diff --git a/src/cookie.ts b/src/cookie.ts
index d4494aa..adc4e74 100644
--- a/src/cookie.ts
+++ b/src/cookie.ts
@@ -3,8 +3,8 @@ const cookie = {
      * 原生 JavaScript 获取 cookie 值
      * @param name
      */
-    getCookie(name: string) {
-        const arr = document.cookie.match(new RegExp('(^| )' + name + '=([^;]*)(;|$)'));
+    getCookie(name: string, cookiesStr: string = document.cookie) {
+        const arr = cookiesStr.match(new RegExp('(^| )' + name + '=([^;]*)(;|$)'));
         if (arr != null) {
             try {
                 return unescape(decodeURI(arr[2]));
@@ -52,7 +52,8 @@ const cookie = {
         name: string,
         value: string | number | object | boolean,
         days?: number,
-        domainStr?: string
+        domainStr?: string,
+        path: string = '/'
     ) {
         let expires = '';
         if (days) {
@@ -64,7 +65,7 @@ const cookie = {
         if (domainStr) {
             domain = '; domain=' + domainStr;
         }
-        document.cookie = name + '=' + value + expires + domain + '; path=/';
+        document.cookie = name + '=' + value + expires + domain + '; path=' + path;
     },
 };
 
diff --git a/test/cookie.test.ts b/test/cookie.test.ts
new file mode 100644
index 0000000..0576d62
--- /dev/null
+++ b/test/cookie.test.ts
@@ -0,0 +1,98 @@
+import cookie from '../src/cookie';
+
+type TCookie = {
+    name?: string;
+    value?: string;
+    expires?: string;
+    domain?: string;
+    path?: string;
+};
+
+let cookies: TCookie[] = [];
+
+Object.defineProperty(window.document, 'cookie', {
+    get() {
+        return cookies.map(({ name, value }) => `${name}=${value}`).join('; ');
+    },
+    set(value: string) {
+        const innerAttrs = ['path', 'domain', 'expires'];
+        const attrs = value.split(';').map((attr) => attr.trim());
+        const cookie: TCookie = {};
+        attrs.forEach((attrStr) => {
+            const [key, val] = attrStr.split('=');
+            if (!innerAttrs.includes(key.toLocaleLowerCase())) {
+                cookie['name'] = key;
+                cookie['value'] = val;
+            } else {
+                cookie[key.toLocaleLowerCase()] = val;
+            }
+        });
+        cookie.path = cookie.path || '/';
+        const oldCookieIndex = cookies.findIndex(
+            ({ name, domain, path }) =>
+                name === cookie.name && domain === cookie.domain && path === cookie.path
+        );
+        const isDelete = cookie.expires && new Date(cookie.expires).getTime() <= Date.now();
+        if (oldCookieIndex !== -1) {
+            isDelete
+                ? cookies.splice(oldCookieIndex, 1)
+                : cookies.splice(oldCookieIndex, 1, cookie);
+        } else {
+            !isDelete && cookies.push(cookie);
+        }
+    },
+});
+
+describe('test cookie utils', () => {
+
+    beforeEach(() => {
+        cookies = []
+    })
+
+    test('should get cookie value with name', () => {
+        document.cookie = 'a=1; domain=; path=/';
+        expect(cookie.getCookie('a')).toBe('1');
+        expect(cookie.getCookie('a', 'a=2; c=3;')).toBe('2')
+    })
+
+    test('should return all cookies object', () => {
+        document.cookie = 'a=1; domain=; path=/';
+        document.cookie = 'b=2; domain=; path=/';
+        expect(cookie.getAllCookies()).toEqual({ a: "1", b: "2" });
+    })
+
+    test('should support set cookie', () => {
+        cookie.setCookie('a', '1');
+        expect(cookie.getCookie('a')).toBe('1')
+
+        const day = 3;
+        cookie.setCookie('b', '2', day, 'test');
+        const foundCookie = cookies.find(item => item.name === 'b' && item.domain === 'test')
+        expect(foundCookie).not.toBeUndefined();
+
+        const expires = new Date(foundCookie!.expires as string).getTime();
+        const expiresNow = new Date(Date.now() + day * 24 * 60 * 60 * 1000).getTime()
+        expect(expires).toBeLessThan(expiresNow)
+    })
+
+    test('should support delete cookie', () => {
+        cookie.setCookie('a', 1);
+        cookie.deleteCookie('a')
+        expect(cookie.getCookie('a')).toBeNull();
+
+        cookie.setCookie('b', 1, 3, 'test', '/test');
+        cookie.deleteCookie('b')
+        expect(cookie.getCookie('b')).not.toBeNull();
+        cookie.deleteCookie('b', 'test', '/test')
+        expect(cookie.getCookie('b')).toBeNull();
+    })
+
+    test('should suppport delete all cookies', () => {
+        cookie.setCookie('a', 1, 3, 'test', '/');
+        cookie.setCookie('b', 2, 3, 'test', '/');
+        cookie.deleteAllCookies('', '/')
+        expect(cookie.getAllCookies()).not.toEqual({});
+        cookie.deleteAllCookies('test', '/')
+        expect(cookie.getAllCookies()).toEqual({});
+    })
+})