From 8c6bd8eb9039b7578077c21ec08f6e4a409bcd1e Mon Sep 17 00:00:00 2001
From: Shin'ya Ueoka <ueokande@i-beam.org>
Date: Tue, 15 Aug 2017 21:16:13 +0900
Subject: [PATCH] add keys test

---
 test/background/keys.test.js | 55 ++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 test/background/keys.test.js

diff --git a/test/background/keys.test.js b/test/background/keys.test.js
new file mode 100644
index 0000000..da9d430
--- /dev/null
+++ b/test/background/keys.test.js
@@ -0,0 +1,55 @@
+import { expect } from "chai";
+import { identifyKey, identifyKeys, hasPrefix } from '../../src/background/keys';
+
+describe('keys', () => {
+  describe('#identifyKey', () => {
+    it('return true if key matched', () => {
+      expect(identifyKey(
+        { code: 100 },
+        { code: 100 })).to.be.true;
+      expect(identifyKey(
+        { code: 100, shift: true, ctrl: true },
+        { code: 100, shift: true, ctrl: true })).to.be.true;
+      expect(identifyKey(
+        { code: 100, shift: false, ctrl: false },
+        { code: 100 })).to.be.true;
+    });
+
+    it('return false if key not matched', () => {
+      expect(identifyKey(
+        { code: 100 },
+        { code: 101 })).to.be.false;
+      expect(identifyKey(
+        { code: 100, shift: true, ctrl: true },
+        { code: 100, shift: true })).to.be.false;
+    });
+  });
+
+  describe('#identifyKeys', () => {
+    it ('return true if keys matched', () => {
+      let keys = [{ code: 100 }, { code: 101, ctrl: false}];
+      let prefix = [{ code: 100, ctrl: false }, { code: 101 }];
+      expect(hasPrefix(keys, prefix)).to.be.true;
+    });
+
+    it ('return false if keys matched', () => {
+      let keys = [{ code: 100 }, { code: 101, ctrl: true }];
+      let prefix = [{ code: 100 }, { code: 101 }];
+      expect(hasPrefix(keys, prefix)).to.be.false;
+    });
+  });
+
+  describe('#hasPrefix', () => {
+    it ('return true if prefix matched', () => {
+      let keys = [{ code: 100 }, { code: 101 }, { code: 102 }];
+      let prefix = [{ code: 100 }, { code: 101 }];
+      expect(hasPrefix(keys, prefix)).to.be.true;
+    });
+
+    it ('return false if prefix not matched', () => {
+      let keys = [{ code: 100 }, { code: 101 }, { code: 102 }];
+      let prefix = [{ code: 102 }];
+      expect(hasPrefix(keys, prefix)).to.be.false;
+    });
+  });
+});