--- /dev/null
+*** Settings ***
+Documentation Cluster Singleton testing: Common Keywords
+...
+... Copyright (c) 2017 Cisco Systems, Inc. and others. All rights reserved.
+...
+... This program and the accompanying materials are made available under the
+... terms of the Eclipse Public License v1.0 which accompanies this distribution,
+... and is available at http://www.eclipse.org/legal/epl-v10.html
+...
+... Cluster Singleton service is designed to ensure that only one instance of an
+... application is registered globally in the cluster.
+...
+... Creates and uses the following suite variables:
+... Created by Cluster_Singleton_Init:
+... ${all_indices}
+... ${exp_candidates}
+... Created by Get_And_Save_Present_CsOwner_And_CsCandidates:
+... ${cs_owner}
+... ${cs_candidates}
+... Created by Isolate_Owner_And_Verify_Isolated
+... ${cs_isolated_index}
+Library Collections
+Resource ${CURDIR}/../ClusterManagement.robot
+Resource ${CURDIR}/../MdsalLowlevel.robot
+Resource ${CURDIR}/../WaitForFailure.robot
+
+*** Variables ***
+${CS_DEVICE_NAME} get-singleton-constant-service']
+${CS_DEVICE_TYPE} org.opendaylight.mdsal.ServiceEntityType
+${CS_CONSTANT_PREFIX} constant-
+@{CS_STATUS_ISOLATED} ${501}
+
+*** Keywords ***
+Cluster_Singleton_Init
+ [Documentation] Resouce initial keyword. Creates {exp_candidates} and {all_indices} suite variables which are
+ ... used in other keywords.
+ ${exp_candidates} = BuiltIn.Create_List
+ BuiltIn.Set_Suite_Variable ${exp_candidates}
+ ${all_indices} = ClusterManagement.List_All_Indices
+ BuiltIn.Set_Suite_Variable ${all_indices}
+
+Register_Singleton_And_Update_Expected_Candidates
+ [Arguments] ${member_index} ${constant}
+ [Documentation] Register the singleton candidate and add it to the list of ${exp_candidates}.
+ MdsalLowlevel.Register_Singleton_Constant ${member_index} ${constant}
+ Collections.Append_To_List ${exp_candidates} ${member_index}
+ Collections.Sort_List ${exp_candidates}
+
+Unregister_Singleton_And_Update_Expected_Candidates
+ [Arguments] ${member_index}
+ [Documentation] Unregister the singleton candidate. Also remove it from the list of ${exp_candidates}.
+ MdsalLowlevel.Unregister_Singleton_Constant ${member_index}
+ Collections.Remove_Values_From_List ${exp_candidates} ${member_index}
+
+Verify_Owner_And_Candidates_Stable
+ [Arguments] ${owner_index}
+ [Documentation] Fail if the actual owner is different from ${owner_index} or if the actual candidate list is different from ${exp_candidates}.
+ ${actual_owner} ${actual_candidates} ClusterManagement.Check_Old_Owner_Stays_Elected_For_Device ${CS_DEVICE_NAME} ${CS_DEVICE_TYPE} ${owner_index} ${owner_index}
+ Collections.Lists_Should_Be_Equal ${exp_candidates} ${actual_candidates}
+
+Monitor_Owner_And_Candidates_Stability
+ [Arguments] ${monitoring_duration} ${owner_index}
+ [Documentation] Verify that the owner remains on the same node after non-owner candidate is unregistered.
+ WaitForFailure.Verify_Keyword_Does_Not_Fail_Within_Timeout ${monitoring_duration} 3s Verify_Owner_And_Candidates_Stable ${owner_index}
+
+Register_Singleton_Constant_On_Nodes
+ [Arguments] ${index_list}
+ [Documentation] Register a candidate application on given nodes.
+ : FOR ${index} IN @{index_list}
+ \ Register_Singleton_And_Update_Expected_Candidates ${index} ${CS_CONSTANT_PREFIX}${index}
+
+Unregister_Singleton_Constant_On_Nodes
+ [Arguments] ${index_list}
+ [Documentation] Unregister the application from given nodes.
+ : FOR ${index} IN @{index_list}
+ \ Unregister_Singleton_And_Update_Expected_Candidates ${index}
+
+Get_And_Save_Present_CsOwner_And_CsCandidates
+ [Arguments] ${node_to_ask}
+ [Documentation] Store owner index into suite variables.
+ ${cs_owner} ${cs_candidates} ClusterManagement.Get_Owner_And_Candidates_For_Device ${CS_DEVICE_NAME} ${CS_DEVICE_TYPE} ${node_to_ask}
+ BuiltIn.Set_Suite_Variable ${cs_owner}
+ BuiltIn.Set_Suite_Variable ${cs_candidates}
+ BuiltIn.Return_From_Keyword ${cs_owner} ${cs_candidates}
+
+Verify_Singleton_Constant_On_Node
+ [Arguments] ${node_to_ask} ${exp_constant}
+ [Documentation] Verify that the expected constant is return from the given node.
+ ${constant} = MdsalLowlevel.Get_Singleton_Constant ${node_to_ask}
+ BuiltIn.Should_Be_Equal ${exp_constant} ${constant}
+
+Verify_Singleton_Constant_On_Nodes
+ [Arguments] ${index_list} ${exp_constant}
+ [Documentation] Iterate over all cluster nodes and all should return expected constant.
+ : FOR ${index} IN @{index_list}
+ \ Verify_Singleton_Constant_On_Node ${index} ${exp_constant}
+
+Verify_Singleton_Constant_During_Isolation
+ [Documentation] Iterate over all cluster nodes. Isolated node should return http status code ${CS_STATUS_ISOLATED}. All non-isolated nodes should
+ ... return correct constant.
+ : FOR ${index} IN @{all_indices}
+ \ BuiltIn.Run_Keyword_If "${index}" == "${cs_isolated_index}" MdsalLowlevel.Get_Singleton_Constant ${index} explicit_status_codes=${CS_STATUS_ISOLATED}
+ \ BuiltIn.Run_Keyword_Unless "${index}" == "${cs_isolated_index}" Verify_Singleton_Constant_On_Node ${index} ${CS_CONSTANT_PREFIX}${cs_owner}
+
+Isolate_Owner_And_Verify_Isolated
+ [Documentation] Isolate the owner cluster node. Wait until the new owner is elected and store new values of owner and candidates. Then wait
+ ... for isolated node to respond correctly when isolated.
+ ClusterManagement.Isolate_Member_From_List_Or_All ${cs_owner}
+ BuiltIn.Set_Suite_Variable ${cs_isolated_index} ${cs_owner}
+ ${non_isolated_list} = ClusterManagement.List_Indices_Minus_Member ${cs_isolated_index} member_index_list=${all_indices}
+ ${node_to_ask} = Collections.Get_From_list ${non_isolated_list} 0
+ BuiltIn.Wait_Until_Keyword_Succeeds 5x 2s ClusterManagement.Check_New_Owner_Got_Elected_For_Device ${CS_DEVICE_NAME} ${CS_DEVICE_TYPE} ${cs_isolated_index}
+ ... ${node_to_ask}
+ Get_And_Save_Present_CsOwner_And_CsCandidates ${node_to_ask}
+ BuiltIn.Wait_Until_Keyword_Succeeds 5x 2s MdsalLowlevel.Get_Singleton_Constant ${cs_isolated_index} explicit_status_codes=${CS_STATUS_ISOLATED}
+
+Rejoin_Node_And_Verify_Rejoined
+ [Documentation] Rejoin isolated node.
+ ClusterManagement.Rejoin_Member_From_List_Or_All ${cs_isolated_index}
+ BuiltIn.Wait_Until_Keyword_Succeeds 5x 2s Verify_Singleton_Constant_On_Node ${cs_isolated_index} ${CS_CONSTANT_PREFIX}${cs_owner}
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