diff --git a/LogarithmPlotter/__init__.py b/LogarithmPlotter/__init__.py
index b3140ad..2bd4967 100644
--- a/LogarithmPlotter/__init__.py
+++ b/LogarithmPlotter/__init__.py
@@ -39,7 +39,3 @@ if not is_release and which('git') is not None:
             # Date cannot be parsed, not git root?
             pass
 
-if __name__ == "__main__":
-    from .logarithmplotter import run
-
-    run()
diff --git a/tests/python/test_native.py b/tests/python/test_native.py
new file mode 100644
index 0000000..edaf88e
--- /dev/null
+++ b/tests/python/test_native.py
@@ -0,0 +1,57 @@
+"""
+ *  LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
+ *  Copyright (C) 2021-2024  Ad5001
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
+
+import pytest
+from os.path import exists
+
+from PySide6.QtCore import QEvent, QObject, QUrl
+from PySide6.QtGui import QActionEvent, QFileOpenEvent
+
+from LogarithmPlotter.util.native import MacOSFileOpenHandler
+
+
+class LoadDiagramCalledSuccessfully(Exception): pass
+
+
+class MockIO:
+    def loadDiagram(self, file_name):
+        assert type(file_name) == str
+        raise LoadDiagramCalledSuccessfully()
+
+
+class MockFileOpenEvent(QEvent):
+    def __init__(self, file):
+        super(QEvent.FileOpen)
+        self._file = file
+
+    def file(self):
+        return self._file
+
+
+def test_native():
+    event_filter = MacOSFileOpenHandler()
+    # Nothing should happen here. The module hasn't been initialized
+    event_filter.eventFilter(None, QFileOpenEvent(QUrl.fromLocalFile("ci/test1.lpf")))
+    with pytest.raises(LoadDiagramCalledSuccessfully):
+        event_filter.init_io(MockIO()) # Now that we've initialized, the loadDiagram function should be called.
+    with pytest.raises(LoadDiagramCalledSuccessfully):
+        # And now it will do so every time an event is loaded.
+        event_filter.eventFilter(None, QFileOpenEvent(QUrl.fromLocalFile("ci/test1.lpf")))
+    # Check what happens when a non file open qevent is launched against it.
+    event_filter.eventFilter(QObject(), QEvent(QEvent.ActionAdded))
+
diff --git a/tests/python/test_update.py b/tests/python/test_update.py
new file mode 100644
index 0000000..385d12a
--- /dev/null
+++ b/tests/python/test_update.py
@@ -0,0 +1,63 @@
+"""
+ *  LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
+ *  Copyright (C) 2021-2024  Ad5001
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
+from sys import argv
+
+import pytest
+from PySide6.QtCore import QThreadPool
+
+from LogarithmPlotter import __VERSION__ as version
+from LogarithmPlotter.util.update import UpdateInformation, UpdateCheckerRunnable, check_for_updates
+
+
+class MockWindow:
+    def showAlert(self, msg): raise Exception(msg)
+    def showUpdateMenu(self, msg): pass
+
+def check_update_callback_type(show_alert, msg_text, update_available):
+    assert type(show_alert) == bool
+    assert type(msg_text) == str
+    assert type(update_available) == bool
+
+def test_update():
+    def check_older(show_alert, msg_text, update_available):
+        check_update_callback_type(show_alert, msg_text, update_available)
+        assert update_available
+        assert show_alert
+
+    def check_newer(show_alert, msg_text, update_available):
+        check_update_callback_type(show_alert, msg_text, update_available)
+        assert not update_available
+        assert not show_alert
+
+    update_info_older = UpdateInformation()
+    update_info_older.got_update_info.connect(check_older)
+    update_info_newer = UpdateInformation()
+    update_info_newer.got_update_info.connect(check_newer)
+    runnable = UpdateCheckerRunnable('1.0.0', update_info_newer)
+    runnable.run()
+    runnable = UpdateCheckerRunnable('0.1.0', update_info_older)
+    runnable.run()
+    runnable = UpdateCheckerRunnable('0.5.0+dev0+git20240101', update_info_older)
+    runnable.run()
+
+def test_update_checker():
+    check_for_updates('0.6.0', MockWindow())
+    assert QThreadPool.globalInstance().activeThreadCount() == 1
+    argv.append("--no-check-for-updates")
+    check_for_updates('0.6.0', MockWindow())
+    assert QThreadPool.globalInstance().activeThreadCount() < 2 # No new update checks where added