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   * Licensed to the Apache Software Foundation (ASF) under one
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   * 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
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   *
   *        http://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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   * under the License.
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   */
  
  package org.apache.causeway.persistence.jdo.datanucleus.oid;
  
  import java.util.stream.Stream;
  
  import org.assertj.core.api.Assertions;
  import org.datanucleus.identity.DatastoreUniqueLongId;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.Arguments;
  import org.junit.jupiter.params.provider.MethodSource;
  
  import org.apache.causeway.persistence.jdo.datanucleus.valuetypes.DnDatastoreUniqueLongIdValueSemantics;
  
  class IdStringifierForDatastoreId_DatastoreUniqueLongId_str_Test {
  
      public static Stream<Arguments> roundtrip() {
          return Stream.of(
                  Arguments.of(1L),
                  Arguments.of(0L),
                  Arguments.of(10L),
                  Arguments.of(Long.MAX_VALUE),
                  Arguments.of(Long.MIN_VALUE)
          );
      }
  
      //static class Customer {}
  
      @ParameterizedTest
      @MethodSource()
      void roundtrip(final long value) {
  
          //var entityType = Customer.class;
  
          String strValue = "" + value;
          var stringifier = new DnDatastoreUniqueLongIdValueSemantics();
  
          var stringified = stringifier.enstring(new DatastoreUniqueLongId(strValue));
          var parse = stringifier.destring(stringified); // no need to pass entityType
  
          Assertions.assertThat(parse.getKeyAsObject()).isEqualTo(value);
          // UnsupportedOperationException if attempt this.
          // Assertions.assertThat(parse.getTargetClassName()).isEqualTo(entityType.getName());
  
          var decomposed = stringifier.decompose(new DatastoreUniqueLongId(strValue));
          var composed = stringifier.compose(decomposed);
  
          Assertions.assertThat(composed.getKeyAsObject()).isEqualTo(value);
          //Assertions.assertThat(composed.getTargetClassName()).isEqualTo(entityType.getName());
      }
  
  }
  