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git-commit-vandalism/t/t3421-rebase-topology-linear.sh
Ævar Arnfjörð Bjarmason 6330209d7d rebase tests: test linear branch topology 
Add tests rebasing a linear branch topology to linear rebase tests
added in 2aad7cace2 ("add simple tests of consistency across rebase
types", 2013-06-06).

These tests are duplicates of two surrounding tests that do the same
with tags pointing to the same objects. Right now there's no change in
behavior being introduced, but as we'll see in a subsequent change
rebase can have different behaviors when working implicitly with
remote tracking branches.

While I'm at it add a --fork-point test, strictly speaking this is
redundant to the existing '' test, as no argument to rebase implies
--fork-point. But now it's easier to grep for tests that explicitly
stress --fork-point.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-27 15:33:40 -07:00

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#!/bin/sh
test_description='basic rebase topology tests'
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-rebase.sh
# a---b---c
# \
# d---e
test_expect_success 'setup' '
test_commit a &&
test_commit b &&
test_commit c &&
git checkout b &&
test_commit d &&
test_commit e
'
test_run_rebase () {
result=$1
shift
test_expect_$result "simple rebase $*" "
reset_rebase &&
git rebase $* c e &&
test_cmp_rev c HEAD~2 &&
test_linear_range 'd e' c..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_expect_success 'setup branches and remote tracking' '
git tag -l >tags &&
for tag in $(cat tags)
do
git branch branch-$tag $tag || return 1
done &&
git remote add origin "file://$PWD" &&
git fetch origin
'
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* is no-op if upstream is an ancestor" "
reset_rebase &&
git rebase $* b e &&
test_cmp_rev e HEAD
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* -f rewrites even if upstream is an ancestor" "
reset_rebase &&
git rebase $* -f b e &&
! test_cmp_rev e HEAD &&
test_cmp_rev b HEAD~2 &&
test_linear_range 'd e' b..
"
}
test_run_rebase success ''
test_run_rebase success --fork-point
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase failure -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* -f rewrites even if remote upstream is an ancestor" "
reset_rebase &&
git rebase $* -f branch-b branch-e &&
! test_cmp_rev branch-e origin/branch-e &&
test_cmp_rev branch-b HEAD~2 &&
test_linear_range 'd e' branch-b..
"
}
test_run_rebase success ''
test_run_rebase success --fork-point
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* fast-forwards from ancestor of upstream" "
reset_rebase &&
git rebase $* e b &&
test_cmp_rev e HEAD
"
}
test_run_rebase success ''
test_run_rebase success --fork-point
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
# f
# /
# a---b---c---g---h
# \
# d---gp--i
#
# gp = cherry-picked g
# h = reverted g
#
# Reverted patches are there for tests to be able to check if a commit
# that introduced the same change as another commit is
# dropped. Without reverted commits, we could get false positives
# because applying the patch succeeds, but simply results in no
# changes.
test_expect_success 'setup of linear history for range selection tests' '
git checkout c &&
test_commit g &&
revert h g &&
git checkout d &&
cherry_pick gp g &&
test_commit i &&
git checkout b &&
test_commit f
'
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* drops patches in upstream" "
reset_rebase &&
git rebase $* h i &&
test_cmp_rev h HEAD~2 &&
test_linear_range 'd i' h..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* can drop last patch if in upstream" "
reset_rebase &&
git rebase $* h gp &&
test_cmp_rev h HEAD^ &&
test_linear_range 'd' h..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* --onto drops patches in upstream" "
reset_rebase &&
git rebase $* --onto f h i &&
test_cmp_rev f HEAD~2 &&
test_linear_range 'd i' f..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* --onto does not drop patches in onto" "
reset_rebase &&
git rebase $* --onto h f i &&
test_cmp_rev h HEAD~3 &&
test_linear_range 'd gp i' h..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
# a---b---c---j!
# \
# d---k!--l
#
# ! = empty
test_expect_success 'setup of linear history for empty commit tests' '
git checkout c &&
make_empty j &&
git checkout d &&
make_empty k &&
test_commit l
'
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* drops empty commit" "
reset_rebase &&
git rebase $* c l &&
test_cmp_rev c HEAD~2 &&
test_linear_range 'd l' c..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* --keep-empty" "
reset_rebase &&
git rebase $* --keep-empty c l &&
test_cmp_rev c HEAD~3 &&
test_linear_range 'd k l' c..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase failure -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* --keep-empty keeps empty even if already in upstream" "
reset_rebase &&
git rebase $* --keep-empty j l &&
test_cmp_rev j HEAD~3 &&
test_linear_range 'd k l' j..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase failure -p
test_run_rebase success --rebase-merges
# m
# /
# a---b---c---g
#
# x---y---bp
#
# bp = cherry-picked b
# m = reverted b
#
# Reverted patches are there for tests to be able to check if a commit
# that introduced the same change as another commit is
# dropped. Without reverted commits, we could get false positives
# because applying the patch succeeds, but simply results in no
# changes.
test_expect_success 'setup of linear history for test involving root' '
git checkout b &&
revert m b &&
git checkout --orphan disjoint &&
git rm -rf . &&
test_commit x &&
test_commit y &&
cherry_pick bp b
'
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* --onto --root" "
reset_rebase &&
git rebase $* --onto c --root y &&
test_cmp_rev c HEAD~2 &&
test_linear_range 'x y' c..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* without --onto --root with disjoint history" "
reset_rebase &&
git rebase $* c y &&
test_cmp_rev c HEAD~2 &&
test_linear_range 'x y' c..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase failure -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* --onto --root drops patch in onto" "
reset_rebase &&
git rebase $* --onto m --root bp &&
test_cmp_rev m HEAD~2 &&
test_linear_range 'x y' m..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* --onto --root with merge-base does not go to root" "
reset_rebase &&
git rebase $* --onto m --root g &&
test_cmp_rev m HEAD~2 &&
test_linear_range 'c g' m..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase failure -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* without --onto --root with disjoint history drops patch in onto" "
reset_rebase &&
git rebase $* m bp &&
test_cmp_rev m HEAD~2 &&
test_linear_range 'x y' m..
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase failure -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* --root on linear history is a no-op" "
reset_rebase &&
git rebase $* --root c &&
test_cmp_rev c HEAD
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase failure -p
test_run_rebase () {
result=$1
shift
test_expect_$result "rebase $* -f --root on linear history causes re-write" "
reset_rebase &&
git rebase $* -f --root c &&
! test_cmp_rev a HEAD~2 &&
test_linear_range 'a b c' HEAD
"
}
test_run_rebase success ''
test_run_rebase success -m
test_run_rebase success -i
test_have_prereq !REBASE_P || test_run_rebase success -p
test_done
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