"git tag -u keyname" broken

diff --git a/t/t7501-commit.sh b/t/t7501-commit.sh
index ce83af3a02427af8c6a5fbea921a46ed5522b8b3..05aa97d6f3d3a87d94004b9f9f4394d8e35175f6 100755 (executable)
--- a/t/t7501-commit.sh
+++ b/t/t7501-commit.sh
@@ -4,7 +4,7 @@
 #
 
 # FIXME: Test the various index usages, -i and -o, test reflog,
-# signoff, hooks
+# signoff
 
 test_description='git-commit'
 . ./test-lib.sh
@@ -79,7 +79,8 @@ test_expect_success \
 
 cat >editor <<\EOF
 #!/bin/sh
-sed -i -e "s/a file/an amend commit/g" $1
+sed -e "s/a file/an amend commit/g" < $1 > $1-
+mv $1- $1
 EOF
 chmod 755 editor
 
@@ -98,7 +99,8 @@ test_expect_success \
 
 cat >editor <<\EOF
 #!/bin/sh
-sed -i -e "s/amend/older/g" $1
+sed -e "s/amend/older/g"  < $1 > $1-
+mv $1- $1
 EOF
 chmod 755 editor
 
@@ -267,4 +269,45 @@ test_expect_success 'git commit <file> with dirty index' '
        git diff --cached | grep chz
 '
 
+test_expect_success 'same tree (single parent)' '
+
+       git reset --hard
+
+       if git commit -m empty
+       then
+               echo oops -- should have complained
+               false
+       else
+               : happy
+       fi
+
+'
+
+test_expect_success 'same tree (single parent) --allow-empty' '
+
+       git commit --allow-empty -m "forced empty" &&
+       git cat-file commit HEAD | grep forced
+
+'
+
+test_expect_success 'same tree (merge and amend merge)' '
+
+       git checkout -b side HEAD^ &&
+       echo zero >zero &&
+       git add zero &&
+       git commit -m "add zero" &&
+       git checkout master &&
+
+       git merge -s ours side -m "empty ok" &&
+       git diff HEAD^ HEAD >actual &&
+       : >expected &&
+       diff -u expected actual &&
+
+       git commit --amend -m "empty really ok" &&
+       git diff HEAD^ HEAD >actual &&
+       : >expected &&
+       diff -u expected actual
+
+'
+
 test_done