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         test_must_fail git symbolic-ref HEAD $(git rev-parse HEAD)
  37 '
  38
  39 reset_to_sane
  40
  41 test_expect_success 'HEAD cannot be removed' '
  42         test_must_fail git symbolic-ref -d HEAD
  43 '
  44
  45 reset_to_sane
  46
  47 test_expect_success 'symbolic-ref can be deleted' '
  48         git symbolic-ref NOTHEAD refs/heads/foo &&
  49         git symbolic-ref -d NOTHEAD &&
  50         git rev-parse refs/heads/foo &&
  51         test_must_fail git symbolic-ref NOTHEAD
  52 '
  53 reset_to_sane
  54
  55 test_expect_success 'symbolic-ref can delete dangling symref' '
  56         git symbolic-ref NOTHEAD refs/heads/missing &&
  57         git symbolic-ref -d NOTHEAD &&
  58         test_must_fail git rev-parse refs/heads/missing &&
  59         test_must_fail git symbolic-ref NOTHEAD
  60 '
  61 reset_to_sane
  62
  63 test_expect_success 'symbolic-ref fails to delete missing FOO' '
  64         echo "fatal: Cannot delete FOO, not a symbolic ref" >expect &&
  65         test_must_fail git symbolic-ref -d FOO >actual 2>&1 &&
  66         test_cmp expect actual
  67 '
  68 reset_to_sane
  69
  70 test_expect_success 'symbolic-ref fails to delete real ref' '
  71         echo "fatal: Cannot delete refs/heads/foo, not a symbolic ref" >expect &&
  72         test_must_fail git symbolic-ref -d refs/heads/foo >actual 2>&1 &&
  73         git rev-parse --verify refs/heads/foo &&
  74         test_cmp expect actual
  75 '
  76 reset_to_sane
  77
  78 test_expect_success 'create large ref name' '
  79         # make 256+ character ref; some systems may not handle that,
  80         # so be gentle
  81         long=0123456789abcdef &&
  82         long=$long/$long/$long/$long &&
  83         long=$long/$long/$long/$long &&
  84         long_ref=refs/heads/$long &&
  85         tree=$(git write-tree) &&
  86         commit=$(echo foo | git commit-tree $tree) &&
  87         if git update-ref $long_ref $commit; then
  88                 test_set_prereq LONG_REF
  89         else
  90                 echo >&2 "long refs not supported"
  91         fi
  92 '
  93
  94 test_expect_success LONG_REF 'symbolic-ref can point to large ref name' '
  95         git symbolic-ref HEAD $long_ref &&
  96         echo $long_ref >expect &&
  97         git symbolic-ref HEAD >actual &&
  98         test_cmp expect actual
  99 '
 100
 101 test_expect_success LONG_REF 'we can parse long symbolic ref' '
 102         echo $commit >expect &&
 103         git rev-parse --verify HEAD >actual &&
 104         test_cmp expect actual
 105 '
 106
 107 test_expect_success 'symbolic-ref reports failure in exit code' '
 108         test_when_finished "rm -f .git/HEAD.lock" &&
 109         >.git/HEAD.lock &&
 110         test_must_fail git symbolic-ref HEAD refs/heads/whatever
 111 '
 112
 113 test_expect_success 'symbolic-ref writes reflog entry' '
 114         git checkout -b log1 &&
 115         test_commit one &&
 116         git checkout -b log2  &&
 117         test_commit two &&
 118         git checkout --orphan orphan &&
 119         git symbolic-ref -m create HEAD refs/heads/log1 &&
 120         git symbolic-ref -m update HEAD refs/heads/log2 &&
 121         cat >expect <<-\EOF &&
 122         update
 123         create
 124         EOF
 125         git log --format=%gs -g -2 >actual &&
 126         test_cmp expect actual
 127 '
 128
 129 test_expect_success 'symbolic-ref does not create ref d/f conflicts' '
 130         git checkout -b df &&
 131         test_commit df &&
 132         test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df &&
 133         git pack-refs --all --prune &&
 134         test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df
 135 '
 136
 137 test_expect_success 'symbolic-ref can overwrite pointer to invalid name' '
 138         test_when_finished reset_to_sane &&
 139         head=$(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_done