diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb
index a5c7aab7f3..78848136db 100644
--- a/test/ruby/test_integer.rb
+++ b/test/ruby/test_integer.rb
@@ -16,7 +16,13 @@ class TestInteger < Test::Unit::TestCase
     -0x40000001,
     -0x40000000,
     -0x3fffffff,
+    -0x10001,
+    -0x10000,
+    -0xffff,
     -0x8101,
+    -0x8001,
+    -0x8000,
+    -0x7fff,
     -0x7f01,
     -65,
     -64,
@@ -42,7 +48,13 @@ class TestInteger < Test::Unit::TestCase
     64,
     65,
     0x7f01,
+    0x7ffe,
+    0x7fff,
+    0x8000,
     0x8101,
+    0xfffe,
+    0xffff,
+    0x10000,
     0x3ffffffe,
     0x3fffffff,
     0x40000000,