Update test_fmt_helper.cpp

include/spdlog/details/fmt_helper.h

@@ -73,7 +73,18 @@ inline void pad_uint(T n, unsigned int width, memory_buf_t &dest)
 template<typename T>
 inline void pad3(T n, memory_buf_t &dest)
 {
-    pad_uint(n, 3, dest);
+    static_assert(std::is_unsigned<T>::value, "pad3 must get unsigned T");
+    if(n < 1000)
+    {
+        dest.push_back(static_cast<char>(n / 100 + '0'));
+        n = n % 100;
+        dest.push_back(static_cast<char>((n / 10) + '0'));
+        dest.push_back(static_cast<char>((n % 10) + '0'));
+    }
+    else
+    {
+        append_int(n, dest);
+    }
 }
 
 template<typename T>

tests/test_fmt_helper.cpp

@@ -36,7 +36,10 @@ TEST_CASE("pad2", "[fmt_helper]")
 {
     test_pad2(0, "00");
     test_pad2(3, "03");
+    test_pad2(10, "10");
     test_pad2(23, "23");
+    test_pad2(99, "99");
+    test_pad2(100, "100");
     test_pad2(123, "123");
     test_pad2(1234, "1234");
     test_pad2(-5, "-5");
@@ -46,8 +49,13 @@ TEST_CASE("pad3", "[fmt_helper]")
 {
     test_pad3(0, "000");
     test_pad3(3, "003");
+    test_pad3(10, "010");
     test_pad3(23, "023");
+    test_pad3(99, "099");
+    test_pad3(100, "100");
     test_pad3(123, "123");
+    test_pad3(999, "999");
+    test_pad3(1000, "1000");
     test_pad3(1234, "1234");
 }