diff --git a/test/test_suite.cpp b/test/test_suite.cpp
index 97ce87f..a291cc7 100644
--- a/test/test_suite.cpp
+++ b/test/test_suite.cpp
@@ -883,21 +883,48 @@ TEST_CASE("float", "[]" ) {
 TEST_CASE("types", "[]" ) {
   char buffer[100];
 
+  test::sprintf(buffer, "%i", 0);
+  REQUIRE(!strcmp(buffer, "0"));
+
   test::sprintf(buffer, "%i", 1234);
   REQUIRE(!strcmp(buffer, "1234"));
 
+  test::sprintf(buffer, "%i", 32767);
+  REQUIRE(!strcmp(buffer, "32767"));
+
+  test::sprintf(buffer, "%i", -32767);
+  REQUIRE(!strcmp(buffer, "-32767"));
+
   test::sprintf(buffer, "%li", 30L);
   REQUIRE(!strcmp(buffer, "30"));
 
+  test::sprintf(buffer, "%li", -2147483647L);
+  REQUIRE(!strcmp(buffer, "-2147483647"));
+
+  test::sprintf(buffer, "%li", 2147483647L);
+  REQUIRE(!strcmp(buffer, "2147483647"));
+
   test::sprintf(buffer, "%lli", 30LL);
   REQUIRE(!strcmp(buffer, "30"));
 
+  test::sprintf(buffer, "%lli", -9223372036854775807LL);
+  REQUIRE(!strcmp(buffer, "-9223372036854775807"));
+
+  test::sprintf(buffer, "%lli", 9223372036854775807LL);
+  REQUIRE(!strcmp(buffer, "9223372036854775807"));
+
   test::sprintf(buffer, "%lu", 100000L);
   REQUIRE(!strcmp(buffer, "100000"));
 
+  test::sprintf(buffer, "%lu", 0xFFFFFFFFL);
+  REQUIRE(!strcmp(buffer, "4294967295"));
+
   test::sprintf(buffer, "%llu", 281474976710656LLU);
   REQUIRE(!strcmp(buffer, "281474976710656"));
 
+  test::sprintf(buffer, "%llu", 18446744073709551615LLU);
+  REQUIRE(!strcmp(buffer, "18446744073709551615"));
+
   test::sprintf(buffer, "%b", 60000);
   REQUIRE(!strcmp(buffer, "1110101001100000"));