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-rwxr-xr-xt/t4014-format-patch.sh39
1 files changed, 39 insertions, 0 deletions
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index edf07eefd4..1bfd868f6d 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -1507,4 +1507,43 @@ test_expect_success 'format-patch --base errors out when base commit is not ance
test_cmp expected actual
'
+test_expect_success 'format-patch --base=auto' '
+ git checkout -b upstream master &&
+ git checkout -b local upstream &&
+ git branch --set-upstream-to=upstream &&
+ test_commit N1 &&
+ test_commit N2 &&
+ git format-patch --stdout --base=auto -2 >patch &&
+ grep "^base-commit:" patch >actual &&
+ echo "base-commit: $(git rev-parse upstream)" >expected &&
+ test_cmp expected actual
+'
+
+test_expect_success 'format-patch errors out when history involves criss-cross' '
+ # setup criss-cross history
+ #
+ # B---M1---D
+ # / \ /
+ # A X
+ # \ / \
+ # C---M2---E
+ #
+ git checkout master &&
+ test_commit A &&
+ git checkout -b xb master &&
+ test_commit B &&
+ git checkout -b xc master &&
+ test_commit C &&
+ git checkout -b xbc xb -- &&
+ git merge xc &&
+ git checkout -b xcb xc -- &&
+ git branch --set-upstream-to=xbc &&
+ git merge xb &&
+ git checkout xbc &&
+ test_commit D &&
+ git checkout xcb &&
+ test_commit E &&
+ test_must_fail git format-patch --base=auto -1
+'
+
test_done