my-files-sample/Libraries/Tests/APIServiceTests/Cases/Actors/APIService+GetUserTests.swift

//
//  APIService+GetUserTests.swift
//  APIServiceTests
//
//  Created by Javier Cicchelli on 04/12/2022.
//  Copyright © 2022 Röck+Cöde. All rights reserved.
//

import Foundation
import XCTest

@testable import APIService

final class APIServiceGetUserTests: XCTestCase {
    
    // MARK: Properties
    
    private let dateFormatter = DateFormatter.iso8601
    private let sessionConfiguration = {
        let configuration = URLSessionConfiguration.default
        
        configuration.protocolClasses = [MockURLProtocol.self]
        
        return configuration
    }()
    
    private let url = URL(string: "http://163.172.147.216:8080/me")!
    
    private var service: APIService!
    private var data: Data!
    private var result: Me!
    
    // MARK: Setup
    
    override func setUp() async throws {
        service = .init(configuration: sessionConfiguration)
    }
    
    override func tearDown() async throws {
        service = nil
    }

    // MARK: Test cases
    
    func test_withRightCredentials() async throws {
        // GIVEN
        data = "{\"firstName\":\"Noel\",\"lastName\":\"Flantier\",\"rootItem\":{\"id\":\"4b8e41fd4a6a89712f15bbf102421b9338cfab11\",\"parentId\":\"\",\"name\":\"dossierTest\",\"isDir\":true,\"modificationDate\":\"2021-11-29T10:57:13Z\"}}\n".data(using: .utf8)

        MockURLProtocol.mockData[url] = MockURLResponse(
            status: .ok,
            headers: [.Header.Keys.contentType: .Header.Values.contentTypeJSON],
            data: data
        )
        
        // WHEN
        result = try await service.getUser(credentials: .init(
            username: "username",
            password: "password"
        ))
        
        // THEN
        XCTAssertEqual(result, Me(
            firstName: "Noel",
            lastName: "Flantier",
            rootItem: .init(
                idParent: "",
                id: "4b8e41fd4a6a89712f15bbf102421b9338cfab11",
                name: "dossierTest",
                isDirectory: true,
                lastModifiedAt: dateFormatter.date(from: "2021-11-29T10:57:13Z")!,
                size: nil,
                contentType: nil
            )
        ))
    }
    
    func test_withWrongCredentials() async throws {
        MockURLProtocol.mockData[url] = MockURLResponse(
            status: .unauthorized,
            headers: [:],
            data: nil
        )
        
        // WHEN & THEN
        do {
            _ = try await service.getUser(credentials: .init(
                username: "usrname",
                password: "passwrd"
            ))
        } catch APIClientError.authenticationFailed {
            XCTAssertTrue(true)
        } catch {
            XCTAssertTrue(false)
        }
    }
    
    func test_withMalformedResponseData() async throws {
        // GIVEN
        data = "{\"firstName\":\"Noel\",\"rootItem\":{\"id\":\"4b8e41fd4a6a89712f15bbf102421b9338cfab11\"\"name\":\"dossierTest\",\"isDir\":true}}\n".data(using: .utf8)
        
        MockURLProtocol.mockData[url] = MockURLResponse(
            status: .ok,
            headers: [.Header.Keys.contentType: .Header.Values.contentTypeJSON],
            data: data
        )
        
        // WHEN & THEN
        do {
            _ = try await service.getUser(credentials: .init(
                username: "usrname",
                password: "passwrd"
            ))
        } catch is DecodingError {
            XCTAssertTrue(true)
        } catch {
            XCTAssertTrue(false)
        }
    }
    
}