diff --git a/pzztest.py b/pzztest.py
index d496d85..aee735f 100644
--- a/pzztest.py
+++ b/pzztest.py
@@ -1,41 +1,82 @@
 import argparse
+from pathlib import Path
 import pzztool
 import hashlib
 import os
 
 
-def argparser():
+TPL_MAGIC_FILE = b"\x00\x20\xAF\x30" # http://virtualre.rf.gd/index.php/TPL_(Format_de_fichier)
+
+def get_argparser():
     parser = argparse.ArgumentParser(description='TEST TOOL')
     parser.add_argument('input_path',  metavar='INPUT',  help='')
-    return parser.parse_args()
+
+    group = parser.add_mutually_exclusive_group(required=True)
+    group.add_argument('-tdc',  '--test-decompress-compress',  action='store_true', help="")
+    group.add_argument('-tbup', '--test-batch-unpack-pack',    action='store_true', help="""
+        -tbup source_pzz_folder
+        source_pzz_folder  : put all pzz in this folder
+        pzzu : will be created with all unpacked pzz from pzz folder
+        pzz2 : will be created with all packed pzz from pzzu folder
+        then it will print the file name when file sha256 is different between source_pzz_folder and pzz2 folder""")
+    group.add_argument('-tctplh', '--test-check-tpl-headers',   action='store_true', help="-tctplh afs_data_folder : check all files headers in the afs_data and print those who have the tpl magicfile")
+    group.add_argument('-td', '--test-decompress',              action='store_true', help="""
+        pzz : put all pzz in this folder
+        then tip "pzztool.py -td"
+        decompressed_tpl_files : will be created with all decompressed files from pzzu having the tpl header
+        The script will then check that tpls are correctly decompressed with their specific characteristics""")
+
+    return parser
 
 
 if __name__ == '__main__':
-    listofinvalid = []
-    args = argparser()
+    args = get_argparser().parse_args()
 
-    for filename in os.listdir(args.input_path):
-        file = open(os.path.join(args.input_path, filename), 'rb')
-        original_bytes = file.read()
-        decomp_bytes = pzztool.pzz_decompress(original_bytes)
-        recomp_bytes = pzztool.pzz_compress(decomp_bytes)
+    p_input = Path(args.input_path)
 
-        original_digest = hashlib.sha256(original_bytes).hexdigest()
-        recomp_digest = hashlib.sha256(recomp_bytes).hexdigest()
+    if args.test_decompress_compress:
+        print("# TEST : DECOMPRESS COMPRESS")
+        listofinvalid = []
 
-        if original_digest != recomp_digest:
-            listofinvalid.append(f"{filename} : ({original_digest}) ({recomp_digest})")
-        file.close()
+        for filename in os.listdir(args.input_path):
+            file = open(os.path.join(args.input_path, filename), 'rb')
+            original_bytes = file.read()
+            decomp_bytes = pzztool.pzz_decompress(original_bytes)
+            recomp_bytes = pzztool.pzz_compress(decomp_bytes)
 
-    for invalid in listofinvalid:
-        print(invalid)
-    
-    """
-        Code pour le developement --> pzztool.py -a a
-        compare le sha256 de chaque PZZ du dossier pzz et pzz2 puis affiche le nom de fichier en cas de différence
-    import hashlib
-    for pzz_file in listdir("pzz"):
-        with open("pzz/"+pzz_file, "rb") as f1, open("pzz2/"+pzz_file, "rb") as f2:
-            if hashlib.sha256( f1.read() ).hexdigest() != hashlib.sha256( f2.read() ).hexdigest() :
-                print(pzz_file)
-    """
+            original_digest = hashlib.sha256(original_bytes).hexdigest()
+            recomp_digest = hashlib.sha256(recomp_bytes).hexdigest()
+
+            if original_digest != recomp_digest:
+                listofinvalid.append(f"{filename} : ({original_digest}) ({recomp_digest})")
+            file.close()
+
+        for invalid in listofinvalid:
+            print(invalid)
+    elif args.test_batch_unpack_pack:
+        # compare le sha256 de chaque PZZ du dossier passé en argument et pzz2 puis affiche le nom de fichier en cas de différence
+        print("# TEST : BATCH UNPACK PACK")
+        os.system("python pzztool.py -bu "+args.input_path+" pzzu -v")
+        os.system("python pzztool.py -bp pzzu pzz2 -v")
+
+        invalid_files_count = 0
+        for pzz_file_name in os.listdir(p_input):
+            with open(p_input / pzz_file_name, "rb") as f1, open(f"pzz2/{pzz_file_name}", "rb") as f2:
+                if hashlib.sha256( f1.read() ).hexdigest() != hashlib.sha256( f2.read() ).hexdigest() :
+                    print(f"ERROR - INVALID FILE : {pzz_file_name}")
+                    invalid_files_count +=1
+        print(f"Invalid files : {invalid_files_count}/{len(os.listdir(p_input))}")
+    elif args.test_check_tpl_headers:
+        # Démontre que SEUL les TPLs ont ce magicfile
+        # TEST OK
+        print("# TEST : CHECK TPLs HEADERS")
+        for afs_data_filename in os.listdir(p_input):
+            with open(p_input / afs_data_filename, "rb") as afs_data_file:
+                if TPL_MAGIC_FILE == afs_data_file.read(4) and Path(afs_data_filename).suffix != ".tpl":
+                    print(f"TPL magicfile found : afs_data.afs/{afs_data_filename}")
+    elif args.test_check_decompress:
+        print("# TEST : CHECK DECOMPRESS")
+        # create decompressed_tpl_files folder
+        # copy pzzu files having the tpl header inside decompressed_tpl_files
+        # check that the length is a multiple of 32
+