t/t2011-checkout-invalid-head.sh

   1 #!/bin/sh
   2
   3 test_description='checkout switching away from an invalid branch'
   4
   5 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   6 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   7
   8 . ./test-lib.sh
   9
  10 test_expect_success 'setup' '
  11         echo hello >world &&
  12         git add world &&
  13         git commit -m initial
  14 '
  15
  16 test_expect_success 'checkout should not start branch from a tree' '
  17         test_must_fail git checkout -b newbranch main^{tree}
  18 '
  19
  20 test_expect_success 'checkout main from invalid HEAD' '
  21         echo $ZERO_OID >.git/HEAD &&
  22         git checkout main --
  23 '
  24
  25 test_expect_success 'checkout notices failure to lock HEAD' '
  26         test_when_finished "rm -f .git/HEAD.lock" &&
  27         >.git/HEAD.lock &&
  28         test_must_fail git checkout -b other
  29 '
  30
  31 test_expect_success 'create ref directory/file conflict scenario' '
  32         git update-ref refs/heads/outer/inner main &&
  33
  34         # do not rely on symbolic-ref to get a known state,
  35         # as it may use the same code we are testing
  36         reset_to_df () {
  37                 echo "ref: refs/heads/outer" >.git/HEAD
  38         }
  39 '
  40
  41 test_expect_success 'checkout away from d/f HEAD (unpacked, to branch)' '
  42         reset_to_df &&
  43         git checkout main
  44 '
  45
  46 test_expect_success 'checkout away from d/f HEAD (unpacked, to detached)' '
  47         reset_to_df &&
  48         git checkout --detach main
  49 '
  50
  51 test_expect_success 'pack refs' '
  52         git pack-refs --all --prune
  53 '
  54
  55 test_expect_success 'checkout away from d/f HEAD (packed, to branch)' '
  56         reset_to_df &&
  57         git checkout main
  58 '
  59
  60 test_expect_success 'checkout away from d/f HEAD (packed, to detached)' '
  61         reset_to_df &&
  62         git checkout --detach main
  63 '
  64 test_done