add key-queue test

1 files changed, 47 insertions, 0 deletions

diff --git a/test/background/key-queue.test.js b/test/background/key-queue.test.js
new file mode 100644
index 0000000..7b0db9b
--- /dev/null
+++ b/test/background/key-queue.test.js
@@ -0,0 +1,47 @@
+import { expect } from "chai";
+import KeyQueue from '../../src/background/key-queue';
+import * as actions from '../../src/shared/actions';
+
+describe("keyQueue class", () => {
+  const KEYMAP = [
+    { keys: [{ code: KeyboardEvent.DOM_VK_G }, { code: KeyboardEvent.DOM_VK_G }],
+      action: [ actions.SCROLL_TOP ]},
+    { keys: [{ code: KeyboardEvent.DOM_VK_J }],
+      action: [ actions.SCROLL_DOWN ]},
+  ]
+
+  describe("#push", () => {
+    it("returns matched action", () => {
+      let queue = new KeyQueue(KEYMAP);
+      queue.push({ code: KeyboardEvent.DOM_VK_G });
+      let action = queue.push({ code: KeyboardEvent.DOM_VK_G });
+
+      expect(action).to.deep.equal([ actions.SCROLL_TOP ]);
+    });
+
+    it("returns null on no actions matched", () => {
+      let queue = new KeyQueue(KEYMAP);
+      queue.push({ code: KeyboardEvent.DOM_VK_G });
+      let action = queue.push({ code: KeyboardEvent.DOM_VK_X });
+
+      expect(action).to.be.null;
+    });
+  });
+
+  describe("#queuedKeys", () => {
+    it("queues keys on matched actions exist", () => {
+      let queue = new KeyQueue(KEYMAP);
+      queue.push({ code: KeyboardEvent.DOM_VK_G });
+
+      expect(queue.queuedKeys()).to.have.lengthOf(1);
+    });
+
+    it("flushs keys on no actions matched", () => {
+      let queue = new KeyQueue(KEYMAP);
+      queue.push({ code: KeyboardEvent.DOM_VK_G });
+      queue.push({ code: KeyboardEvent.DOM_VK_Z });
+
+      expect(queue.queuedKeys()).to.be.empty;
+    });
+  });
+});