Add more test cases

Author: 38

src/coord/numeric.rs

@@ -306,4 +306,12 @@ mod test {
         let _coord =
             RangedCoord::<RangedCoordu32, RangedCoordu32>::new(0..10, 0..10, (0..1024, 0..768));
     }
+
+    #[test]
+    fn test_coord_unmap() {
+        let coord: RangedCoordu32 = (0..20).into();
+        let pos = coord.map(&5, (1000, 2000));
+        let value = coord.unmap(pos, (1000, 2000));
+        assert_eq!(value, Some(5));
+    }
 }

src/coord/partial_axis.rs

@@ -104,3 +104,15 @@ where
 
     Some(PartialAxis(full_range.into(), axis_range.range()))
 }
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    #[test]
+    fn test_make_partial_axis() {
+        let r = make_partial_axis(20..80, 0.2..0.8).unwrap();
+        assert_eq!(r.size(), 101);
+        assert_eq!(r.range(), 0..100);
+        assert_eq!(r.axis_pixel_range((0, 100)), 20..80);
+    }
+}