var shortRandom = func(limit int64) io.Reader { return io.LimitReader(rand.Reader, limit) }

func recoverTest(i int, shouldPass bool, t *testing.T) {
	if err := recover(); err == nil && !shouldPass {
		t.Errorf("Test %d should fail but passed successfully", i)
	} else if err != nil && shouldPass {
		t.Errorf("Test %d should pass but failed: %v", i, err)
	}
}

var generateKeyTests = []struct {
	ExtKey     [32]byte
	Random     io.Reader

        };
    waiter.start();
    awaitTimedWaiting(waiter);
    service.shutdown();
    Uninterruptibles.joinUninterruptibly(waiter, 10, SECONDS);
    if (waiter.isAlive()) {
      waiter.interrupt();
      fail("awaitTermination failed to trigger after shutdown()");
    }
  }

  /** Wait for the given thread to reach the {@link State#TIMED_WAITING} thread state. */

import static com.google.common.escape.testing.EscaperAsserts.assertUnicodeEscaping;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.fail;

import com.google.common.annotations.GwtCompatible;
import com.google.common.escape.UnicodeEscaper;

/**
 * Testing utilities for {@link UrlEscapers} and {@link LegacyUrlEscapersTest}.
 *

import static com.google.common.base.Preconditions.checkNotNull;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.concurrent.TimeUnit.NANOSECONDS;
import static junit.framework.Assert.fail;

import com.google.common.testing.TearDown;
import com.google.common.testing.TearDownAccepter;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;

/**

            pytest.fail(
                "did not raise WebSocketDisconnect on __enter__"
            )  # pragma: no cover


@needs_py310
def test_websocket_invalid_data(app: FastAPI):
    client = TestClient(app)
    with pytest.raises(WebSocketDisconnect):
        with client.websocket_connect("/items/foo/ws?q=bar&token=some-token"):
            pytest.fail(

 * avoiding these options entirely, this class allows a connection to be attempted with modern
 * options and then retried without them should the attempt fail.
 *
 * ## Connection Reuse
 *
 * Each connection can carry a varying number of streams, depending on the underlying protocol being

    assertDone(future);
    assertThat(future.isCancelled()).isFalse();

    try {
      getDone(future);
      fail();
    } catch (ExecutionException e) {
      assertThat(e.getCause()).isSameInstanceAs(expectedException);
    }

    try {
      getDoneFromTimeoutOverload(future);
      fail();
    } catch (ExecutionException e) {
      assertThat(e).hasCauseThat().isSameInstanceAs(expectedException);
    }

* Chuyển đổi tự động các JSON object đến và JSON object đi.
* Tài liệu hóa mọi thứ với OpenAPI, tài liệu đó có thể được sử dụng bởi:

    * Các hệ thống tài liệu có thể tương tác.
    * Hệ thống sinh code tự động, cho nhiều ngôn ngữ lập trình.
* Cung cấp trực tiếp 2 giao diện web cho tài liệu tương tác

---

    try {
      unmod.add(4);
      fail("UnsupportedOperationException expected");
    } catch (UnsupportedOperationException expected) {
    }
    try {
      unmod.remove(4);
      fail("UnsupportedOperationException expected");
    } catch (UnsupportedOperationException expected) {
    }
    try {
      unmod.addAll(singleton(4));
      fail("UnsupportedOperationException expected");

			t.Errorf("Test %d: %s: Expected to fail with error \"%s\", but passed instead.", i, instanceType, testCase.expectedError.Error())
			continue
		}
		// Failed as expected, but does it fail for the expected reason.
		if actualErr != nil && actualErr != testCase.expectedError {