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 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
  11 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
  12
  13 . ./test-lib.sh
  14
  15 TEST_FILE=foo
  16
  17 test_expect_success 'Setup' '
  18         echo "Initial" >"$TEST_FILE" &&
  19         git add "$TEST_FILE" &&
  20         git commit -m "First Commit" &&
  21         test_tick &&
  22         echo "State 1" >>"$TEST_FILE" &&
  23         git add "$TEST_FILE" &&
  24         test_tick &&
  25         git commit -m "Second Commit"
  26 '
  27
  28 test_expect_success '--orphan creates a new orphan branch from HEAD' '
  29         git checkout --orphan alpha &&
  30         test_must_fail git rev-parse --verify HEAD &&
  31         test "refs/heads/alpha" = "$(git symbolic-ref HEAD)" &&
  32         test_tick &&
  33         git commit -m "Third Commit" &&
  34         test_must_fail git rev-parse --verify HEAD^ &&
  35         git diff-tree --quiet main alpha
  36 '
  37
  38 test_expect_success '--orphan creates a new orphan branch from <start_point>' '
  39         git checkout main &&
  40         git checkout --orphan beta main^ &&
  41         test_must_fail git rev-parse --verify HEAD &&
  42         test "refs/heads/beta" = "$(git symbolic-ref HEAD)" &&
  43         test_tick &&
  44         git commit -m "Fourth Commit" &&
  45         test_must_fail git rev-parse --verify HEAD^ &&
  46         git diff-tree --quiet main^ beta
  47 '
  48
  49 test_expect_success '--orphan must be rejected with -b' '
  50         git checkout main &&
  51         test_must_fail git checkout --orphan new -b newer &&
  52         test refs/heads/main = "$(git symbolic-ref HEAD)"
  53 '
  54
  55 test_expect_success '--orphan must be rejected with -t' '
  56         git checkout main &&
  57         test_must_fail git checkout --orphan new -t main &&
  58         test refs/heads/main = "$(git symbolic-ref HEAD)"
  59 '
  60
  61 test_expect_success '--orphan ignores branch.autosetupmerge' '
  62         git checkout main &&
  63         git config branch.autosetupmerge always &&
  64         git checkout --orphan gamma &&
  65         test_cmp_config "" --default "" branch.gamma.merge &&
  66         test refs/heads/gamma = "$(git symbolic-ref HEAD)" &&
  67         test_must_fail git rev-parse --verify HEAD^ &&
  68         git checkout main &&
  69         git config branch.autosetupmerge inherit &&
  70         git checkout --orphan eta &&
  71         test_cmp_config "" --default "" branch.eta.merge &&
  72         test_cmp_config "" --default "" branch.eta.remote &&
  73         echo refs/heads/eta >expected &&
  74         git symbolic-ref HEAD >actual &&
  75         test_cmp expected actual &&
  76         test_must_fail git rev-parse --verify HEAD^
  77 '
  78
  79 test_expect_success '--orphan makes reflog by default' '
  80         git checkout main &&
  81         git config --unset core.logAllRefUpdates &&
  82         git checkout --orphan delta &&
  83         test_must_fail git rev-parse --verify delta@{0} &&
  84         git commit -m Delta &&
  85         git rev-parse --verify delta@{0}
  86 '
  87
  88 test_expect_success REFFILES '--orphan does not make reflog when core.logAllRefUpdates = false' '
  89         git checkout main &&
  90         git config core.logAllRefUpdates false &&
  91         git checkout --orphan epsilon &&
  92         test_must_fail git rev-parse --verify epsilon@{0} &&
  93         git commit -m Epsilon &&
  94         test_must_fail git rev-parse --verify epsilon@{0}
  95 '
  96
  97 test_expect_success '--orphan with -l makes reflog when core.logAllRefUpdates = false' '
  98         git checkout main &&
  99         git checkout -l --orphan zeta &&
 100         test_must_fail git rev-parse --verify zeta@{0} &&
 101         git commit -m Zeta &&
 102         git rev-parse --verify zeta@{0}
 103 '
 104
 105 test_expect_success 'giving up --orphan not committed when -l and core.logAllRefUpdates = false deletes reflog' '
 106         git checkout main &&
 107         git checkout -l --orphan eta &&
 108         test_must_fail git rev-parse --verify eta@{0} &&
 109         git checkout main &&
 110         test_must_fail git rev-parse --verify eta@{0}
 111 '
 112
 113 test_expect_success '--orphan is rejected with an existing name' '
 114         git checkout main &&
 115         test_must_fail git checkout --orphan main &&
 116         test refs/heads/main = "$(git symbolic-ref HEAD)"
 117 '
 118
 119 test_expect_success '--orphan refuses to switch if a merge is needed' '
 120         git checkout main &&
 121         git reset --hard &&
 122         echo local >>"$TEST_FILE" &&
 123         cat "$TEST_FILE" >"$TEST_FILE.saved" &&
 124         test_must_fail git checkout --orphan new main^ &&
 125         test refs/heads/main = "$(git symbolic-ref HEAD)" &&
 126         test_cmp "$TEST_FILE" "$TEST_FILE.saved" &&
 127         git diff-index --quiet --cached HEAD &&
 128         git reset --hard
 129 '
 130
 131 test_expect_success 'cannot --detach on an unborn branch' '
 132         git checkout main &&
 133         git checkout --orphan new &&
 134         test_must_fail git checkout --detach
 135 '
 136
 137 test_done