format-using: add a couple of trivial unit-tests

diff --git a/extra/format-using/format-using-tests.factor b/extra/format-using/format-using-tests.factor
index 59f75617f2b5a79ffaea1e6832fcfbf5e38cfea1..0542039bf6bb535b350a06a4e569e64e77e1212e 100644 (file)
--- a/extra/format-using/format-using-tests.factor
+++ b/extra/format-using/format-using-tests.factor
@@ -2,6 +2,8 @@
 ! See https://factorcode.org/license.txt for BSD license.
 USING: format-using qw tools.test ;
 
+{ "USING: ;" } [ { } format-using ] unit-test
+{ "USE: vocab" } [ { "vocab" } format-using ] unit-test
 { "USING:
     io.directories io.encodings.utf8 io.files io.pathnames
     kernel