func testCreatingAndFetchingContact()

in EncryptionTests/EncryptionTests.swift [79:112]
28 lines of code
3 McCabe index (conditional complexity)

    func testCreatingAndFetchingContact() {
        let finishExpectation = expectation(description: "Expect add and fetch operations to complete")

        viewModel.addContact(name: "TestContact-\(UUID().uuidString)",
                             phoneNumber: "555-123-4567") { [weak self] result in
            switch result {
            case .failure(let error):
                XCTFail("Failed to create new contact: \(error)")
                finishExpectation.fulfill()
            case .success(let contact):
                guard let contact = contact else {
                    XCTFail("Contact returned from addContact was nil.")
                    finishExpectation.fulfill()
                    return
                }

                self?.contactsToDelete.append(contact)

                self?.fetchContactsOrFail { contacts in
                    finishExpectation.fulfill()

                    guard let foundContact = contacts.first(where: { $0.id == contact.id }) else {
                        XCTFail("Created contact not found in subsequent fetch.")
                        return
                    }

                    XCTAssert(foundContact.phoneNumber == contact.phoneNumber,
                              "Fetched Contact number does not match created Contact number.")
                }
            }
        }

        waitForExpectations(timeout: 10)
    }