diff --git a/test/.gitkeep b/test/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/test/regression-testing.sh b/test/regression-testing.sh
new file mode 100755
index 0000000..16e58aa
--- /dev/null
+++ b/test/regression-testing.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# TODO: Compatible with Windows operating system
+jyyslice_md_path=$(dirname $(dirname $(readlink -f $0)))
+export JYYSLICE_MD_PATH=$jyyslice_md_path
+
+# unit
+poetry run python unit/author.py
+
+# TODO: other tests
diff --git a/test/unit/author.py b/test/unit/author.py
new file mode 100644
index 0000000..12c0a46
--- /dev/null
+++ b/test/unit/author.py
@@ -0,0 +1,135 @@
+# unit test for function process_front_matter
+# process_front_matter input is st.content
+# process_front_matter output is st.author_template
+
+
+import os
+import sys
+import unittest
+
+from jinja2 import Template  # lib used in converter.py
+
+# add project root to sys.path, otherwise, the import below will fail
+sys.path = [os.environ["JYYSLICE_MD_PATH"]] + sys.path
+
+
+import src.settings as st
+from src.converter import process_front_matter
+
+# 这里没有使用项目中的template, 而是针对其使用的模版变量专门测试
+#! 假如未来模版内容修改, 当前单元测试无法感知, 导致作为回归测试的话会落后版本
+AUTHOR_TEMPLATE_STRING = """
+{{ author.name }}
+{{ author.url }}
+{% for department in departments %}
+    {{ department.name }}
+    {{ department.url }}
+    {{ department.img }}
+{% endfor %}
+"""
+
+
+class TestProcessFrontMatter(unittest.TestCase):
+    def single_test(self, input: str, output: str):
+        """
+        单次测试
+        Args:
+            input (str): 要测试的markdown头
+            output (str): 要测试的头部分的输出
+        """
+        st.content = input
+        st.author_template = Template(AUTHOR_TEMPLATE_STRING)  # init st.author_template
+        process_front_matter()
+        self.assertEqual(st.author_template, output)
+
+    def test_not_front_matter(self):
+        self.single_test("", "")
+
+    def test_common_json(self):
+        author_info_md = (
+            """{
+    "author": {
+        "name": "蒋炎岩",
+        "url": "https://ics.nju.edu.cn/~jyy/"
+    },
+    "departments": [
+        {
+            "name": "  南京大学  ",
+            "url": "https://www.nju.edu.cn/main.htm",
+            "img": "./img/nju-logo.jpg"
+        },
+        {
+            "name": "计算机科学与技术系",
+            "url": "https://cs.nju.edu.cn/main.htm",
+            "img": "./img/njucs-logo.jpg"
+        },
+        {
+            "name": "计算机软件研究所",
+            "url": "https://www.nju.edu.cn/main.htm",
+            "img": "./img/ics-logo.png"
+        }
+    ]
+}"""
+            + st.op_front_matter
+        )
+        expected_output = """
+蒋炎岩
+https://ics.nju.edu.cn/~jyy/
+
+    　　南京大学　　
+    https://www.nju.edu.cn/main.htm
+    ./img/nju-logo.jpg
+
+    计算机科学与技术系
+    https://cs.nju.edu.cn/main.htm
+    ./img/njucs-logo.jpg
+
+    计算机软件研究所
+    https://www.nju.edu.cn/main.htm
+    ./img/ics-logo.png
+"""
+
+        self.single_test(author_info_md, expected_output)
+
+    def test_common_yaml(self):
+        author_info_md = (
+            """author:
+    name: 蒋炎岩
+    url: https://ics.nju.edu.cn/~jyy/
+
+departments:
+    - name: "  南京大学  "
+      url: https://www.nju.edu.cn/main.htm,
+      img: ./img/nju-logo.jpg
+
+    - name: 计算机科学与技术系
+      url: https://cs.nju.edu.cn/main.htm,
+      img: ./img/njucs-logo.jpg
+
+    - name: 计算机软件研究所
+      url: https://www.nju.edu.cn/main.htm,
+      img: ./img/ics-logo.png"""
+            + st.op_front_matter
+        )
+        expected_output = """
+蒋炎岩
+https://ics.nju.edu.cn/~jyy/
+
+    　　南京大学　　
+    https://www.nju.edu.cn/main.htm,
+    ./img/nju-logo.jpg
+
+    计算机科学与技术系
+    https://cs.nju.edu.cn/main.htm,
+    ./img/njucs-logo.jpg
+
+    计算机软件研究所
+    https://www.nju.edu.cn/main.htm,
+    ./img/ics-logo.png
+"""
+
+        self.single_test(author_info_md, expected_output)
+
+
+if __name__ == "__main__":
+    unittest.main()