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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,
   * 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
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   * under the License.
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  package org.apache.syncope.wa.starter.pac4j.saml;
  
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.doNothing;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  import java.io.File;
  import java.util.Base64;
  import org.apache.commons.io.IOUtils;
  import org.apache.syncope.common.lib.to.SAML2SPEntityTO;
  import org.apache.syncope.common.rest.api.service.SAML2SPEntityService;
  import org.apache.syncope.wa.bootstrap.WARestClient;
  import org.junit.jupiter.api.Test;
  import org.pac4j.saml.client.SAML2Client;
  import org.springframework.core.io.ClassPathResource;
  
  public class WASAML2MetadataResolverTest extends BaseWASAML2ClientTest {
  
      @Test
      public void fetchMetadata() throws Exception {
          SAML2Client client = getSAML2Client();
          String keystoreFile = File.createTempFile("keystore", "jks").getCanonicalPath();
          client.getConfiguration().setKeystoreResourceFilepath(keystoreFile);
  
          SAML2SPEntityTO metadataTO = new SAML2SPEntityTO.Builder()
                  .key("Syncope")
                  .metadata(Base64.getEncoder().encodeToString(
                          IOUtils.toByteArray(new ClassPathResource("sp-metadata.xml").getInputStream())))
                  .build();
  
          SAML2SPEntityService saml2SPMetadataService = mock(SAML2SPEntityService.class);
          when(saml2SPMetadataService.get(anyString())).thenReturn(metadataTO);
          doNothing().when(saml2SPMetadataService).set(any(SAML2SPEntityTO.class));
  
          WARestClient waRestClient = mock(WARestClient.class);
          when(waRestClient.getService(SAML2SPEntityService.class)).thenReturn(saml2SPMetadataService);
  
          WASAML2MetadataResolver resolver = new WASAML2MetadataResolver(waRestClient, client);
          assertNotNull(resolver.fetchMetadata());
      }
  }