From 786b4b7351bc8e305ad7e68d11ca6b542f66d456 Mon Sep 17 00:00:00 2001
From: Paul Dreik <github@pauldreik.se>
Date: Sun, 5 May 2019 19:25:23 +0200
Subject: [PATCH] add assert triggering data, and unit test

---
 ...d-from-987478524c704c2dfb7aabbd62b58655a1f2038f |  1 +
 test/chrono-test.cc                                | 14 ++++++++++----
 2 files changed, 11 insertions(+), 4 deletions(-)
 create mode 100644 fuzzing/crashes/chrono_duration/minimized-from-987478524c704c2dfb7aabbd62b58655a1f2038f

diff --git a/fuzzing/crashes/chrono_duration/minimized-from-987478524c704c2dfb7aabbd62b58655a1f2038f b/fuzzing/crashes/chrono_duration/minimized-from-987478524c704c2dfb7aabbd62b58655a1f2038f
new file mode 100644
index 000000000000..4ec1ce9e9b76
--- /dev/null
+++ b/fuzzing/crashes/chrono_duration/minimized-from-987478524c704c2dfb7aabbd62b58655a1f2038f
@@ -0,0 +1 @@
+jobs{:%S
\ No newline at end of file
diff --git a/test/chrono-test.cc b/test/chrono-test.cc
index be775069cb29..a5cada192663 100644
--- a/test/chrono-test.cc
+++ b/test/chrono-test.cc
@@ -318,16 +318,22 @@ TEST(ChronoTest, SpecialDurations) {
 
 TEST(ChronoTest, DurationIsFloatNaN) {
   const std::chrono::duration<float> d{std::nanf("1")};
-  EXPECT_THROW(fmt::format("{:%I}",d),fmt::format_error);
+  EXPECT_THROW(fmt::format("{:%I}", d), fmt::format_error);
 }
 
 TEST(ChronoTest, DurationIsDoubleNaN) {
   const std::chrono::duration<double> d{std::nan("1")};
-  EXPECT_THROW(fmt::format("{:%I}",d),fmt::format_error);
+  EXPECT_THROW(fmt::format("{:%I}", d), fmt::format_error);
 }
 
 TEST(ChronoTest, OverflowingFloat) {
-  const std::chrono::duration<float,std::kilo> d{std::numeric_limits<float>::max()*0.5f};
-  EXPECT_THROW(fmt::format("{:%I}",d),fmt::format_error);
+  const std::chrono::duration<float, std::kilo> d{
+      std::numeric_limits<float>::max() * 0.5f};
+  EXPECT_THROW(fmt::format("{:%I}", d), fmt::format_error);
+}
+
+TEST(ChronoTest, OverflowingFloat2) {
+  const std::chrono::duration<float, std::atto> d{1.79400457e+31f};
+  EXPECT_THROW(fmt::format("{:%S}", d), fmt::format_error);
 }
 #endif  // FMT_STATIC_THOUSANDS_SEPARATOR