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NormalBehaviorTest.swift
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NormalBehaviorTest.swift
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/*
* Copyright (c) 2020, Nordic Semiconductor
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
import XCTest
@testable import nRF_Blinky
@testable import CoreBluetoothMock
/// This test simulates normal behavior of a device with Nordic LED Button service.
///
/// It is using the app and testing it by sending notifications that trigger different
/// actions.
class NormalBehaviorTest: XCTestCase {
override func setUpWithError() throws {
// This method is called AFTER ScannerTableViewController.viewDidLoad()
// where the BlinkyManager is instantiated. A separate mock manager
// is not created in this test.
// Initially mock Bluetooth adapter is powered Off.
CBMCentralManagerMock.simulatePeripherals([blinky, hrm, thingy])
CBMCentralManagerMock.simulateInitialState(.poweredOn)
}
override func tearDownWithError() throws {
// We can't call CBMCentralManagerMock.tearDownSimulation() here.
// That would invalidate the BlinkyManager in ScannerTableViewController.
// The central manager must be reused, so let's just power mock off,
// which will allow us to set different set of peripherals in another test.
CBMCentralManagerMock.simulatePowerOff()
}
func testScanningBlinky() {
// Set up the devices in range.
blinky.simulateProximityChange(.immediate)
hrm.simulateProximityChange(.near)
thingy.simulateProximityChange(.far)
// Reset the blinky.
blinky.simulateReset()
// Wait until the blinky is found.
var target: BlinkyPeripheral?
let found = XCTestExpectation(description: "Device found")
Sim.onBlinkyDiscovery { blinky in
XCTAssertEqual(blinky.advertisedName, "nRF Blinky")
XCTAssert(blinky.isConnectable == true)
XCTAssert(blinky.isConnected == false)
XCTAssertGreaterThanOrEqual(blinky.RSSI.intValue, -70 - 15)
XCTAssertLessThanOrEqual(blinky.RSSI.intValue, -70 + 15)
target = blinky
found.fulfill()
}
wait(for: [found], timeout: 3)
XCTAssertNotNil(target, "nRF Blinky not found. Make sure you run the test on a simulator.")
if target == nil {
// Going further would cause a crash.
return
}
// Select found device.
Sim.post(.selectPeripheral(at: 0))
// Wait until blinky is connected and ready.
let connected = XCTestExpectation(description: "Connected")
let ready = XCTestExpectation(description: "Ready")
target!.onConnected {
connected.fulfill()
}
target!.onReady { ledSupported, buttonSupported in
if ledSupported && buttonSupported {
ready.fulfill()
}
}
wait(for: [connected, ready], timeout: 3)
let appDelegate = UIApplication.shared.delegate as! AppDelegate
let navigationController = appDelegate.window!.rootViewController as! UINavigationController
let blinkyViewController = navigationController.topViewController as! BlinkyViewController
// Initially, after reset, LED is OFF and button is released.
// Enable LED by simulating toggling the switch.
// The `onLedStateDidChange` handler will be called after the initial state has been read.
let ledEnabled = XCTestExpectation(description: "LED Enabled")
let ledObserver = target!.onLedStateDidChange { isOn in
if isOn == true {
ledEnabled.fulfill()
} else if isOn == false {
// Simulate toggling the switch.
blinkyViewController.ledToggleSwitch.setOn(true, animated: true)
blinkyViewController.ledToggleSwitchDidChange(blinkyViewController.ledToggleSwitch)
}
}
wait(for: [ledEnabled], timeout: 6)
Sim.dispose(ledObserver)
// Simulate 2 notifications.
let buttonPressed = XCTestExpectation(description: "Button pressed")
let buttonReleased = XCTestExpectation(description: "Button released")
let buttonObserver = target!.onButtonStateDidChange { isPressed in
if isPressed == true {
// Simulate releasing the BTN1 on DK.
blinky.simulateValueUpdate(Data([0x00]), for: .buttonCharacteristic)
buttonPressed.fulfill()
} else {
buttonReleased.fulfill()
}
}
// Simulate clicking the BTN1 on DK.
blinky.simulateValueUpdate(Data([0x01]), for: .buttonCharacteristic)
wait(for: [buttonPressed, buttonReleased], timeout: 1)
Sim.dispose(buttonObserver)
// Simulate graceful disconnect.
let disconnection = XCTestExpectation(description: "Disconnection")
target!.onDisconnected { error in
XCTAssertEqual((error as? CBMError)?.code, CBError.peripheralDisconnected)
disconnection.fulfill()
}
blinky.simulateDisconnection()
wait(for: [disconnection], timeout: 1)
navigationController.popViewController(animated: true)
}
}