TestHeaderElement.java

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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
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 * KIND, either express or implied.  See the License for the
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 *
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package org.apache.hc.core5.http.message;

import org.apache.hc.core5.http.HeaderElement;
import org.apache.hc.core5.http.NameValuePair;
import org.apache.hc.core5.util.CharArrayBuffer;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

/**
 * Simple tests for {@link HeaderElement}.
 */
class TestHeaderElement {

    @Test
    void testConstructor3() {
        final HeaderElement element = new BasicHeaderElement("name", "value",
                new BasicNameValuePair("param1", "value1"),
                new BasicNameValuePair("param2", "value2"));
        Assertions.assertEquals("name", element.getName());
        Assertions.assertEquals("value", element.getValue());
        Assertions.assertEquals(2, element.getParameters().length);
        Assertions.assertEquals("value1", element.getParameterByName("param1").getValue());
        Assertions.assertEquals("value2", element.getParameterByName("param2").getValue());
    }

    @Test
    void testConstructor2() {
        final HeaderElement element = new BasicHeaderElement("name", "value");
        Assertions.assertEquals("name", element.getName());
        Assertions.assertEquals("value", element.getValue());
        Assertions.assertEquals(0, element.getParameters().length);
    }


    @Test
    void testInvalidName() {
        Assertions.assertThrows(NullPointerException.class, () -> new BasicHeaderElement(null, null, (NameValuePair[]) null));
    }

    @Test
    void testParamByName() {
        final String s = "name = value; param1 = value1; param2 = value2";
        final CharArrayBuffer buf = new CharArrayBuffer(64);
        buf.append(s);
        final ParserCursor cursor = new ParserCursor(0, buf.length());
        final HeaderElement element = BasicHeaderValueParser.INSTANCE.parseHeaderElement(buf, cursor);
        Assertions.assertEquals("value1", element.getParameterByName("param1").getValue());
        Assertions.assertEquals("value2", element.getParameterByName("param2").getValue());
        Assertions.assertNull(element.getParameterByName("param3"));
        Assertions.assertThrows(NullPointerException.class, () -> element.getParameterByName(null));
    }

    @Test
    void testToString() {
        final BasicHeaderElement element = new BasicHeaderElement("name", "value",
                new BasicNameValuePair("param1", "value1"),
                new BasicNameValuePair("param2", "value2"));
        Assertions.assertEquals("name=value; param1=value1; param2=value2", element.toString());
    }

}