added failing test refs #14332, #21

tests/sumo/rail/routing/reversal_possible_slack/errors.sumo

@@ -0,0 +1,3 @@
+Warning: Network contains internal links which are ignored. Vehicles will 'jump' across junctions and thus underestimate route lengths and travel times.
+Warning: Teleporting vehicle 't0'; waited too long (jam), lane='e_0', time=352.00.
+Warning: Vehicle 't0' ends teleporting on edge '-e', time=352.00.

tests/sumo/rail/routing/reversal_possible_slack/input_routes.rou.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<routes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/routes_file.xsd">
+    <vType id="train" vClass="rail" length="48.03"/>
+    <trip id="t0" type="train" depart="0.00" from="a" to="-a3"/>
+</routes>

tests/sumo/rail/routing/reversal_possible_slack/options.sumo

@@ -0,0 +1,3 @@
+--no-step-log --no-duration-log --net-file=net.net.xml --vehroute-output
+vehroutes.xml --routes=input_routes.rou.xml
+--no-internal-links

tests/sumo/rail/routing/reversal_possible_slack/railsignalblocks.sumo

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- generated on Tue Feb 25 13:52:43 2020 by Eclipse SUMO Version v1_5_0+0242-ce7b74c
+This data file and the accompanying materials
+are made available under the terms of the Eclipse Public License v2.0
+which accompanies this distribution, and is available at
+http://www.eclipse.org/legal/epl-v20.html
+SPDX-License-Identifier: EPL-2.0
+<configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/sumoConfiguration.xsd">
+
+    <input>
+        <net-file value="net.net.xml"/>
+        <route-files value="input_routes.rou.xml"/>
+    </input>
+
+    <output>
+        <write-license value="true"/>
+        <vehroute-output value="vehroutes.xml"/>
+        <railsignal-block-output value="railsignal_blocks.xml"/>
+    </output>
+
+    <processing>
+        <default.speeddev value="0"/>
+    </processing>
+
+    <report>
+        <xml-validation value="never"/>
+        <duration-log.disable value="true"/>
+        <no-step-log value="true"/>
+    </report>
+
+</configuration>
+-->
+
+<railsignal-block-output>
+</railsignal-block-output>

tests/sumo/rail/routing/reversal_possible_slack/vehroutes.sumo

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- generated on 2024-02-15 11:08:11 by Eclipse SUMO sumo Version v1_19_0+0821-7ff161c
+This data file and the accompanying materials
+are made available under the terms of the Eclipse Public License v2.0
+which accompanies this distribution, and is available at
+http://www.eclipse.org/legal/epl-v20.html
+This file may also be made available under the following Secondary
+Licenses when the conditions for such availability set forth in the Eclipse
+Public License 2.0 are satisfied: GNU General Public License, version 2
+or later which is available at
+https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
+SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
+<configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/sumoConfiguration.xsd">
+
+    <input>
+        <net-file value="net.net.xml"/>
+        <route-files value="input_routes.rou.xml"/>
+    </input>
+
+    <output>
+        <write-license value="true"/>
+        <vehroute-output value="vehroutes.xml"/>
+        <railsignal-block-output value="railsignal_blocks.xml"/>
+    </output>
+
+    <processing>
+        <no-internal-links value="true"/>
+        <default.speeddev value="0"/>
+    </processing>
+
+    <report>
+        <xml-validation value="never"/>
+        <duration-log.disable value="true"/>
+        <no-step-log value="true"/>
+    </report>
+
+</configuration>
+-->
+
+<routes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/routes_file.xsd">
+    <vehicle id="t0" type="train" depart="0.00" arrival="364.00">
+        <route edges="a b c d e -e -b3 -a3"/>
+    </vehicle>
+
+</routes>

tests/sumo/rail/routing/testsuite.sumo

@@ -10,6 +10,9 @@ reversal_impossible
 # the train is just as long as the available reversal section. This would make it get stuck in the simulation so routing should fail
 reversal_impossible_slack
 
+# the train is just as long as the first edge of the available reversal section. This should prolong the route to another section to prevent it from getting stuck.
+reversal_possible_slack
+
 # vehicle has sufficient space after the switch but no turn-around connection is defined
 missing_turnaround