https://github.com/renetik/renetik-ios-event
Documentation
Framework to enjoy, improve and speed up your application development while writing readable code.
Used as library in many projects and improving it while developing new projects.
I am open for Hire or investment in my mobile app music production & perfromance project Renetik Instruments www.renetik.com.
Installation
You can install using swift package manager for now using latest released version or master.
Examples
/**
* Simple event use cases
*/
final class EventTests: XCTestCase {
func testListen() throws {
let event = event()
var count = 0
event.listen { count += 1 }
event.fire()
event.fire()
XCTAssertEqual(count, 2)
}
func testArgListen() throws {
let event: CSEvent<Int> = event()
var count = 0
event.listen { count += $0 }
event.fire(2)
event.fire(3)
XCTAssertEqual(count, 5)
}
func testListenOnce() throws {
let event = event()
var count = 0
event.listenOnce { count += 1 }
event.fire()
event.fire()
XCTAssertEqual(count, 1)
}
func testArgListenOnce() throws {
let event = event()
var count = 0
event.listenOnce { count += 1 }
event.fire()
event.fire()
XCTAssertEqual(count, 1)
}
func testEventCancel() throws {
let event = event()
var count = 0
event.listen { registration, _ in
count += 1
if count == 2 { registration.cancel() }
}
event.fire()
event.fire()
event.fire()
XCTAssertEqual(count, 2)
}
func testStringEventCancel() throws {
let event: CSEvent<String> = event()
var value: String? = nil
event.listen {
$0.cancel()
value = $1
}
event.fire("first")
XCTAssertEqual("first", value)
event.fire("second")
}
func testEventPause() throws {
let event = event()
var count = 0
let registration = event.listen { count += 1 }
registration.pause { event.fire() }
XCTAssertEqual(count, 0)
event.fire()
XCTAssertEqual(count, 1)
}
}
/**
* Simple event property use cases
*/
class EventPropertyTests: XCTestCase {
func testOnChange() throws {
let property = property("initial")
var count = 0
property.onChange { count += 1 }
property.value = "second"
property.value = "third"
XCTAssertEqual(count, 2)
XCTAssertEqual("third", property.value)
}
func testOnApply() throws {
var count = 0
let property = property("initial") { _ in count += 1 }.apply()
property.value = "second"
property.value = "third"
XCTAssertEqual(count, 3)
XCTAssertEqual("third", property.value)
}
func testArgListen() throws {
var count = 0
let property = property(0) { count += 1 }
property.value += 2
property.value += 3
XCTAssertEqual(5, property.value)
XCTAssertEqual(2, count)
}
func testEquals() throws {
var count = 0
let property = property(""){ count += 1 }
property.value = "second"
property.value = "second"
XCTAssertEqual(count, 1)
XCTAssertEqual("second", property.value)
}
func testOnChangeOnce() throws {
var count = 0
let property = property("")
property.onChangeOnce { count += 1 }
property.value = "second"
property.value = "third"
XCTAssertEqual(count, 1)
XCTAssertEqual("third", property.value)
}
func testEventCancel() throws {
var count = 0
let property = property(0)
property.onChange { registration, value in
count += value
if count > 2 { registration.cancel() }
}
property.value = 1
property.value = 2
property.value = 3
XCTAssertEqual(count, 3)
}
func testEventPause() throws {
var count = 0
let property = property(0)
let registration = property.onChange { count += $1 }
registration.pause { property.value = 1 }
XCTAssertEqual(count, 0)
property.value = 2
XCTAssertEqual(count, 2)
}
}
/**
* Event unregister after owner niled
*/
final class EventOwnerEventTest: XCTestCase {
func testUnregisteredAfterNilled() throws {
var owner: CSEventOwner? = CSEventOwnerBase()
let event = event()
var count = 0
owner!.register(event.listen { count += 1 })
event.fire()
event.fire()
XCTAssertEqual(count, 2)
owner = nil
event.fire()
XCTAssertEqual(count, 2)
}
}
/**
* Event property unregister after owner niled
*/
class EventOwnerPropertyTest: XCTestCase {
class SomeClass: CSEventOwnerBase {
let prop = property("initial value")
init(arugment: SomeClass? = nil) {
super.init()
arugment?.also {
register($0.prop.onChange { [unowned self] in prop.value = $0 })
}
}
}
func testUnregisteredAfterNilled() throws {
let class1 = SomeClass()
var class2: SomeClass? = SomeClass(arugment: class1)
let class3 = SomeClass(arugment: class2)
XCTAssertEqual(class3.prop.value, "initial value")
class1.prop.value = "first value"
XCTAssertEqual(class3.prop.value, "first value")
class2 = nil
class1.prop.value = "second value"
XCTAssertEqual(class3.prop.value, "first value")
}
}
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