/*-
    * #%L
    * io.earcam.instrumental.reflect
    * %%
    * Copyright (C) 2018 earcam
    * %%
    * SPDX-License-Identifier: (BSD-3-Clause OR EPL-1.0 OR Apache-2.0 OR MIT)
    * 
    * You <b>must</b> choose to accept, in full - any individual or combination of 
   * the following licenses:
   * <ul>
   * 	<li><a href="https://opensource.org/licenses/BSD-3-Clause">BSD-3-Clause</a></li>
   * 	<li><a href="https://www.eclipse.org/legal/epl-v10.html">EPL-1.0</a></li>
   * 	<li><a href="https://www.apache.org/licenses/LICENSE-2.0">Apache-2.0</a></li>
   * 	<li><a href="https://opensource.org/licenses/MIT">MIT</a></li>
   * </ul>
   * #L%
   */package io.earcam.instrumental.reflect;
  
  import static java.nio.charset.StandardCharsets.UTF_8;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.*;
  import static org.hamcrest.io.FileMatchers.*;
  
  import java.io.ByteArrayInputStream;
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  
  import javax.annotation.concurrent.Immutable;
  
  import org.junit.jupiter.api.Test;
  
  import io.earcam.utilitarian.io.IoStreams;
  
  public class ResourcesTest {
  
  	@Test
  	void readsAllBytesAlbeitOneAtATime()
  	{
  		byte[] bytes = "blah blah blah".getBytes(UTF_8);
  		byte[] read = Resources.readAllBytes(new ByteArrayInputStream(bytes));
  
  		assertThat(read, is(equalTo(bytes)));
  	}
  
  
  	@Test
  	void classAsBytes() throws IOException
  	{
  		byte[] read = Resources.classAsBytes(ResourcesTest.class);
  
  		String resource = ResourcesTest.class.getCanonicalName().replace('.', '/') + ".class";
  		try(InputStream in = ResourcesTest.class.getClassLoader().getResourceAsStream(resource)) {
  			byte[] expected = IoStreams.readAllBytes(in);
  
  			assertThat(read, is(equalTo(expected)));
  		}
  	}
  
  
  	@Test
  	void sourceOfResourceIsAJar()
  	{
  		// EARCAM_SNIPPET_BEGIN: source-jar
  		String resource = Resources.sourceOfResource(Immutable.class);
  
  		assertThat(new File(resource), is(aReadableFile()));
  
  		assertThat(resource, allOf(
  				containsString("/com/google/code/findbugs/jsr305/"),
  				endsWith(".jar")));
  		// EARCAM_SNIPPET_END: source-jar
  	}
  
  
  	@Test
  	void sourceOfResourceIsATheFileSystem()
  	{
  		// EARCAM_SNIPPET_BEGIN: source-dir
  		String resource = Resources.sourceOfResource(ResourcesTest.class);
  
  		assertThat(resource, new File(resource), is(anExistingDirectory()));
  
  		assertThat(resource, endsWith("/target/test-classes/"));
  		// EARCAM_SNIPPET_END: source-dir
  	}
  }