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-rwxr-xr-xt/t3421-rebase-topology-linear.sh359
1 files changed, 359 insertions, 0 deletions
diff --git a/t/t3421-rebase-topology-linear.sh b/t/t3421-rebase-topology-linear.sh
new file mode 100755
index 0000000..62d86d5
--- /dev/null
+++ b/t/t3421-rebase-topology-linear.sh
@@ -0,0 +1,359 @@
+#!/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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success --fork-point
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success --fork-point
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success --fork-point
+test_run_rebase success -m
+test_run_rebase success -i
+
+# 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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+# 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 $* keeps begin-empty commits" "
+ reset_rebase &&
+ git rebase $* j l &&
+ test_cmp_rev c HEAD~4 &&
+ test_linear_range 'j d k l' c..
+ "
+}
+test_run_rebase failure --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+test_run_rebase () {
+ result=$1
+ shift
+ test_expect_$result "rebase $* --no-keep-empty drops begin-empty commits" "
+ reset_rebase &&
+ git rebase $* --no-keep-empty c l &&
+ test_cmp_rev c HEAD~2 &&
+ test_linear_range 'd l' c..
+ "
+}
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 -m
+test_run_rebase success -i
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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 --apply
+test_run_rebase success -m
+test_run_rebase success -i
+
+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_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_done
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 12:16:04 +0000