start of computer integration tests

gemma/tests/computer_tests.rs

@@ -6,4 +6,11 @@ fn smoke() { assert!(true) }
 #[test]
 fn test_rom_1_works() {
     let mut x = Chip8Computer::new();
+    // Load the IBM rom and run it...
+
+    // ...then verify that the current video memory of the chip-8
+    // simulator matches what we expect it to be
+
+    assert_eq!(x.dump_video_to_string(), );
+
 }