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-rwxr-xr-xt/t3432-rebase-fast-forward.sh141
1 files changed, 141 insertions, 0 deletions
diff --git a/t/t3432-rebase-fast-forward.sh b/t/t3432-rebase-fast-forward.sh
new file mode 100755
index 0000000..5086e14
--- /dev/null
+++ b/t/t3432-rebase-fast-forward.sh
@@ -0,0 +1,141 @@
+#!/bin/sh
+#
+# Copyright (c) 2019 Denton Liu
+#
+
+test_description='ensure rebase fast-forwards commits when possible'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+test_expect_success setup '
+ test_commit A &&
+ test_commit B &&
+ test_commit C &&
+ test_commit D &&
+ git checkout -t -b side
+'
+
+test_rebase_same_head () {
+ status_n="$1" &&
+ shift &&
+ what_n="$1" &&
+ shift &&
+ cmp_n="$1" &&
+ shift &&
+ status_f="$1" &&
+ shift &&
+ what_f="$1" &&
+ shift &&
+ cmp_f="$1" &&
+ shift &&
+ test_rebase_same_head_ $status_n $what_n $cmp_n 0 " --apply" "$*" &&
+ test_rebase_same_head_ $status_f $what_f $cmp_f 0 " --apply --no-ff" "$*"
+ test_rebase_same_head_ $status_n $what_n $cmp_n 0 " --merge" "$*" &&
+ test_rebase_same_head_ $status_f $what_f $cmp_f 0 " --merge --no-ff" "$*"
+ test_rebase_same_head_ $status_n $what_n $cmp_n 1 " --merge" "$*" &&
+ test_rebase_same_head_ $status_f $what_f $cmp_f 1 " --merge --no-ff" "$*"
+}
+
+test_rebase_same_head_ () {
+ status="$1" &&
+ shift &&
+ what="$1" &&
+ shift &&
+ cmp="$1" &&
+ shift &&
+ abbreviate="$1" &&
+ shift &&
+ flag="$1"
+ shift &&
+ if test $abbreviate -eq 1
+ then
+ msg="git rebase$flag $* (rebase.abbreviateCommands = true) with $changes is $what with $cmp HEAD"
+ else
+ msg="git rebase$flag $* with $changes is $what with $cmp HEAD"
+ fi &&
+ test_expect_$status "$msg" "
+ if test $abbreviate -eq 1
+ then
+ test_config rebase.abbreviateCommands true
+ fi &&
+ oldhead=\$(git rev-parse HEAD) &&
+ test_when_finished 'git reset --hard \$oldhead' &&
+ git reflog HEAD >expect &&
+ git rebase$flag $* >stdout &&
+ git reflog HEAD >actual &&
+ if test $what = work
+ then
+ old=\$(wc -l <expect) &&
+ test_line_count '-gt' \$old actual
+ elif test $what = noop
+ then
+ test_cmp expect actual
+ fi &&
+ newhead=\$(git rev-parse HEAD) &&
+ if test $cmp = same
+ then
+ test_cmp_rev \$oldhead \$newhead
+ elif test $cmp = diff
+ then
+ test_cmp_rev ! \$oldhead \$newhead
+ fi
+ "
+}
+
+changes='no changes'
+test_rebase_same_head success noop same success work same
+test_rebase_same_head success noop same success work same main
+test_rebase_same_head success noop same success work diff --onto B B
+test_rebase_same_head success noop same success work diff --onto B... B
+test_rebase_same_head success noop same success work same --onto main... main
+test_rebase_same_head success noop same success work same --keep-base main
+test_rebase_same_head success noop same success work same --keep-base
+test_rebase_same_head success noop same success work same --no-fork-point
+test_rebase_same_head success noop same success work same --keep-base --no-fork-point
+test_rebase_same_head success noop same success work same --fork-point main
+test_rebase_same_head success noop same success work diff --fork-point --onto B B
+test_rebase_same_head success noop same success work diff --fork-point --onto B... B
+test_rebase_same_head success noop same success work same --fork-point --onto main... main
+test_rebase_same_head success noop same success work same --keep-base --keep-base main
+
+test_expect_success 'add work same to side' '
+ test_commit E
+'
+
+changes='our changes'
+test_rebase_same_head success noop same success work same
+test_rebase_same_head success noop same success work same main
+test_rebase_same_head success noop same success work diff --onto B B
+test_rebase_same_head success noop same success work diff --onto B... B
+test_rebase_same_head success noop same success work same --onto main... main
+test_rebase_same_head success noop same success work same --keep-base main
+test_rebase_same_head success noop same success work same --keep-base
+test_rebase_same_head success noop same success work same --no-fork-point
+test_rebase_same_head success noop same success work same --keep-base --no-fork-point
+test_rebase_same_head success noop same success work same --fork-point main
+test_rebase_same_head success noop same success work diff --fork-point --onto B B
+test_rebase_same_head success noop same success work diff --fork-point --onto B... B
+test_rebase_same_head success noop same success work same --fork-point --onto main... main
+test_rebase_same_head success noop same success work same --fork-point --keep-base main
+
+test_expect_success 'add work same to upstream' '
+ git checkout main &&
+ test_commit F &&
+ git checkout side
+'
+
+changes='our and their changes'
+test_rebase_same_head success noop same success work diff --onto B B
+test_rebase_same_head success noop same success work diff --onto B... B
+test_rebase_same_head success noop same success work diff --onto main... main
+test_rebase_same_head success noop same success work diff --keep-base main
+test_rebase_same_head success noop same success work diff --keep-base
+test_rebase_same_head failure work same success work diff --fork-point --onto B B
+test_rebase_same_head failure work same success work diff --fork-point --onto B... B
+test_rebase_same_head success noop same success work diff --fork-point --onto main... main
+test_rebase_same_head success noop same success work diff --fork-point --keep-base main
+
+test_done