begin testing and make grammar more spec-compliant

1 files changed, 15 insertions, 0 deletions

diff --git a/src/vm/instruction.test.js b/src/vm/instruction.test.js
new file mode 100644
index 0000000..5dc7eea
--- /dev/null
+++ b/src/vm/instruction.test.js
@@ -0,0 +1,15 @@
+'use strict';
+
+const { Core } = require('./core.js');
+const { DAT } = require('./instruction.js');
+
+
+const CORESIZE = 8000;
+
+
+test('DAT does nothing and kills the program', () => {
+	const core = new Core(CORESIZE);
+	const pc = 0;
+	const ins = core.data[pc];
+	expect(DAT(core, pc, ins)).toEqual([]);
+});