From c9a9cad256b930a3a31311b1cbbba58268aaa102 Mon Sep 17 00:00:00 2001
From: Marckvdv <marckvandervegt@gmail.com>
Date: Mon, 3 Oct 2016 13:20:57 +0200
Subject: [PATCH] Added tests for the added cast functions of matrix and point.

---
 tests/matrix.rs | 27 +++++++++++++++++++++++++++
 tests/point.rs  |  9 ++++++++-
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/tests/matrix.rs b/tests/matrix.rs
index f888f08..fc3cda3 100644
--- a/tests/matrix.rs
+++ b/tests/matrix.rs
@@ -704,6 +704,33 @@ pub mod matrix4 {
         assert_eq!(res, Vector4::new(1., 2., 3., 1.));
     }
 
+    #[test]
+    fn test_cast() {
+        assert_ulps_eq!(Matrix2::new(0.2f64, 1.5, 4.7, 2.3).cast(), Matrix2::new(0.2f32, 1.5, 4.7, 2.3));
+        assert_ulps_eq!(Matrix3::new(
+            0.2f64, 1.5, 4.7,
+            2.3,    5.7, 2.1,
+            4.6,    5.2, 6.6,
+        ).cast(), Matrix3::new(
+            0.2f32, 1.5, 4.7,
+            2.3,    5.7, 2.1,
+            4.6,    5.2, 6.6,
+        ));
+
+        assert_ulps_eq!(Matrix4::new(
+            0.2f64, 1.5, 4.7, 2.5,
+            2.3,    5.7, 2.1, 1.1,
+            4.6,    5.2, 6.6, 0.2,
+            3.2,    1.8, 0.4, 2.9,
+        ).cast(), Matrix4::new(
+            0.2f32, 1.5, 4.7, 2.5,
+            2.3,    5.7, 2.1, 1.1,
+            4.6,    5.2, 6.6, 0.2,
+            3.2,    1.8, 0.4, 2.9,
+        ));
+
+    }
+
     mod from {
         use cgmath::*;
 
diff --git a/tests/point.rs b/tests/point.rs
index dc896d7..0078189 100644
--- a/tests/point.rs
+++ b/tests/point.rs
@@ -17,7 +17,7 @@
 extern crate approx;
 extern crate cgmath;
 
-use cgmath::{Point2, Point3};
+use cgmath::{Point1, Point2, Point3};
 
 macro_rules! impl_test_mul {
     ($PointN:ident { $($field:ident),+ }, $s:expr, $v:expr) => (
@@ -74,3 +74,10 @@ fn test_rem() {
     impl_test_rem!(Point3 { x, y, z }, 2.0f32, Point3::new(2.0f32, 4.0, 6.0));
     impl_test_rem!(Point2 { x, y }, 2.0f32, Point2::new(2.0f32, 4.0));
 }
+
+#[test]
+fn test_cast() {
+    assert_ulps_eq!(Point1::new(0.9f64).cast(), Point1::new(0.9f32));
+    assert_ulps_eq!(Point2::new(0.9f64, 1.5).cast(), Point2::new(0.9f32, 1.5));
+    assert_ulps_eq!(Point3::new(1.0f64, 2.4, -3.13).cast(), Point3::new(1.0f32, 2.4, -3.13));
+}