implement move_forward action

1 files changed, 32 insertions, 0 deletions

diff --git a/src/simulation/actions.test.js b/src/simulation/actions.test.js
new file mode 100644
index 0000000..a870352
--- /dev/null
+++ b/src/simulation/actions.test.js
@@ -0,0 +1,32 @@
+'use strict';
+
+import { actions } from './actions.js';
+
+
+const [move_forward, ...rest] = actions;
+
+
+test("move forward", () => {
+  const n = { id: 0, x: 0, y: 0, flags: { orientation: 'n' } };
+  const s = { id: 0, x: 0, y: 0, flags: { orientation: 's' } };
+  const e = { id: 0, x: 0, y: 0, flags: { orientation: 'e' } };
+  const w = { id: 0, x: 0, y: 0, flags: { orientation: 'w' } };
+
+  expect(move_forward.propose(n, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, x: 0, y: -1 }] },
+  ]);
+  expect(move_forward.propose(s, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, x: 0, y: 1 }] },
+  ]);
+  expect(move_forward.propose(e, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, x: 1, y: 0 }] },
+  ]);
+  expect(move_forward.propose(w, [1])).toEqual([
+    { agent_changes: [{ agent_id: 0, x: -1, y: 0 }] },
+  ]);
+
+  expect(move_forward.propose(n, [0])).toEqual([]);
+  expect(move_forward.propose(s, [-1])).toEqual([]);
+  expect(move_forward.propose(e, [0])).toEqual([]);
+  expect(move_forward.propose(w, [-1])).toEqual([]);
+});