1 files changed, 10 insertions, 0 deletions

diff --git a/testsuite/test.tests b/testsuite/test.tests
index d4be949ec..b7c84d9b2 100755
--- a/testsuite/test.tests
+++ b/testsuite/test.tests
@@ -21,6 +21,11 @@ testing "test '': should be false (1)" \
         "1\n" \
         "" ""
 
+testing "test !: should be true (0)" \
+        "busybox test !; echo \$?" \
+        "0\n" \
+        "" ""
+
 testing "test a: should be true (0)" \
         "busybox test a; echo \$?" \
         "0\n" \
@@ -51,6 +56,11 @@ testing "test -lt = -gt: should be false (1)" \
         "1\n" \
         "" ""
 
+testing "test a -a !: should be true (0)" \
+        "busybox test a -a !; echo \$?" \
+        "0\n" \
+        "" ""
+
 testing "test -f = a -o b: should be true (0)" \
         "busybox test -f = a -o b; echo \$?" \
         "0\n" \