92 lines
3.3 KiB
Swift
92 lines
3.3 KiB
Swift
//
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// Copyright 2018-2020 Amazon.com,
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// Inc. or its affiliates. All Rights Reserved.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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import XCTest
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@testable import AppSyncRealTimeClient
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class RealtimeConnectionProviderTestBase: XCTestCase {
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let url = URL(string: "https://www.appsyncrealtimeclient.test/")!
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var websocket: MockWebsocketProvider!
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//swiftlint:disable:next weak_delegate
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var websocketDelegate: AppSyncWebsocketDelegate!
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// Shared test expectations. Set expected fulfillment counts and inversions as
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// needed in the body of the test.
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var receivedInProgress: XCTestExpectation!
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var receivedConnected: XCTestExpectation!
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var receivedNotConnected: XCTestExpectation!
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var receivedError: XCTestExpectation!
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override func setUp() {
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receivedInProgress = expectation(description: "receivedInProgress")
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receivedConnected = expectation(description: "receivedConnected")
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receivedNotConnected = expectation(description: "receivedNotConnected")
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receivedError = expectation(description: "receivedError")
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}
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// MARK: - Utilities
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/// Creates a RealtimeConnectionProvider, adds a listener that fulfills the shared
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/// expectations as appropriate, and invokes `connect()`. Returns the provider for
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/// subsequent testing.
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///
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/// Preconditions:
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/// - `self.websocket` must be initialized in the mock provider's `onConnect`
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func createProviderAndConnect() -> RealtimeConnectionProvider {
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let provider = RealtimeConnectionProvider(for: url, websocket: websocket)
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provider.addListener(identifier: "testListener") { event in
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switch event {
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case .connection(let connectionState):
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switch connectionState {
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case .inProgress:
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self.receivedInProgress.fulfill()
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case .connected:
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self.receivedConnected.fulfill()
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case .notConnected:
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self.receivedNotConnected.fulfill()
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}
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case .error:
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self.receivedError.fulfill()
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default:
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break
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}
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}
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provider.connect()
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return provider
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}
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/// Given a Stringified AppSyncMessage, validates the `type` is equal to `expectedType`
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/// - Parameter message: a string representation of a websocket message
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/// - Parameter expectedType: the expected value of the type
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/// - Returns: type `type` field of the message, if present
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static func messageType(of message: String, equals expectedType: String) -> Bool {
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guard
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let messageData = message.data(using: .utf8),
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let dict = try? JSONSerialization.jsonObject(with: messageData) as? [String: String]
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else {
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return false
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}
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guard let type = dict["type"] else {
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return false
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}
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return type == expectedType
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}
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/// Creates a connection acknowledgement message with the specified timeout
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/// - Parameter timeout: stale connection timeout, in milliseconds (defaults to 300,000)
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static func makeConnectionAckMessage(withTimeout timeout: Int = 300_000) -> Data {
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#"{"type":"connection_ack","payload":{"connectionTimeoutMs":\#(timeout)}}"#
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.data(using: .utf8)!
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}
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}
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