flatten workspace into 1 crate

src/core/test.rs

@@ -0,0 +1,49 @@
+#[cfg(test)] mod test_focus {
+    use super::focus::*;
+    #[test] fn test_focus () {
+
+        struct FocusTest {
+            focused: char,
+            cursor: (usize, usize)
+        }
+
+        impl HasFocus for FocusTest {
+            type Item = char;
+            fn focused (&self) -> Self::Item {
+                self.focused
+            }
+            fn set_focused (&mut self, to: Self::Item) {
+                self.focused = to
+            }
+        }
+
+        impl FocusGrid for FocusTest {
+            fn focus_cursor (&self) -> (usize, usize) {
+                self.cursor
+            }
+            fn focus_cursor_mut (&mut self) -> &mut (usize, usize) {
+                &mut self.cursor
+            }
+            fn focus_layout (&self) -> &[&[Self::Item]] {
+                &[
+                    &['a', 'a', 'a', 'b', 'b', 'd'],
+                    &['a', 'a', 'a', 'b', 'b', 'd'],
+                    &['a', 'a', 'a', 'c', 'c', 'd'],
+                    &['a', 'a', 'a', 'c', 'c', 'd'],
+                    &['e', 'e', 'e', 'e', 'e', 'e'],
+                ]
+            }
+        }
+
+        let mut tester = FocusTest { focused: 'a', cursor: (0, 0) };
+
+        tester.focus_right();
+        assert_eq!(tester.cursor.0, 3);
+        assert_eq!(tester.focused, 'b');
+
+        tester.focus_down();
+        assert_eq!(tester.cursor.1, 2);
+        assert_eq!(tester.focused, 'c');
+
+    }
+}