7add662cad
* Add some tests for DeferredFulfillment with Observation. * Use StateStoreViewModelV2 in AuthenticationStartScreen. * Use StateStoreViewModelV2 in ServerConfirmationScreen. * Use StateStoreViewModelV2 in ServerSelectionScreen. * Use StateStoreViewModelV2 in SoftLogoutScreen. * Use StateStoreViewModelV2 in SettingsScreen. * Use StateStoreViewModelV2 in DeveloperOptionsScreen. * Use StateStoreViewModelV2 in AdvancedSettingsScreen.
82 lines
3.0 KiB
Swift
82 lines
3.0 KiB
Swift
//
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// Copyright 2025 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
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// Please see LICENSE files in the repository root for full details.
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//
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@testable import ElementX
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import XCTest
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class DeferredFulfillmentTests: XCTestCase {
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private let observable = SomeObservable()
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func testObservableWithoutUpdate() async throws {
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// Given a deferred fulfilment on a value that already matches the expected value.
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let initialValue = observable.counter
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let deferred = deferFulfillment(observable.observe(\.counter)) { $0 == initialValue }
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// Then the test should be fulfilled by the initial value and shouldn't timeout whilst waiting for a update.
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try await deferred.fulfill()
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}
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func testObservableWithSynchronousUpdate() async throws {
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// Given a deferred fulfilment for an expected value.
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let newValue = 100
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let deferred = deferFulfillment(observable.observe(\.counter)) { $0 == newValue }
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// When that value is changed synchronously.
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observable.counter = newValue
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XCTAssertEqual(observable.counter, newValue)
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// Then the test should be fulfilled.
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try await deferred.fulfill()
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XCTAssertEqual(observable.counter, newValue)
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}
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func testObservableAsynchronousUpdate() async throws {
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// Given a deferred fulfilment for an expected value.
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let newValue = 100
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let deferred = deferFulfillment(observable.observe(\.counter)) { $0 == newValue }
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// When that value is changed asynchronously.
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Task { try await observable.setCounter(newValue, delay: .seconds(1)) }
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XCTAssertEqual(observable.counter, 0)
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// Then the test should be fulfilled once the update has taken place.
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try await deferred.fulfill()
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XCTAssertEqual(observable.counter, newValue)
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}
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func testObservableMultipleUpdates() async throws {
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// Given a deferred fulfilment for an expected value.
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let finalValue = 500
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let deferred = deferFulfillment(observable.observe(\.counter)) { $0 == finalValue }
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// When that value is changed asynchronously with some intermediate values before it is reached.
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Task {
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try await observable.setCounter(100, delay: .seconds(.random(in: 1.0...2.0)))
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try await observable.setCounter(250, delay: .seconds(.random(in: 1.0...2.0)))
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try await observable.setCounter(finalValue, delay: .seconds(.random(in: 1.0...2.0)))
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}
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XCTAssertEqual(observable.counter, 0)
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// Then the test should be fulfilled once the expected update has taken place.
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try await deferred.fulfill()
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XCTAssertEqual(observable.counter, finalValue)
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}
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}
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// MARK: - Helpers
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@Observable private class SomeObservable {
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var counter = 0
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func setCounter(_ newValue: Int, delay: Duration? = nil) async throws {
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if let delay {
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try await Task.sleep(for: delay)
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}
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counter = newValue
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}
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}
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