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 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
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 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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package org.grails.orm.hibernate.cfg.domainbinding.hibernate

import grails.gorm.tests.HibernateGormDatastoreSpec
import grails.persistence.Entity

class HibernateManyToManyPropertySpec extends HibernateGormDatastoreSpec {

    void setupSpec() {
        manager.registerDomainClasses(HMMPA, HMMPB)
    }

    def "test HibernateManyToManyProperty basic methods"() {
        given:
        def entityA = (HibernatePersistentEntity) getMappingContext().getPersistentEntity(HMMPA.name)
        def property = (HibernateManyToManyProperty) entityA.getPropertyByName("others")
        def mbc = getGrailsDomainBinder().metadataBuildingContext
        def rootClass = new org.hibernate.mapping.RootClass(mbc)
        rootClass.setEntityName(HMMPA.name)
        def mockCollection = new org.hibernate.mapping.Set(mbc, rootClass)
        property.setCollection(mockCollection, "")

        expect:
        property.getHibernateAssociatedEntity().name == HMMPB.name
        property.getReferencedEntityName() == HMMPB.name
        property.isManyToMany()
        !property.isOneToMany()
        property.isLazy()
        !property.isAssociationColumnNullable()
    }

    def "test getCollection throws exception if not initialized"() {
        given:
        def entityA = (HibernatePersistentEntity) getMappingContext().getPersistentEntity(HMMPA.name)
        def property = (HibernateManyToManyProperty) entityA.getPropertyByName("others")
        property.setHibernateCollection(null)

        when:
        property.getCollection()

        then:
        def e = thrown(org.hibernate.MappingException)
        e.message.contains("Hibernate Collection has not been initialized")
    }

    def "test setCollection with path configures metadata"() {
        given:
        def entityA = (HibernatePersistentEntity) getMappingContext().getPersistentEntity(HMMPA.name)
        def property = (HibernateManyToManyProperty) entityA.getPropertyByName("others")
        def mbc = getGrailsDomainBinder().metadataBuildingContext
        def rootClass = new org.hibernate.mapping.RootClass(mbc)
        rootClass.setEntityName(HMMPA.name)
        def mockCollection = new org.hibernate.mapping.Set(mbc, rootClass)

        when:
        property.setCollection(mockCollection, "foo.bar")

        then:
        property.getCollection() == mockCollection
        mockCollection.getRole() == "${HMMPA.name}.foo.bar.others".toString()
        mockCollection.getFetchMode() == property.getFetchMode()
        mockCollection.getBatchSize() == property.getBatchSize()
    }

    def "test validateOwningSide"() {
        given:
        def entityA = (HibernatePersistentEntity) getMappingContext().getPersistentEntity(HMMPA.name)
        def propertyA = (HibernateManyToManyProperty) entityA.getPropertyByName("others")
        def mbc = getGrailsDomainBinder().metadataBuildingContext
        
        def rootClass = new org.hibernate.mapping.RootClass(mbc)
        rootClass.setEntityName(HMMPA.name)
        
        def list = new org.hibernate.mapping.List(mbc, rootClass)
        propertyA.setCollection(list, "")

        expect: "Owning side passes"
        propertyA.isOwningSide()
        propertyA.validateOwningSide()

        when: "Non-owning side fails"
        def entityB = (HibernatePersistentEntity) getMappingContext().getPersistentEntity(HMMPB.name)
        def propertyB = (HibernateManyToManyProperty) entityB.getPropertyByName("owners")
        propertyB.setCollection(new org.hibernate.mapping.List(mbc, rootClass), "")
        propertyB.validateOwningSide()

        then:
        def e = thrown(org.hibernate.MappingException)
        e.message.contains("List collection types only supported on the owning side")
    }
}

@Entity
class HMMPA {
    Long id
    static hasMany = [others: HMMPB]
    static mapping = {
        others joinTable: [name: "h_m_m_p_a_others"]
    }
}

@Entity
class HMMPB {
    Long id
    static hasMany = [owners: HMMPA]
    static belongsTo = [owners: HMMPA]
}
