additional context for the C file.  Here it is just a single #include
but it could contain arbitrary C definitions to be imported and used.

Cgo recognizes any use of a qualified identifier C.xxx and uses gcc to
find the definition of xxx.  If xxx is a type, cgo replaces C.xxx with
a Go translation.  C arithmetic types translate to precisely-sized Go
arithmetic types.  A C struct translates to a Go struct, field by

        getMockRequest().setLocale(Locale.JAPANESE);
        assertEquals("https://fess.codelibs.org/ja/98.76/admin/xxx-guide.html", systemHelper.getHelpLink("xxx"));
        getMockRequest().setLocale(Locale.ITALIAN);
        assertEquals("https://fess.codelibs.org/98.76/admin/xxx-guide.html", systemHelper.getHelpLink("xxx"));
        getMockRequest().setLocale(null);

class SettingsTest {

    @Test
    void testSetLocalRepository() {
        Settings s = Settings.newInstance();

        s = s.withLocalRepository("xxx");
        assertEquals("xxx", s.getLocalRepository());

        s = s.withLocalRepository("yyy");
        assertEquals("yyy", s.getLocalRepository());

        s = s.withLocalRepository(null);

          # retainVersions: 5 # keep the latest 5 versions of the object including delete markers.

  notify:
    endpoint: https://notify.endpoint # notification endpoint to receive job completion status
    token: Bearer xxxxx # optional authentication token for the notification endpoint
  
  retry:
    attempts: 10 # number of retries for the job before giving up
    delay: 500ms # least amount of delay between each retry
`

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.test.net.protocol.xxx5;

public class TestHandler {

        map.put("ccc.ddd", "444");
        return new ParamMap<>(map);
    }

    @Test
    public void test_snake_get() {
        Map<Object, Object> paramMap = createSnakeMap();

        assertNull(paramMap.get("xxx"));
        assertEquals("111", paramMap.get("aaa"));
        assertEquals("222", paramMap.get("aaa_bbb"));
        assertEquals("222", paramMap.get("aaaBbb"));
        assertEquals("222", paramMap.get("AaaBbb"));

 */
public abstract class TestUtil {

    /**
     * 実際の値が期待する{@literal clazz}と等しいかを検証する{@link Matcher}を返します。
     *
     * <pre>assertThat(clazz, is(Xxx.class));</pre>
     * <p>
     * と書くと{@link CoreMatchers#is(Class)}が適用されて{@literal clazz}が {@literal Xxx}
     * のインスタンスかを検証されてしまうのでこれが必要。
     *
     * @param clazz
     *            期待するクラス
     * @return クラスをチェックする{@link Matcher}
     */

        exception.expect(IllegalKeyOfBeanMapException.class);
        exception.expectMessage(is("[ECL0016]key[xxx] is not included in this BeanMap : {aaa=1, bbb=2}."));
        final BeanMap map = new BeanMap();
        map.put("aaa", 1);
        map.put("bbb", 2);
        map.get("xxx");
    }

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.test.net.protocol.xxx1;

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;

public class Handler extends URLStreamHandler {

        assertThrows(IllegalArgumentException.class, () -> cli.calculateDegreeOfConcurrency("CXXX"));
        assertThrows(IllegalArgumentException.class, () -> cli.calculateDegreeOfConcurrency("XXXC"));

        int cpus = Runtime.getRuntime().availableProcessors();
        assertEquals((int) (cpus * 2.2), cli.calculateDegreeOfConcurrency("2.2C"));