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   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  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
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
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  package org.apache.causeway.testdomain.domainmodel;
  
  import java.nio.charset.StandardCharsets;
  import java.util.List;
  
  import jakarta.inject.Inject;
  
  import org.approvaltests.Approvals;
  import org.approvaltests.reporters.DiffReporter;
  import org.approvaltests.reporters.UseReporter;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  import org.springframework.boot.test.context.SpringBootTest;
  import org.springframework.test.context.TestPropertySource;
  
  import org.apache.causeway.applib.services.factory.FactoryService;
  import org.apache.causeway.applib.services.metamodel.MetaModelServiceMenu;
  import org.apache.causeway.applib.services.metamodel.MetaModelServiceMenu.ExportFormat;
  import org.apache.causeway.applib.value.Clob;
  import org.apache.causeway.core.config.presets.CausewayPresets;
  import org.apache.causeway.testdomain.conf.Configuration_headless;
  import org.apache.causeway.testdomain.model.good.Configuration_usingValidDomain;
  import org.apache.causeway.testing.integtestsupport.applib.ApprovalsOptions;
  
  import lombok.SneakyThrows;
  
  @SpringBootTest(
          classes = {
                  Configuration_headless.class,
                  Configuration_usingValidDomain.class,
  
          },
          properties = {
                  "causeway.core.meta-model.introspector.mode=FULL",
                  "causeway.applib.annotation.domain-object.editing=TRUE",
                  "causeway.core.meta-model.validator.explicit-object-type=FALSE", // does not override any of the imports
            })
  @TestPropertySource({
      CausewayPresets.SilenceMetaModel,
      CausewayPresets.SilenceProgrammingModel
  })
  class MetaModelRegressionTest {
  
      @Inject MetaModelServiceMenu metaModelServiceMenu;
      @Inject FactoryService factoryService;
  
      @BeforeEach
      void setUp() {
          assertNotNull(metaModelServiceMenu);
      }
  
      @Test
      @SneakyThrows
      @UseReporter(DiffReporter.class)
      void verify() {
  
          final Clob metaModelClob = factoryService
                  .mixin(MetaModelServiceMenu.downloadMetaModel.class, metaModelServiceMenu)
                  .act("metamodel", namespaces(), true, ExportFormat.XML, false)
                  .toClob(StandardCharsets.UTF_8);
          final String xml = metaModelClob
                  .asString();
  
          Approvals.verify(xml, ApprovalsOptions.xmlOptions());
      }
  
      // -- HELPER
  
      private List<String> namespaces() {
          return List.of("org.apache.causeway.testdomain.model.good");
      }
  
  }
  