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-rwxr-xr-xt/t4150-am.sh107
1 files changed, 107 insertions, 0 deletions
diff --git a/t/t4150-am.sh b/t/t4150-am.sh
index 103cd39148..6caff0ca39 100755
--- a/t/t4150-am.sh
+++ b/t/t4150-am.sh
@@ -196,6 +196,12 @@ test_expect_success setup '
git format-patch -M --stdout lorem^ >rename-add.patch &&
+ git checkout -b empty-commit &&
+ git commit -m "empty commit" --allow-empty &&
+
+ : >empty.patch &&
+ git format-patch --always --stdout empty-commit^ >empty-commit.patch &&
+
# reset time
sane_unset test_tick &&
test_tick
@@ -1152,4 +1158,105 @@ test_expect_success 'apply binary blob in partial clone' '
git -C client am ../patch
'
+test_expect_success 'an empty input file is error regardless of --empty option' '
+ test_when_finished "git am --abort || :" &&
+ test_must_fail git am --empty=drop empty.patch 2>actual &&
+ echo "Patch format detection failed." >expected &&
+ test_cmp expected actual
+'
+
+test_expect_success 'invalid when passing the --empty option alone' '
+ test_when_finished "git am --abort || :" &&
+ git checkout empty-commit^ &&
+ test_must_fail git am --empty empty-commit.patch 2>err &&
+ echo "error: Invalid value for --empty: empty-commit.patch" >expected &&
+ test_cmp expected err
+'
+
+test_expect_success 'a message without a patch is an error (default)' '
+ test_when_finished "git am --abort || :" &&
+ test_must_fail git am empty-commit.patch >err &&
+ grep "Patch is empty" err
+'
+
+test_expect_success 'a message without a patch is an error where an explicit "--empty=stop" is given' '
+ test_when_finished "git am --abort || :" &&
+ test_must_fail git am --empty=stop empty-commit.patch >err &&
+ grep "Patch is empty." err
+'
+
+test_expect_success 'a message without a patch will be skipped when "--empty=drop" is given' '
+ git am --empty=drop empty-commit.patch >output &&
+ git rev-parse empty-commit^ >expected &&
+ git rev-parse HEAD >actual &&
+ test_cmp expected actual &&
+ grep "Skipping: empty commit" output
+'
+
+test_expect_success 'record as an empty commit when meeting e-mail message that lacks a patch' '
+ git am --empty=keep empty-commit.patch >output &&
+ test_path_is_missing .git/rebase-apply &&
+ git show empty-commit --format="%B" >expected &&
+ git show HEAD --format="%B" >actual &&
+ grep -f actual expected &&
+ grep "Creating an empty commit: empty commit" output
+'
+
+test_expect_success 'skip an empty patch in the middle of an am session' '
+ git checkout empty-commit^ &&
+ test_must_fail git am empty-commit.patch >err &&
+ grep "Patch is empty." err &&
+ grep "To record the empty patch as an empty commit, run \"git am --allow-empty\"." err &&
+ git am --skip &&
+ test_path_is_missing .git/rebase-apply &&
+ git rev-parse empty-commit^ >expected &&
+ git rev-parse HEAD >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'record an empty patch as an empty commit in the middle of an am session' '
+ git checkout empty-commit^ &&
+ test_must_fail git am empty-commit.patch >err &&
+ grep "Patch is empty." err &&
+ grep "To record the empty patch as an empty commit, run \"git am --allow-empty\"." err &&
+ git am --allow-empty >output &&
+ grep "No changes - recorded it as an empty commit." output &&
+ test_path_is_missing .git/rebase-apply &&
+ git show empty-commit --format="%B" >expected &&
+ git show HEAD --format="%B" >actual &&
+ grep -f actual expected
+'
+
+test_expect_success 'create an non-empty commit when the index IS changed though "--allow-empty" is given' '
+ git checkout empty-commit^ &&
+ test_must_fail git am empty-commit.patch >err &&
+ : >empty-file &&
+ git add empty-file &&
+ git am --allow-empty &&
+ git show empty-commit --format="%B" >expected &&
+ git show HEAD --format="%B" >actual &&
+ grep -f actual expected &&
+ git diff HEAD^..HEAD --name-only
+'
+
+test_expect_success 'cannot create empty commits when there is a clean index due to merge conflicts' '
+ test_when_finished "git am --abort || :" &&
+ git rev-parse HEAD >expected &&
+ test_must_fail git am seq.patch &&
+ test_must_fail git am --allow-empty >err &&
+ ! grep "To record the empty patch as an empty commit, run \"git am --allow-empty\"." err &&
+ git rev-parse HEAD >actual &&
+ test_cmp actual expected
+'
+
+test_expect_success 'cannot create empty commits when there is unmerged index due to merge conflicts' '
+ test_when_finished "git am --abort || :" &&
+ git rev-parse HEAD >expected &&
+ test_must_fail git am -3 seq.patch &&
+ test_must_fail git am --allow-empty >err &&
+ ! grep "To record the empty patch as an empty commit, run \"git am --allow-empty\"." err &&
+ git rev-parse HEAD >actual &&
+ test_cmp actual expected
+'
+
test_done