From df4912a33f440914c8f22087ca954eb48c66a8b7 Mon Sep 17 00:00:00 2001
From: Brandon W Maister <quodlibetor@gmail.com>
Date: Wed, 13 Jun 2018 23:00:20 -0400
Subject: [PATCH] Test formatting with more precise nanoseconds

There is some specific behavior around writing out truncated nanos that we want
to be sure to preserve.
---
 src/format/strftime.rs | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/format/strftime.rs b/src/format/strftime.rs
index 7b66665..d7cf68c 100644
--- a/src/format/strftime.rs
+++ b/src/format/strftime.rs
@@ -408,9 +408,9 @@ fn test_strftime_items() {
 #[cfg(test)]
 #[test]
 fn test_strftime_docs() {
-    use {FixedOffset, TimeZone};
+    use {FixedOffset, TimeZone, Timelike};
 
-    let dt = FixedOffset::east(34200).ymd(2001, 7, 8).and_hms_nano(0, 34, 59, 1_026_490_000);
+    let dt = FixedOffset::east(34200).ymd(2001, 7, 8).and_hms_nano(0, 34, 59, 1_026_490_708);
 
     // date specifiers
     assert_eq!(dt.format("%Y").to_string(), "2001");
@@ -449,14 +449,16 @@ fn test_strftime_docs() {
     assert_eq!(dt.format("%p").to_string(), "AM");
     assert_eq!(dt.format("%M").to_string(), "34");
     assert_eq!(dt.format("%S").to_string(), "60");
-    assert_eq!(dt.format("%f").to_string(), "026490000");
-    assert_eq!(dt.format("%.f").to_string(), ".026490");
+    assert_eq!(dt.format("%f").to_string(), "026490708");
+    assert_eq!(dt.format("%.f").to_string(), ".026490708");
+    assert_eq!(dt.with_nanosecond(1_026_490_000).unwrap().format("%.f").to_string(),
+               ".026490");
     assert_eq!(dt.format("%.3f").to_string(), ".026");
     assert_eq!(dt.format("%.6f").to_string(), ".026490");
-    assert_eq!(dt.format("%.9f").to_string(), ".026490000");
+    assert_eq!(dt.format("%.9f").to_string(), ".026490708");
     assert_eq!(dt.format("%3f").to_string(), "026");
     assert_eq!(dt.format("%6f").to_string(), "026490");
-    assert_eq!(dt.format("%9f").to_string(), "026490000");
+    assert_eq!(dt.format("%9f").to_string(), "026490708");
     assert_eq!(dt.format("%R").to_string(), "00:34");
     assert_eq!(dt.format("%T").to_string(), "00:34:60");
     assert_eq!(dt.format("%X").to_string(), "00:34:60");
@@ -469,7 +471,9 @@ fn test_strftime_docs() {
 
     // date & time specifiers
     assert_eq!(dt.format("%c").to_string(), "Sun Jul  8 00:34:60 2001");
-    assert_eq!(dt.format("%+").to_string(), "2001-07-08T00:34:60.026490+09:30");
+    assert_eq!(dt.format("%+").to_string(), "2001-07-08T00:34:60.026490708+09:30");
+    assert_eq!(dt.with_nanosecond(1_026_490_000).unwrap().format("%+").to_string(),
+               "2001-07-08T00:34:60.026490+09:30");
     assert_eq!(dt.format("%s").to_string(), "994518299");
 
     // special specifiers