Code cleanup, more tests

tests/test_main.py

@@ -1,4 +1,6 @@
 import importlib
+import runpy
+import pytest
 
 
 def test_main_module_has_main():
@@ -9,3 +11,84 @@ def test_main_module_has_main():
 def test_dunder_main_imports_main():
     m = importlib.import_module("bouquin.__main__")
     assert hasattr(m, "main")
+
+
+def test_dunder_main_calls_main(monkeypatch):
+    called = {"ok": False}
+
+    def fake_main():
+        called["ok"] = True
+
+    # Replace real main with a stub to avoid launching Qt event loop
+    monkeypatch.setenv("QT_QPA_PLATFORM", "offscreen")
+    # Ensure that when __main__ imports from .main it gets our stub
+    import bouquin.main as real_main
+
+    monkeypatch.setattr(real_main, "main", fake_main, raising=True)
+    # Execute the module as a script
+    runpy.run_module("bouquin.__main__", run_name="__main__")
+    assert called["ok"]
+
+
+def test_main_creates_and_shows(monkeypatch):
+    # Create a fake QApplication with the minimal API
+    class FakeApp:
+        def __init__(self, argv):
+            self.ok = True
+
+        def setApplicationName(self, *_):
+            pass
+
+        def setOrganizationName(self, *_):
+            pass
+
+        def exec(self):
+            return 0
+
+    class FakeWin:
+        def __init__(self, themes=None):
+            self.shown = False
+
+        def show(self):
+            self.shown = True
+
+    class FakeSettings:
+        def value(self, k, default=None):
+            return "light" if k == "ui/theme" else default
+
+    # Patch imports inside bouquin.main
+    import bouquin.main as m
+
+    monkeypatch.setattr(m, "QApplication", FakeApp, raising=True)
+    monkeypatch.setattr(m, "MainWindow", FakeWin, raising=True)
+
+    # Theme classes
+    class FakeTM:
+        def __init__(self, app, cfg):
+            pass
+
+        def apply(self, theme):
+            pass
+
+    class FakeTheme:
+        def __init__(self, s):
+            pass
+
+    class FakeCfg:
+        def __init__(self, theme):
+            self.theme = theme
+
+    monkeypatch.setattr(m, "ThemeManager", FakeTM, raising=True)
+    monkeypatch.setattr(m, "Theme", FakeTheme, raising=True)
+    monkeypatch.setattr(m, "ThemeConfig", FakeCfg, raising=True)
+
+    # get_settings() used inside main()
+    def fake_get_settings():
+        return FakeSettings()
+
+    monkeypatch.setattr(m, "get_settings", fake_get_settings, raising=True)
+
+    # Run
+    with pytest.raises(SystemExit) as e:
+        m.main()
+    assert e.value.code == 0