Added FATFS partition parser

components/fatfs/test_fatfsgen/test_fatfsparse.py

@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+# SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
+
+import os
+import shutil
+import unittest
+from subprocess import STDOUT, run
+
+from test_utils import generate_test_dir_2
+
+
+class FatFSGen(unittest.TestCase):
+    def setUp(self) -> None:
+        os.makedirs('output_data')
+        generate_test_dir_2()
+
+    def tearDown(self) -> None:
+        shutil.rmtree('output_data')
+        shutil.rmtree('Espressif')
+
+        if os.path.exists('fatfs_image.img'):
+            os.remove('fatfs_image.img')
+
+    @staticmethod
+    def test_gen_parse() -> None:
+        run([
+            'python',
+            f'{os.path.join(os.path.dirname(__file__), "..", "fatfsgen.py")}',
+            'output_data/tst_str'
+        ], stderr=STDOUT)
+
+        run(['python', '../fatfsgen.py', 'output_data/tst_str'], stderr=STDOUT)
+        run(['python', '../fatfsparse.py', 'fatfs_image.img'], stderr=STDOUT)
+
+        assert set(os.listdir('Espressif')) == {'TEST', 'TESTFILE'}
+        with open('Espressif/TESTFILE', 'rb') as in_:
+            assert in_.read() == b'ahoj\n'
+
+        assert set(os.listdir('Espressif/TEST')) == {'TEST', 'TESTFIL2'}
+        with open('Espressif/TEST/TESTFIL2', 'rb') as in_:
+            assert in_.read() == b'thisistest\n'
+        assert set(os.listdir('Espressif/TEST/TEST')) == {'LASTFILE.TXT'}
+
+        with open('Espressif/TEST/TEST/LASTFILE.TXT', 'rb') as in_:
+            assert in_.read() == b'deeptest\n'
+
+
+if __name__ == '__main__':
+    unittest.main()