mit neuen venv und exe-Files

venv3_12/Lib/site-packages/gevent/testing/timing.py

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+# Copyright (c) 2018 gevent community
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import gevent
+from gevent._compat import perf_counter
+
+from . import sysinfo
+from . import leakcheck
+from .testcase import TestCase
+
+SMALLEST_RELIABLE_DELAY = 0.001 # 1ms, because of libuv
+
+SMALL_TICK = 0.01
+SMALL_TICK_MIN_ADJ = SMALLEST_RELIABLE_DELAY
+SMALL_TICK_MAX_ADJ = 0.11
+if sysinfo.RUNNING_ON_APPVEYOR:
+    # Timing resolution is extremely poor on Appveyor
+    # and subject to jitter.
+    SMALL_TICK_MAX_ADJ = 1.5
+
+
+LARGE_TICK = 0.2
+LARGE_TICK_MIN_ADJ = LARGE_TICK / 2.0
+LARGE_TICK_MAX_ADJ = SMALL_TICK_MAX_ADJ
+
+
+class _DelayWaitMixin(object):
+
+    _default_wait_timeout = SMALL_TICK
+    _default_delay_min_adj = SMALL_TICK_MIN_ADJ
+    _default_delay_max_adj = SMALL_TICK_MAX_ADJ
+
+    def wait(self, timeout):
+        raise NotImplementedError('override me in subclass')
+
+    def _check_delay_bounds(self, timeout, delay,
+                            delay_min_adj=None,
+                            delay_max_adj=None):
+        delay_min_adj = self._default_delay_min_adj if not delay_min_adj else delay_min_adj
+        delay_max_adj = self._default_delay_max_adj if not delay_max_adj else delay_max_adj
+        self.assertTimeWithinRange(delay,
+                                   timeout - delay_min_adj,
+                                   timeout + delay_max_adj)
+
+    def _wait_and_check(self, timeout=None):
+        if timeout is None:
+            timeout = self._default_wait_timeout
+
+        # gevent.timer instances have a 'seconds' attribute,
+        # otherwise it's the raw number
+        seconds = getattr(timeout, 'seconds', timeout)
+
+        gevent.get_hub().loop.update_now()
+        start = perf_counter()
+        try:
+            result = self.wait(timeout)
+        finally:
+            self._check_delay_bounds(seconds, perf_counter() - start,
+                                     self._default_delay_min_adj,
+                                     self._default_delay_max_adj)
+        return result
+
+    def test_outer_timeout_is_not_lost(self):
+        timeout = gevent.Timeout.start_new(SMALLEST_RELIABLE_DELAY, ref=False)
+        try:
+            with self.assertRaises(gevent.Timeout) as exc:
+                self.wait(timeout=1)
+            self.assertIs(exc.exception, timeout)
+        finally:
+            timeout.close()
+
+
+class AbstractGenericWaitTestCase(_DelayWaitMixin, TestCase):
+    # pylint:disable=abstract-method
+
+    _default_wait_timeout = LARGE_TICK
+    _default_delay_min_adj = LARGE_TICK_MIN_ADJ
+    _default_delay_max_adj = LARGE_TICK_MAX_ADJ
+
+    @leakcheck.ignores_leakcheck # waiting checks can be very sensitive to timing
+    def test_returns_none_after_timeout(self):
+        result = self._wait_and_check()
+        # join and wait simply return after timeout expires
+        self.assertIsNone(result)
+
+
+class AbstractGenericGetTestCase(_DelayWaitMixin, TestCase):
+    # pylint:disable=abstract-method
+
+    Timeout = gevent.Timeout
+
+    def cleanup(self):
+        pass
+
+    def test_raises_timeout_number(self):
+        with self.assertRaises(self.Timeout):
+            self._wait_and_check(timeout=SMALL_TICK)
+        # get raises Timeout after timeout expired
+        self.cleanup()
+
+    def test_raises_timeout_Timeout(self):
+        timeout = gevent.Timeout(self._default_wait_timeout)
+        try:
+            self._wait_and_check(timeout=timeout)
+        except gevent.Timeout as ex:
+            self.assertIs(ex, timeout)
+        finally:
+            timeout.close()
+        self.cleanup()
+
+    def test_raises_timeout_Timeout_exc_customized(self):
+        error = RuntimeError('expected error')
+        timeout = gevent.Timeout(self._default_wait_timeout, exception=error)
+        try:
+            with self.assertRaises(RuntimeError) as exc:
+                self._wait_and_check(timeout=timeout)
+
+                self.assertIs(exc.exception, error)
+                self.cleanup()
+        finally:
+            timeout.close()