TestBasicHttpEntity.java

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 * to you under the Apache License, Version 2.0 (the
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 * KIND, either express or implied.  See the License for the
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package org.apache.hc.core5.http.io.entity;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.nio.charset.StandardCharsets;

import org.apache.hc.core5.http.ContentType;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

/**
 * Unit tests for {@link BasicHttpEntity}.
 *
 */
class TestBasicHttpEntity {

    @Test
    void testBasics() {
        final byte[] bytes = "Message content".getBytes(StandardCharsets.US_ASCII);
        final BasicHttpEntity httpentity = new BasicHttpEntity(new ByteArrayInputStream(bytes), bytes.length, null);
        Assertions.assertEquals(bytes.length, httpentity.getContentLength());
        // always false
        Assertions.assertFalse(httpentity.isRepeatable());
        // always true
        Assertions.assertTrue(httpentity.isStreaming());
    }

    @Test
    void testConstructorNullContent() {
        // BasicHttpEntity(InputStream, ContentType)
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, ContentType.APPLICATION_ATOM_XML));
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, null));
        // BasicHttpEntity(InputStream, ContentType, boolean)
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, ContentType.APPLICATION_ATOM_XML, false));
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, null, false));
        // BasicHttpEntity(InputStream, ContentType, String)
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, ContentType.APPLICATION_ATOM_XML, ""));
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, null, ""));
        // BasicHttpEntity(InputStream, long, ContentType)
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, 0, ContentType.APPLICATION_ATOM_XML));
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, 0, null));
        // BasicHttpEntity(InputStream, long, ContentType, String)
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, 0, ContentType.APPLICATION_ATOM_XML, ""));
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, 0, null, ""));
        // BasicHttpEntity(InputStream, long, ContentType, String, boolean)
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, 0, ContentType.APPLICATION_ATOM_XML, "", false));
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHttpEntity(null, 0, null, "", false));
    }

    @Test
    void testToString() throws Exception {
        try (final BasicHttpEntity httpentity = new BasicHttpEntity(EmptyInputStream.INSTANCE, 10,
                ContentType.parseLenient("blah"), "yada", true)) {
            Assertions.assertEquals(
                    "[Entity-Class: BasicHttpEntity, Content-Type: blah, Content-Encoding: yada, chunked: true]",
                    httpentity.toString());
        }
    }

    @Test
    void testWriteTo() throws Exception {
        final byte[] bytes = "Message content".getBytes(StandardCharsets.US_ASCII);
        final BasicHttpEntity httpentity = new BasicHttpEntity(new ByteArrayInputStream(bytes), bytes.length,
                ContentType.TEXT_PLAIN);
        // always false
        Assertions.assertFalse(httpentity.isRepeatable());
        // always true
        Assertions.assertTrue(httpentity.isStreaming());
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        httpentity.writeTo(out);
        final byte[] bytes2 = out.toByteArray();
        Assertions.assertNotNull(bytes2);
        Assertions.assertEquals(bytes.length, bytes2.length);
        for (int i = 0; i < bytes.length; i++) {
            Assertions.assertEquals(bytes[i], bytes2[i]);
        }
    }

}