Tests: add some more fmt tests

tests/src/Misc/fmt.cpp

@@ -1,9 +1,22 @@
 #include "gtest/gtest.h"
 #include "fmt/format.h"
+#include "fmt/printf.h"
+#include <stdexcept>
 
 TEST(fmt, fail){
     EXPECT_NE("abc", fmt::format("{}{}","a","b"));
 }
+
 TEST(fmt, pass){
     EXPECT_EQ("ab", fmt::format("{}{}","a","b"));
 }
+
+TEST(fmt, print_pass){
+    EXPECT_EQ("12", fmt::sprintf("%s%d","1",2));
+    EXPECT_EQ("x", fmt::sprintf("%c", 'x'));
+    EXPECT_EQ("1.23 2", fmt::sprintf("%.2f %d",1.23456,2));
+}
+
+TEST(fmt, print_fail){
+    EXPECT_THROW(fmt::printf("%s%d",1,2), std::exception);
+}