From ec9efc7edc3133459612e6e799e68a454e8148ba Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 17 Mar 2019 21:57:24 +0800
Subject: Add unit test.

---
 .../src/app/test-utilities/storage.mock.ts         | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Timeline/ClientApp/src/app/test-utilities/storage.mock.ts

(limited to 'Timeline/ClientApp/src/app/test-utilities/storage.mock.ts')

diff --git a/Timeline/ClientApp/src/app/test-utilities/storage.mock.ts b/Timeline/ClientApp/src/app/test-utilities/storage.mock.ts
new file mode 100644
index 00000000..0ba5aa35
--- /dev/null
+++ b/Timeline/ClientApp/src/app/test-utilities/storage.mock.ts
@@ -0,0 +1,28 @@
+import { Mock } from './mock';
+import { nullIfUndefined } from '../utilities/language-untilities';
+
+export function createMockStorage(): Mock<Storage> {
+  const map: { [key: string]: string } = {};
+  return {
+    get length(): number {
+      return Object.keys(map).length;
+    },
+    key(index: number): string | null {
+      const keys = Object.keys(map);
+      if (index >= keys.length) { return null; }
+      return keys[index];
+    },
+    clear() {
+      Object.keys(map).forEach(key => delete map.key);
+    },
+    getItem(key: string): string | null {
+      return nullIfUndefined(map[key]);
+    },
+    setItem(key: string, value: string) {
+      map[key] = value;
+    },
+    removeItem(key: string) {
+      delete map[key];
+    }
+  };
+}
-- 
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