storage examples migrated to pytest

examples/storage/spiffsgen/pytest_spiffsgen_example.py

@@ -0,0 +1,24 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Unlicense OR CC0-1.0
+
+import hashlib
+import os
+
+import pytest
+from pytest_embedded import Dut
+
+
+@pytest.mark.esp32
+@pytest.mark.esp32c3
+def test_spiffsgen_example(dut: Dut) -> None:
+    # Test with default build configurations
+    base_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'spiffs_image')
+
+    # Expect hello.txt is read successfully
+    with open(os.path.join(base_dir, 'hello.txt'), 'r') as hello_txt:
+        dut.expect('Read from hello.txt: ' + hello_txt.read().rstrip())
+
+    # Expect alice.txt MD5 hash is computed accurately
+    with open(os.path.join(base_dir, 'sub', 'alice.txt'), 'rb') as alice_txt:
+        alice_md5 = hashlib.md5(alice_txt.read()).hexdigest()
+        dut.expect('Computed MD5 hash of alice.txt: ' + alice_md5)