/// tip

我们稍后会讨论 `@lru_cache`。

目前，您可以将 `get_settings()` 视为普通函数。

///

然后，我们可以将其作为依赖项从“路径操作函数”中引入，并在需要时使用它。

{* ../../docs_src/settings/app02_an_py39/main.py hl[17,19:21] *}

### 设置和测试

然后，在测试期间，通过创建 `get_settings` 的依赖项覆盖，很容易提供一个不同的设置对象：

{* ../../docs_src/settings/app02/test_main.py hl[9:10,13,21] *}

在依赖项覆盖中，我们在创建新的 `Settings` 对象时为 `admin_email` 设置了一个新值，然后返回该新对象。

	if z.VariableLabels != nil {
		for za0003, za0004 := range z.VariableLabels {
			_ = za0004
			s += msgp.StringPrefixSize + len(za0003) + msgp.StringPrefixSize + len(za0004)
		}
	}
	s += 21 + msgp.StringPrefixSize + len(z.HistogramBucketLabel) + 10 + msgp.MapHeaderSize
	if z.Histogram != nil {
		for za0005, za0006 := range z.Histogram {
			_ = za0006
			s += msgp.StringPrefixSize + len(za0005) + msgp.Uint64Size

}

// Check if unformatted disks are equal to 50%+1 of all the drives.
func quorumUnformattedDisks(errs []error) bool {
	return countErrs(errs, errUnformattedDisk) >= (len(errs)/2)+1
}

// loadFormatErasureAll - load all format config from all input disks in parallel.
func loadFormatErasureAll(storageDisks []StorageAPI, heal bool) ([]*formatErasureV3, []error) {
	// Initialize list of errors.

    assertJournalEquals("DIRTY k1") // DIRTY must always be flushed.
    creator.setString(0, "AB")
    creator.setString(1, "C")
    creator.commit()
    cache.close()
    assertJournalEquals("DIRTY k1", "CLEAN k1 2 1")
  }

  @Test
  fun revertedNewFileIsRemoveInJournal() {
    val creator = cache.edit("k1")!!
    assertJournalEquals("DIRTY k1") // DIRTY must always be flushed.
    creator.setString(0, "AB")

    assertThat(Booleans.ensureCapacity(ARRAY_FALSE, 1, 1)).isSameInstanceAs(ARRAY_FALSE);
    assertThat(Booleans.ensureCapacity(new boolean[] {true}, 2, 1))
        .isEqualTo(new boolean[] {true, false, false});
  }

  public void testEnsureCapacity_fail() {
    assertThrows(IllegalArgumentException.class, () -> Booleans.ensureCapacity(ARRAY_FALSE, -1, 1));

func (z *ReplicationState) Msgsize() (s int) {
	s = 1 + 17 + msgp.TimeSize + 14 + z.ReplicaStatus.Msgsize() + 13 + msgp.BoolSize + 21 + msgp.TimeSize + 26 + msgp.StringPrefixSize + len(z.ReplicationStatusInternal) + 27 + msgp.StringPrefixSize + len(z.VersionPurgeStatusInternal) + 21 + msgp.StringPrefixSize + len(z.ReplicateDecisionStr) + 8 + msgp.MapHeaderSize
	if z.Targets != nil {
		for za0001, za0002 := range z.Targets {

- login: chrisK824
  count: 22
  avatarUrl: https://avatars.githubusercontent.com/u/79946379?u=03d85b22d696a58a9603e55fbbbe2de6b0f4face&v=4
  url: https://github.com/chrisK824
- login: rafsaf
  count: 21
  avatarUrl: https://avatars.githubusercontent.com/u/51059348?u=5fe59a56e1f2f9ccd8005d71752a8276f133ae1a&v=4
  url: https://github.com/rafsaf
- login: nsidnev
  count: 20

		// With valid md5sum and sha256.
		20: {bucketName: bucket, objName: object, inputData: data, inputMeta: md5Header(data), inputSHA256: getSHA256Hash(data), inputDataSize: int64(len(data)), expectedMd5: getMD5Hash(data)},
		21: {bucketName: bucket, objName: object, inputData: nilBytes, inputMeta: md5Header(nilBytes), inputSHA256: getSHA256Hash(nilBytes), inputDataSize: int64(len(nilBytes)), expectedMd5: getMD5Hash(nilBytes)},

  private static final String E11_A = "1-1a";
  private static final String E12 = "1-2";
  private static final String E12_A = "1-2a";
  private static final String E12_B = "1-2b";
  private static final String E21 = "2-1";
  private static final String E13 = "1-3";
  private static final String E31 = "3-1";
  private static final String E34 = "3-4";
  private static final String E44 = "4-4";
  private static final int NODE_COUNT = 20;

   */
  @get:JvmName("queryParameterNames")
  val queryParameterNames: Set<String>
    get() {
      if (queryNamesAndValues == null) return emptySet()
      val result = LinkedHashSet<String>(queryNamesAndValues.size / 2, 1.0F)
      for (i in 0 until queryNamesAndValues.size step 2) {
        result.add(queryNamesAndValues[i]!!)
      }
      return result.unmodifiable()
    }

  /**