169 lines
8.8 KiB
Swift
169 lines
8.8 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import XCTest
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@testable import ElementX
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@MainActor
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class AppLockSetupPINScreenViewModelTests: XCTestCase {
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var appLockService: AppLockService!
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var keychainController: KeychainControllerMock!
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var viewModel: AppLockSetupPINScreenViewModelProtocol!
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var context: AppLockSetupPINScreenViewModelType.Context { viewModel.context }
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override func setUp() {
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AppSettings.resetAllSettings()
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keychainController = KeychainControllerMock()
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appLockService = AppLockService(keychainController: keychainController, appSettings: AppSettings())
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}
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override func tearDown() {
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AppSettings.resetAllSettings()
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}
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func testCreatePIN() async throws {
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// Given the screen in create mode.
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viewModel = AppLockSetupPINScreenViewModel(initialMode: .create, isMandatory: false, appLockService: appLockService)
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XCTAssertEqual(context.viewState.mode, .create, "The mode should start as creation.")
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// When entering an new PIN.
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let createDeferred = deferFulfillment(context.$viewState, message: "A valid PIN needs confirming.") { $0.mode == .confirm }
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context.pinCode = "2023"
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try await createDeferred.fulfill()
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// Then the screen should transition to the confirm mode.
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XCTAssertEqual(context.viewState.mode, .confirm, "The mode should transition to confirmation.")
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// When re-entering that PIN.
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let confirmDeferred = deferFulfillment(viewModel.actions, message: "The screen should be finished.") { $0 == .complete }
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context.pinCode = "2023"
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// Then the screen should signal it is complete.
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try await confirmDeferred.fulfill()
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}
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func testCreateWeakPIN() async throws {
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// Given the screen in create mode.
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viewModel = AppLockSetupPINScreenViewModel(initialMode: .create, isMandatory: false, appLockService: appLockService)
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XCTAssertEqual(context.viewState.mode, .create, "The mode should start as creation.")
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XCTAssertNil(context.alertInfo, "There shouldn't be an alert to begin with.")
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// When entering a weak PIN on the blocklist.
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let deferred = deferFulfillment(context.$viewState) { $0.bindings.alertInfo != nil }
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context.pinCode = "0000"
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try await deferred.fulfill()
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// Then the PIN should be rejected and the user alerted.
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XCTAssertEqual(context.alertInfo?.id, .weakPIN, "The weak PIN should be rejected.")
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XCTAssertEqual(context.viewState.mode, .create, "The mode shouldn't transition after an invalid PIN code.")
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}
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func testCreatePINMismatch() async throws {
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// Given the confirm mode after entering a new PIN.
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viewModel = AppLockSetupPINScreenViewModel(initialMode: .create, isMandatory: false, appLockService: appLockService)
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XCTAssertEqual(context.viewState.mode, .create, "The mode should start as creation.")
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XCTAssertNil(context.alertInfo, "There shouldn't be an alert to begin with.")
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let createDeferred = deferFulfillment(context.$viewState, message: "A valid PIN needs confirming.") { $0.mode == .confirm }
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context.pinCode = "2023"
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try await createDeferred.fulfill()
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XCTAssertEqual(context.viewState.mode, .confirm, "The mode should transition to confirmation.")
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XCTAssertEqual(context.viewState.numberOfConfirmAttempts, 0, "The mode should start with zero attempts.")
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XCTAssertNil(context.alertInfo, "There shouldn't be an alert after a valid initial PIN.")
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// When entering the new PIN incorrectly
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var deferred = deferFulfillment(context.$viewState) { $0.numberOfConfirmAttempts == 1 }
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context.pinCode = "2024"
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try await deferred.fulfill()
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// Then the user should be alerted.
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XCTAssertEqual(context.viewState.numberOfConfirmAttempts, 1, "The mismatch should be counted.")
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XCTAssertEqual(context.alertInfo?.id, .pinMismatch, "A PIN mismatch should be rejected.")
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// When dismissing the alert and repeating twice more.
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context.alertInfo?.primaryButton.action?()
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deferred = deferFulfillment(context.$viewState) { $0.numberOfConfirmAttempts == 2 }
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context.pinCode = "2024"
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try await deferred.fulfill()
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context.alertInfo?.primaryButton.action?()
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deferred = deferFulfillment(context.$viewState) { $0.numberOfConfirmAttempts == 3 }
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context.pinCode = "2024"
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try await deferred.fulfill()
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XCTAssertEqual(context.viewState.numberOfConfirmAttempts, 3, "All the mismatches should be counted.")
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XCTAssertEqual(context.alertInfo?.id, .pinMismatch, "A PIN mismatch should be rejected.")
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// Then tapping the alert button should reset back to create mode.
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context.alertInfo?.primaryButton.action?()
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XCTAssertEqual(context.viewState.mode, .create, "The mode should revert back to creation.")
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}
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func testUnlock() async throws {
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// Given the screen in unlock mode.
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viewModel = AppLockSetupPINScreenViewModel(initialMode: .unlock, isMandatory: false, appLockService: appLockService)
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let pinCode = "2023"
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keychainController.pinCodeReturnValue = pinCode
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keychainController.containsPINCodeReturnValue = true
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keychainController.containsPINCodeBiometricStateReturnValue = false
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// When entering the configured PIN.
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let deferred = deferFulfillment(viewModel.actions, message: "The screen should be finished.") { $0 == .complete }
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context.pinCode = pinCode
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// Then the screen should signal it is complete.
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try await deferred.fulfill()
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}
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func testUnlockFailed() async throws {
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// Given the screen in unlock mode.
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viewModel = AppLockSetupPINScreenViewModel(initialMode: .unlock, isMandatory: false, appLockService: appLockService)
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keychainController.pinCodeReturnValue = "2023"
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keychainController.containsPINCodeReturnValue = true
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keychainController.containsPINCodeBiometricStateReturnValue = false
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XCTAssertEqual(context.viewState.numberOfUnlockAttempts, 0, "The screen should start with zero attempts.")
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XCTAssertFalse(context.viewState.isSubtitleWarning, "The subtitle should start without a warning.")
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XCTAssertFalse(context.viewState.isLoggingOut, "The view should not start disabled.")
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// When entering a different PIN.
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var deferred = deferFulfillment(context.$viewState, keyPath: \.bindings.pinCode, transitionValues: ["", "2024", ""],
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message: "The PIN should be entered and then cleared by the view model.")
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context.pinCode = "2024"
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try await deferred.fulfill()
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// Then the PIN should be rejected and the user notified.
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XCTAssertEqual(context.viewState.numberOfUnlockAttempts, 1, "An invalid attempt should be counted.")
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XCTAssertTrue(context.viewState.isSubtitleWarning, "The subtitle should then show a warning.")
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XCTAssertFalse(context.viewState.isLoggingOut, "The view should still work.")
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// When entering the same incorrect PIN twice more
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deferred = deferFulfillment(context.$viewState, keyPath: \.bindings.pinCode, transitionValues: ["", "2024", ""],
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message: "The PIN should be entered and then cleared by the view model.")
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context.pinCode = "2024"
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try await deferred.fulfill()
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deferred = deferFulfillment(context.$viewState, keyPath: \.bindings.pinCode, transitionValues: ["", "2024", ""],
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message: "The PIN should be entered and then cleared by the view model.")
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context.pinCode = "2024"
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try await deferred.fulfill()
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// Then the user should be alerted that they're being signed out.
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XCTAssertEqual(context.viewState.numberOfUnlockAttempts, 3, "All invalid attempts should be counted.")
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XCTAssertTrue(context.viewState.isSubtitleWarning, "The subtitle should continue showing a warning.")
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XCTAssertEqual(context.alertInfo?.id, .forceLogout, "An alert should be shown about a force logout.")
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XCTAssertTrue(context.viewState.isLoggingOut, "The view should become disabled.")
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}
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}
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