spiffs: move spiffsgen example with other storage related examples

examples/storage/spiffsgen/example_test.py

@@ -0,0 +1,34 @@
+from __future__ import print_function
+import os
+import sys
+import hashlib
+
+try:
+    import IDF
+except ImportError:
+    test_fw_path = os.getenv('TEST_FW_PATH')
+    if test_fw_path and test_fw_path not in sys.path:
+        sys.path.insert(0, test_fw_path)
+    import IDF
+
+
+@IDF.idf_example_test(env_tag='Example_WIFI')
+def test_examples_spiffsgen(env, extra_data):
+    # Test with default build configurations
+    dut = env.get_dut('spiffsgen', 'examples/storage/spiffsgen')
+    dut.start_app()
+
+    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())
+
+    # 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)
+
+
+if __name__ == '__main__':
+    test_examples_spiffsgen()