Set<Integer> nodes = graph.nodes();
    assertThrows(UnsupportedOperationException.class, () -> nodes.add(N2));
    addNode(N1);
    assertThat(graph.nodes()).containsExactlyElementsIn(nodes);
  }

  @Override
  @Test
  public void adjacentNodes_checkReturnedSetMutability() {
    assume().that(graphIsMutable()).isTrue();

    addNode(N1);
    Set<Integer> adjacentNodes = graph.adjacentNodes(N1);

{!> ../../docs_src/body_nested_models/tutorial002.py!}
```

////

## Set-Typen

Aber dann denken wir darüber nach und stellen fest, dass sich die Tags nicht wiederholen sollen, es sollen eindeutige Strings sein.

Python hat einen Datentyp speziell für Mengen eindeutiger Dinge: das <abbr title="Menge">`set`</abbr>.

Deklarieren wir also `tags` als Set von Strings.

//// tab | Python 3.10+

```Python hl_lines="12"

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.es.log.allcommon;

import java.io.Serializable;
import java.util.Map;
import java.util.Set;

import org.dbflute.Entity;
import org.dbflute.FunCustodial;
import org.dbflute.dbmeta.accessory.EntityModifiedProperties;
import org.dbflute.dbmeta.accessory.EntityUniqueDrivenProperties;

    addCallback(f, callback, directExecutor());
    f.set("foo");
  }

  public void testExecutorSuccess() {
    CountingSameThreadExecutor ex = new CountingSameThreadExecutor();
    SettableFuture<String> f = SettableFuture.create();
    MockCallback callback = new MockCallback("foo");
    Futures.addCallback(f, callback, ex);
    f.set("foo");
    assertEquals(1, ex.runCount);
  }

  // Error cases

* `frozenset`:
    * 在请求和响应中，作为 `set` 对待：
        * 在请求中，列表将被读取，消除重复，并将其转换为一个 `set`。
        * 在响应中 `set` 将被转换为 `list` 。
        * 产生的模式将指定那些 `set` 的值是唯一的 (使用 JSON 模式的 `uniqueItems`)。
* `bytes`:
    * 标准的 Python `bytes`。
    * 在请求和响应中被当作 `str` 处理。
    * 生成的模式将指定这个 `str` 是 `binary` "格式"。
* `Decimal`:

	if err != nil {
		t.Errorf("MinIO %s: Failed to create HTTP request for testing the response when object Layer is set to `nil`.", instanceType)
	}
	// Executes the object layer set to `nil` test.
	// `ExecObjectLayerAPINilTest` manages the operation.
	ExecObjectLayerAPINilTest(t, nilBucket, "", instanceType, apiRouter, nilReq)
}

			return err
		}
	}

	// Prevent parallel erasure set healing
	locker := z.NewNSLock(minioMetaBucket, fmt.Sprintf("new-drive-healing/%d/%d", poolIdx, setIdx))
	lkctx, err := locker.GetLock(ctx, newDiskHealingTimeout)
	if err != nil {
		return fmt.Errorf("Healing of drive '%v' on %s pool, belonging to %s erasure set already in progress: %w",
			disk, humanize.Ordinal(poolIdx+1), humanize.Ordinal(setIdx+1), err)

#!/usr/bin/env bash

set -e
set -x

bash scripts/test.sh ${@}
coverage combine
coverage report

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.testing.NullPointerTester;
import java.util.Set;
import junit.framework.TestCase;

/**
 * Unit test for {@link Primitives}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible(emulated = true)
public class PrimitivesTest extends TestCase {

    assertThat(cacheControl.mustRevalidate).isFalse()
  }

  @Test
  @Throws(Exception::class)
  fun parseEmpty() {
    val cacheControl =
      parse(
        Headers.Builder().set("Cache-Control", "").build(),
      )
    assertThat(cacheControl.toString()).isEqualTo("")
    assertThat(cacheControl.noCache).isFalse()
    assertThat(cacheControl.noStore).isFalse()