Move unit tests into source

Move the unit tests into the relevant source files. There's no need for them to
be seprate, especially when the `tests` directory is meant to be for integration
tests.

The deserialization tests that include JSON files are still in the `tests` dir,
along with the public prelude re-export tests.

1 files changed, 52 insertions, 0 deletions

diff --git a/src/utils/colour.rs b/src/utils/colour.rs
index c901e9b..9e84e4e 100644
--- a/src/utils/colour.rs
+++ b/src/utils/colour.rs
@@ -309,3 +309,55 @@ impl Default for Colour {
     /// Creates a default value for a `Colour`, setting the inner value to `0`.
     fn default() -> Colour { Colour(0) }
 }
+
+#[cfg(test)]
+mod test {
+    use super::Colour;
+    use std::u32;
+
+    #[test]
+    fn new() {
+        assert_eq!(Colour::new(1).0, 1);
+        assert_eq!(Colour::new(u32::MIN).0, u32::MIN);
+        assert_eq!(Colour::new(u32::MAX).0, u32::MAX);
+    }
+
+    #[test]
+    fn from_rgb() {
+        assert_eq!(Colour::from_rgb(255, 0, 0).0, 0xFF0000);
+        assert_eq!(Colour::from_rgb(0, 255, 0).0, 0x00FF00);
+        assert_eq!(Colour::from_rgb(0, 0, 255).0, 0x0000FF);
+    }
+
+    #[test]
+    fn r() {
+        assert_eq!(Colour::new(0x336123).r(), 0x33);
+    }
+
+    #[test]
+    fn g() {
+        assert_eq!(Colour::new(0x336123).g(), 0x61);
+    }
+
+    #[test]
+    fn b() {
+        assert_eq!(Colour::new(0x336123).b(), 0x23);
+    }
+
+    #[test]
+    fn tuple() {
+        assert_eq!(Colour::new(0x336123).tuple(), (0x33, 0x61, 0x23));
+    }
+
+    #[test]
+    fn default() {
+        assert_eq!(Colour::default().0, 0);
+    }
+
+    #[test]
+    fn from() {
+        assert_eq!(Colour::from(7i32).0, 7);
+        assert_eq!(Colour::from(7u32).0, 7);
+        assert_eq!(Colour::from(7u64).0, 7);
+    }
+}