### Locks

We have 3 different things that we synchronize on.

#### Http2Connection

This lock guards internal state of each connection. This lock is never held for blocking operations. That means that we acquire the lock, read or write a few fields and release the lock. No I/O and no application-layer callbacks.

#### Http2Stream

    }

    def usesSetterToLocateOverriddenPropertyWhenGetterDoesNotOverrideAnything() {
        MethodMetaData getter = Mock()
        MethodMetaData setter = Mock()
        MethodMetaData overriddenSetter = Mock()
        ClassMetaData overriddenClass = Mock()
        PropertyMetaData overriddenProperty = Mock()
        propertyMetaData.getter = getter
        propertyMetaData.setter = setter

        when:

    // 'swallowException' when the mock does not throw an exception.
    setupCloseable(false);
    doClose(mockCloseable, false, false);

    setupCloseable(false);
    doClose(mockCloseable, true, false);
  }

  public void testClose_closeableWithEatenException() throws IOException {
    // make sure that no exception is thrown if 'swallowException' is true
    // when the mock does throw an exception.
    setupCloseable(true);

	c.mu.Lock()
	bucketIdx := c.nextCleanupBucket
	timeToExpire := time.Until(c.buckets[bucketIdx].newestEntry)
	// wait for newest entry to expire before cleanup without holding lock
	if timeToExpire > 0 {
		c.mu.Unlock()
		time.Sleep(timeToExpire)
		c.mu.Lock()
	}
	for _, ent := range c.buckets[bucketIdx].entries {
		c.removeElement(ent)
	}
	c.nextCleanupBucket = (c.nextCleanupBucket + 1) % numBuckets

// Submitted by Zulfais <******@****.***>
co.bn

// Postman, Inc : https://postman.com
// Submitted by Rahul Dhawan <******@****.***>
postman-echo.com
pstmn.io
mock.pstmn.io
httpbin.org

// prequalifyme.today : https://prequalifyme.today
// Submitted by DeepakTiwari ******@****.***
prequalifyme.today

// prgmr.com : https://prgmr.com/

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

/**
 * Utility class for creating test fixtures and reducing code duplication in tests.
 */
public final class TestUtils {

    private TestUtils() {
        // Utility class
    }

    /**
     * Creates a mock UpgradeContext with default settings.
     *
     * @return a mock UpgradeContext
     */

	// ErrIsNotEmpty is returned when the buffer is not empty and not blocking.
	ErrIsNotEmpty = errors.New("ringbuffer is not empty")

	// ErrAcquireLock is returned when the lock is not acquired on Try operations.
	ErrAcquireLock = errors.New("unable to acquire lock")

	// ErrWriteOnClosed is returned when write on a closed ringbuffer.
	ErrWriteOnClosed = errors.New("write on closed ringbuffer")
)

    if sys.modules.get(MOD_NAME):
        del sys.modules[MOD_NAME]
    with unittest.mock.patch("uvicorn.run") as uvicorn_run_mock:
        runpy.run_module(MOD_NAME, run_name="__main__")

    uvicorn_run_mock.assert_called_once_with(
        unittest.mock.ANY, host="0.0.0.0", port=8000
    )


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")

    }

    def locatesOverriddenMethodInAncestorClass() {
        ClassMetaData superClassMetaData = Mock()
        ClassMetaData ancestorClassMetaData = Mock()
        MethodMetaData overriddenMethod = Mock()

        when:
        def m = method.overriddenMethod

        then:
        m == overriddenMethod
        _ * owner.superClass >> superClassMetaData

	}
}

// Test lock race
func TestNSLockRace(t *testing.T) {
	t.Skip("long test skip it")

	ctx := t.Context()

	for i := range 10000 {
		nsLk := newNSLock(false)

		// lk1; ref=1
		if !nsLk.lock(ctx, "volume", "path", "source", "opsID", false, time.Second) {
			t.Fatal("failed to acquire lock")
		}

		// lk2
		lk2ch := make(chan struct{})
		go func() {