Another test

The previous test did not do anything, actually, because it figured that
there was a successful run for a tree-same commit...

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

t/test-lib-functions.sh

@@ -492,10 +492,7 @@ test_commit_bulk () {
 # of a file in the working directory and add it to the index.
 
 test_chmod () {
-	if test_have_prereq !MINGW
-	then
-		chmod "$@"
-	fi &&
+	chmod "$@" &&
 	git update-index --add "--chmod=$@"
 }
 
@@ -551,10 +548,7 @@ write_script () {
 		echo "#!${2-"$SHELL_PATH"}" &&
 		cat
 	} >"$1" &&
-	if test_have_prereq !MINGW
-	then
-		chmod +x "$1"
-	fi
+	chmod +x "$1"
 }
 
 # Usage: test_hook [options] <hook-name> <<-\EOF

t/test-lib.sh

@@ -1546,6 +1546,10 @@ case $uname_s in
 		builtin pwd -W
 	}
 	# no POSIX permissions
+	chmod () {
+		# no-op; incompatible with Windows' permission model
+		echo "skipping chmod $*" >&2
+	}
 	# backslashes in pathspec are converted to '/'
 	# exec does not inherit the PID
 	test_set_prereq MINGW