diff lockfile-0.10.2/test/compliancetest.py @ 33:7ceb967147c3

start xena with no gui add library files

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lockfile-0.10.2/test/compliancetest.py	Wed Jul 22 13:24:44 2015 -0700
@@ -0,0 +1,261 @@
+import os
+import threading
+import shutil
+
+import lockfile
+
+class ComplianceTest(object):
+    def __init__(self):
+        self.saved_class = lockfile.LockFile
+
+    def _testfile(self):
+        """Return platform-appropriate file.  Helper for tests."""
+        import tempfile
+        return os.path.join(tempfile.gettempdir(), 'trash-%s' % os.getpid())
+
+    def setup(self):
+        lockfile.LockFile = self.class_to_test
+
+    def teardown(self):
+        try:
+            tf = self._testfile()
+            if os.path.isdir(tf):
+                shutil.rmtree(tf)
+            elif os.path.isfile(tf):
+                os.unlink(tf)
+            elif not os.path.exists(tf):
+                pass
+            else:
+                raise SystemError("unrecognized file: %s" % tf)
+        finally:
+            lockfile.LockFile = self.saved_class
+
+    def _test_acquire_helper(self, tbool):
+        # As simple as it gets.
+        lock = lockfile.LockFile(self._testfile(), threaded=tbool)
+        lock.acquire()
+        assert lock.i_am_locking()
+        lock.release()
+        assert not lock.is_locked()
+
+##    def test_acquire_basic_threaded(self):
+##        self._test_acquire_helper(True)
+
+    def test_acquire_basic_unthreaded(self):
+        self._test_acquire_helper(False)
+
+    def _test_acquire_no_timeout_helper(self, tbool):
+        # No timeout test
+        e1, e2 = threading.Event(), threading.Event()
+        t = _in_thread(self._lock_wait_unlock, e1, e2)
+        e1.wait()         # wait for thread t to acquire lock
+        lock2 = lockfile.LockFile(self._testfile(), threaded=tbool)
+        assert lock2.is_locked()
+        if tbool:
+            assert not lock2.i_am_locking()
+        else:
+            assert lock2.i_am_locking()
+
+        try:
+            lock2.acquire(timeout=-1)
+        except lockfile.AlreadyLocked:
+            pass
+        else:
+            lock2.release()
+            raise AssertionError("did not raise AlreadyLocked in"
+                                 " thread %s" %
+                                 threading.current_thread().get_name())
+
+        try:
+            lock2.acquire(timeout=0)
+        except lockfile.AlreadyLocked:
+            pass
+        else:
+            lock2.release()
+            raise AssertionError("did not raise AlreadyLocked in"
+                                 " thread %s" %
+                                 threading.current_thread().get_name())
+
+        e2.set()          # tell thread t to release lock
+        t.join()
+
+##    def test_acquire_no_timeout_threaded(self):
+##        self._test_acquire_no_timeout_helper(True)
+
+##    def test_acquire_no_timeout_unthreaded(self):
+##        self._test_acquire_no_timeout_helper(False)
+
+    def _test_acquire_timeout_helper(self, tbool):
+        # Timeout test
+        e1, e2 = threading.Event(), threading.Event()
+        t = _in_thread(self._lock_wait_unlock, e1, e2)
+        e1.wait()                # wait for thread t to acquire lock
+        lock2 = lockfile.LockFile(self._testfile(), threaded=tbool)
+        assert lock2.is_locked()
+        try:
+            lock2.acquire(timeout=0.1)
+        except lockfile.LockTimeout:
+            pass
+        else:
+            lock2.release()
+            raise AssertionError("did not raise LockTimeout in thread %s" %
+                                 threading.current_thread().get_name())
+
+        e2.set()
+        t.join()
+
+    def test_acquire_timeout_threaded(self):
+        self._test_acquire_timeout_helper(True)
+
+    def test_acquire_timeout_unthreaded(self):
+        self._test_acquire_timeout_helper(False)
+
+    def _test_context_timeout_helper(self, tbool):
+        # Timeout test
+        e1, e2 = threading.Event(), threading.Event()
+        t = _in_thread(self._lock_wait_unlock, e1, e2)
+        e1.wait()                # wait for thread t to acquire lock
+        lock2 = lockfile.LockFile(self._testfile(), threaded=tbool,
+                                  timeout=0.2)
+        assert lock2.is_locked()
+        try:
+            lock2.acquire()
+        except lockfile.LockTimeout:
+            pass
+        else:
+            lock2.release()
+            raise AssertionError("did not raise LockTimeout in thread %s" %
+                                 threading.current_thread().get_name())
+
+        e2.set()
+        t.join()
+
+    def test_context_timeout_unthreaded(self):
+        self._test_context_timeout_helper(False)
+
+    def _test_release_basic_helper(self, tbool):
+        lock = lockfile.LockFile(self._testfile(), threaded=tbool)
+        lock.acquire()
+        assert lock.is_locked()
+        lock.release()
+        assert not lock.is_locked()
+        assert not lock.i_am_locking()
+        try:
+            lock.release()
+        except lockfile.NotLocked:
+            pass
+        except lockfile.NotMyLock:
+            raise AssertionError('unexpected exception: %s' %
+                                 lockfile.NotMyLock)
+        else:
+            raise AssertionError('erroneously unlocked file')
+
+##    def test_release_basic_threaded(self):
+##        self._test_release_basic_helper(True)
+
+    def test_release_basic_unthreaded(self):
+        self._test_release_basic_helper(False)
+
+##    def test_release_from_thread(self):
+##        e1, e2 = threading.Event(), threading.Event()
+##        t = _in_thread(self._lock_wait_unlock, e1, e2)
+##        e1.wait()
+##        lock2 = lockfile.LockFile(self._testfile(), threaded=False)
+##        assert not lock2.i_am_locking()
+##        try:
+##            lock2.release()
+##        except lockfile.NotMyLock:
+##            pass
+##        else:
+##            raise AssertionError('erroneously unlocked a file locked'
+##                                 ' by another thread.')
+##        e2.set()
+##        t.join()
+
+    def _test_is_locked_helper(self, tbool):
+        lock = lockfile.LockFile(self._testfile(), threaded=tbool)
+        lock.acquire(timeout=2)
+        assert lock.is_locked()
+        lock.release()
+        assert not lock.is_locked(), "still locked after release!"
+
+##    def test_is_locked_threaded(self):
+##        self._test_is_locked_helper(True)
+
+    def test_is_locked_unthreaded(self):
+        self._test_is_locked_helper(False)
+
+##    def test_i_am_locking_threaded(self):
+##        self._test_i_am_locking_helper(True)
+
+    def test_i_am_locking_unthreaded(self):
+        self._test_i_am_locking_helper(False)
+
+    def _test_i_am_locking_helper(self, tbool):
+        lock1 = lockfile.LockFile(self._testfile(), threaded=tbool)
+        assert not lock1.is_locked()
+        lock1.acquire()
+        try:
+            assert lock1.i_am_locking()
+            lock2 = lockfile.LockFile(self._testfile(), threaded=tbool)
+            assert lock2.is_locked()
+            if tbool:
+                assert not lock2.i_am_locking()
+        finally:
+            lock1.release()
+
+    def _test_break_lock_helper(self, tbool):
+        lock = lockfile.LockFile(self._testfile(), threaded=tbool)
+        lock.acquire()
+        assert lock.is_locked()
+        lock2 = lockfile.LockFile(self._testfile(), threaded=tbool)
+        assert lock2.is_locked()
+        lock2.break_lock()
+        assert not lock2.is_locked()
+        try:
+            lock.release()
+        except lockfile.NotLocked:
+            pass
+        else:
+            raise AssertionError('break lock failed')
+
+##    def test_break_lock_threaded(self):
+##        self._test_break_lock_helper(True)
+
+    def test_break_lock_unthreaded(self):
+        self._test_break_lock_helper(False)
+
+    def _lock_wait_unlock(self, event1, event2):
+        """Lock from another thread.  Helper for tests."""
+        l = lockfile.LockFile(self._testfile())
+        l.acquire()
+        try:
+            event1.set()  # we're in,
+            event2.wait() # wait for boss's permission to leave
+        finally:
+            l.release()
+
+    def test_enter(self):
+        lock = lockfile.LockFile(self._testfile())
+        lock.acquire()
+        try:
+            assert lock.is_locked(), "Not locked after acquire!"
+        finally:
+            lock.release()
+        assert not lock.is_locked(), "still locked after release!"
+
+    def test_decorator(self):
+        @lockfile.locked(self._testfile())
+        def func(a, b):
+            return a + b
+        assert func(4, 3) == 7
+
+def _in_thread(func, *args, **kwargs):
+    """Execute func(*args, **kwargs) after dt seconds. Helper for tests."""
+    def _f():
+        func(*args, **kwargs)
+    t = threading.Thread(target=_f, name='/*/*')
+    t.setDaemon(True)
+    t.start()
+    return t
+