test(coverage): improve test coverage from 57% to 80%+ (#327)
* test(coverage): improve test coverage from 57% to 80%+ Add 30 new test files with 861 additional test cases to improve overall test coverage from 57% to 80%+ (statement coverage). Key modules covered: - recognition_manager.py: 43% → 69% (audio device detection, transcription, model download, engine initialization, buffer management) - text_injector.py: improved coverage for X11/Wayland text injection, environment detection, clipboard fallback, shortcut injection - ibus_engine.py: 22% → 73% (engine lifecycle, text injection, socket server) - evdev_backend.py: 11% → 78% (device detection, key event handling) - pynput_backend.py: 43% → 76% (start/stop, key handling, callbacks) - keyboard_backends/__init__.py: 54% → improved (backend creation, env detection) - whispercpp_model_info.py: 32% → improved (GPU detection, model recommendations) - about_dialog.py, first_run_dialog.py, main.py, single_instance.py, common_types.py, config_manager.py, autostart_manager.py: various improvements All 1433 tests pass with proper test isolation to prevent mock pollution between test modules. * test(quality): audit and fix test quality issues Code review audit identified and fixed the following issues: - Remove bare try/except blocks that swallow all errors (7 tests fixed in recognition_manager_deep, replaced with proper assertions or deleted) - Delete source code inspection tests that read .py files as strings instead of testing behavior (deleted test_about_dialog_coverage.py and test_first_run_dialog_coverage.py entirely - ~35 useless tests removed) - Add meaningful assertions replacing weak assertIsNotNone/assertIsInstance checks (common_types_coverage, ibus_engine_coverage, keyboard_backends_extra) - Fix tests that mock the system under test instead of its dependencies (text_injector_extra now mocks subprocess.run instead of injection methods) - Add missing assertions to tests with no verification (ibus_engine focus_out, log window info, copy to clipboard) - Verify download tests check requests.get was called with correct URLs (coverage_boost download tests) - Fix pytest warning by renaming test_audio_input import to avoid pytest collecting it as a test function All 1356 tests pass with 0 failures and 0 warnings. Statement coverage: 80.3% (3257/4054 lines covered). * style(tests): fix black formatting and isort import ordering Auto-format all new test files with black and isort to pass CI lint checks. * fix(tests): resolve CI hangs and rename test files for clarity - Fix CI hangs by properly mocking gi/GTK/IBus in all test files - Fix sys.modules pollution in recognition manager tests by using tmp_path - Add pytest-timeout to prevent future hangs - Rename 28 test files to use descriptive, consistent names mapping to source modules * fix(tests): resolve Python 3.13 CI failures - Fix _load_stdlib_module() in test_recognition_manager_downloads.py to handle stdlib modules that are packages (directories with __init__.py) rather than single .py files. In Python 3.13, zipfile became a package, causing FileNotFoundError during test collection (exit code 2). - Fix invalid escape sequence '$' in test_cross_distro_compatibility.py by using a raw string. Python 3.13 reports this as SyntaxWarning and Python 3.14 will make it a SyntaxError. * fix(tests): use direct import for zipfile instead of _load_stdlib_module The _load_stdlib_module approach fails on Python 3.13 where zipfile is a package (zipfile/__init__.py). Loading it via spec_from_file_location with a custom name breaks relative imports inside the package (e.g. 'from ._path import ...' resolves to '_stdlib_zipfile._path' which doesn't exist). Simply import zipfile at module level before any test mocks can pollute sys.modules — this is safe because the module-level code runs during test collection, before any test fixtures or patches are applied. * fix(tests): mock gi/GTK in conftest to prevent CI hangs On CI, real PyGObject is installed and module-level imports in vocalinux source files (ibus_engine, tray_indicator, settings_dialog, etc.) trigger GTK initialization or IBus daemon connections that hang indefinitely in headless environments. pytest-timeout's signal-based timeout cannot interrupt these C-level blocking calls. Fix by mocking gi and gi.repository in conftest.py (which runs before any test module is collected), ensuring all test files are protected regardless of whether they remember to mock individually. Also add timeout-minutes: 10 to the CI test job as a safety net so that any remaining hangs fail fast instead of running indefinitely. * fix(tests): unconditionally mock gi in conftest for CI The previous 'if gi not in sys.modules' guard was ineffective on CI because PyGObject is installed via pip, so the real gi module is already loaded. This caused GTK initialization and IBus daemon connections that hang indefinitely in headless CI environments. Now unconditionally replace gi and gi.repository with mocks during test collection, regardless of whether the real package is installed. * fix(tests): reduce timeout to 10s and use thread-based timeout Use timeout_method=thread instead of signal (default) so that pytest-timeout can interrupt C-level blocking calls (GTK operations, socket accepts, subprocess waits) that the signal-based method cannot handle. Also reduce per-test timeout from 30s to 10s since no legitimate unit test should take longer, and hanging tests were consuming the entire CI job timeout budget. * fix(tests): set global socket timeout to prevent blocking on CI Tests in test_ibus_engine.py create real Unix sockets with daemon threads that block on socket.accept(). When tests fail or timeout, these threads remain blocked indefinitely, preventing pytest from completing. The thread-based timeout catches the hang but cannot terminate the blocking accept() call. Set socket.setdefaulttimeout(5) in conftest.py so all socket operations (accept, connect, recv) will raise socket.timeout after 5 seconds instead of blocking forever. * fix(tests): add cleanup fixture for IBus socket server threads Add autouse fixture that stops any leftover VocalinuxEngine socket server threads after each test. Tests that trigger _start_socket_server() spawn daemon threads blocking on socket.accept() that persist after the test completes, eventually causing pytest-timeout to kill the process. The cleanup fixture sets _server_running=False and closes the server socket, which unblocks the accept() call and allows the daemon thread to terminate. * fix(tests): reduce socket timeout to 0.1s to avoid slowing tests The 5-second socket timeout caused socket operations in daemon threads to block for 5 seconds per iteration before timing out, significantly slowing the test suite on CI. Reduce to 0.1s so blocking socket calls fail fast without noticeably impacting test execution time. * fix(tests): use 2s socket timeout and increase CI timeout to 15min The 0.1s socket timeout was too aggressive and caused legitimate test socket operations to fail. Use 2s which is long enough for test sockets to work but short enough to unblock daemon threads. Increase CI job timeout to 15 minutes to accommodate the socket timeout overhead from daemon threads that retry every 2 seconds. * fix(tests): block known-blocking daemon threads to prevent CI hangs Instead of using socket timeouts (which either break tests or are too slow), prevent specific known-blocking daemon threads from starting: - ibus_engine.server_thread: blocks on socket.accept() - evdev_backend._monitor_devices: blocks on select.select() These threads are identified by their target function name and skipped during Thread.start(). The thread is marked as started/stopped so join() calls in cleanup code don't raise RuntimeError. Test-created daemon threads (e.g. mock socket servers) are unaffected since they use different target function names. * fix(tests): patch Thread.join for Python 3.13 compatibility Python 3.13 changed threading internals — join() now uses _handle.join() which raises 'thread not started' for threads that were never actually started. Instead of trying to fake internal state, patch join() to be a no-op for threads that were skipped by our _safe_thread_start guard. This fixes the 2 remaining test_evdev_backend_ext failures on Python 3.13.
This commit is contained in:
Jatin K Malik
@@ -0,0 +1,378 @@
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"""
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Final comprehensive tests for IBus engine.
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These tests exercise code paths to improve coverage without platform-specific issues.
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"""
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import subprocess
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import sys
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import unittest
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from unittest.mock import MagicMock, patch
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# Mock GI imports before importing any vocalinux modules that use gi.
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# On CI, real gi/IBus may be installed; importing ibus_engine without mocks
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# would set IBUS_AVAILABLE=True and VocalinuxEngine would inherit from real
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# IBus.Engine, causing hangs when super().__init__() tries to connect to IBus.
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_mock_gi = MagicMock()
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_mock_ibus = MagicMock()
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_mock_glib = MagicMock()
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_mock_gobject = MagicMock()
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_mock_ibus.Engine = MagicMock
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_mock_glib.MainLoop = MagicMock
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_mock_gi_repo = MagicMock()
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_mock_gi_repo.IBus = _mock_ibus
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_mock_gi_repo.GLib = _mock_glib
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_mock_gi_repo.GObject = _mock_gobject
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sys.modules["gi"] = _mock_gi
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sys.modules["gi.repository"] = _mock_gi_repo
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# Force reload ibus_engine so it picks up mocks (in case it was already imported)
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for _key in list(sys.modules.keys()):
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if "vocalinux" in _key and "ibus_engine" in _key:
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del sys.modules[_key]
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class TestIBusSetupError(unittest.TestCase):
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"""Tests for IBusSetupError exception."""
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def test_ibus_setup_error_is_runtime_error(self):
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"""Test that IBusSetupError is a RuntimeError."""
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from vocalinux.text_injection.ibus_engine import IBusSetupError
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self.assertTrue(issubclass(IBusSetupError, RuntimeError))
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def test_ibus_setup_error_accepts_message(self):
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"""Test that IBusSetupError accepts a message."""
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from vocalinux.text_injection.ibus_engine import IBusSetupError
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msg = "Test error message"
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error = IBusSetupError(msg)
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self.assertEqual(str(error), msg)
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class TestEnsureIBusDir(unittest.TestCase):
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"""Tests for ensure_ibus_dir function."""
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@patch("pathlib.Path.mkdir")
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@patch("pathlib.Path.chmod")
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def test_ensure_ibus_dir_creates_and_secures(self, mock_chmod, mock_mkdir):
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"""Test that ensure_ibus_dir creates directory with proper permissions."""
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from vocalinux.text_injection.ibus_engine import ensure_ibus_dir
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ensure_ibus_dir()
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mock_mkdir.assert_called_once_with(parents=True, exist_ok=True)
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mock_chmod.assert_called_once_with(0o700)
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class TestIsIBusAvailable(unittest.TestCase):
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"""Tests for is_ibus_available function."""
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@patch("vocalinux.text_injection.ibus_engine.IBUS_AVAILABLE", True)
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def test_is_ibus_available_true(self):
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"""Test is_ibus_available when IBus is available."""
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from vocalinux.text_injection.ibus_engine import is_ibus_available
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result = is_ibus_available()
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# Verify the function returns True when IBUS_AVAILABLE flag is True
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self.assertTrue(result)
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# Verify it's checking the flag, not just always returning a value
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self.assertEqual(result, True)
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@patch("vocalinux.text_injection.ibus_engine.IBUS_AVAILABLE", False)
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def test_is_ibus_available_false(self):
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"""Test is_ibus_available when IBus is not available."""
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from vocalinux.text_injection.ibus_engine import is_ibus_available
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result = is_ibus_available()
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self.assertFalse(result)
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class TestIsIBusDaemonRunning(unittest.TestCase):
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"""Tests for is_ibus_daemon_running function."""
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@patch("subprocess.run")
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def test_is_ibus_daemon_running_true(self, mock_run):
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"""Test is_ibus_daemon_running returns True when daemon is running."""
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from vocalinux.text_injection.ibus_engine import is_ibus_daemon_running
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mock_run.return_value.returncode = 0
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result = is_ibus_daemon_running()
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self.assertTrue(result)
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@patch("subprocess.run")
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def test_is_ibus_daemon_running_false(self, mock_run):
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"""Test is_ibus_daemon_running returns False when daemon is not running."""
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from vocalinux.text_injection.ibus_engine import is_ibus_daemon_running
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mock_run.return_value.returncode = 1
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result = is_ibus_daemon_running()
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self.assertFalse(result)
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@patch("subprocess.run", side_effect=FileNotFoundError("pgrep not found"))
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def test_is_ibus_daemon_running_file_not_found(self, mock_run):
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"""Test is_ibus_daemon_running handles FileNotFoundError."""
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from vocalinux.text_injection.ibus_engine import is_ibus_daemon_running
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result = is_ibus_daemon_running()
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self.assertFalse(result)
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class TestIsIBusActiveInputMethod(unittest.TestCase):
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"""Tests for is_ibus_active_input_method function."""
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@patch.dict("os.environ", {"GTK_IM_MODULE": "ibus"})
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def test_is_ibus_active_gtk_im_module(self):
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"""Test detection via GTK_IM_MODULE."""
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from vocalinux.text_injection.ibus_engine import is_ibus_active_input_method
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result = is_ibus_active_input_method()
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self.assertTrue(result)
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@patch.dict("os.environ", {"QT_IM_MODULE": "ibus"}, clear=True)
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def test_is_ibus_active_qt_im_module(self):
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"""Test detection via QT_IM_MODULE."""
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from vocalinux.text_injection.ibus_engine import is_ibus_active_input_method
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result = is_ibus_active_input_method()
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self.assertTrue(result)
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@patch.dict("os.environ", {"XMODIFIERS": "@im=ibus"}, clear=True)
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def test_is_ibus_active_xmodifiers(self):
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"""Test detection via XMODIFIERS."""
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from vocalinux.text_injection.ibus_engine import is_ibus_active_input_method
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result = is_ibus_active_input_method()
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self.assertTrue(result)
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@patch.dict("os.environ", {}, clear=True)
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def test_is_ibus_active_not_active(self):
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"""Test when IBus is not the active input method."""
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from vocalinux.text_injection.ibus_engine import is_ibus_active_input_method
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result = is_ibus_active_input_method()
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self.assertFalse(result)
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class TestStartIBusDaemon(unittest.TestCase):
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"""Tests for start_ibus_daemon function."""
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@patch("vocalinux.text_injection.ibus_engine.is_ibus_daemon_running")
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def test_start_ibus_daemon_already_running(self, mock_is_running):
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"""Test when daemon is already running."""
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from vocalinux.text_injection.ibus_engine import start_ibus_daemon
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mock_is_running.return_value = True
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result = start_ibus_daemon()
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self.assertTrue(result)
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@patch("vocalinux.text_injection.ibus_engine.is_ibus_available")
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@patch("vocalinux.text_injection.ibus_engine.is_ibus_daemon_running")
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def test_start_ibus_daemon_not_available(self, mock_is_running, mock_available):
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"""Test when IBus is not available."""
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from vocalinux.text_injection.ibus_engine import start_ibus_daemon
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mock_is_running.return_value = False
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mock_available.return_value = False
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result = start_ibus_daemon()
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self.assertFalse(result)
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class TestGetExpectedComponentXml(unittest.TestCase):
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"""Tests for _get_expected_component_xml function."""
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def test_get_expected_component_xml_returns_string(self):
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"""Test that function returns valid XML string."""
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from vocalinux.text_injection.ibus_engine import _get_expected_component_xml
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result = _get_expected_component_xml()
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self.assertIsInstance(result, str)
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self.assertIn("<?xml", result)
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self.assertIn("</component>", result)
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def test_get_expected_component_xml_contains_vocalinux(self):
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"""Test that XML contains Vocalinux references."""
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from vocalinux.text_injection.ibus_engine import _get_expected_component_xml
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result = _get_expected_component_xml()
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self.assertIn("vocalinux", result.lower())
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class TestIsComponentUpToDate(unittest.TestCase):
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"""Tests for is_component_up_to_date function."""
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@patch("pathlib.Path.exists")
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def test_is_component_up_to_date_not_exists(self, mock_exists):
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"""Test when component file doesn't exist."""
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from vocalinux.text_injection.ibus_engine import is_component_up_to_date
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mock_exists.return_value = False
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result = is_component_up_to_date()
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self.assertFalse(result)
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@patch("vocalinux.text_injection.ibus_engine._get_expected_component_xml")
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@patch("pathlib.Path.read_text")
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@patch("pathlib.Path.exists")
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def test_is_component_up_to_date_matches(self, mock_exists, mock_read, mock_get_xml):
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"""Test when XML matches."""
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from vocalinux.text_injection.ibus_engine import is_component_up_to_date
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xml_content = "<?xml><component></component>"
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mock_exists.return_value = True
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mock_read.return_value = xml_content
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mock_get_xml.return_value = xml_content
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result = is_component_up_to_date()
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self.assertTrue(result)
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@patch("vocalinux.text_injection.ibus_engine._get_expected_component_xml")
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@patch("pathlib.Path.read_text")
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@patch("pathlib.Path.exists")
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def test_is_component_up_to_date_mismatch(self, mock_exists, mock_read, mock_get_xml):
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"""Test when XML differs."""
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from vocalinux.text_injection.ibus_engine import is_component_up_to_date
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mock_exists.return_value = True
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mock_read.return_value = "<?xml><old></old>"
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mock_get_xml.return_value = "<?xml><new></new>"
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result = is_component_up_to_date()
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self.assertFalse(result)
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class TestIsEngineRegistered(unittest.TestCase):
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"""Tests for is_engine_registered function."""
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@patch("vocalinux.text_injection.ibus_engine.IBUS_AVAILABLE", False)
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def test_is_engine_registered_not_available(self):
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"""Test when IBus is not available."""
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from vocalinux.text_injection.ibus_engine import is_engine_registered
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result = is_engine_registered()
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self.assertFalse(result)
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@patch("subprocess.run")
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@patch("vocalinux.text_injection.ibus_engine.IBUS_AVAILABLE", True)
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def test_is_engine_registered_true(self, mock_run):
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"""Test when engine is registered."""
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from vocalinux.text_injection.ibus_engine import ENGINE_NAME, is_engine_registered
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mock_run.return_value.stdout = f"other\n{ENGINE_NAME}\nmore"
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result = is_engine_registered()
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self.assertTrue(result)
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@patch("subprocess.run")
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@patch("vocalinux.text_injection.ibus_engine.IBUS_AVAILABLE", True)
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def test_is_engine_registered_false(self, mock_run):
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"""Test when engine is not registered."""
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from vocalinux.text_injection.ibus_engine import is_engine_registered
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mock_run.return_value.stdout = "other\nengines"
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result = is_engine_registered()
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self.assertFalse(result)
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class TestIsEngineActive(unittest.TestCase):
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"""Tests for is_engine_active function."""
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@patch("subprocess.run")
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def test_is_engine_active_true(self, mock_run):
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"""Test when engine is active."""
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from vocalinux.text_injection.ibus_engine import ENGINE_NAME, is_engine_active
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mock_run.return_value.returncode = 0
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mock_run.return_value.stdout = ENGINE_NAME
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result = is_engine_active()
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self.assertTrue(result)
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@patch("subprocess.run")
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def test_is_engine_active_false(self, mock_run):
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"""Test when engine is not active."""
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from vocalinux.text_injection.ibus_engine import is_engine_active
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mock_run.return_value.returncode = 0
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mock_run.return_value.stdout = "other"
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result = is_engine_active()
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self.assertFalse(result)
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class TestGetCurrentEngine(unittest.TestCase):
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"""Tests for get_current_engine function."""
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@patch("subprocess.run")
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def test_get_current_engine_success(self, mock_run):
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"""Test successfully retrieving current engine."""
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from vocalinux.text_injection.ibus_engine import get_current_engine
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mock_run.return_value.returncode = 0
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mock_run.return_value.stdout = "test-engine\n"
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result = get_current_engine()
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self.assertEqual(result, "test-engine")
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@patch("subprocess.run", side_effect=FileNotFoundError("ibus not found"))
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def test_get_current_engine_not_found(self, mock_run):
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"""Test when ibus command is not found."""
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from vocalinux.text_injection.ibus_engine import get_current_engine
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result = get_current_engine()
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self.assertIsNone(result)
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class TestSwitchEngine(unittest.TestCase):
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"""Tests for switch_engine function."""
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@patch("vocalinux.text_injection.ibus_engine.get_current_engine")
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@patch("time.sleep")
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@patch("subprocess.run")
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def test_switch_engine_success(self, mock_run, mock_sleep, mock_get_engine):
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"""Test successfully switching engines."""
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from vocalinux.text_injection.ibus_engine import switch_engine
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mock_get_engine.return_value = "vocalinux"
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result = switch_engine("vocalinux")
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self.assertTrue(result)
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|
||||
@patch("vocalinux.text_injection.ibus_engine.get_current_engine")
|
||||
@patch("time.sleep")
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||||
@patch("subprocess.run")
|
||||
def test_switch_engine_failure(self, mock_run, mock_sleep, mock_get_engine):
|
||||
"""Test when engine switch fails."""
|
||||
from vocalinux.text_injection.ibus_engine import switch_engine
|
||||
|
||||
mock_get_engine.return_value = "other"
|
||||
result = switch_engine("vocalinux")
|
||||
self.assertFalse(result)
|
||||
|
||||
|
||||
class TestIsEngineProcessRunning(unittest.TestCase):
|
||||
"""Tests for is_engine_process_running function."""
|
||||
|
||||
@patch("pathlib.Path.exists")
|
||||
def test_is_engine_process_running_no_pid_file(self, mock_exists):
|
||||
"""Test when PID file doesn't exist."""
|
||||
from vocalinux.text_injection.ibus_engine import is_engine_process_running
|
||||
|
||||
mock_exists.return_value = False
|
||||
result = is_engine_process_running()
|
||||
self.assertFalse(result)
|
||||
|
||||
|
||||
class TestStopEngineProcess(unittest.TestCase):
|
||||
"""Tests for stop_engine_process function."""
|
||||
|
||||
@patch("pathlib.Path.exists")
|
||||
def test_stop_engine_process_no_pid_file(self, mock_exists):
|
||||
"""Test when no PID file exists."""
|
||||
from vocalinux.text_injection.ibus_engine import stop_engine_process
|
||||
|
||||
mock_exists.return_value = False
|
||||
# Should not raise any exception
|
||||
result = stop_engine_process()
|
||||
# Verify the function handles missing PID file gracefully
|
||||
self.assertIsNone(result)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
unittest.main()
|
||||
Reference in New Issue
Block a user