88 lines
2.8 KiB
Swift
88 lines
2.8 KiB
Swift
//
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// TestTransport.swift
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// AccountTests
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//
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// Created by Maurice Parker on 5/4/19.
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// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import RSWeb
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import XCTest
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protocol TestTransportMockResponseProviding: class {
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func mockResponseFileUrl(for components: URLComponents) -> URL?
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}
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final class TestTransport: Transport {
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enum TestTransportError: String, Error {
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case invalidState = "The test wasn't set up correctly."
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}
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var testFiles = [String: String]()
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var testStatusCodes = [String: Int]()
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weak var mockResponseFileUrlProvider: TestTransportMockResponseProviding?
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private func httpResponse(for request: URLRequest, statusCode: Int = 200) -> HTTPURLResponse {
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guard let url = request.url else {
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fatalError("Attempting to mock a http response for a request without a URL \(request).")
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}
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return HTTPURLResponse(url: url, statusCode: statusCode, httpVersion: "HTTP/1.1", headerFields: nil)!
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}
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func cancelAll() { }
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func send(request: URLRequest, completion: @escaping (Result<(HTTPURLResponse, Data?), Error>) -> Void) {
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guard let url = request.url, let components = URLComponents(url: url, resolvingAgainstBaseURL: false) else {
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completion(.failure(TestTransportError.invalidState))
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return
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}
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let urlString = url.absoluteString
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let response = httpResponse(for: request, statusCode: testStatusCodes[urlString] ?? 200)
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let testFileURL: URL
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if let provider = mockResponseFileUrlProvider {
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guard let providerUrl = provider.mockResponseFileUrl(for: components) else {
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XCTFail("Test behaviour undefined. Mock provider failed to provide non-nil URL for \(components).")
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return
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}
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testFileURL = providerUrl
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} else if let testKeyAndFileName = testFiles.first(where: { urlString.contains($0.key) }) {
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testFileURL = Bundle(for: TestTransport.self).resourceURL!.appendingPathComponent(testKeyAndFileName.value)
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} else {
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// XCTFail("Missing mock response for: \(urlString)")
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print("***\nWARNING: \(self) missing mock response for:\n\(urlString)\n***")
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DispatchQueue.global(qos: .background).async {
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completion(.success((response, nil)))
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}
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return
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}
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do {
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let data = try Data(contentsOf: testFileURL)
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DispatchQueue.global(qos: .background).async {
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completion(.success((response, data)))
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}
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} catch {
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XCTFail("Unable to read file at \(testFileURL) because \(error).")
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DispatchQueue.global(qos: .background).async {
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completion(.failure(error))
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}
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}
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}
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func send(request: URLRequest, method: String, completion: @escaping (Result<Void, Error>) -> Void) {
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fatalError("Unimplemented.")
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}
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func send(request: URLRequest, method: String, payload: Data, completion: @escaping (Result<(HTTPURLResponse, Data?), Error>) -> Void) {
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fatalError("Unimplemented.")
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}
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}
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