Add GNOME X11 and PulseAudio support

tests/test_desktop_compat.py

@@ -0,0 +1,55 @@
+import os
+import unittest
+from unittest import mock
+
+import audio
+import hotkey
+import paste
+
+
+class AudioBackendTests(unittest.TestCase):
+    def test_parec_is_preferred(self):
+        with mock.patch.object(audio.shutil, "which", side_effect=lambda cmd: f"/usr/bin/{cmd}"):
+            self.assertEqual(audio.recording_command()[0], "parec")
+
+    def test_pw_record_remains_the_fallback(self):
+        with mock.patch.object(
+            audio.shutil, "which", side_effect=lambda cmd: "/usr/bin/pw-record"
+            if cmd == "pw-record" else None,
+        ):
+            self.assertEqual(audio.recording_command()[0], "pw-record")
+
+
+class DesktopBackendTests(unittest.TestCase):
+    def test_x11_uses_xclip(self):
+        result = mock.Mock(returncode=0)
+        with mock.patch.dict(os.environ, {"XDG_SESSION_TYPE": "x11"}), \
+             mock.patch.object(paste.shutil, "which", return_value="/usr/bin/xclip"), \
+             mock.patch.object(paste.subprocess, "run", return_value=result) as run:
+            paste.copy("hello")
+        self.assertEqual(run.call_args.args[0][:3],
+                         ["xclip", "-selection", "clipboard"])
+
+    def test_x11_uses_xdotool(self):
+        result = mock.Mock(returncode=0, stderr="")
+        with mock.patch.dict(os.environ, {"XDG_SESSION_TYPE": "x11"}), \
+             mock.patch.object(paste.shutil, "which", return_value="/usr/bin/xdotool"), \
+             mock.patch.object(paste.time, "sleep"), \
+             mock.patch.object(paste.subprocess, "run", return_value=result) as run:
+            paste.press("ctrl+shift+v")
+        self.assertEqual(run.call_args.args[0],
+                         ["xdotool", "key", "--clearmodifiers", "ctrl+shift+v"])
+
+
+class GnomeShortcutTests(unittest.TestCase):
+    def test_accelerator_round_trip(self):
+        accelerator = hotkey.gnome_accelerator("Ctrl+Alt+A")
+        self.assertEqual(accelerator, "<Primary><Alt>a")
+        self.assertEqual(hotkey.display_accelerator(accelerator), "Ctrl+Alt+A")
+
+    def test_empty_gsettings_array(self):
+        self.assertEqual(hotkey._gsettings_array("@as []"), [])
+
+
+if __name__ == "__main__":
+    unittest.main()