Move generation of AASX files to __init__.py

As other tests also need AASX files, we cannot generate  AASX files in ComplianceToolAASXTest, because other tests can be run before or without tests from ComplianceToolAASXTest.

test/compliance_tool/__init__.py

@@ -0,0 +1,28 @@
+import os
+import zipfile
+
+AASX_FILES = ("test_demo_full_example_json_aasx",
+              "test_demo_full_example_xml_aasx",
+              "test_demo_full_example_xml_wrong_attribute_aasx",
+              "test_empty_aasx")
+
+
+def _zip_directory(directory_path, zip_file_path):
+    """Zip a directory recursively."""
+    with zipfile.ZipFile(zip_file_path, 'w', zipfile.ZIP_DEFLATED) as zipf:
+        for root, _, files in os.walk(directory_path):
+            for file in files:
+                file_path = os.path.join(root, file)
+                arcname = os.path.relpath(file_path, directory_path)
+                zipf.write(file_path, arcname=arcname)
+
+
+def generate_aasx_files():
+    """Zip dirs and create test AASX files."""
+    script_dir = os.path.dirname(__file__)
+    for i in AASX_FILES:
+        _zip_directory(os.path.join(script_dir, "files", i),
+                       os.path.join(script_dir, "files", i.rstrip("_aasx") + ".aasx"))
+
+
+generate_aasx_files()

test/compliance_tool/test_compliance_check_aasx.py

@@ -6,36 +6,12 @@
 # SPDX-License-Identifier: MIT
 import os
 import unittest
-import zipfile
 
 from basyx.aas.compliance_tool import compliance_check_aasx as compliance_tool
 from basyx.aas.compliance_tool.state_manager import ComplianceToolStateManager, Status
 
 
 class ComplianceToolAASXTest(unittest.TestCase):
-    AASX_FILES = ("test_demo_full_example_json_aasx",
-                  "test_demo_full_example_xml_aasx",
-                  "test_demo_full_example_xml_wrong_attribute_aasx",
-                  "test_empty_aasx")
-
-    @classmethod
-    def setUpClass(cls):
-        """Zip dirs and create test AASX files."""
-        script_dir = os.path.dirname(__file__)
-        for i in cls.AASX_FILES:
-            cls._zip_directory(os.path.join(script_dir, "files", i),
-                               os.path.join(script_dir, "files", i.rstrip("_aasx") + ".aasx"))
-
-    @classmethod
-    def _zip_directory(cls, directory_path, zip_file_path):
-        """Zip a directory recursively."""
-        with zipfile.ZipFile(zip_file_path, 'w', zipfile.ZIP_DEFLATED) as zipf:
-            for root, _, files in os.walk(directory_path):
-                for file in files:
-                    file_path = os.path.join(root, file)
-                    arcname = os.path.relpath(file_path, directory_path)
-                    zipf.write(file_path, arcname=arcname)
-
     def test_check_deserialization(self) -> None:
         manager = ComplianceToolStateManager()
         script_dir = os.path.dirname(__file__)