From 3586ece50a31fe0e27ca19849d2ffe7f856516d4 Mon Sep 17 00:00:00 2001
From: Avery Winters <git@averywinters.org>
Date: Wed, 11 Oct 2023 11:06:56 -0500
Subject: [PATCH] Solve rust/gigasecond

---
 rust/gigasecond/src/lib.rs          | 4 ++--
 rust/gigasecond/tests/gigasecond.rs | 4 ----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/rust/gigasecond/src/lib.rs b/rust/gigasecond/src/lib.rs
index 2dbb9ab..b6ba450 100644
--- a/rust/gigasecond/src/lib.rs
+++ b/rust/gigasecond/src/lib.rs
@@ -1,6 +1,6 @@
-use time::PrimitiveDateTime as DateTime;
+use time::{ext::NumericalDuration, PrimitiveDateTime as DateTime};
 
 // Returns a DateTime one billion seconds after start.
 pub fn after(start: DateTime) -> DateTime {
-    todo!("What time is a gigasecond later than {start}");
+    start + 1_000_000_000.seconds()
 }
diff --git a/rust/gigasecond/tests/gigasecond.rs b/rust/gigasecond/tests/gigasecond.rs
index 52237cf..a2b66c0 100644
--- a/rust/gigasecond/tests/gigasecond.rs
+++ b/rust/gigasecond/tests/gigasecond.rs
@@ -20,7 +20,6 @@ fn date() {
 }
 
 #[test]
-#[ignore]
 fn another_date() {
     let start_date = dt(1977, 6, 13, 0, 0, 0);
 
@@ -28,7 +27,6 @@ fn another_date() {
 }
 
 #[test]
-#[ignore]
 fn third_date() {
     let start_date = dt(1959, 7, 19, 0, 0, 0);
 
@@ -36,7 +34,6 @@ fn third_date() {
 }
 
 #[test]
-#[ignore]
 fn datetime() {
     let start_date = dt(2015, 1, 24, 22, 0, 0);
 
@@ -44,7 +41,6 @@ fn datetime() {
 }
 
 #[test]
-#[ignore]
 fn another_datetime() {
     let start_date = dt(2015, 1, 24, 23, 59, 59);