TestSerializableEntity.java

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 * to you under the Apache License, Version 2.0 (the
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package org.apache.hc.core5.http.io.entity;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

class TestSerializableEntity {

    public static class SerializableObject implements Serializable {

        private static final long serialVersionUID = 1833335861188359573L;

        public final int intValue = 4;

        public final String stringValue = "Hello";

        public SerializableObject() {
        }

    }

    @Test
    void testBasics() throws Exception {
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final ObjectOutputStream out = new ObjectOutputStream(baos);

        final Serializable serializableObj = new SerializableObject();
        out.writeObject(serializableObj);

        try (final SerializableEntity httpentity = new SerializableEntity(serializableObj, null)) {

            Assertions.assertEquals(-1, httpentity.getContentLength());
            Assertions.assertNotNull(httpentity.getContent());
            Assertions.assertTrue(httpentity.isRepeatable());
            Assertions.assertFalse(httpentity.isStreaming());
        }
    }

    @Test
    void testWriteTo() throws Exception {
        final Serializable serializableObj = new SerializableObject();
        try (final SerializableEntity httpentity = new SerializableEntity(serializableObj, null)) {

            final ByteArrayOutputStream out = new ByteArrayOutputStream();
            httpentity.writeTo(out);
            final byte[] bytes = out.toByteArray();
            Assertions.assertNotNull(bytes);
            final ObjectInputStream oin = new ObjectInputStream(new ByteArrayInputStream(bytes));
            final SerializableObject serIn = (SerializableObject) oin.readObject();
            Assertions.assertEquals(4, serIn.intValue);
            Assertions.assertEquals("Hello", serIn.stringValue);

            Assertions.assertThrows(NullPointerException.class, () -> httpentity.writeTo(null));
        }
    }

}