what is up with those tests!

input/src/lib.rs

@@ -1,44 +1,25 @@
 #![feature(associated_type_defaults)]
 
 //mod component; pub use self::component::*;
-mod engine;    pub use self::engine::*;
 mod input;     pub use self::input::*;
 mod handle;    pub use self::handle::*;
 mod command;   pub use self::command::*;
 mod event_map; pub use self::event_map::*;
 
-pub(crate) use std::marker::PhantomData;
+/// Standard error trait.
 pub(crate) use std::error::Error;
-
 /// Standard result type.
 pub(crate) type Usually<T> = Result<T, Box<dyn Error>>;
-
 /// Standard optional result type.
 pub(crate) type Perhaps<T> = Result<Option<T>, Box<dyn Error>>;
 
-#[cfg(test)] #[test] fn test_dimensions () {
-    assert_eq!(Area::center(&[10u16, 10, 20, 20]), [20, 20]);
-}
-
-#[cfg(test)] #[test] fn test_stub_engine () -> Usually<()> {
+#[cfg(test)] #[test] fn test_stub_input () -> Usually<()> {
     use crate::*;
-    struct TestEngine(bool);
     struct TestInput(bool);
-    struct TestOutput([u16;4]);
     enum TestEvent { Test1 }
-    impl Engine for TestEngine {
-        type Input   = TestInput;
-        type Handled = ();
-        type Output  = TestOutput;
-        type Unit    = u16;
-        type Size    = [u16;2];
-        type Area    = [u16;4];
-        fn exited (&self) -> bool {
-            self.0
-        }
-    }
-    impl Input<TestEngine> for TestInput {
+    impl Input for TestInput {
         type Event = TestEvent;
+        type Handled = ();
         fn event (&self) -> &Self::Event {
             &TestEvent::Test1
         }
@@ -47,21 +28,5 @@ pub(crate) type Perhaps<T> = Result<Option<T>, Box<dyn Error>>;
         }
         fn done (&self) {}
     }
-    impl Output<TestEngine> for TestOutput {
-        fn area (&self) -> [u16;4] {
-            self.0
-        }
-        fn area_mut (&mut self) -> &mut [u16;4] {
-            &mut self.0
-        }
-        fn place (&mut self, _: [u16;4], _: &impl Render<TestEngine>) {
-            ()
-        }
-    }
-    impl Content<TestEngine> for String {
-        fn render (&self, to: &mut TestOutput) {
-            to.area_mut().set_w(self.len() as u16);
-        }
-    }
     Ok(())
 }