grails.testing.gorm.DomainUnitTest.groovy Maven / Gradle / Ivy

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Grace Framework : Grace Test Support

There is a newer version: 2023.1.0-M1

/*
 * Copyright 2016-2022 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package grails.testing.gorm

import java.lang.reflect.ParameterizedType

import groovy.transform.CompileStatic

@CompileStatic
trait DomainUnitTest implements DataTest {

    private T domainInstance
    private static Class domainClass

    Class[] getDomainClassesToMock() {
        [getDomainUnderTest()].toArray(Class)
    }

    /**
     * @return An instance of the domain class
     */
    T getDomain() {
        if (domainInstance == null) {
            domainInstance = getDomainUnderTest().newInstance()
        }
        domainInstance
    }

    private Class getDomainUnderTest() {
        if (domainClass == null) {
            ParameterizedType parameterizedType = (ParameterizedType) getClass().genericInterfaces.find { genericInterface ->
                genericInterface instanceof ParameterizedType &&
                        DomainUnitTest.isAssignableFrom((Class) ((ParameterizedType) genericInterface).rawType)
            }

            domainClass = (Class) parameterizedType?.actualTypeArguments[0]
        }
        domainClass
    }

}