t/t1401-symbolic-ref.sh

   1 #!/bin/sh
   2
   3 test_description='basic symbolic-ref tests'
   4 . ./test-lib.sh
   5
   6 # If the tests munging HEAD fail, they can break detection of
   7 # the git repo, meaning that further tests will operate on
   8 # the surrounding git repo instead of the trash directory.
   9 reset_to_sane() {
  10         echo ref: refs/heads/foo >.git/HEAD
  11 }
  12
  13 test_expect_success 'symbolic-ref writes HEAD' '
  14         git symbolic-ref HEAD refs/heads/foo &&
  15         echo ref: refs/heads/foo >expect &&
  16         test_cmp expect .git/HEAD
  17 '
  18
  19 test_expect_success 'symbolic-ref reads HEAD' '
  20         echo refs/heads/foo >expect &&
  21         git symbolic-ref HEAD >actual &&
  22         test_cmp expect actual
  23 '
  24
  25 test_expect_success 'symbolic-ref refuses non-ref for HEAD' '
  26         test_must_fail git symbolic-ref HEAD foo
  27 '
  28 reset_to_sane
  29
  30 test_expect_success 'symbolic-ref refuses bare sha1' '
  31         echo content >file && git add file && git commit -m one &&
  32         test_must_fail git symbolic-ref HEAD $(git rev-parse HEAD)
  33 '
  34 reset_to_sane
  35
  36 test_expect_success 'HEAD cannot be removed' '
  37         test_must_fail git symbolic-ref -d HEAD
  38 '
  39
  40 reset_to_sane
  41
  42 test_expect_success 'symbolic-ref can be deleted' '
  43         git symbolic-ref NOTHEAD refs/heads/foo &&
  44         git symbolic-ref -d NOTHEAD &&
  45         test_path_is_file .git/refs/heads/foo &&
  46         test_path_is_missing .git/NOTHEAD
  47 '
  48 reset_to_sane
  49
  50 test_expect_success 'symbolic-ref can delete dangling symref' '
  51         git symbolic-ref NOTHEAD refs/heads/missing &&
  52         git symbolic-ref -d NOTHEAD &&
  53         test_path_is_missing .git/refs/heads/missing &&
  54         test_path_is_missing .git/NOTHEAD
  55 '
  56 reset_to_sane
  57
  58 test_expect_success 'symbolic-ref fails to delete missing FOO' '
  59         echo "fatal: Cannot delete FOO, not a symbolic ref" >expect &&
  60         test_must_fail git symbolic-ref -d FOO >actual 2>&1 &&
  61         test_cmp expect actual
  62 '
  63 reset_to_sane
  64
  65 test_expect_success 'symbolic-ref fails to delete real ref' '
  66         echo "fatal: Cannot delete refs/heads/foo, not a symbolic ref" >expect &&
  67         test_must_fail git symbolic-ref -d refs/heads/foo >actual 2>&1 &&
  68         git rev-parse --verify refs/heads/foo &&
  69         test_cmp expect actual
  70 '
  71 reset_to_sane
  72
  73 test_expect_success 'create large ref name' '
  74         # make 256+ character ref; some systems may not handle that,
  75         # so be gentle
  76         long=0123456789abcdef &&
  77         long=$long/$long/$long/$long &&
  78         long=$long/$long/$long/$long &&
  79         long_ref=refs/heads/$long &&
  80         tree=$(git write-tree) &&
  81         commit=$(echo foo | git commit-tree $tree) &&
  82         if git update-ref $long_ref $commit; then
  83                 test_set_prereq LONG_REF
  84         else
  85                 echo >&2 "long refs not supported"
  86         fi
  87 '
  88
  89 test_expect_success LONG_REF 'symbolic-ref can point to large ref name' '
  90         git symbolic-ref HEAD $long_ref &&
  91         echo $long_ref >expect &&
  92         git symbolic-ref HEAD >actual &&
  93         test_cmp expect actual
  94 '
  95
  96 test_expect_success LONG_REF 'we can parse long symbolic ref' '
  97         echo $commit >expect &&
  98         git rev-parse --verify HEAD >actual &&
  99         test_cmp expect actual
 100 '
 101
 102 test_expect_success 'symbolic-ref reports failure in exit code' '
 103         test_when_finished "rm -f .git/HEAD.lock" &&
 104         >.git/HEAD.lock &&
 105         test_must_fail git symbolic-ref HEAD refs/heads/whatever
 106 '
 107
 108 test_expect_success 'symbolic-ref writes reflog entry' '
 109         git checkout -b log1 &&
 110         test_commit one &&
 111         git checkout -b log2  &&
 112         test_commit two &&
 113         git checkout --orphan orphan &&
 114         git symbolic-ref -m create HEAD refs/heads/log1 &&
 115         git symbolic-ref -m update HEAD refs/heads/log2 &&
 116         cat >expect <<-\EOF &&
 117         update
 118         create
 119         EOF
 120         git log --format=%gs -g -2 >actual &&
 121         test_cmp expect actual
 122 '
 123
 124 test_expect_success 'symbolic-ref does not create ref d/f conflicts' '
 125         git checkout -b df &&
 126         test_commit df &&
 127         test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df &&
 128         git pack-refs --all --prune &&
 129         test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df
 130 '
 131
 132 test_expect_success 'symbolic-ref can overwrite pointer to invalid name' '
 133         test_when_finished reset_to_sane &&
 134         head=$(git rev-parse HEAD) &&
 135         git symbolic-ref HEAD refs/heads/outer &&
 136         test_when_finished "git update-ref -d refs/heads/outer/inner" &&
 137         git update-ref refs/heads/outer/inner $head &&
 138         git symbolic-ref HEAD refs/heads/unrelated
 139 '
 140
 141 test_expect_success 'symbolic-ref can resolve d/f name (EISDIR)' '
 142         test_when_finished reset_to_sane &&
 143         head=$(git rev-parse HEAD) &&
 144         git symbolic-ref HEAD refs/heads/outer/inner &&
 145         test_when_finished "git update-ref -d refs/heads/outer" &&
 146         git update-ref refs/heads/outer $head &&
 147         echo refs/heads/outer/inner >expect &&
 148         git symbolic-ref HEAD >actual &&
 149         test_cmp expect actual
 150 '
 151
 152 test_expect_success 'symbolic-ref can resolve d/f name (ENOTDIR)' '
 153         test_when_finished reset_to_sane &&
 154         head=$(git rev-parse HEAD) &&
 155         git symbolic-ref HEAD refs/heads/outer &&
 156         test_when_finished "git update-ref -d refs/heads/outer/inner" &&
 157         git update-ref refs/heads/outer/inner $head &&
 158         echo refs/heads/outer >expect &&
 159         git symbolic-ref HEAD >actual &&
 160         test_cmp expect actual
 161 '
 162
 163 test_done