val mainFiles = mainFiles()
    return mainFiles.map {
      val suffix = it.path.replace("${prefix}samples/guide/src/main/java/", "")
      suffix.replace("(.*)\\.java".toRegex()) { mr ->
        mr.groupValues[1].replace('/', '.')
      }.replace("(.*)\\.kt".toRegex()) { mr ->
        mr.groupValues[1].replace('/', '.') + "Kt"
      }
    }.sorted()
  }
}

@Disabled("Don't run by default")
@Tag("Slow")

	AssertAssociationCount(t, user2, "Manager", 1, "AfterAppend")

	// Replace
	company2 := Company{Name: "company-belongs-to-replace"}
	manager2 := GetUser("manager-belongs-to-replace", Config{})

	if err := DB.Model(&user2).Association("Company").Replace(&company2); err != nil {
		t.Fatalf("Error happened when replace Company, got %v", err)
	}

	if company2.ID == 0 {
		t.Fatalf("Company's ID should be created")

                childrenTracking.replace(delegate, newDelegate);
            }
            delegate = newDelegate;
        }
    }

    protected boolean replace(Object oldDelegate, Object newDelegate) {
        return false;
    }

    @FunctionalInterface
    protected interface ChildrenTracking {
        boolean replace(Object oldDelegate, Object newDelegate);
    }

    }
  }

  @Test
  fun singlePart() {
    val expected =
      """
      |--123
      |
      |Hello, World!
      |--123--
      |
      """.trimMargin().replace("\n", "\r\n")
    val body =
      MultipartBody.Builder("123")
        .addPart("Hello, World!".toRequestBody(null))
        .build()
    assertThat(body.boundary).isEqualTo("123")

                childrenTracking.replace(delegate, newDelegate);
            }
            delegate = newDelegate;
        }
    }

    protected boolean replace(Object oldDelegate, Object newDelegate) {
        return false;
    }

    @FunctionalInterface
    protected interface ChildrenTracking {
        boolean replace(Object oldDelegate, Object newDelegate);
    }

                childrenTracking.replace(delegate, newDelegate);
            }
            delegate = newDelegate;
        }
    }

    protected boolean replace(Object oldDelegate, Object newDelegate) {
        return false;
    }

    @FunctionalInterface
    protected interface ChildrenTracking {
        boolean replace(Object oldDelegate, Object newDelegate);
    }

        return stripInvalidXMLCharacters(//
                value//
                        .replace("&", "&") //
                        .replace("<", "&lt;")//
                        .replace(">", "&gt;")//
                        .replace("\"", "&quot;")//
                        .replace("\'", "&apos;")//
        );
    }

    public static String stripInvalidXMLCharacters(final String in) {

	}

	user.Account = account
	CheckUser(t, user2, user)

	AssertAssociationCount(t, user, "Account", 1, "AfterAppend")

	// Replace
	account2 := Account{Number: "account-has-one-replace"}

	if err := DB.Model(&user2).Association("Account").Replace(&account2); err != nil {
		t.Fatalf("Error happened when append Account, got %v", err)
	}

	if account2.ID == 0 {
		t.Fatalf("account2's ID should be created")

     * identifier are added, then the value of the replace argument determines the behaviour.
     *
     * If replace is false then any existing repository with the same Id will remain in use. If replace
     * is true the new repository replaces the original.
     *
     * @param repository The repository to add to the internal search chain, must not be {@code null}.

    }

    @Override
    public boolean replace(final K key, final V oldValue, final V newValue) {
        if (parent.replace(key, oldValue, newValue)) {
            return true;
        }
        return parent.replace(key, oldValue, newValue);
    }

    @Override
    public V replace(final K key, final V value) {
        // use original key
        return parent.replace(key, value);
    }

    @Override