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 $(git rev-parse HEAD)
  33 '
  34 reset_to_sane
  35
  36 test_expect_success 'symbolic-ref deletes HEAD' '
  37         git symbolic-ref -d HEAD &&
  38         test_path_is_file .git/refs/heads/foo &&
  39         test_path_is_missing .git/HEAD
  40 '
  41 reset_to_sane
  42
  43 test_expect_success 'symbolic-ref deletes dangling HEAD' '
  44         git symbolic-ref HEAD refs/heads/missing &&
  45         git symbolic-ref -d HEAD &&
  46         test_path_is_missing .git/refs/heads/missing &&
  47         test_path_is_missing .git/HEAD
  48 '
  49 reset_to_sane
  50
  51 test_expect_success 'symbolic-ref fails to delete missing FOO' '
  52         echo "fatal: Cannot delete FOO, not a symbolic ref" >expect &&
  53         test_must_fail git symbolic-ref -d FOO >actual 2>&1 &&
  54         test_cmp expect actual
  55 '
  56 reset_to_sane
  57
  58 test_expect_success 'symbolic-ref fails to delete real ref' '
  59         echo "fatal: Cannot delete refs/heads/foo, not a symbolic ref" >expect &&
  60         test_must_fail git symbolic-ref -d refs/heads/foo >actual 2>&1 &&
  61         test_path_is_file .git/refs/heads/foo &&
  62         test_cmp expect actual
  63 '
  64 reset_to_sane
  65
  66 test_expect_success 'create large ref name' '
  67         # make 256+ character ref; some systems may not handle that,
  68         # so be gentle
  69         long=0123456789abcdef &&
  70         long=$long/$long/$long/$long &&
  71         long=$long/$long/$long/$long &&
  72         long_ref=refs/heads/$long &&
  73         tree=$(git write-tree) &&
  74         commit=$(echo foo | git commit-tree $tree) &&
  75         if git update-ref $long_ref $commit; then
  76                 test_set_prereq LONG_REF
  77         else
  78                 echo >&2 "long refs not supported"
  79         fi
  80 '
  81
  82 test_expect_success LONG_REF 'symbolic-ref can point to large ref name' '
  83         git symbolic-ref HEAD $long_ref &&
  84         echo $long_ref >expect &&
  85         git symbolic-ref HEAD >actual &&
  86         test_cmp expect actual
  87 '
  88
  89 test_expect_success LONG_REF 'we can parse long symbolic ref' '
  90         echo $commit >expect &&
  91         git rev-parse --verify HEAD >actual &&
  92         test_cmp expect actual
  93 '
  94
  95 test_expect_success 'symbolic-ref reports failure in exit code' '
  96         test_when_finished "rm -f .git/HEAD.lock" &&
  97         >.git/HEAD.lock &&
  98         test_must_fail git symbolic-ref HEAD refs/heads/whatever
  99 '
 100
 101 test_expect_success 'symbolic-ref writes reflog entry' '
 102         git checkout -b log1 &&
 103         test_commit one &&
 104         git checkout -b log2  &&
 105         test_commit two &&
 106         git checkout --orphan orphan &&
 107         git symbolic-ref -m create HEAD refs/heads/log1 &&
 108         git symbolic-ref -m update HEAD refs/heads/log2 &&
 109         cat >expect <<-\EOF &&
 110         update
 111         create
 112         EOF
 113         git log --format=%gs -g -2 >actual &&
 114         test_cmp expect actual
 115 '
 116
 117 test_expect_success 'symbolic-ref does not create ref d/f conflicts' '
 118         git checkout -b df &&
 119         test_commit df &&
 120         test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df &&
 121         git pack-refs --all --prune &&
 122         test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df
 123 '
 124
 125 test_expect_success 'symbolic-ref handles existing pointer to invalid name' '
 126         head=$(git rev-parse HEAD) &&
 127         git symbolic-ref HEAD refs/heads/outer &&
 128         git update-ref refs/heads/outer/inner $head &&
 129         git symbolic-ref HEAD refs/heads/unrelated
 130 '
 131
 132 test_done