t/t3414-rebase-preserve-onto.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2009 Greg Price
   4 #
   5
   6 test_description='git rebase -p should respect --onto
   7
   8 In a rebase with --onto, we should rewrite all the commits that
   9 aren'"'"'t on top of $ONTO, even if they are on top of $UPSTREAM.
  10 '
  11 . ./test-lib.sh
  12
  13 . ../lib-rebase.sh
  14
  15 # Set up branches like this:
  16 # A1---B1---E1---F1---G1
  17 #  \    \             /
  18 #   \    \--C1---D1--/
  19 #    H1
  20
  21 test_expect_success 'setup' '
  22         test_commit A1 &&
  23         test_commit B1 &&
  24         test_commit C1 &&
  25         test_commit D1 &&
  26         git reset --hard B1 &&
  27         test_commit E1 &&
  28         test_commit F1 &&
  29         test_merge G1 D1 &&
  30         git reset --hard A1 &&
  31         test_commit H1
  32 '
  33
  34 # Now rebase merge G1 from both branches' base B1, both should move:
  35 # A1---B1---E1---F1---G1
  36 #  \    \             /
  37 #   \    \--C1---D1--/
  38 #    \
  39 #     H1---E2---F2---G2
  40 #      \             /
  41 #       \--C2---D2--/
  42
  43 test_expect_success 'rebase from B1 onto H1' '
  44         git checkout G1 &&
  45         git rebase -p --onto H1 B1 &&
  46         test "$(git rev-parse HEAD^1^1^1)" = "$(git rev-parse H1)" &&
  47         test "$(git rev-parse HEAD^2^1^1)" = "$(git rev-parse H1)"
  48 '
  49
  50 # On the other hand if rebase from E1 which is within one branch,
  51 # then the other branch stays:
  52 # A1---B1---E1---F1---G1
  53 #  \    \             /
  54 #   \    \--C1---D1--/
  55 #    \             \
  56 #     H1-----F3-----G3
  57
  58 test_expect_success 'rebase from E1 onto H1' '
  59         git checkout G1 &&
  60         git rebase -p --onto H1 E1 &&
  61         test "$(git rev-parse HEAD^1^1)" = "$(git rev-parse H1)" &&
  62         test "$(git rev-parse HEAD^2)" = "$(git rev-parse D1)"
  63 '
  64
  65 # And the same if we rebase from a commit in the second-parent branch.
  66 # A1---B1---E1---F1----G1
  67 #  \    \          \   /
  68 #   \    \--C1---D1-\-/
  69 #    \               \
  70 #     H1------D3------G4
  71
  72 test_expect_success 'rebase from C1 onto H1' '
  73         git checkout G1 &&
  74         git rev-list --first-parent --pretty=oneline C1..G1 &&
  75         git rebase -p --onto H1 C1 &&
  76         test "$(git rev-parse HEAD^2^1)" = "$(git rev-parse H1)" &&
  77         test "$(git rev-parse HEAD^1)" = "$(git rev-parse F1)"
  78 '
  79
  80 test_done