Add workflow to test market_time.py

.github/workflows/test_market_time.yaml

@@ -0,0 +1,33 @@
+name: Run Tests on PR with changes to market_time.py
+
+on:
+  pull_request:
+    paths:
+      - 'MarketTime/market_time.py'
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.9
+
+    - name: Copy MarketTime/ folder to tests/ directory
+      run: |
+        cp -r MarketTime/ tests/
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt  # 如果有必要的話，根據您的專案設置來安裝相關的依賴
+
+    - name: Run tests
+      run: |
+        python -m unittest tests/test_market_time.py