provoke assertion

fmt/include/fmt/core.h:246: typename std::make_unsigned<_Tp>::type fmt::v5::internal::to_unsigned(Int) [with Int = long int; typename std::make_unsigned<_Tp>::type = long unsigned int]: Assertion `(value >= 0) && "negative value"' failed.
pauldreik · Apr 28, 2019 · b8d7091 · b8d7091
1 parent e196601
commit b8d7091
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/test/chrono-test.cc b/test/chrono-test.cc
@@ -301,4 +301,8 @@ TEST(ChronoTest, InvalidWidthId) {
                fmt::format_error);
 }
 
+TEST(ChronoTest, InvalidColons) {
+  EXPECT_THROW(fmt::format("{0}=:{0::", std::chrono::seconds(0)),
+               fmt::format_error);
+}
 #endif  // FMT_STATIC_THOUSANDS_SEPARATOR