diff --git a/test_emotion_analysis.py b/test_emotion_analysis.py
new file mode 100644
index 0000000..a8e040c
--- /dev/null
+++ b/test_emotion_analysis.py
@@ -0,0 +1,36 @@
+import unittest
+from unittest.mock import patch, mock_open
+from emotion_analysis import emotion_aly
+
+
+class TestEmotionAnalysis(unittest.TestCase):
+    # 测试 emotion_aly 函数在文件有数据时的反应
+    @patch('builtins.open', new_callable=mock_open, read_data='这场比赛真的很棒！\nAI 技术越来越强大\n非常激动！')
+    @patch('os.path.exists', return_value=True)
+    @patch('matplotlib.pyplot.savefig')
+    @patch('matplotlib.pyplot.show') 
+    @patch('matplotlib.pyplot.pie')
+    @patch('matplotlib.pyplot.tight_layout')
+    def test_emotion_aly(self, mock_tight_layout, mock_pie, mock_show, mock_savefig, mock_exists, mock_file):
+        search_word = "test_aly"
+        emotion_aly(search_word)
+        
+        # 验证 savefig 方法被调用
+        mock_savefig.assert_called_once()
+        # 验证 pie 方法被调用
+        mock_pie.assert_called_once()
+
+    # 测试 emotion_aly 函数在文件为空时的反应
+    @patch('builtins.open', new_callable=mock_open, read_data='')
+    @patch('os.path.exists', return_value=True)
+    @patch('matplotlib.pyplot.savefig')
+    @patch('matplotlib.pyplot.show')
+    def test_empty_file(self, mock_show, mock_savefig, mock_exists, mock_file):
+        search_word = "test_empty"
+        emotion_aly(search_word)
+        
+        # 验证在文件为空的情况下，不调用 savefig 方法
+        mock_savefig.assert_not_called()
+
+if __name__ == "__main__":
+    unittest.main()