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package org.openecomp.core.utilities.file;
import org.testng.Assert;
import org.testng.annotations.Test;
import java.io.IOException;
import java.util.Arrays;
import java.util.Optional;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;
/**
* @author EVITALIY
* @since 24 Oct 17
*/
public class FileContentHandlerTest {
private static final String FILE_NAME = "test-file.txt";
@Test
public void testProcessFileContent() throws Exception {
final int size = 13;
FileContentHandler contentHandler = new FileContentHandler();
final byte[] content = new byte[size];
Arrays.fill(content, (byte) 44);
contentHandler.addFile(FILE_NAME, content);
byte[] actualContent = contentHandler.processFileContent(FILE_NAME, optional -> {
try {
byte[] buffer = new byte[size];
assertTrue(optional.isPresent());
assertEquals(size, optional.get().read(buffer));
return buffer;
} catch (IOException e) {
throw new RuntimeException("Unexpected error", e);
}
});
Assert.assertTrue(Arrays.equals(actualContent, content));
}
@Test
public void testProcessEmptyFileContent() throws Exception {
FileContentHandler contentHandler = new FileContentHandler();
contentHandler.addFile(FILE_NAME, new byte[0]);
assertFalse(contentHandler.processFileContent(FILE_NAME, Optional::isPresent));
}
@Test
public void testProcessNoFileContent() throws Exception {
FileContentHandler contentHandler = new FileContentHandler();
assertFalse(contentHandler.processFileContent("filename", Optional::isPresent));
}
}
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