public T or(Supplier<? extends T> supplier) {
    checkNotNull(supplier);
    return reference;
  }

  @Override
  public T orNull() {
    return reference;
  }

  @Override
  public Set<T> asSet() {
    return Collections.singleton(reference);
  }

  @Override
  public <V> Optional<V> transform(Function<? super T, V> function) {
    return new Present<>(
        checkNotNull(

async def read_users(user_id: int):
    pass


client = TestClient(app)


def test_read_users():
    response = client.get("/users/42")
    assert response.status_code == 200, response.text


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.security;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import org.codelibs.core.exception.EmptyArgumentException;
import org.codelibs.core.exception.NoSuchAlgorithmRuntimeException;
import org.junit.Test;

/**

import org.junit.Test;
import org.junit.runner.RunWith;

import java.io.IOException;
import java.security.cert.Certificate;
import java.security.cert.X509Certificate;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

/**
 * Simple test adaptable to show a failure in older versions of OkHttp
 * or Android SDKs.
 */
@RunWith(AndroidJUnit4.class)
public class IssueReproductionTest {

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

package okhttp3.internal.connection

import assertk.assertThat
import assertk.assertions.isEqualTo
import java.net.Inet4Address
import java.net.Inet6Address
import org.junit.jupiter.api.Test

@Suppress("ktlint:standard:property-naming")
class InetAddressOrderTest {

    response = client.get("/override1?level1=foo")
    assert response.json() == "foo"
    assert response.headers["content-type"] == "application/x-level-1"
    assert "x-level0" in response.headers
    assert "x-level1" in response.headers
    assert "x-level2" not in response.headers
    assert "x-level3" not in response.headers
    assert "x-level4" not in response.headers
    assert "x-level5" not in response.headers

 * governing permissions and limitations under the License.
 */
package org.codelibs.curl.io;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import java.io.File;
import java.io.IOException;

import org.codelibs.curl.Curl;
import org.junit.Test;

        // We verify the effects of the super constructor by checking the fields of the created object.

        // Assert object_attributes fields
        assertNotNull(msrpcLsarOpenPolicy2.object_attributes);
        assertEquals(24, msrpcLsarOpenPolicy2.object_attributes.length);

        // Assert security_quality_of_service fields
        assertNotNull(msrpcLsarOpenPolicy2.object_attributes.security_quality_of_service);

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.suggest.request.suggest;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.ArrayList;

import org.junit.Test;

public class SuggestRequestTest {
    @Test
    public void test_isHiraganaQuery() throws Exception {

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

import assertk.assertThat
import assertk.assertions.isEqualTo
import java.io.IOException
import okhttp3.Protocol.Companion.get
import org.junit.jupiter.api.Assertions.assertThrows
import org.junit.jupiter.api.Test

class ProtocolTest {
  @Test