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 *        http://www.apache.org/licenses/LICENSE-2.0
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package org.onap.cps.integration.functional.cps

import java.time.OffsetDateTime
import org.onap.cps.api.CpsQueryService
import org.onap.cps.integration.base.FunctionalSpecBase
import org.onap.cps.api.parameters.FetchDescendantsOption
import org.onap.cps.api.parameters.PaginationOption
import org.onap.cps.api.exceptions.CpsPathException
import spock.lang.Ignore

import static org.onap.cps.api.parameters.FetchDescendantsOption.DIRECT_CHILDREN_ONLY
import static org.onap.cps.api.parameters.FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS
import static org.onap.cps.api.parameters.FetchDescendantsOption.OMIT_DESCENDANTS
import static org.onap.cps.api.parameters.PaginationOption.NO_PAGINATION

class QueryServiceIntegrationSpec extends FunctionalSpecBase {

    CpsQueryService objectUnderTest

    def setup() { objectUnderTest = cpsQueryService }

    def 'Query bookstore using CPS path where #scenario.'() {
        when: 'query data nodes for bookstore container'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, INCLUDE_ALL_DESCENDANTS)
        then: 'the result contains expected number of nodes'
            assert result.size() == expectedResultSize
        and: 'the result contains the expected leaf values'
            result.leaves.forEach( dataNodeLeaves -> {
                expectedLeaves.forEach( (expectedLeafKey,expectedLeafValue) -> {
                    assert dataNodeLeaves[expectedLeafKey] == expectedLeafValue
                })
            })
        where:
            scenario                                      | cpsPath                                    || expectedResultSize | expectedLeaves
            'the AND condition is used'                   | '//books[@lang="English" and @price=15]'   || 2                  | [lang:"English", price:15]
            'the AND is used where result does not exist' | '//books[@lang="English" and @price=1000]' || 0                  | []
    }

    @Ignore  // TODO will be implemented in CPS-2416
    def 'Query data leaf using CPS path for #scenario.'() {
        when: 'query data leaf for bookstore container'
            def result = objectUnderTest.queryDataLeaf(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, Object.class)
        then: 'the result contains the expected number of leaf values'
            assert result.size() == expectedUniqueBooksTitles
        where:
            scenario                  | cpsPath                                       || expectedUniqueBooksTitles
            'all books'               | '//books/@title'                              || 19
            'all books in a category' | '/bookstore/categories[@code=5]/books/@title' || 10
            'non-existing path'       | '/non-existing/@title'                        || 0
    }

    @Ignore
    def 'Query data leaf with type #leafType using CPS path.'() {
        given: 'a cps path query for two books, returning only #leafName'
            def cpsPath = '//books[@title="Matilda" or @title="Good Omens"]/@' + leafName
        when: 'query data leaf for bookstore container'
            def results = objectUnderTest.queryDataLeaf(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, leafType)
        then: 'the result contains the expected leaf values'
            assert results == expectedResults as Set
        where:
            leafName    | leafType      || expectedResults
            'lang'      | String.class  || ['English']
            'price'     | Number.class  || [13, 20]
            'editions'  | List.class    || [[1988, 2000], [2006]]
    }

    @Ignore
    def 'Query data leaf using CPS path with ancestor axis.'() {
        given: 'a cps path query that will return the names of the categories of two books'
            def cpsPath = '//books[@title="Matilda" or @title="Good Omens"]/ancestor::categories/@name'
        when: 'query data leaf for bookstore container'
            def result = objectUnderTest.queryDataLeaf(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, String.class)
        then: 'the result contains the expected leaf values'
            assert result == ['Children', 'Comedy'] as Set
    }

    def 'Cps Path query using comparative and boolean operators.'() {
        given: 'a cps path query in the discount category'
            def cpsPath = "/bookstore/categories[@code='5']/books" + leafCondition
        when: 'a query is executed to get response by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1,
                    cpsPath, OMIT_DESCENDANTS)
        then: 'the cps-path of queryDataNodes has the expectedLeaves'
            def bookPrices = result.collect { it.getLeaves().get('price') }
            assert bookPrices.sort() == expectedBookPrices.sort()
        where: 'the following data is used'
            leafCondition                                 || expectedBookPrices
            '[@price = 5]'                                || [5]
            '[@price < 5]'                                || [1, 2, 3, 4]
            '[@price > 5]'                                || [6, 7, 8, 9, 10]
            '[@price <= 5]'                               || [1, 2, 3, 4, 5]
            '[@price >= 5]'                               || [5, 6, 7, 8, 9, 10]
            '[@price > 10]'                               || []
            '[@price = 3 or @price = 7]'                  || [3, 7]
            '[@price = 3 and @price = 7]'                 || []
            '[@price > 3 and @price <= 6]'                || [4, 5, 6]
            '[@price < 3 or @price > 8]'                  || [1, 2, 9, 10]
            '[@price = 1 or @price = 3 or @price = 5]'    || [1, 3, 5]
            '[@price = 1 or @price >= 8 and @price < 10]' || [1, 8, 9]
            '[@price >= 3 and @price <= 5 or @price > 9]' || [3, 4, 5, 10]
    }

    def 'Cps Path query for leaf value(s) with #scenario.'() {
        when: 'a query is executed to get a data node by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, fetchDescendantsOption)
        then: 'the correct number of parent nodes are returned'
            assert result.size() == expectedNumberOfParentNodes
        and: 'the correct total number of data nodes are returned'
            assert countDataNodesInTree(result) == expectedTotalNumberOfNodes
        where: 'the following data is used'
            scenario                               | cpsPath                                                    | fetchDescendantsOption         || expectedNumberOfParentNodes | expectedTotalNumberOfNodes
            'string and no descendants'            | '/bookstore/categories[@code="1"]/books[@title="Matilda"]' | OMIT_DESCENDANTS               || 1                           | 1
            'integer and descendants'              | '/bookstore/categories[@code="1"]/books[@price=15]'        | INCLUDE_ALL_DESCENDANTS        || 1                           | 1
            'no condition and no descendants'      | '/bookstore/categories'                                    | OMIT_DESCENDANTS               || 5                           | 5
            'no condition and level 1 descendants' | '/bookstore'                                               | new FetchDescendantsOption(1)  || 1                           | 7
            'no condition and level 2 descendants' | '/bookstore'                                               | new FetchDescendantsOption(2)  || 1                           | 28
    }

    def 'Query for attribute by cps path with cps paths that return no data because of #scenario.'() {
        when: 'a query is executed to get data nodes for the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, OMIT_DESCENDANTS)
        then: 'no data is returned'
            assert result.isEmpty()
        where: 'following cps queries are performed'
            scenario                         | cpsPath
            'cps path is incomplete'         | '/bookstore[@title="Matilda"]'
            'leaf value does not exist'      | '/bookstore/categories[@code="1"]/books[@title=\'does not exist\']'
            'incomplete end of xpath prefix' | '/bookstore/categories/books[@price=15]'
    }

    def 'Cps Path query using descendant anywhere and #type (further) descendants.'() {
        when: 'a query is executed to get a data node by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, '/bookstore/categories[@code="1"]', fetchDescendantsOption)
        then: 'the data node has the correct number of children'
            assert result[0].childDataNodes.xpath.sort() == expectedChildNodes.sort()
        where: 'the following data is used'
            type      | fetchDescendantsOption   || expectedChildNodes
            'omit'    | OMIT_DESCENDANTS         || []
            'include' | INCLUDE_ALL_DESCENDANTS  || ["/bookstore/categories[@code='1']/books[@title='Matilda']",
                                                     "/bookstore/categories[@code='1']/books[@title='The Gruffalo']"]
    }

    def 'Cps Path query for all books.'() {
        when: 'a query is executed to get all books'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, '//books', OMIT_DESCENDANTS)
        then: 'the expected number of books are returned'
            assert result.size() == 19
    }

    def 'Cps Path query using descendant anywhere with #scenario.'() {
        when: 'a query is executed to get a data node by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, OMIT_DESCENDANTS)
        then: 'xpaths of the retrieved data nodes are as expected'
            def bookTitles = result.collect { it.getLeaves().get('title') }
            assert bookTitles.sort() == expectedBookTitles.sort()
        where: 'the following data is used'
            scenario                                 | cpsPath                                     || expectedBookTitles
            'string leaf condition'                  | '//books[@title="Matilda"]'                 || ["Matilda"]
            'text condition on leaf'                 | '//books/title[text()="Matilda"]'           || ["Matilda"]
            'text condition case mismatch'           | '//books/title[text()="matilda"]'           || []
            'text condition on int leaf'             | '//books/price[text()="20"]'                || ["A Book with No Language", "Matilda"]
            'text condition on leaf-list'            | '//books/authors[text()="Terry Pratchett"]' || ["Good Omens", "The Colour of Magic", "The Light Fantastic"]
            'text condition partial match'           | '//books/authors[text()="Terry"]'           || []
            'text condition (existing) empty string' | '//books/lang[text()=""]'                   || ["A Book with No Language"]
            'text condition on int leaf-list'        | '//books/editions[text()="2000"]'           || ["Matilda"]
            'match of leaf containing /'             | '//books[@lang="N/A"]'                      || ["Logarithm tables"]
            'text condition on leaf containing /'    | '//books/lang[text()="N/A"]'                || ["Logarithm tables"]
            'match of key containing /'              | '//books[@title="Debian GNU/Linux"]'        || ["Debian GNU/Linux"]
            'text condition on key containing /'     | '//books/title[text()="Debian GNU/Linux"]'  || ["Debian GNU/Linux"]
    }

    def 'Query for attribute by cps path using contains condition #scenario.'() {
        when: 'a query is executed to get response by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, INCLUDE_ALL_DESCENDANTS)
        then: 'xpaths of the retrieved data nodes are as expected'
            def bookTitles = result.collect { it.getLeaves().get('title') }
            assert bookTitles.sort() == expectedBookTitles.sort()
        where: 'the following data is used'
            scenario                                 | cpsPath                           || expectedBookTitles
            'contains condition with leaf'           | '//books[contains(@title,"Mat")]' || ["Matilda"]
            'contains condition with case-sensitive' | '//books[contains(@title,"Ti")]'  || []
            'contains condition with Integer Value'  | '//books[contains(@price,"15")]'  || ["Annihilation", "The Gruffalo"]
    }

    def 'Query for attribute by cps path using contains condition with no value.'() {
        when: 'a query is executed to get response by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, '//books[contains(@title,"")]', OMIT_DESCENDANTS)
        then: 'all books are returned'
            assert result.size() == 19
    }

    def 'Cps Path query using descendant anywhere with #scenario condition for a container element.'() {
        when: 'a query is executed to get a data node by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, OMIT_DESCENDANTS)
        then: 'book titles from the retrieved data nodes are as expected'
            def bookTitles = result.collect { it.getLeaves().get('title') }
            assert bookTitles.sort() == expectedBookTitles.sort()
        where: 'the following data is used'
            scenario                                                   | cpsPath                                                                || expectedBookTitles
            'one leaf'                                                 | '//books[@price=14]'                                                   || ['The Light Fantastic']
            'one leaf with ">" condition'                              | '//books[@price>14]'                                                   || ['A Book with No Language', 'Annihilation', 'Debian GNU/Linux', 'Matilda', 'The Gruffalo']
            'one text'                                                 | '//books/authors[text()="Terry Pratchett"]'                            || ['Good Omens', 'The Colour of Magic', 'The Light Fantastic']
            'more than one leaf'                                       | '//books[@price=12 and @lang="English"]'                               || ['The Colour of Magic']
            'more than one leaf has "OR" condition'                    | '//books[@lang="English" or @price=15]'                                || ['Annihilation', 'Good Omens', 'Matilda', 'The Colour of Magic', 'The Gruffalo', 'The Light Fantastic']
            'more than one leaf has "OR" condition with non-json data' | '//books[@title="xyz" or @price=13]'                                   || ['Good Omens']
            'more than one leaf has multiple AND'                      | '//books[@lang="English" and @price=13 and @edition=1983]'             || []
            'more than one leaf has multiple OR'                       | '//books[ @title="Matilda" or @price=15 or @edition=2006]'             || ['Annihilation', 'Matilda', 'The Gruffalo']
            'leaves reversed in order'                                 | '//books[@lang="English" and @price=12]'                               || ['The Colour of Magic']
            'more than one leaf has combination of AND/OR'             | '//books[@edition=1983 and @price=13 or @title="Good Omens"]'          || ['Good Omens']
            'more than one leaf has OR/AND'                            | '//books[@title="The Light Fantastic" or @price=11 and @edition=1983]' || ['The Light Fantastic']
            'leaf and text'                                            | '//books[@price=14]/authors[text()="Terry Pratchett"]'                 || ['The Light Fantastic']
            'leaf and contains'                                        | '//books[contains(@price,"13")]'                                       || ['Good Omens']
    }

    def 'Cps Path query using descendant anywhere with #scenario condition(s) for a list element.'() {
        when: 'a query is executed to get a data node by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, INCLUDE_ALL_DESCENDANTS)
        then: 'xpaths of the retrieved data nodes are as expected'
            result.xpath.toList() == ["/bookstore/premises/addresses[@house-number='2' and @street='Main Street']"]
        where: 'the following data is used'
            scenario                              | cpsPath
            'full composite key'                  | '//addresses[@house-number=2 and @street="Main Street"]'
            'one partial key leaf'                | '//addresses[@house-number=2]'
            'one non key leaf'                    | '//addresses[@county="Kildare"]'
            'mix of partial key and non key leaf' | '//addresses[@street="Main Street" and @county="Kildare"]'
    }

    def 'Query for attribute by cps path of type ancestor with #scenario.'() {
        when: 'the given cps path is parsed'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, OMIT_DESCENDANTS)
        then: 'the xpaths of the retrieved data nodes are as expected'
            assert result.xpath.sort() == expectedXPaths.sort()
        where: 'the following data is used'
            scenario                                    | cpsPath                                               || expectedXPaths
            'multiple list-ancestors'                   | '//books/ancestor::categories'                        || ["/bookstore/categories[@code='1']", "/bookstore/categories[@code='2']", "/bookstore/categories[@code='3']", "/bookstore/categories[@code='4']", "/bookstore/categories[@code='5']"]
            'one ancestor with list value'              | '//books/ancestor::categories[@code="1"]'             || ["/bookstore/categories[@code='1']"]
            'top ancestor'                              | '//books/ancestor::bookstore'                         || ["/bookstore"]
            'list with index value in the xpath prefix' | '//categories[@code="1"]/books/ancestor::bookstore'   || ["/bookstore"]
            'ancestor with parent list'                 | '//books/ancestor::bookstore/categories'              || ["/bookstore/categories[@code='1']", "/bookstore/categories[@code='2']", "/bookstore/categories[@code='3']", "/bookstore/categories[@code='4']", "/bookstore/categories[@code='5']"]
            'ancestor with parent'                      | '//books/ancestor::bookstore/categories[@code="2"]'   || ["/bookstore/categories[@code='2']"]
            'ancestor combined with text condition'     | '//books/title[text()="Matilda"]/ancestor::bookstore' || ["/bookstore"]
            'ancestor with parent that does not exist'  | '//books/ancestor::parentDoesNoExist/categories'      || []
            'ancestor does not exist'                   | '//books/ancestor::ancestorDoesNotExist'              || []
            'ancestor combined with contains condition' | '//books[contains(@title,"Mat")]/ancestor::bookstore' || ["/bookstore"]
            'ancestor is the same as search target'     | '//books/ancestor::books'                             || []
    }

    def 'Query for attribute by cps path of type ancestor with #scenario descendants.'() {
        when: 'the given cps path is parsed'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, '//books/ancestor::bookstore', fetchDescendantsOption)
        then: 'the xpaths of the retrieved data nodes are as expected'
            assert countDataNodesInTree(result) == expectedNumberOfNodes
        where: 'the following data is used'
            scenario | fetchDescendantsOption  || expectedNumberOfNodes
            'no'     | OMIT_DESCENDANTS        || 1
            'direct' | DIRECT_CHILDREN_ONLY    || 7
            'all'    | INCLUDE_ALL_DESCENDANTS || 28
    }

    def 'Cps Path query with #scenario throws a CPS Path Exception.'() {
        when: 'trying to execute a query with a syntax (parsing) error'
            objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, OMIT_DESCENDANTS)
        then: 'a cps path exception is thrown'
            thrown(CpsPathException)
        where: 'the following data is used'
            scenario                           | cpsPath
            'cpsPath that cannot be parsed'    | 'cpsPath that cannot be parsed'
            'String with comparative operator' | '//books[@lang>"German" and @price>10]'
    }

    def 'Cps Path query across anchors with #scenario.'() {
        when: 'a query is executed to get a data nodes across anchors by the given CpsPath'
            def result = objectUnderTest.queryDataNodesAcrossAnchors(FUNCTIONAL_TEST_DATASPACE_1, cpsPath, OMIT_DESCENDANTS, NO_PAGINATION)
        then: 'the correct dataspace is queried'
            assert result.dataspace.toSet() == [FUNCTIONAL_TEST_DATASPACE_1].toSet()
        and: 'correct anchors are queried'
            assert result.anchorName.toSet() == [BOOKSTORE_ANCHOR_1, BOOKSTORE_ANCHOR_2].toSet()
        and: 'the correct number of nodes is returned'
            assert result.size() == expectedXpathsPerAnchor.size() * NUMBER_OF_ANCHORS_PER_DATASPACE_WITH_BOOKSTORE_DATA
        and: 'the queried nodes have expected xpaths'
            assert result.xpath.toSet() == expectedXpathsPerAnchor.toSet()
        where: 'the following data is used'
            scenario                                    | cpsPath                                               || expectedXpathsPerAnchor
            'container node'                            | '/bookstore'                                          || ["/bookstore"]
            'list node'                                 | '/bookstore/categories'                               || ["/bookstore/categories[@code='1']", "/bookstore/categories[@code='2']", "/bookstore/categories[@code='3']", "/bookstore/categories[@code='4']", "/bookstore/categories[@code='5']"]
            'integer leaf-condition'                    | '/bookstore/categories[@code="1"]/books[@price=15]'   || ["/bookstore/categories[@code='1']/books[@title='The Gruffalo']"]
            'multiple list-ancestors'                   | '//books/ancestor::categories'                        || ["/bookstore/categories[@code='1']", "/bookstore/categories[@code='2']", "/bookstore/categories[@code='3']", "/bookstore/categories[@code='4']", "/bookstore/categories[@code='5']"]
            'one ancestor with list value'              | '//books/ancestor::categories[@code="1"]'             || ["/bookstore/categories[@code='1']"]
            'list with index value in the xpath prefix' | '//categories[@code="1"]/books/ancestor::bookstore'   || ["/bookstore"]
            'ancestor with parent list'                 | '//books/ancestor::bookstore/categories'              || ["/bookstore/categories[@code='1']", "/bookstore/categories[@code='2']", "/bookstore/categories[@code='3']", "/bookstore/categories[@code='4']", "/bookstore/categories[@code='5']"]
            'ancestor with parent list element'         | '//books/ancestor::bookstore/categories[@code="2"]'   || ["/bookstore/categories[@code='2']"]
            'ancestor combined with text condition'     | '//books/title[text()="Matilda"]/ancestor::bookstore' || ["/bookstore"]
    }

    def 'Cps Path query across anchors with #scenario descendants.'() {
        when: 'a query is executed to get a data node by the given cps path'
            def result = objectUnderTest.queryDataNodesAcrossAnchors(FUNCTIONAL_TEST_DATASPACE_1, '/bookstore', fetchDescendantsOption, NO_PAGINATION)
        then: 'the correct dataspace was queried'
            assert result.dataspace.toSet() == [FUNCTIONAL_TEST_DATASPACE_1].toSet()
        and: 'correct number of datanodes are returned'
            assert countDataNodesInTree(result) == expectedNumberOfNodesPerAnchor * NUMBER_OF_ANCHORS_PER_DATASPACE_WITH_BOOKSTORE_DATA
        where: 'the following data is used'
            scenario | fetchDescendantsOption  || expectedNumberOfNodesPerAnchor
            'no'     | OMIT_DESCENDANTS        || 1
            'direct' | DIRECT_CHILDREN_ONLY    || 7
            'all'    | INCLUDE_ALL_DESCENDANTS || 28
    }

    def 'Cps Path query across anchors with ancestors and #scenario descendants.'() {
        when: 'a query is executed to get a data node by the given cps path'
            def result = objectUnderTest.queryDataNodesAcrossAnchors(FUNCTIONAL_TEST_DATASPACE_1, '//books/ancestor::bookstore', fetchDescendantsOption, NO_PAGINATION)
        then: 'the correct dataspace was queried'
            assert result.dataspace.toSet() == [FUNCTIONAL_TEST_DATASPACE_1].toSet()
        and: 'correct number of datanodes are returned'
            assert countDataNodesInTree(result) == expectedNumberOfNodesPerAnchor * NUMBER_OF_ANCHORS_PER_DATASPACE_WITH_BOOKSTORE_DATA
        where: 'the following data is used'
            scenario | fetchDescendantsOption  || expectedNumberOfNodesPerAnchor
            'no'     | OMIT_DESCENDANTS        || 1
            'direct' | DIRECT_CHILDREN_ONLY    || 7
            'all'    | INCLUDE_ALL_DESCENDANTS || 28
    }

    def 'Cps Path query across anchors with syntax error throws a CPS Path Exception.'() {
        when: 'trying to execute a query with a syntax (parsing) error'
            objectUnderTest.queryDataNodesAcrossAnchors(FUNCTIONAL_TEST_DATASPACE_1, 'cpsPath that cannot be parsed' , OMIT_DESCENDANTS, NO_PAGINATION)
        then: 'a cps path exception is thrown'
            thrown(CpsPathException)
    }

    def 'Cps Path querys with all descendants including descendants that are list entries: #scenario.'() {
        when: 'a query is executed to get a data node by the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, INCLUDE_ALL_DESCENDANTS)
        then: 'correct number of datanodes are returned'
            assert countDataNodesInTree(result) == expectedNumberOfDataNodes
        where:
            scenario                              | cpsPath                                 || expectedNumberOfDataNodes
            'absolute path all list entries'      | '/bookstore/categories'                 || 24
            'absolute path 1 list entry by key'   | '/bookstore/categories[@code="3"]'      || 5
            'absolute path 1 list entry by name'  | '/bookstore/categories[@name="Comedy"]' || 5
            'relative path all list entries'      | '//categories'                          || 24
            'relative path 1 list entry by key'   | '//categories[@code="3"]'               || 5
            'relative path 1 list entry by leaf'  | '//categories[@name="Comedy"]'          || 5
            'incomplete absolute path'            | '/categories'                           || 0
            'incomplete absolute 1 list entry'    | '/categories[@code="3"]'                || 0
    }

    def 'Cps Path query contains #wildcard.'() {
        when: 'a query is executed with a wildcard in the given cps path'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, INCLUDE_ALL_DESCENDANTS)
        then: 'no results are returned, as Cps Path query does not interpret wildcard characters'
            assert result.isEmpty()
        where:
            wildcard                                   | cpsPath
            '  sql wildcard in parent path list index' | '/bookstore/categories[@code="%"]/books'
            'regex wildcard in parent path list index' | '/bookstore/categories[@code=".*"]/books'
            '  sql wildcard in leaf-condition'         | '/bookstore/categories[@code="1"]/books[@title="%"]'
            'regex wildcard in leaf-condition'         | '/bookstore/categories[@code="1"]/books[@title=".*"]'
            '  sql wildcard in text-condition'         | '/bookstore/categories[@code="1"]/books/title[text()="%"]'
            'regex wildcard in text-condition'         | '/bookstore/categories[@code="1"]/books/title[text()=".*"]'
            '  sql wildcard in contains-condition'     | '/bookstore/categories[@code="1"]/books[contains(@title, "%")]'
            'regex wildcard in contains-condition'     | '/bookstore/categories[@code="1"]/books[contains(@title, ".*")]'
    }

    def 'Cps Path query can return a data node containing [@ in xpath #scenario.'() {
        given: 'a book with special characters [@ and ] in title'
            cpsDataService.saveData(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, "/bookstore/categories[@code='1']", '{"books": [ {"title":"[@hello=world]"} ] }', OffsetDateTime.now())
        when: 'a query is executed'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, OMIT_DESCENDANTS)
        then: 'the node is returned'
            assert result.size() == 1
        cleanup: 'the new datanode'
            cpsDataService.deleteDataNode(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, "/bookstore/categories[@code='1']/books[@title='[@hello=world]']", OffsetDateTime.now())
        where:
            scenario             || cpsPath
            'leaf-condition'     || "/bookstore/categories[@code='1']/books[@title='[@hello=world]']"
            'text-condition'     || "/bookstore/categories[@code='1']/books/title[text()='[@hello=world]']"
            'contains-condition' || "/bookstore/categories[@code='1']/books[contains(@title, '[@hello=world]')]"
    }

    def 'Cps Path get and query can handle apostrophe inside #quotes.'() {
        given: 'a book with special characters in title'
            cpsDataService.saveData(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, "/bookstore/categories[@code='1']",
                    '{"books": [ {"title":"I\'m escaping"} ] }', OffsetDateTime.now())
        when: 'a query is executed'
            def result = objectUnderTest.queryDataNodes(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, cpsPath, OMIT_DESCENDANTS)
        then: 'the node is returned'
            assert result.size() == 1
            assert result[0].xpath == "/bookstore/categories[@code='1']/books[@title='I''m escaping']"
        cleanup: 'the new datanode'
            cpsDataService.deleteDataNode(FUNCTIONAL_TEST_DATASPACE_1, BOOKSTORE_ANCHOR_1, "/bookstore/categories[@code='1']/books[@title='I''m escaping']", OffsetDateTime.now())
        where:
            quotes               || cpsPath
            'single quotes'      || "/bookstore/categories[@code='1']/books[@title='I''m escaping']"
            'double quotes'      || '/bookstore/categories[@code="1"]/books[@title="I\'m escaping"]'
            'text-condition'     || "/bookstore/categories[@code='1']/books/title[text()='I''m escaping']"
            'contains-condition' || "/bookstore/categories[@code='1']/books[contains(@title, 'I''m escaping')]"
    }

    def 'Cps Path query across anchors using pagination option with #scenario.'() {
        when: 'a query is executed to get a data nodes across anchors by the given CpsPath and pagination option'
            def result = objectUnderTest.queryDataNodesAcrossAnchors(FUNCTIONAL_TEST_DATASPACE_1, '/bookstore', OMIT_DESCENDANTS, new PaginationOption(pageIndex, pageSize))
        then: 'correct bookstore names are queried'
            def bookstoreNames = result.collect { it.getLeaves().get('bookstore-name') }
            assert bookstoreNames.toSet() == expectedBookstoreNames.toSet()
        and: 'the correct number of page size is returned'
            assert result.size() == expectedPageSize
        and: 'the queried nodes have expected anchor names'
            assert result.anchorName.toSet() == expectedAnchors.toSet()
        where: 'the following data is used'
            scenario                       | pageIndex | pageSize || expectedPageSize || expectedAnchors                          || expectedBookstoreNames
            '1st page with one anchor'     | 1         | 1        || 1                || [BOOKSTORE_ANCHOR_1]                     || ['Easons-1']
            '1st page with two anchor'     | 1         | 2        || 2                || [BOOKSTORE_ANCHOR_1, BOOKSTORE_ANCHOR_2] || ['Easons-1', 'Easons-2']
            '2nd page'                     | 2         | 1        || 1                || [BOOKSTORE_ANCHOR_2]                     || ['Easons-2']
            'no 2nd page due to page size' | 2         | 2        || 0                || []                                       || []
    }

    def 'Cps Path query across anchors using pagination option for ancestor axis.'() {
        when: 'a query is executed to get a data nodes across anchors by the given CpsPath and pagination option'
            def result = objectUnderTest.queryDataNodesAcrossAnchors(FUNCTIONAL_TEST_DATASPACE_1, '//books/ancestor::categories', INCLUDE_ALL_DESCENDANTS, new PaginationOption(1, 2))
        then: 'correct category codes are queried'
            def categoryNames = result.collect { it.getLeaves().get('name') }
            assert categoryNames.toSet() == ['Discount books', 'Computing', 'Comedy', 'Thriller', 'Children'].toSet()
        and: 'the queried nodes have expected anchors'
            assert result.anchorName.toSet() == [BOOKSTORE_ANCHOR_1, BOOKSTORE_ANCHOR_2].toSet()
    }

    def 'Count number of anchors for given dataspace name and cps path'() {
        expect: '/bookstore is present in two anchors'
            assert objectUnderTest.countAnchorsForDataspaceAndCpsPath(FUNCTIONAL_TEST_DATASPACE_1, '/bookstore') == 2
    }

    def 'Cps Path query across anchors using no pagination'() {
        when: 'a query is executed to get a data nodes across anchors by the given CpsPath and pagination option'
            def result = objectUnderTest.queryDataNodesAcrossAnchors(FUNCTIONAL_TEST_DATASPACE_1, '/bookstore', OMIT_DESCENDANTS, NO_PAGINATION)
        then: 'all bookstore names are queried'
            def bookstoreNames = result.collect { it.getLeaves().get('bookstore-name') }
            assert bookstoreNames.toSet() == ['Easons-1', 'Easons-2'].toSet()
        and: 'the correct number of page size is returned'
            assert result.size() == 2
        and: 'the queried nodes have expected bookstore names'
            assert result.anchorName.toSet() == [BOOKSTORE_ANCHOR_1, BOOKSTORE_ANCHOR_2].toSet()
    }
}