From f9c1a2fd9896852b065c017303569076636ad7c7 Mon Sep 17 00:00:00 2001
From: Dimitri Sabadie <dimitri.sabadie@gmail.com>
Date: Fri, 29 Jul 2016 18:02:37 +0200
Subject: [PATCH] Added a test for Quaternion::exp().

---
 tests/quat.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tests/quat.rs b/tests/quat.rs
index 251fabfc..cfe2557a 100644
--- a/tests/quat.rs
+++ b/tests/quat.rs
@@ -1,7 +1,7 @@
 extern crate nalgebra as na;
 extern crate rand;
 
-use na::{Point3, Vector3, Rotation3, UnitQuaternion, Rotation};
+use na::{Point3, Quaternion, Vector3, Rotation3, UnitQuaternion, Rotation, one};
 use rand::random;
 
 #[test]
@@ -90,3 +90,9 @@ fn test_quaternion_angle_between() {
 
     assert!(na::approx_eq(&na::norm(&na::rotation(&delta)), &delta_angle))
 }
+
+#[test]
+fn test_quaternion_exp_zero_is_one() {
+    let q = Quaternion::new(0., 0., 0., 0.);
+    assert!(na::approx_eq(&q.exp(), &one()))
+}