}

    @Test
    public void test_escapeValue_parentheses() {
        assertEquals("\\28admin\\29", LdapUtil.escapeValue("(admin)"));
        assertEquals("\\28", LdapUtil.escapeValue("("));
        assertEquals("\\29", LdapUtil.escapeValue(")"));
        assertEquals("user\\28test\\29name", LdapUtil.escapeValue("user(test)name"));
    }

    @Test

        assertEquals("\\28", ldapManager.escapeLDAPSearchFilter("("));
        assertEquals("\\29", ldapManager.escapeLDAPSearchFilter(")"));
        assertEquals("\\28admin\\29", ldapManager.escapeLDAPSearchFilter("(admin)"));
        assertEquals("\\28objectClass=\\2a\\29", ldapManager.escapeLDAPSearchFilter("(objectClass=*)"));
    }

    @Test

  @SuppressSignatureCheck
  companion object {
    fun buildIfSupported(): SocketAdapter? = if (isSupported()) Android10SocketAdapter() else null

    @androidx.annotation.ChecksSdkIntAtLeast(api = 29)
    fun isSupported() = isAndroid && Build.VERSION.SDK_INT >= 29
  }

1. Add an Emulator named `pixel5`, if you don't already have one

```
$ sdkmanager --install "system-images;android-29;google_apis;x86"
$ echo "no" | avdmanager --verbose create avd --force --name "pixel5" --device "pixel" --package "system-images;android-29;google_apis;x86" --tag "google_apis" --abi "x86"
```

2. Run an Emulator using Android Studio or from command line.

```

        // Asterisk injection attempt
        assertEquals("cn=admin\\2a,dc=example,dc=com", fessConfig.getLdapSecurityPrincipal("admin*"));

        // Parentheses injection attempt
        assertEquals("cn=admin\\29\\28cn=\\2a,dc=example,dc=com", fessConfig.getLdapSecurityPrincipal("admin)(cn=*"));

        // Backslash
        assertEquals("cn=admin\\5ctest,dc=example,dc=com", fessConfig.getLdapSecurityPrincipal("admin\\test"));
    }

     * when the escaper is made compliant with RFC 2396, but that's a good thing (just change them
     * to assertUnescaped).
     */
    assertEscaping(e, "%21", '!');
    assertEscaping(e, "%28", '(');
    assertEscaping(e, "%29", ')');
    assertEscaping(e, "%7E", '~');
    assertEscaping(e, "%27", '\'');

    // Plus for spaces
    assertEscaping(e, "+", ' ');
    assertEscaping(e, "%2B", '+');

            case '*':
                sb.append("\\2a");
                break;
            case '(':
                sb.append("\\28");
                break;
            case ')':
                sb.append("\\29");
                break;
            case '\0':
                sb.append("\\00");
                break;
            default:
                sb.append(c);
            }
        }
        return sb.toString();

     * when the escaper is made compliant with RFC 2396, but that's a good thing (just change them
     * to assertUnescaped).
     */
    assertEscaping(e, "%21", '!');
    assertEscaping(e, "%28", '(');
    assertEscaping(e, "%29", ')');
    assertEscaping(e, "%7E", '~');
    assertEscaping(e, "%27", '\'');

    // Plus for spaces
    assertEscaping(e, "+", ' ');
    assertEscaping(e, "%2B", '+');

### Override the method { #override-the-method }

Now you can replace the `.openapi()` method with your new function.

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[29] *}

### Check it { #check-it }

Once you go to [http://127.0.0.1:8000/redoc](http://127.0.0.1:8000/redoc) you will see that you are using your custom logo (in this example, **FastAPI**'s logo):

結構只會產生一次，之後的請求都會使用相同的快取結果。

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[13:14,25:26] *}

### 覆寫方法 { #override-the-method }

現在你可以用新的函式取代 `.openapi()` 方法。

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[29] *}

### 檢查看看 { #check-it }

造訪 [http://127.0.0.1:8000/redoc](http://127.0.0.1:8000/redoc) 後，你會看到自訂的 logo（此例為 **FastAPI** 的 logo）：