Let the Windows job read the merged suite

The merge put a Windows runner under tests master wrote for two systems,
and 21 of them fell over on it. Two were the quoting: `command_for` goes
through shlex now, so a Windows path comes back in quotes, and the two
tests that read the command as a string were reading it as a Linux one.
They ask through the same join instead.

The other nineteen are `integrate.py`, which writes the menu entry and
the login item a downloaded build installs for itself. There are two
downloads, an AppImage and a disk image, so the module has a Linux half
and a macOS half and nothing a Windows host would run: its tests hand
the fake home over in $HOME, which Windows does not read, and compare
paths that start at the root. They carry `@posix_only`, which comes off
again the day there is a Windows build to integrate.

CONTRIBUTING.md

@@ -70,7 +70,7 @@ there can tell that apart from an empty device list, which only means the tool
 that lists them is not installed.
 
 The tests are split along the same line, and almost none of them are skipped.
-1104 of the 1147 run on any machine, including every line of the Wayland, X11,
+1084 of the 1147 run on any machine, including every line of the Wayland, X11,
 macOS and Windows backends: the programs are faked at `shutil.which`, the
 frameworks and system libraries at the one function that loads them
 (`paste._win_api`, `hotkey._win_input`). A test class says which system it is
@@ -88,8 +88,11 @@ is sitting at. What the systems owe in common is written once as a contract
 class and subclassed by each of them.
 
 The 43 that do carry `@linux_only` are the ones that would need the real thing:
-the `/dev/input` listener, KDE's shortcut file, GNOME's gsettings. Mark a test
-that way only when faking it would leave nothing to test. A test that quietly
+the `/dev/input` listener, KDE's shortcut file, GNOME's gsettings. The 20 with
+`@posix_only` are `integrate.py`, the menu entry and the login item a downloaded
+build writes for itself: there are two downloads, an AppImage and a disk image,
+so that module has no Windows half for a Windows host to check. Mark a test
+either way only when faking it would leave nothing to test. A test that quietly
 stops running on the platform you are porting to protects nothing.
 
 ## What a pull request should carry

tests/support.py

@@ -40,6 +40,18 @@ linux_only = unittest.skipUnless(
     "covers the Linux desktop stack (PipeWire, wl-clipboard, ydotool, KDE)",
 )
 
+# The launchers a downloaded build writes for itself. There are two downloads,
+# an AppImage and a disk image, so `integrate` has a Linux half and a macOS half
+# and no third one, and the tests that pin them stand in a home laid out the way
+# those two systems lay one out: paths that start at the root, a $HOME the
+# library reads, a symlink for the command. None of that is a Windows machine,
+# where the same code never runs. A Windows build would add an entry there and
+# take the mark off these.
+posix_only = unittest.skipIf(
+    sys.platform == "win32",
+    "covers what an AppImage and a .app write into the desktop they landed on",
+)
+
 
 def _no_network(*args, **kwargs):
     raise AssertionError(

tests/test_integrate.py

@@ -15,6 +15,7 @@ import unittest
 from unittest import mock
 
 from dikte import integrate
+from tests.support import posix_only
 
 
 class Frozen:
@@ -75,6 +76,7 @@ class WhatToStart(unittest.TestCase):
     def test_a_checkout_names_this_interpreter_and_the_entry_point(self):
         self.assertFalse(integrate.packaged())
 
+    @posix_only
     def test_an_appimage_names_the_file_and_not_the_mount(self):
         """The mount is a fresh /tmp path every run; a shortcut written to it
         would work until the next login and never again."""
@@ -83,6 +85,7 @@ class WhatToStart(unittest.TestCase):
             self.assertEqual(str(integrate.target()),
                              "/home/someone/Downloads/Dikte.AppImage")
 
+    @posix_only
     def test_a_mac_names_the_bundle_and_not_the_executable_inside_it(self):
         with Frozen("/Applications/Dikte.app/Contents/MacOS/Dikte",
                     platform="darwin"):
@@ -95,6 +98,7 @@ class WhatToStart(unittest.TestCase):
 class BundledTools(unittest.TestCase):
     """The ffmpeg the disk image carries, and how anything finds it."""
 
+    @posix_only
     def test_a_mac_looks_beside_the_bundle_not_beside_the_executable(self):
         with Frozen("/Applications/Dikte.app/Contents/MacOS/Dikte",
                     platform="darwin"):
@@ -213,6 +217,7 @@ class Certificates(unittest.TestCase):
             self.assertIsNone(integrate.use_system_certificates())
 
 
+@posix_only
 class Linux(Home):
     def install(self, appimage, force=False):
         with Frozen("/tmp/.mount_x/usr/bin/dikte", appimage=str(appimage),
@@ -348,6 +353,7 @@ class Linux(Home):
             self.assertEqual(integrate.ensure(), [])
 
 
+@posix_only
 class MacOS(Home):
     def agent(self):
         return self.home / "Library/LaunchAgents/io.github.yusufipk.dikte.plist"

tests/test_ipc.py

@@ -8,6 +8,7 @@ answers by saying nothing at all.
 import json
 import os
 import pathlib
+import shlex
 import sys
 import unittest
 from unittest import mock
@@ -65,9 +66,10 @@ class Paths(unittest.TestCase):
         self.assertTrue(os.path.exists(ipc.script_path()))
 
     def test_the_shortcut_command_runs_it_with_this_interpreter(self):
-        command = ipc.command_for("toggle")
-        self.assertTrue(command.startswith(sys.executable))
-        self.assertTrue(command.endswith(" toggle"))
+        # Read back through the same quoting it went out with: a Windows path
+        # is spelled with backslashes and comes out of the join quoted.
+        self.assertEqual(shlex.split(ipc.command_for("toggle")),
+                         [sys.executable, ipc.script_path(), "toggle"])
 
     def test_a_packaged_build_names_itself_and_no_interpreter(self):
         """There is no __main__.py on disk in one, and sys.executable is the

tests/test_ui.py

@@ -21,6 +21,7 @@ from dikte import cleanup
 from dikte import config as cfg
 from dikte import ggml
 from dikte import hotkey
+from dikte import ipc
 from dikte import overlay as overlay_module
 from dikte import paste
 from dikte import settings_ui
@@ -283,7 +284,7 @@ class Settings(DikteTest):
         text = self.shortcut_tab_text(window)
         self.assertIn("i3 keeps no shortcut registry", text)
         self.assertNotIn("KWin", text)
-        self.assertIn("__main__.py toggle", text)
+        self.assertIn(ipc.command_for("toggle"), text)
         # Not a choice to offer where it is the only mechanism there is.
         self.assertTrue(window.evdev_enabled.isHidden())
         self.assertFalse([button for button in
@@ -460,7 +461,7 @@ class MacSettings(Settings):
         text = self.shortcut_tab_text(window)
         self.assertIn("Dikte asks macOS for these combinations", text)
         self.assertNotIn("KWin", text)
-        self.assertNotIn("__main__.py toggle", text)
+        self.assertNotIn(ipc.command_for("toggle"), text)
 
     def test_the_paste_keys_on_offer_are_the_ones_a_mac_uses(self):
         window = self.window(cfg.Config())
@@ -484,7 +485,7 @@ class KdeSettings(Settings):
         self.assertIn("KWin only reads shortcut settings at startup", text)
         self.assertIn("Install as a KDE shortcut", text)
         self.assertNotIn("keeps no shortcut registry", text)
-        self.assertNotIn("__main__.py toggle", text)
+        self.assertNotIn(ipc.command_for("toggle"), text)
         # Here it is a choice: the wait for the next login, or the key press
         # reaching the focused application as well.
         self.assertFalse(window.evdev_enabled.isHidden())