Add all mecanism about the blender unit test

tests/unit_test/test_b3d_install_addon.py

@@ -0,0 +1,20 @@
+import unittest
+import bpy
+
+
+class ActivateAddon(unittest.TestCase):
+    """Activate the Blender addon"""
+
+    def setUp(self) -> None:
+        pass
+
+    def test_activate_addon(self):
+        """Activate the blender addon 'moderlab_plugin'"""
+        addon = bpy.ops.preferences.addon_enable(module='moderlab_type')
+        self.assertEqual({'FINISHED'}, addon)
+
+
+if __name__ == '__main__':
+    import sys
+    sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else [])
+    unittest.main()