t/t2017-checkout-orphan.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2010 Erick Mattos
   4 #
   5
   6 test_description='git checkout --orphan
   7
   8 Main Tests for --orphan functionality.'
   9
  10 . ./test-lib.sh
  11
  12 TEST_FILE=foo
  13
  14 test_expect_success 'Setup' '
  15         echo "Initial" >"$TEST_FILE" &&
  16         git add "$TEST_FILE" &&
  17         git commit -m "First Commit" &&
  18         test_tick &&
  19         echo "State 1" >>"$TEST_FILE" &&
  20         git add "$TEST_FILE" &&
  21         test_tick &&
  22         git commit -m "Second Commit"
  23 '
  24
  25 test_expect_success '--orphan creates a new orphan branch from HEAD' '
  26         git checkout --orphan alpha &&
  27         test_must_fail git rev-parse --verify HEAD &&
  28         test "refs/heads/alpha" = "$(git symbolic-ref HEAD)" &&
  29         test_tick &&
  30         git commit -m "Third Commit" &&
  31         test_must_fail git rev-parse --verify HEAD^ &&
  32         git diff-tree --quiet master alpha
  33 '
  34
  35 test_expect_success '--orphan creates a new orphan branch from <start_point>' '
  36         git checkout master &&
  37         git checkout --orphan beta master^ &&
  38         test_must_fail git rev-parse --verify HEAD &&
  39         test "refs/heads/beta" = "$(git symbolic-ref HEAD)" &&
  40         test_tick &&
  41         git commit -m "Fourth Commit" &&
  42         test_must_fail git rev-parse --verify HEAD^ &&
  43         git diff-tree --quiet master^ beta
  44 '
  45
  46 test_expect_success '--orphan must be rejected with -b' '
  47         git checkout master &&
  48         test_must_fail git checkout --orphan new -b newer &&
  49         test refs/heads/master = "$(git symbolic-ref HEAD)"
  50 '
  51
  52 test_expect_success '--orphan must be rejected with -t' '
  53         git checkout master &&
  54         test_must_fail git checkout --orphan new -t master &&
  55         test refs/heads/master = "$(git symbolic-ref HEAD)"
  56 '
  57
  58 test_expect_success '--orphan ignores branch.autosetupmerge' '
  59         git checkout master &&
  60         git config branch.autosetupmerge always &&
  61         git checkout --orphan gamma &&
  62         test -z "$(git config branch.gamma.merge)" &&
  63         test refs/heads/gamma = "$(git symbolic-ref HEAD)" &&
  64         test_must_fail git rev-parse --verify HEAD^
  65 '
  66
  67 test_expect_success '--orphan makes reflog by default' '
  68         git checkout master &&
  69         git config --unset core.logAllRefUpdates &&
  70         git checkout --orphan delta &&
  71         test_must_fail git rev-parse --verify delta@{0} &&
  72         git commit -m Delta &&
  73         git rev-parse --verify delta@{0}
  74 '
  75
  76 test_expect_success '--orphan does not make reflog when core.logAllRefUpdates = false' '
  77         git checkout master &&
  78         git config core.logAllRefUpdates false &&
  79         git checkout --orphan epsilon &&
  80         test_must_fail git rev-parse --verify epsilon@{0} &&
  81         git commit -m Epsilon &&
  82         test_must_fail git rev-parse --verify epsilon@{0}
  83 '
  84
  85 test_expect_success '--orphan with -l makes reflog when core.logAllRefUpdates = false' '
  86         git checkout master &&
  87         git checkout -l --orphan zeta &&
  88         test_must_fail git rev-parse --verify zeta@{0} &&
  89         git commit -m Zeta &&
  90         git rev-parse --verify zeta@{0}
  91 '
  92
  93 test_expect_success 'giving up --orphan not committed when -l and core.logAllRefUpdates = false deletes reflog' '
  94         git checkout master &&
  95         git checkout -l --orphan eta &&
  96         test_must_fail git rev-parse --verify eta@{0} &&
  97         git checkout master &&
  98         test_must_fail git rev-parse --verify eta@{0}
  99 '
 100
 101 test_expect_success '--orphan is rejected with an existing name' '
 102         git checkout master &&
 103         test_must_fail git checkout --orphan master &&
 104         test refs/heads/master = "$(git symbolic-ref HEAD)"
 105 '
 106
 107 test_expect_success '--orphan refuses to switch if a merge is needed' '
 108         git checkout master &&
 109         git reset --hard &&
 110         echo local >>"$TEST_FILE" &&
 111         cat "$TEST_FILE" >"$TEST_FILE.saved" &&
 112         test_must_fail git checkout --orphan new master^ &&
 113         test refs/heads/master = "$(git symbolic-ref HEAD)" &&
 114         test_cmp "$TEST_FILE" "$TEST_FILE.saved" &&
 115         git diff-index --quiet --cached HEAD &&
 116         git reset --hard
 117 '
 118
 119 test_expect_success 'cannot --detach on an unborn branch' '
 120         git checkout master &&
 121         git checkout --orphan new &&
 122         test_must_fail git checkout --detach
 123 '
 124
 125 test_done