s := NewScanner(strings.NewReader(text + "\n"))
	s.Buffer(make([]byte, 100), 3*MaxScanTokenSize)
	for s.Scan() {
		token := s.Text()
		if token != text {
			t.Errorf("scan got incorrect token of length %d", len(token))
		}
	}
	if s.Err() != nil {
		t.Fatal("after scan:", s.Err())
	}
}

// negativeEOFReader returns an invalid -1 at the end, as though it

/// tip

`OAuth2PasswordRequestForm` 這個依賴類別的實例不會有以空白分隔長字串的 `scope` 屬性，而是會有一個 `scopes` 屬性，裡面是各個 scope 的實際字串清單。

本示例沒有使用 `scopes`，但如果你需要，功能已經在那裡了。

///

現在，從（假的）資料庫裡用表單欄位的 `username` 取得使用者資料。

如果沒有該使用者，就回傳「Incorrect username or password」的錯誤。

我們用 `HTTPException` 這個例外來回傳錯誤：

{* ../../docs_src/security/tutorial003_an_py310.py hl[3,79:81] *}

### 檢查密碼 { #check-the-password }

這時我們已經有來自資料庫的使用者資料，但還沒檢查密碼。

        return repositoryContainers
                .map(container -> fixRepositoryExpressions(container, pomDocument, context))
                .reduce(false, Boolean::logicalOr);
    }

    /**
     * Fixes incorrect parent relative paths.
     */
    private boolean fixIncorrectParentRelativePaths(
            Document pomDocument, Path pomPath, Map<Path, Document> pomMap, UpgradeContext context) {

	// Gloss over this by reading headers until we encounter
	// a bad one, and then only report an ErrFormat or UnexpectedEOF if
	// the file count modulo 65536 is incorrect.
	for {
		f := &File{zip: r, zipr: rdr}
		err = readDirectoryHeader(f, buf)
		if err == ErrFormat || err == io.ErrUnexpectedEOF {
			break
		}
		if err != nil {
			return err
		}

	}

	// Since the list of signed headers value contained `expect`, the default value of `100-continue` will be added to extracted signed headers.
	if extractedExpect != expectedExpect {
		t.Errorf("expect header incorrect value: expected `%s`, got `%s`", expectedExpect, extractedExpect)
	}

	// case where the headers don't contain the one of the signed header in the signed headers list.

		statusCode: 400,
		cause:      err,
	}
}

func errParseCastArity(err error) *s3Error {
	return &s3Error{
		code:       "ParseCastArity",
		message:    "The SQL expression CAST has incorrect arity.",
		statusCode: 400,
		cause:      err,
	}
}

func errParseEmptySelect(err error) *s3Error {
	return &s3Error{
		code:       "ParseEmptySelect",

この例では `scopes` は使いませんが、必要ならその機能が利用できます。

///

次に、フォームフィールドの `username` を使って（疑似の）データベースからユーザーデータを取得します。

そのユーザーが存在しない場合は、「Incorrect username or password」というエラーを返します。

エラーには `HTTPException` 例外を使います:

{* ../../docs_src/security/tutorial003_an_py310.py hl[3,79:81] *}

### パスワードのチェック { #check-the-password }

			12,
			true,
		},
		{
			[]string{"http://host{0...5}/data{1...28}"},
			[]uint64{168},
			[][]uint64{{12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12}},
			12,
			true,
		},
		// Incorrect custom set drive count.
		{
			[]string{"http://host{0...5}/data{1...28}"},
			[]uint64{168},
			nil,
			10,
			false,
		},
		// Failure not divisible number of disks.
		{

        assertFalse(greater.equals(t));
      }
    }
  }

  /**
   * Returns a collection that simulates concurrent modification by having its size method return
   * incorrect values. This is useful for testing methods that must treat the return value from
   * size() as a hint only.
   *
   * @param delta the difference between the true size of the collection and the values returned by

func (r Config) GetUserIDClaim(cfgName string) string {
	pCfg, ok := r.ProviderCfgs[cfgName]
	if ok {
		if pCfg.UserIDClaim != "" {
			return pCfg.UserIDClaim
		}
		return "sub"
	}
	return "" // an incorrect config should be handled outside this function