assertEquals((Character) 'b', table.get("bar", 1));
    assertEquals((Character) 'c', table.get("foo", 3));
    assertNull(table.get("foo", 2));
    assertNull(table.get("bar", 3));
    assertNull(table.get("cat", 1));
    assertNull(table.get("foo", null));
    assertNull(table.get(null, 1));
    assertNull(table.get(null, null));
  }

  public void testIsEmpty() {
    assertTrue(table.isEmpty());

import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;

/**
 * Verifies scope of root project is preserved regardless of parent dependency management.
 *
 * @see <a href="https://issues.apache.org/jira/browse/MNG-2919">MNG-2919</a>
 */
@Deprecated

 */
@ElementTypesAreNonnullByDefault
@GwtCompatible(emulated = true)
public final class OptionalTest extends TestCase {
  @SuppressWarnings("NullOptional")
  public void testToJavaUtil_static() {
    assertNull(Optional.toJavaUtil(null));
    assertEquals(java.util.Optional.empty(), Optional.toJavaUtil(Optional.absent()));
    assertEquals(java.util.Optional.of("abc"), Optional.toJavaUtil(Optional.of("abc")));
  }

  }

  public void testGet_constantWithGenericsNotUsed() {
    assertNull(ArbitraryInstances.get(WithGenericConstant.class));
  }

  public void testGet_nullConstant() {
    assertNull(ArbitraryInstances.get(WithNullConstant.class));
  }

  public void testGet_constantTypeDoesNotMatch() {
    assertNull(ArbitraryInstances.get(ParentClassHasConstant.class));
  }

        assertSame(entry.getValue(), cache.asMap().put(entry.getKey(), newValue));
        // don't let the new entry get GCed
        warmed.add(entryOf(entry.getKey(), newValue));
        Object newKey = new Object();
        assertNull(cache.asMap().put(newKey, entry.getValue()));
        // this getUnchecked() call shouldn't be a cache miss; verified below
        assertEquals(newValue, cache.getUnchecked(entry.getKey()));

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import kotlin.test.Test
import kotlin.test.assertEquals
import kotlin.test.assertNull
import okhttp3.MediaType.Companion.toMediaTypeOrNull

/**
 * Test MediaType API and parsing.
 *
 * This test includes tests from [Guava's](https://code.google.com/p/guava-libraries/)
 * MediaTypeTest.
 */

    }

    public void test_normalizeLang() {
        String value = null;
        assertNull(systemHelper.normalizeLang(value));

        value = "";
        assertNull(systemHelper.normalizeLang(value));

        value = "_ja";
        assertNull(systemHelper.normalizeLang(value));

        value = "ja";
        assertEquals("ja", systemHelper.normalizeLang(value));

import org.codelibs.fess.unit.UnitFessTestCase;

public class ResourceUtilTest extends UnitFessTestCase {
    public void test_resolve() {
        String value;

        value = null;
        assertNull(ResourceUtil.resolve(value));

        value = "";
        assertEquals("", ResourceUtil.resolve(value));

        value = "a";
        assertEquals(value, ResourceUtil.resolve(value));

        value = "${a}";

import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertNotNull;
import static junit.framework.Assert.assertNull;
import static junit.framework.Assert.assertSame;

import com.google.common.testing.TearDown;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

        dataService.delete("id1");

        assertNull(dataService.getAccessResult("id1", "http://www.id1.com/"));
        assertNotNull(dataService.getAccessResult("id2", "http://www.id2.com/"));

        dataService.store(accessResult1);
        assertNotNull(dataService.getAccessResult("id1", "http://www.id1.com/"));

        dataService.deleteAll();

        assertNull(dataService.getAccessResult("id1", "http://www.id1.com/"));