test-ctype
'
+test_expect_success 'mktemp to nonexistent directory prints filename' '
+ test_must_fail test-mktemp doesnotexist/testXXXXXX 2>err &&
+ grep "doesnotexist/test" err
+'
+
+test_expect_success POSIXPERM,SANITY 'mktemp to unwritable directory prints filename' '
+ mkdir cannotwrite &&
+ chmod -w cannotwrite &&
+ test_when_finished "chmod +w cannotwrite" &&
+ test_must_fail test-mktemp cannotwrite/testXXXXXX 2>err &&
+ grep "cannotwrite/test" err
+'
+
+test_expect_success 'check for a bug in the regex routines' '
+ # if this test fails, re-build git with NO_REGEX=1
+ test-regex
+'
+
test_done