54 lines
1.7 KiB
Java
54 lines
1.7 KiB
Java
package de.nclazz.commons.io;
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import org.junit.jupiter.api.Assertions;
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import org.junit.jupiter.api.Test;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Arrays;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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public class StreamUtilsTests {
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byte[] alphabetBytes = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
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'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F',
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'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
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'W', 'X', 'Y', 'Z', };
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@Test
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void testInputStreamToByteArray() throws IOException {
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InputStream stream = StreamUtilsTests.class.getResourceAsStream("/test-files/alphabet-utf8.txt");
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byte[] bytes = StreamUtils.inputStreamToByteArray(stream);
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assertTrue(Arrays.equals(alphabetBytes, bytes));
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}
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@Test
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void testStreamPiping() throws IOException {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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InputStream stream = StreamUtilsTests.class.getResourceAsStream("/test-files/alphabet-utf8.txt");
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StreamUtils.pipeStream(stream, bos);
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byte[] bytes = bos.toByteArray();
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assertTrue(Arrays.equals(alphabetBytes, bytes));
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}
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@Test
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void stringToInputStreamRoundTrip() throws IOException {
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String testString = "Hello World!";
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InputStream stream = StreamUtils.toInputStream(testString);
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String backString = StreamUtils.toString(stream);
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stream.close();
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assertEquals(testString, backString);
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}
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}
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