修改README

README.md

@@ -33,6 +33,9 @@
 2. 在根目录运行：```npm install```
 3. 在VSCode编译器里按F5开始运行服务器
 
+## 测试
+在根目录运行```npm test```
+
 ## 错误代码：
 - 501：数据Excel文件不在指定位置
 - 502：数据Excel文件找不到需要的表格
@@ -82,6 +85,9 @@
 2. In the root directory, run ```npm install```
 3. Using VScode IDE, press F5 to start the server.
 
+## Testing
+Run ```npm test``` in the root directory
+
 ## Error Code:
 - 501: The Excel file storing the data is missing
 - 502: The Excel sheet doesn't exist in the Excel file (Excel file is corrupted)

src/__test__/utils.ts

+export function testDateError(strategy) {
+    expect(() => strategy.execute()).toThrow("Date parameter is required.");
+    expect(() => strategy.execute({})).toThrow("Date parameter is required.");
+    expect(() => strategy.execute({ query: {} })).toThrow("Date parameter is required.");
+}
+
+export function testSightError(strategy) {
+    expect(() => strategy.execute()).toThrow("Date and sight parameters are required.");
+    expect(() => strategy.execute({})).toThrow("Date and sight parameters are required.");
+    expect(() => strategy.execute({ query: {} })).toThrow("Date and sight parameters are required.");
+    expect(() => strategy.execute({ query: { date: '2023-07-01' } })).toThrow('Date and sight parameters are required.');
+    expect(() => strategy.execute({ query: { sight: 'SomeSight' } })).toThrow('Date and sight parameters are required.');
+}
+
+export function testYearError(strategy) {
+    expect(() => strategy.execute()).toThrow("Year parameter is required.");
+    expect(() => strategy.execute({})).toThrow("Year parameter is required.");
+    expect(() => strategy.execute({ query: {} })).toThrow("Year parameter is required.");
+}
+
+export function testStrategy(strategy, params, truthValue) {
+    expect(strategy.execute(params)).toEqual(truthValue);
+}
\ No newline at end of file