Fix Absolute Path to list with Integer/String key

 - Introduced normalizedXpath to normalize the xpath and cpspath
 - Introduced normalizedAncestorpath to normalize the ancestor path in xpath and cpspath
 - Added new condition in the ANTLR Grammar to capture the invalid path in the xpath
 - Introduced PathParsingException to replace the IllegalStateException

Issue-ID: CPS-961
Change-Id: Ie10f5c6cfc466387e79eec184b933297d1d79587
Signed-off-by: Lathish <lathishbabu.ganesan@est.tech>

3 files changed, 61 insertions, 49 deletions

diff --git a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceQueryDataNodeSpec.groovy b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceQueryDataNodeSpec.groovy
index ae88d302bb..36b378a775 100644
--- a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceQueryDataNodeSpec.groovy
+++ b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceQueryDataNodeSpec.groovy
@@ -1,6 +1,6 @@
 /*
  *  ============LICENSE_START=======================================================
- *  Copyright (C) 2021 Nordix Foundation
+ *  Copyright (C) 2021-2022 Nordix Foundation
  *  Modifications Copyright (C) 2021 Pantheon.tech
  *  Modifications Copyright (C) 2021 Bell Canada.
  *  ================================================================================
@@ -92,15 +92,15 @@ class CpsDataPersistenceQueryDataNodeSpec extends CpsPersistenceSpecBase {
             }
         where: 'the following data is used'
             scenario                                                 | cpsPath                                 || expectedXPaths
-            'fully unique descendant name'                           | '//categories[@code=2]'                 || ['/shops/shop[@id=1]/categories[@code=2]', '/shops/shop[@id=2]/categories[@code=1]', '/shops/shop[@id=2]/categories[@code=2]']
-            'descendant name match end of other node'                | '//book'                                || ['/shops/shop[@id=1]/categories[@code=1]/book', '/shops/shop[@id=1]/categories[@code=2]/book']
-            'descendant with text condition on leaf'                 | '//book/title[text()="Chapters"]'       || ['/shops/shop[@id=1]/categories[@code=2]/book']
+            'fully unique descendant name'                           | '//categories[@code=2]'                 || ["/shops/shop[@id='1']/categories[@code='2']", "/shops/shop[@id='2']/categories[@code='1']", "/shops/shop[@id='2']/categories[@code='2']"]
+            'descendant name match end of other node'                | '//book'                                || ["/shops/shop[@id='1']/categories[@code='1']/book", "/shops/shop[@id='1']/categories[@code='2']/book"]
+            'descendant with text condition on leaf'                 | '//book/title[text()="Chapters"]'       || ["/shops/shop[@id='1']/categories[@code='2']/book"]
             'descendant with text condition case mismatch'           | '//book/title[text()="chapters"]'       || []
-            'descendant with text condition on int leaf'             | '//book/price[text()="5"]'              || ['/shops/shop[@id=1]/categories[@code=1]/book']
-            'descendant with text condition on leaf-list'            | '//book/labels[text()="special offer"]' || ['/shops/shop[@id=1]/categories[@code=1]/book']
+            'descendant with text condition on int leaf'             | '//book/price[text()="5"]'              || ["/shops/shop[@id='1']/categories[@code='1']/book"]
+            'descendant with text condition on leaf-list'            | '//book/labels[text()="special offer"]' || ["/shops/shop[@id='1']/categories[@code='1']/book"]
             'descendant with text condition partial match'           | '//book/labels[text()="special"]'       || []
-            'descendant with text condition (existing) empty string' | '//book/labels[text()=""]'              || ['/shops/shop[@id=1]/categories[@code=1]/book']
-            'descendant with text condition on int leaf-list'        | '//book/editions[text()="2000"]'        || ['/shops/shop[@id=1]/categories[@code=2]/book']
+            'descendant with text condition (existing) empty string' | '//book/labels[text()=""]'              || ["/shops/shop[@id='1']/categories[@code='1']/book"]
+            'descendant with text condition on int leaf-list'        | '//book/editions[text()="2000"]'        || ["/shops/shop[@id='1']/categories[@code='2']/book"]
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
@@ -115,10 +115,10 @@ class CpsDataPersistenceQueryDataNodeSpec extends CpsPersistenceSpecBase {
             }
         where: 'the following data is used'
             scenario                   | cpsPath                                               || expectedXPaths
-            'one leaf'                 | '//author[@FirstName="Joe"]'                          || ['/shops/shop[@id=1]/categories[@code=1]/book/author[@FirstName="Joe" and @Surname="Bloggs"]', '/shops/shop[@id=1]/categories[@code=2]/book/author[@FirstName="Joe" and @Surname="Smith"]']
-            'more than one leaf'       | '//author[@FirstName="Joe" and @Surname="Bloggs"]'    || ['/shops/shop[@id=1]/categories[@code=1]/book/author[@FirstName="Joe" and @Surname="Bloggs"]']
-            'leaves reversed in order' | '//author[@Surname="Bloggs" and @FirstName="Joe"]'    || ['/shops/shop[@id=1]/categories[@code=1]/book/author[@FirstName="Joe" and @Surname="Bloggs"]']
-            'leaf and text condition'  | '//author[@FirstName="Joe"]/Surname[text()="Bloggs"]' || ['/shops/shop[@id=1]/categories[@code=1]/book/author[@FirstName="Joe" and @Surname="Bloggs"]']
+            'one leaf'                 | '//author[@FirstName="Joe"]'                          || ["/shops/shop[@id='1']/categories[@code='1']/book/author[@FirstName='Joe' and @Surname='Bloggs']", "/shops/shop[@id='1']/categories[@code='2']/book/author[@FirstName='Joe' and @Surname='Smith']"]
+            'more than one leaf'       | '//author[@FirstName="Joe" and @Surname="Bloggs"]'    || ["/shops/shop[@id='1']/categories[@code='1']/book/author[@FirstName='Joe' and @Surname='Bloggs']"]
+            'leaves reversed in order' | '//author[@Surname="Bloggs" and @FirstName="Joe"]'    || ["/shops/shop[@id='1']/categories[@code='1']/book/author[@FirstName='Joe' and @Surname='Bloggs']"]
+            'leaf and text condition'  | '//author[@FirstName="Joe"]/Surname[text()="Bloggs"]' || ["/shops/shop[@id='1']/categories[@code='1']/book/author[@FirstName='Joe' and @Surname='Bloggs']"]
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
@@ -133,9 +133,9 @@ class CpsDataPersistenceQueryDataNodeSpec extends CpsPersistenceSpecBase {
             }
         where: 'the following data is used'
             scenario                              | cpsPath                                        || expectedXPaths
-            'one partial key leaf'                | '//author[@FirstName="Joe"]'                   || ['/shops/shop[@id=1]/categories[@code=1]/book/author[@FirstName="Joe" and @Surname="Bloggs"]', '/shops/shop[@id=1]/categories[@code=2]/book/author[@FirstName="Joe" and @Surname="Smith"]']
-            'one non key leaf'                    | '//author[@title="Dune"]'                      || ['/shops/shop[@id=1]/categories[@code=1]/book/author[@FirstName="Joe" and @Surname="Bloggs"]']
-            'mix of partial key and non key leaf' | '//author[@FirstName="Joe" and @title="Dune"]' || ['/shops/shop[@id=1]/categories[@code=1]/book/author[@FirstName="Joe" and @Surname="Bloggs"]']
+            'one partial key leaf'                | '//author[@FirstName="Joe"]'                   || ["/shops/shop[@id='1']/categories[@code='1']/book/author[@FirstName='Joe' and @Surname='Bloggs']", "/shops/shop[@id='1']/categories[@code='2']/book/author[@FirstName='Joe' and @Surname='Smith']"]
+            'one non key leaf'                    | '//author[@title="Dune"]'                      || ["/shops/shop[@id='1']/categories[@code='1']/book/author[@FirstName='Joe' and @Surname='Bloggs']"]
+            'mix of partial key and non key leaf' | '//author[@FirstName="Joe" and @title="Dune"]' || ["/shops/shop[@id='1']/categories[@code='1']/book/author[@FirstName='Joe' and @Surname='Bloggs']"]
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
@@ -149,13 +149,13 @@ class CpsDataPersistenceQueryDataNodeSpec extends CpsPersistenceSpecBase {
             }
         where: 'the following data is used'
             scenario                                    | cpsPath                                              || expectedXPaths
-            'multiple list-ancestors'                   | '//book/ancestor::categories'                        || ['/shops/shop[@id=1]/categories[@code=1]', '/shops/shop[@id=1]/categories[@code=2]']
-            'one ancestor with list value'              | '//book/ancestor::categories[@code=1]'               || ['/shops/shop[@id=1]/categories[@code=1]']
+            'multiple list-ancestors'                   | '//book/ancestor::categories'                        || ["/shops/shop[@id='1']/categories[@code='1']", "/shops/shop[@id='1']/categories[@code='2']"]
+            'one ancestor with list value'              | '//book/ancestor::categories[@code=1]'               || ["/shops/shop[@id='1']/categories[@code='1']"]
             'top ancestor'                              | '//shop[@id=1]/ancestor::shops'                      || ['/shops']
-            'list with index value in the xpath prefix' | '//categories[@code=1]/book/ancestor::shop[@id=1]'   || ['/shops/shop[@id=1]']
-            'ancestor with parent list'                 | '//book/ancestor::shop[@id=1]/categories[@code=2]'   || ['/shops/shop[@id=1]/categories[@code=2]']
-            'ancestor with parent'                      | '//phonenumbers[@type="mob"]/ancestor::info/contact' || ['/shops/shop[@id=3]/info/contact']
-            'ancestor combined with text condition'     | '//book/title[text()="Dune"]/ancestor::shop'         || ['/shops/shop[@id=1]']
+            'list with index value in the xpath prefix' | '//categories[@code=1]/book/ancestor::shop[@id=1]'   || ["/shops/shop[@id='1']"]
+            'ancestor with parent list'                 | '//book/ancestor::shop[@id=1]/categories[@code=2]'   || ["/shops/shop[@id='1']/categories[@code='2']"]
+            'ancestor with parent'                      | '//phonenumbers[@type="mob"]/ancestor::info/contact' || ["/shops/shop[@id='3']/info/contact"]
+            'ancestor combined with text condition'     | '//book/title[text()="Dune"]/ancestor::shop'         || ["/shops/shop[@id='1']"]
             'ancestor with parent that does not exist'  | '//book/ancestor::parentDoesNoExist/categories'      || []
             'ancestor does not exist'                   | '//book/ancestor::ancestorDoesNotExist'              || []
     }
diff --git a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceIntegrationSpec.groovy b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceIntegrationSpec.groovy
index ab290051a2..6f780fc508 100755
--- a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceIntegrationSpec.groovy
+++ b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceIntegrationSpec.groovy
@@ -23,11 +23,13 @@ package org.onap.cps.spi.impl
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.google.common.collect.ImmutableSet
+import org.onap.cps.cpspath.parser.PathParsingException
 import org.onap.cps.spi.CpsDataPersistenceService
 import org.onap.cps.spi.entities.FragmentEntity
 import org.onap.cps.spi.exceptions.AlreadyDefinedException
 import org.onap.cps.spi.exceptions.AnchorNotFoundException
 import org.onap.cps.spi.exceptions.CpsAdminException
+import org.onap.cps.spi.exceptions.CpsPathException
 import org.onap.cps.spi.exceptions.DataNodeNotFoundException
 import org.onap.cps.spi.exceptions.DataspaceNotFoundException
 import org.onap.cps.spi.model.DataNode
@@ -150,7 +152,7 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
             thrown(expectedException)
         where: 'the following data is used'
             scenario                 | parentXpath                      | dataNode              || expectedException
-            'parent does not exist'  | 'unknown'                        | newDataNode           || DataNodeNotFoundException
+            'parent does not exist'  | '/unknown'                       | newDataNode           || DataNodeNotFoundException
             'already existing child' | XPATH_DATA_NODE_WITH_DESCENDANTS | existingChildDataNode || AlreadyDefinedException
     }
 
@@ -185,9 +187,9 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
         then: 'a #expectedException is thrown'
             thrown(expectedException)
         where: 'following parameters were used'
-            scenario                     | parentNodeXpath | listElementXpaths                   || expectedException
-            'parent node does not exist' | '/unknown'      | ['irrelevant']                      || DataNodeNotFoundException
-            'already existing fragment'  | '/parent-201'   | ['/parent-201/child-204[@key="A"]'] || AlreadyDefinedException
+            scenario                        | parentNodeXpath | listElementXpaths                   || expectedException
+            'parent node does not exist'    | '/unknown'      | ['irrelevant']                      || DataNodeNotFoundException
+            'data fragment already exists'  | '/parent-201'   | ["/parent-201/child-204[@key='A']"] || AlreadyDefinedException
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
@@ -208,6 +210,15 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
+    def 'Cps Path query with syntax error throws a CPS Path Exception.'() {
+        when: 'trying to execute a query with a syntax (parsing) error'
+            objectUnderTest.getDataNode(DATASPACE_NAME, ANCHOR_FOR_DATA_NODES_WITH_LEAVES, 'invalid-cps-path/child' , OMIT_DESCENDANTS)
+        then: 'exception is thrown'
+            def exceptionThrown = thrown(CpsPathException)
+            assert exceptionThrown.getDetails().contains('failed to parse at line 1 due to extraneous input \'invalid-cps-path\' expecting \'/\'')
+    }
+
+    @Sql([CLEAR_DATA, SET_DATA])
     def 'Get data node by xpath with all descendants.'() {
         when: 'data node is requested with all descendants'
             def result = objectUnderTest.getDataNode(DATASPACE_NAME, ANCHOR_FOR_DATA_NODES_WITH_LEAVES,
@@ -235,10 +246,10 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
         then: 'a #expectedException is thrown'
             thrown(expectedException)
         where: 'the following data is used'
-            scenario                 | dataspaceName  | anchorName                        | xpath          || expectedException
-            'non-existing dataspace' | 'NO DATASPACE' | 'not relevant'                    | 'not relevant' || DataspaceNotFoundException
-            'non-existing anchor'    | DATASPACE_NAME | 'NO ANCHOR'                       | 'not relevant' || AnchorNotFoundException
-            'non-existing xpath'     | DATASPACE_NAME | ANCHOR_FOR_DATA_NODES_WITH_LEAVES | 'NO XPATH'     || DataNodeNotFoundException
+            scenario                 | dataspaceName  | anchorName                        | xpath           || expectedException
+            'non-existing dataspace' | 'NO DATASPACE' | 'not relevant'                    | '/not relevant' || DataspaceNotFoundException
+            'non-existing anchor'    | DATASPACE_NAME | 'NO ANCHOR'                       | '/not relevant' || AnchorNotFoundException
+            'non-existing xpath'     | DATASPACE_NAME | ANCHOR_FOR_DATA_NODES_WITH_LEAVES | '/NO XPATH'     || DataNodeNotFoundException
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
@@ -265,10 +276,10 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
         then: 'a #expectedException is thrown'
             thrown(expectedException)
         where: 'the following data is used'
-            scenario                 | dataspaceName  | anchorName                        | xpath                || expectedException
-            'non-existing dataspace' | 'NO DATASPACE' | 'not relevant'                    | 'not relevant'       || DataspaceNotFoundException
-            'non-existing anchor'    | DATASPACE_NAME | 'NO ANCHOR'                       | 'not relevant'       || AnchorNotFoundException
-            'non-existing xpath'     | DATASPACE_NAME | ANCHOR_FOR_DATA_NODES_WITH_LEAVES | 'NON-EXISTING XPATH' || DataNodeNotFoundException
+            scenario                 | dataspaceName  | anchorName                        | xpath                 || expectedException
+            'non-existing dataspace' | 'NO DATASPACE' | 'not relevant'                    | '/not relevant'       || DataspaceNotFoundException
+            'non-existing anchor'    | DATASPACE_NAME | 'NO ANCHOR'                       | '/not relevant'       || AnchorNotFoundException
+            'non-existing xpath'     | DATASPACE_NAME | ANCHOR_FOR_DATA_NODES_WITH_LEAVES | '/NON-EXISTING XPATH' || DataNodeNotFoundException
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
@@ -359,10 +370,10 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
         then: 'a #expectedException is thrown'
             thrown(expectedException)
         where: 'the following data is used'
-            scenario                 | dataspaceName  | anchorName                        | xpath                || expectedException
-            'non-existing dataspace' | 'NO DATASPACE' | 'not relevant'                    | 'not relevant'       || DataspaceNotFoundException
-            'non-existing anchor'    | DATASPACE_NAME | 'NO ANCHOR'                       | 'not relevant'       || AnchorNotFoundException
-            'non-existing xpath'     | DATASPACE_NAME | ANCHOR_FOR_DATA_NODES_WITH_LEAVES | 'NON-EXISTING XPATH' || DataNodeNotFoundException
+            scenario                 | dataspaceName  | anchorName                        | xpath                 || expectedException
+            'non-existing dataspace' | 'NO DATASPACE' | 'not relevant'                    | '/not relevant'       || DataspaceNotFoundException
+            'non-existing anchor'    | DATASPACE_NAME | 'NO ANCHOR'                       | '/not relevant'       || AnchorNotFoundException
+            'non-existing xpath'     | DATASPACE_NAME | ANCHOR_FOR_DATA_NODES_WITH_LEAVES | '/NON-EXISTING XPATH' || DataNodeNotFoundException
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
@@ -468,10 +479,10 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
             assert remainingChildXpaths.containsAll(expectedRemainingChildXpaths)
         where: 'following parameters were used'
             scenario                          | targetXpaths                                                 | parentFragmentId                     || expectedRemainingChildXpaths
-            'list element with key'           | '/parent-203/child-204[@key="A"]'                            | LIST_DATA_NODE_PARENT203_FRAGMENT_ID || ['/parent-203/child-203', '/parent-203/child-204[@key="B"]']
-            'list element with combined keys' | '/parent-202/child-205[@key="A" and @key2="B"]'              | LIST_DATA_NODE_PARENT202_FRAGMENT_ID || ['/parent-202/child-206[@key="A"]']
+            'list element with key'           | '/parent-203/child-204[@key="A"]'                            | LIST_DATA_NODE_PARENT203_FRAGMENT_ID || ["/parent-203/child-203", "/parent-203/child-204[@key='B']"]
+            'list element with combined keys' | '/parent-202/child-205[@key="A" and @key2="B"]'              | LIST_DATA_NODE_PARENT202_FRAGMENT_ID || ["/parent-202/child-206[@key='A']"]
             'whole list'                      | '/parent-203/child-204'                                      | LIST_DATA_NODE_PARENT203_FRAGMENT_ID || ['/parent-203/child-203']
-            'list element under list element' | '/parent-203/child-204[@key="B"]/grand-child-204[@key2="Y"]' | LIST_DATA_NODE_PARENT203_FRAGMENT_ID || ['/parent-203/child-203', '/parent-203/child-204[@key="A"]', '/parent-203/child-204[@key="B"]']
+            'list element under list element' | '/parent-203/child-204[@key="B"]/grand-child-204[@key2="Y"]' | LIST_DATA_NODE_PARENT203_FRAGMENT_ID || ["/parent-203/child-203", "/parent-203/child-204[@key='A']", "/parent-203/child-204[@key='B']"]
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
@@ -510,9 +521,9 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
             'child of target'                       | '/parent-206/child-206'                            | '/parent-206/child-206'                           || null
             'child data node, parent still exists'  | '/parent-206/child-206'                            | '/parent-206'                                     || '/parent-206'
             'list element'                          | '/parent-206/child-206/grand-child-206[@key="A"]'  | '/parent-206/child-206/grand-child-206[@key="A"]' || null
-            'list element, sibling still exists'    | '/parent-206/child-206/grand-child-206[@key="A"]'  | '/parent-206/child-206/grand-child-206[@key="X"]' || '/parent-206/child-206/grand-child-206[@key="X"]'
+            'list element, sibling still exists'    | '/parent-206/child-206/grand-child-206[@key="A"]'  | '/parent-206/child-206/grand-child-206[@key="X"]' || "/parent-206/child-206/grand-child-206[@key='X']"
             'container node'                        | '/parent-206'                                      | '/parent-206'                                     || null
-            'container list node'                   | '/parent-206[@key="A"]'                            | '/parent-206[@key="B"]'                           || '/parent-206[@key="B"]'
+            'container list node'                   | '/parent-206[@key="A"]'                            | '/parent-206[@key="B"]'                           || "/parent-206[@key='B']"
             'root node with xpath /'                | '/'                                                | '/'                                               || null
             'root node with xpath passed as blank'  | ''                                                 | ''                                                || null
 
@@ -523,11 +534,11 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
         when: 'data node is deleted'
             objectUnderTest.deleteDataNode(DATASPACE_NAME, ANCHOR_NAME3, datanodeXpath)
         then: 'a #expectedException is thrown'
-            thrown(DataNodeNotFoundException)
+            thrown(expectedException)
         where: 'the following parameters were used'
-            scenario                                        | datanodeXpath
-            'valid data node, non existent child node'      | '/parent-203/child-non-existent'
-            'invalid list element'                          | '/parent-206/child-206/grand-child-206@key="A"]'
+            scenario                                        | datanodeXpath                                    | expectedException
+            'valid data node, non existent child node'      | '/parent-203/child-non-existent'                 | DataNodeNotFoundException
+            'invalid list element'                          | '/parent-206/child-206/grand-child-206@key="A"]' | PathParsingException
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
diff --git a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceSpec.groovy b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceSpec.groovy
index c508762054..52f2309ccd 100644
--- a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceSpec.groovy
+++ b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceSpec.groovy
@@ -1,6 +1,7 @@
 /*
  * ============LICENSE_START=======================================================
  * Copyright (c) 2021 Bell Canada.
+ * Modifications Copyright (C) 2021-2022 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,7 +46,7 @@ class CpsDataPersistenceServiceSpec extends Specification {
 
     def 'Handling of StaleStateException (caused by concurrent updates) during data node tree update.'() {
 
-        def parentXpath = 'parent-01'
+        def parentXpath = '/parent-01'
         def myDataspaceName = 'my-dataspace'
         def myAnchorName = 'my-anchor'
 
@@ -82,7 +83,7 @@ class CpsDataPersistenceServiceSpec extends Specification {
         }
         when: 'getting the data node represented by this fragment'
         def dataNode = objectUnderTest.getDataNode('my-dataspace', 'my-anchor',
-                'parent-01', FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS)
+                '/parent-01', FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS)
         then: 'the leaf is of the correct value and data type'
         def attributeValue = dataNode.leaves.get('some attribute')
         assert attributeValue == expectedValue
@@ -108,7 +109,7 @@ class CpsDataPersistenceServiceSpec extends Specification {
         }
         when: 'getting the data node represented by this fragment'
         def dataNode = objectUnderTest.getDataNode('my-dataspace', 'my-anchor',
-                'parent-01', FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS)
+                '/parent-01', FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS)
         then: 'a data validation exception is thrown'
         thrown(DataValidationException)
     }