Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/twisted/logger/test/test_util.py

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+# Copyright (c) Twisted Matrix Laboratories.
+# See LICENSE for details.
+
+"""
+Test cases for L{twisted.logger._util}.
+"""
+
+from twisted.trial import unittest
+
+from .._observer import LogPublisher
+from .._util import formatTrace
+
+
+
+class UtilTests(unittest.TestCase):
+    """
+    Utility tests.
+    """
+
+    def test_trace(self):
+        """
+        Tracing keeps track of forwarding done by the publisher.
+        """
+        publisher = LogPublisher()
+
+        event = dict(log_trace=[])
+
+        o1 = lambda e: None
+
+        def o2(e):
+            self.assertIs(e, event)
+            self.assertEqual(
+                e["log_trace"],
+                [
+                    (publisher, o1),
+                    (publisher, o2),
+                    # Event hasn't been sent to o3 yet
+                ]
+            )
+
+        def o3(e):
+            self.assertIs(e, event)
+            self.assertEqual(
+                e["log_trace"],
+                [
+                    (publisher, o1),
+                    (publisher, o2),
+                    (publisher, o3),
+                ]
+            )
+
+        publisher.addObserver(o1)
+        publisher.addObserver(o2)
+        publisher.addObserver(o3)
+        publisher(event)
+
+
+    def test_formatTrace(self):
+        """
+        Format trace as string.
+        """
+        event = dict(log_trace=[])
+
+        def noOp(e):
+            pass
+
+        o1, o2, o3, o4, o5 = noOp, noOp, noOp, noOp, noOp
+
+        o1.name = "root/o1"
+        o2.name = "root/p1/o2"
+        o3.name = "root/p1/o3"
+        o4.name = "root/p1/p2/o4"
+        o5.name = "root/o5"
+
+        def testObserver(e):
+            self.assertIs(e, event)
+            trace = formatTrace(e["log_trace"])
+            self.assertEqual(
+                trace,
+                (
+                    u"{root} ({root.name})\n"
+                    u"  -> {o1} ({o1.name})\n"
+                    u"  -> {p1} ({p1.name})\n"
+                    u"    -> {o2} ({o2.name})\n"
+                    u"    -> {o3} ({o3.name})\n"
+                    u"    -> {p2} ({p2.name})\n"
+                    u"      -> {o4} ({o4.name})\n"
+                    u"  -> {o5} ({o5.name})\n"
+                    u"  -> {oTest}\n"
+                ).format(
+                    root=root,
+                    o1=o1, o2=o2, o3=o3, o4=o4, o5=o5,
+                    p1=p1, p2=p2,
+                    oTest=oTest
+                )
+            )
+        oTest = testObserver
+
+        p2 = LogPublisher(o4)
+        p1 = LogPublisher(o2, o3, p2)
+
+        p2.name = "root/p1/p2/"
+        p1.name = "root/p1/"
+
+        root = LogPublisher(o1, p1, o5, oTest)
+        root.name = "root/"
+        root(event)