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