# \
# B2 <-- origin/topic
#
-# In both cases, 'topic' is rebased onto 'origin/topic'.
+# Clone 3 (no-ff merge):
+#
+# A1--A2--B3 <-- origin/master
+# \
+# B1------M <-- topic
+# \ /
+# \--A3 <-- topic2
+# \
+# B2 <-- origin/topic
+#
+# Clone 4 (merge using second parent as base):
+#
+# A1--A2--B3 <-- origin/master
+# \
+# B1--A3--M <-- topic
+# \ /
+# \--A4 <-- topic2
+# \
+# B2 <-- origin/topic
test_expect_success 'setup for merge-preserving rebase' \
'echo First > A &&
git merge origin/master
) &&
+ git clone ./. clone4 &&
+ (
+ cd clone4 &&
+ git checkout -b topic origin/topic &&
+ git merge origin/master
+ ) &&
+
echo Fifth > B &&
git add B &&
git commit -m "Add different B" &&
git commit -m "Merge origin/master into topic"
) &&
+ git clone ./. clone3 &&
+ (
+ cd clone3 &&
+ git checkout -b topic2 origin/topic &&
+ echo Sixth > A &&
+ git commit -a -m "Modify A3" &&
+ git checkout -b topic origin/topic &&
+ git merge --no-ff topic2
+ ) &&
+
git checkout topic &&
echo Fourth >> B &&
git commit -a -m "Modify B2"
)
'
+test_expect_success 'rebase -p preserves no-ff merges' '
+ (
+ cd clone3 &&
+ git fetch &&
+ git rebase -p origin/topic &&
+ test 3 = $(git rev-list --all --pretty=oneline | grep "Modify A" | wc -l) &&
+ test 1 = $(git rev-list --all --pretty=oneline | grep "Merge branch" | wc -l)
+ )
+'
+
+test_expect_success 'rebase -p works when base inside second parent' '
+ (
+ cd clone4 &&
+ git fetch &&
+ git rebase -p HEAD^2 &&
+ test 1 = $(git rev-list --all --pretty=oneline | grep "Modify A" | wc -l) &&
+ test 1 = $(git rev-list --all --pretty=oneline | grep "Modify B" | wc -l) &&
+ test 1 = $(git rev-list --all --pretty=oneline | grep "Merge remote-tracking branch " | wc -l)
+ )
+'
+
test_done