doc/fast-import: clarify how content states are built

diff --git a/t/t7500-commit.sh b/t/t7500-commit.sh
index 9f5c3edb0392c321092e56e2bf46fd096f74cf75..1c908f4d3966cb9a2769465652981bef831f312d 100755 (executable)
--- a/t/t7500-commit.sh
+++ b/t/t7500-commit.sh
@@ -10,7 +10,12 @@ Tests for selected commit options.'
 . ./test-lib.sh
 
 commit_msg_is () {
-       test "`git log --pretty=format:%s%b -1`" = "$1"
+       expect=commit_msg_is.expect
+       actual=commit_msg_is.actual
+
+       printf "%s" "$(git log --pretty=format:%s%b -1)" >$expect &&
+       printf "%s" "$1" >$actual &&
+       test_i18ncmp $expect $actual
 }
 
 # A sanity check to see if commit is working at all.
@@ -23,13 +28,21 @@ test_expect_success 'a basic commit in an empty tree should succeed' '
 test_expect_success 'nonexistent template file should return error' '
        echo changes >> foo &&
        git add foo &&
-       test_must_fail git commit --template "$PWD"/notexist
+       (
+               GIT_EDITOR="echo hello >\"\$1\"" &&
+               export GIT_EDITOR &&
+               test_must_fail git commit --template "$PWD"/notexist
+       )
 '
 
 test_expect_success 'nonexistent template file in config should return error' '
        git config commit.template "$PWD"/notexist &&
-       test_must_fail git commit &&
-       git config --unset commit.template
+       test_when_finished "git config --unset commit.template" &&
+       (
+               GIT_EDITOR="echo hello >\"\$1\"" &&
+               export GIT_EDITOR &&
+               test_must_fail git commit
+       )
 '
 
 # From now on we'll use a template file that exists.
@@ -110,6 +123,20 @@ test_expect_success 'commit message from file should override template' '
        commit_msg_is "standard input msg"
 '
 
+cat >"$TEMPLATE" <<\EOF
+
+
+### template
+
+EOF
+test_expect_success 'commit message from template with whitespace issue' '
+       echo "content galore" >>foo &&
+       git add foo &&
+       GIT_EDITOR="$TEST_DIRECTORY"/t7500/add-whitespaced-content git commit \
+               --template "$TEMPLATE" &&
+       commit_msg_is "commit message"
+'
+
 test_expect_success 'using alternate GIT_INDEX_FILE (1)' '
 
        cp .git/index saved-index &&
@@ -193,4 +220,106 @@ test_expect_success 'commit -F overrides -t' '
        commit_msg_is "-F log"
 '
 
+test_expect_success 'Commit without message is allowed with --allow-empty-message' '
+       echo "more content" >>foo &&
+       git add foo &&
+       >empty &&
+       git commit --allow-empty-message <empty &&
+       commit_msg_is ""
+'
+
+test_expect_success 'Commit without message is no-no without --allow-empty-message' '
+       echo "more content" >>foo &&
+       git add foo &&
+       >empty &&
+       test_must_fail git commit <empty
+'
+
+test_expect_success 'Commit a message with --allow-empty-message' '
+       echo "even more content" >>foo &&
+       git add foo &&
+       git commit --allow-empty-message -m"hello there" &&
+       commit_msg_is "hello there"
+'
+
+commit_for_rebase_autosquash_setup () {
+       echo "first content line" >>foo &&
+       git add foo &&
+       cat >log <<EOF &&
+target message subject line
+
+target message body line 1
+target message body line 2
+EOF
+       git commit -F log &&
+       echo "second content line" >>foo &&
+       git add foo &&
+       git commit -m "intermediate commit" &&
+       echo "third content line" >>foo &&
+       git add foo
+}
+
+test_expect_success 'commit --fixup provides correct one-line commit message' '
+       commit_for_rebase_autosquash_setup &&
+       git commit --fixup HEAD~1 &&
+       commit_msg_is "fixup! target message subject line"
+'
+
+test_expect_success 'commit --squash works with -F' '
+       commit_for_rebase_autosquash_setup &&
+       echo "log message from file" >msgfile &&
+       git commit --squash HEAD~1 -F msgfile  &&
+       commit_msg_is "squash! target message subject linelog message from file"
+'
+
+test_expect_success 'commit --squash works with -m' '
+       commit_for_rebase_autosquash_setup &&
+       git commit --squash HEAD~1 -m "foo bar\nbaz" &&
+       commit_msg_is "squash! target message subject linefoo bar\nbaz"
+'
+
+test_expect_success 'commit --squash works with -C' '
+       commit_for_rebase_autosquash_setup &&
+       git commit --squash HEAD~1 -C HEAD &&
+       commit_msg_is "squash! target message subject lineintermediate commit"
+'
+
+test_expect_success 'commit --squash works with -c' '
+       commit_for_rebase_autosquash_setup &&
+       test_set_editor "$TEST_DIRECTORY"/t7500/edit-content &&
+       git commit --squash HEAD~1 -c HEAD &&
+       commit_msg_is "squash! target message subject lineedited commit"
+'
+
+test_expect_success 'commit --squash works with -C for same commit' '
+       commit_for_rebase_autosquash_setup &&
+       git commit --squash HEAD -C HEAD &&
+       commit_msg_is "squash! intermediate commit"
+'
+
+test_expect_success 'commit --squash works with -c for same commit' '
+       commit_for_rebase_autosquash_setup &&
+       test_set_editor "$TEST_DIRECTORY"/t7500/edit-content &&
+       git commit --squash HEAD -c HEAD &&
+       commit_msg_is "squash! edited commit"
+'
+
+test_expect_success 'commit --squash works with editor' '
+       commit_for_rebase_autosquash_setup &&
+       test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
+       git commit --squash HEAD~1 &&
+       commit_msg_is "squash! target message subject linecommit message"
+'
+
+test_expect_success 'invalid message options when using --fixup' '
+       echo changes >>foo &&
+       echo "message" >log &&
+       git add foo &&
+       test_must_fail git commit --fixup HEAD~1 --squash HEAD~2 &&
+       test_must_fail git commit --fixup HEAD~1 -C HEAD~2 &&
+       test_must_fail git commit --fixup HEAD~1 -c HEAD~2 &&
+       test_must_fail git commit --fixup HEAD~1 -m "cmdline message" &&
+       test_must_fail git commit --fixup HEAD~1 -F log
+'
+
 test_done