR" cf .git.tar .git/
  20 '
  21
  22 test_expect_success 'symbolic-ref read/write roundtrip' '
  23         git symbolic-ref HEAD refs/heads/read-write-roundtrip &&
  24         echo refs/heads/read-write-roundtrip >expect &&
  25         git symbolic-ref HEAD >actual &&
  26         test_cmp expect actual
  27 '
  28
  29 test_expect_success 'symbolic-ref refuses non-ref for HEAD' '
  30         test_must_fail git symbolic-ref HEAD foo
  31 '
  32
  33 reset_to_sane
  34
  35 test_expect_success 'symbolic-ref refuses bare sha1' '
  36         rev=$(git rev-parse HEAD) &&
  37         test_must_fail git symbolic-ref HEAD "$rev"
  38 '
  39
  40 reset_to_sane
  41
  42 test_expect_success 'HEAD cannot be removed' '
  43         test_must_fail git symbolic-ref -d HEAD
  44 '
  45
  46 reset_to_sane
  47
  48 test_expect_success 'symbolic-ref can be deleted' '
  49         git symbolic-ref NOTHEAD refs/heads/foo &&
  50         git symbolic-ref -d NOTHEAD &&
  51         git rev-parse refs/heads/foo &&
  52         test_must_fail git symbolic-ref NOTHEAD
  53 '
  54 reset_to_sane
  55
  56 test_expect_success 'symbolic-ref can delete dangling symref' '
  57         git symbolic-ref NOTHEAD refs/heads/missing &&
  58         git symbolic-ref -d NOTHEAD &&
  59         test_must_fail git rev-parse refs/heads/missing &&
  60         test_must_fail git symbolic-ref NOTHEAD
  61 '
  62 reset_to_sane
  63
  64 test_expect_success 'symbolic-ref fails to delete missing FOO' '
  65         echo "fatal: Cannot delete FOO, not a symbolic ref" >expect &&
  66         test_must_fail git symbolic-ref -d FOO >actual 2>&1 &&
  67         test_cmp expect actual
  68 '
  69 reset_to_sane
  70
  71 test_expect_success 'symbolic-ref fails to delete real ref' '
  72         echo "fatal: Cannot delete refs/heads/foo, not a symbolic ref" >expect &&
  73         test_must_fail git symbolic-ref -d refs/heads/foo >actual 2>&1 &&
  74         git rev-parse --verify refs/heads/foo &&
  75         test_cmp expect actual
  76 '
  77 reset_to_sane
  78
  79 test_expect_success 'create large ref name' '
  80         # make 256+ character ref; some systems may not handle that,
  81         # so be gentle
  82         long=0123456789abcdef &&
  83         long=$long/$long/$long/$long &&
  84         long=$long/$long/$long/$long &&
  85         long_ref=refs/heads/$long &&
  86         tree=$(git write-tree) &&
  87         commit=$(echo foo | git commit-tree $tree) &&
  88         if git update-ref $long_ref $commit; then
  89                 test_set_prereq LONG_REF
  90         else
  91                 echo >&2 "long refs not supported"
  92         fi
  93 '
  94
  95 test_expect_success LONG_REF 'symbolic-ref can point to large ref name' '
  96         git symbolic-ref HEAD $long_ref &&
  97         echo $long_ref >expect &&
  98         git symbolic-ref HEAD >actual &&
  99         test_cmp expect actual
 100 '
 101
 102 test_expect_success LONG_REF 'we can parse long symbolic ref' '
 103         echo $commit >expect &&
 104         git rev-parse --verify HEAD >actual &&
 105         test_cmp expect actual
 106 '
 107
 108 test_expect_success 'symbolic-ref reports failure in exit code' '
 109         # Create d/f conflict to simulate failure.
 110         test_must_fail git symbolic-ref refs/heads refs/heads/foo
 111 '
 112
 113 test_expect_success 'symbolic-ref writes reflog entry' '
 114         git checkout -b log1 &&
 115         test_commit one &&
 116         git checkout -b log2  &&
 117         test_commit two &&
 118         git checkout --orphan orphan &&
 119         git symbolic-ref -m create HEAD refs/heads/log1 &&
 120         git symbolic-ref -m update HEAD refs/heads/log2 &&
 121         cat >expect <<-\EOF &&
 122         update
 123         create
 124         EOF
 125         git log --format=%gs -g -2 >actual &&
 126         test_cmp expect actual
 127 '
 128
 129 test_expect_success 'symbolic-ref does not create ref d/f conflicts' '
 130         git checkout -b df &&
 131         test_commit df &&
 132         test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df &&
 133         git pack-refs --all --prune &&
 134         test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df
 135 '
 136
 137 test_expect_success 'symbolic-ref can overwrite pointer to invalid name' '
 138         test_when_finished reset_to_sane &&
 139         head=$(git rev-parse HEAD) &&
 140         git symbolic-ref HEAD refs/heads/outer &&
 141         test_when_finished "git update-ref -d refs/heads/outer/inner" &&
 142         git update-ref refs/heads/outer/inner $head &&
 143         git symbolic-ref HEAD refs/heads/unrelated
 144 '
 145
 146 test_expect_success 'symbolic-ref can resolve d/f name (EISDIR)' '
 147         test_when_finished reset_to_sane &&
 148         head=$(git rev-parse HEAD) &&
 149         git symbolic-ref HEAD refs/heads/outer/inner &&
 150         test_when_finished "git update-ref -d refs/heads/outer" &&
 151         git update-ref refs/heads/outer $head &&
 152         echo refs/heads/outer/inner >expect &&
 153         git symbolic-ref HEAD >actual &&
 154         test_cmp expect actual
 155 '
 156
 157 test_expect_success 'symbolic-ref can resolve d/f name (ENOTDIR)' '
 158         test_when_finished reset_to_sane &&
 159         head=$(git rev-parse HEAD) &&
 160         git symbolic-ref HEAD refs/heads/outer &&
 161         test_when_finished "git update-ref -d refs/heads/outer/inner" &&
 162         git update-ref refs/heads/outer/inner $head &&
 163         echo refs/heads/outer >expect &&
 164         git symbolic-ref HEAD >actual &&
 165         test_cmp expect actual
 166 '
 167
 168 test_expect_success 'symbolic-ref refuses invalid target for non-HEAD' '
 169         test_must_fail git symbolic-ref refs/heads/invalid foo..bar
 170 '
 171
 172 test_expect_success 'symbolic-ref allows top-level target for non-HEAD' '
 173         git symbolic-ref refs/heads/top-level ORIG_HEAD &&
 174         git update-ref ORIG_HEAD HEAD &&
 175         test_cmp_rev top-level HEAD
 176 '
 177
 178 test_expect_success 'symbolic-ref pointing at another' '
 179         git update-ref refs/heads/maint-2.37 HEAD &&
 180         git symbolic-ref refs/heads/maint refs/heads/maint-2.37 &&
 181         git checkout maint &&
 182
 183         git symbolic-ref HEAD >actual &&
 184         echo refs/heads/maint-2.37 >expect &&
 185         test_cmp expect actual &&
 186
 187         git symbolic-ref --no-recurse HEAD >actual &&
 188         echo refs/heads/maint >expect &&
 189         test_cmp expect actual
 190 '
 191
 192 test_expect_success 'symbolic-ref --short handles complex utf8 case' '
 193         name="测试-加-增加-加-增加" &&
 194         git symbolic-ref TEST_SYMREF "refs/heads/$name" &&
 195         # In the real world, we saw problems with this case only
 196         # when the locale includes UTF-8. Set it here to try to make things as
 197         # hard as possible for us to pass, but in practice we should do the
 198         # right thing regardless (and of course some platforms may not even
 199         # have this locale).
 200         LC_ALL=en_US.UTF-8 git symbolic-ref --short TEST_SYMREF >actual &&
 201         echo "$name" >expect &&
 202         test_cmp expect actual
 203 '
 204
 205 test_expect_success 'symbolic-ref --short handles name with suffix' '
 206         git symbolic-ref TEST_SYMREF "refs/remotes/origin/HEAD" &&
 207         git symbolic-ref --short TEST_SYMREF >actual &&
 208         echo "origin" >expect &&
 209         test_cmp expect actual
 210 '
 211
 212 test_expect_success 'symbolic-ref --short handles almost-matching name' '
 213         git symbolic-ref TEST_SYMREF "refs/headsXfoo" &&
 214         git symbolic-ref --short TEST_SYMREF >actual &&
 215         echo "headsXfoo" >expect &&
 216         test_cmp expect actual
 217 '
 218
 219 test_expect_success 'symbolic-ref --short handles name with percent' '
 220         git symbolic-ref TEST_SYMREF "refs/heads/%foo" &&
 221         git symbolic-ref --short TEST_SYMREF >actual &&
 222         echo "%foo" >expect &&
 223         test_cmp expect actual
 224 '
 225
 226 test_done