}

  /*
   * Tests for Predicates.isNull()
   */

  public void testIsNull_apply() {
    Predicate<@Nullable Integer> isNull = Predicates.isNull();
    assertTrue(isNull.apply(null));
    assertFalse(isNull.apply(1));
  }

  public void testIsNull_equality() {
    new EqualsTester()
        .addEqualityGroup(Predicates.isNull(), Predicates.isNull())
        .addEqualityGroup(Predicates.notNull())

        // Arrange
        when(tree.send(isNull())).thenThrow(new CIFSException("null request"));

        // Act
        CIFSException ex = assertThrows(CIFSException.class, () -> tree.send(null));

        // Assert
        assertEquals("null request", ex.getMessage());
        verify(tree).send((Request<CommonServerMessageBlockResponse>) isNull());
    }

    @Test

    assertFalse(testTable.containsValue(""));
  }

  public void testGet() {
    assertEquals("blah", testTable.get('a', 1));
    assertThat(testTable.get('a', 2)).isNull();
    assertThat(testTable.get('A', 1)).isNull();
    assertThat(testTable.get('A', 2)).isNull();
  }

  public void testIsEmpty() {
    assertFalse(testTable.isEmpty());
  }

  public void testSize() {
    assertEquals(1, testTable.size());

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

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

    assertFalse(equalTo1.apply(null));
    Predicate<@Nullable Object> isNull = Equivalence.equals().equivalentTo(null);
    assertFalse(isNull.apply("1"));
    assertFalse(isNull.apply("2"));
    assertTrue(isNull.apply(null));

    new EqualsTester()
        .addEqualityGroup(equalTo1, Equivalence.equals().equivalentTo("1"))
        .addEqualityGroup(isNull)
        .addEqualityGroup(Equivalence.identity().equivalentTo("1"))

 * limitations under the License.
 */
package okhttp3.internal.platform

import assertk.assertThat
import assertk.assertions.isEqualTo
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import javax.net.ssl.SSLSocket
import okhttp3.DelegatingSSLSocket
import okhttp3.internal.platform.Jdk9Platform.Companion.buildIfSupported
import okhttp3.testing.PlatformRule
import org.junit.jupiter.api.Test

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

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

    assertThat(ArbitraryInstances.get(WithGenericConstant.class)).isNull();
  }

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

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

  public void testGet_nonPublicConstantNotUsed() {

 * limitations under the License.
 */
package okhttp3

import assertk.assertThat
import assertk.assertions.containsExactly
import assertk.assertions.isEqualTo
import assertk.assertions.isNull
import java.time.Instant
import java.util.Date
import okhttp3.Headers.Companion.headersOf
import org.junit.jupiter.api.Test

class HeadersKotlinTest {
  @Test fun getOperator() {

    assertEquals(0.0f, Defaults.defaultValue(float.class).floatValue());
    assertThat(Defaults.defaultValue(double.class).doubleValue()).isEqualTo(0.0d);
    assertThat(Defaults.defaultValue(void.class)).isNull();
    assertThat(Defaults.defaultValue(String.class)).isNull();
  }