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243 lines (194 loc) · 9.42 KB
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//
// Copyright © 2020 Curato Research BV. All rights reserved.
//
import XCTest
import Quick
import Nimble
import InjectableLoggers
@testable import ArrayPlusTuple
class ArraySpec: QuickSpec {
override func spec() {
let supportedElementsAmount = 24
let unsupportedElementsAmount = supportedElementsAmount + 1
describe("Given an array") {
var sut: [Any]!
context("with 0 elements", {
beforeEach {
sut = []
}
context("When tuple is called", closure: {
var tuple: Any!
beforeEach {
tuple = sut.tuple
}
it("Then provided tuple is empty tuple", closure: {
XCTAssertNotNil(tuple as? ())
})
})
})
}
describe("Given a string array") {
var sut: [String]!
var tuple: Any!
context("with 1 element", {
beforeEach {
sut = self.stringArray(withSize: 1)
}
context("When tuple is called", closure: {
beforeEach {
tuple = sut.tuple
}
it("Then tuple contains correct elements", closure: {
XCTAssertEqual(tuple as! (String), (self.name(forIndex: 0)))
})
})
})
(2...supportedElementsAmount).forEach({ (elementCount) in
context("with \(elementCount) elements", {
beforeEach {
sut = self.stringArray(withSize: elementCount)
}
context("When tuple is called", closure: {
beforeEach {
tuple = sut.tuple
}
it("Then tuple contains correct elements", closure: {
let tupleElements = Mirror(reflecting: tuple!).children.map({ $0.value })
for (index, element) in tupleElements.enumerated() {
XCTAssertEqual(element as! String, self.name(forIndex: index), "expected value \(element) at index \(index) in tuple with size \(elementCount)")
}
})
it("Then tuple has \(elementCount) elements", closure: {
let tupleElements = Mirror(reflecting: tuple!).children.map({ $0.value })
XCTAssertEqual(tupleElements.count, elementCount)
})
})
})
})
context("with unsupported (\(unsupportedElementsAmount)+) amount of elements", {
var mockLogger: MockLogger!
beforeEach {
sut = self.stringArray(withSize: unsupportedElementsAmount + 1)
mockLogger = MockLogger()
logger.relay = mockLogger
}
context("When tuple is called", closure: {
beforeEach {
tuple = sut.tuple
}
it("Then tuple contains correct elements", closure: {
let tupleElements = Mirror(reflecting: tuple!).children.map({ $0.value })
for (index, element) in tupleElements.enumerated() {
XCTAssertEqual(element as! String, self.name(forIndex: index))
}
})
it("Then tuple has \(supportedElementsAmount) elements", closure: {
let tupleElements = Mirror(reflecting: tuple!).children.map({ $0.value })
XCTAssertEqual(tupleElements.count, supportedElementsAmount)
})
it("Then it logs warning to logger", closure: {
XCTAssertEqual(mockLogger.loggedMessages(atLevel: .warning).last?.message as? String, """
Can currently only create tuples from arrays with up to \(supportedElementsAmount) elements. Elements at index \(unsupportedElementsAmount) and up will be lost
""")
})
})
})
}
describe("Given an int array") {
var sut: [Int]!
var tuple: Any!
context("with 1 element", {
beforeEach {
sut = self.intArray(withSize: 1)
}
context("When tuple is called", closure: {
beforeEach {
tuple = sut.tuple
}
it("Then tuple contains correct elements", closure: {
XCTAssertEqual(tuple as! (Int), (0))
})
})
})
(2...supportedElementsAmount).forEach({ (elementCount) in
context("with \(elementCount) elements", {
beforeEach {
sut = self.intArray(withSize: elementCount)
}
context("When tuple is called", closure: {
beforeEach {
tuple = sut.tuple
}
it("Then tuple contains correct elements", closure: {
let tupleElements = Mirror(reflecting: tuple!).children.map({ $0.value })
for (index, element) in tupleElements.enumerated() {
XCTAssertEqual(element as! Int, index, "expected value \(element) at index \(index) in tuple with size \(elementCount)")
}
})
it("Then tuple has \(elementCount) elements", closure: {
let tupleElements = Mirror(reflecting: tuple!).children.map({ $0.value })
XCTAssertEqual(tupleElements.count, elementCount)
})
})
})
})
context("with unsupported (\(unsupportedElementsAmount)+) amount of elements", {
var mockLogger: MockLogger!
beforeEach {
sut = self.intArray(withSize: unsupportedElementsAmount + 1)
mockLogger = MockLogger()
logger.relay = mockLogger
}
context("When tuple is called", closure: {
beforeEach {
tuple = sut.tuple
}
it("Then tuple contains correct elements", closure: {
let tupleElements = Mirror(reflecting: tuple!).children.map({ $0.value })
for (index, element) in tupleElements.enumerated() {
XCTAssertEqual(element as! Int, index)
}
})
it("Then tuple has \(supportedElementsAmount) elements", closure: {
let tupleElements = Mirror(reflecting: tuple!).children.map({ $0.value })
XCTAssertEqual(tupleElements.count, supportedElementsAmount)
})
it("Then it logs warning to logger", closure: {
XCTAssertEqual(mockLogger.loggedMessages(atLevel: .warning).last?.message as? String, """
Can currently only create tuples from arrays with up to \(supportedElementsAmount) elements. Elements at index \(unsupportedElementsAmount) and up will be lost
""")
})
})
})
}
describe("Given an array with ints and strings") {
var sut: [Any]!
var tuple: Any!
beforeEach {
sut = [1, 2, "three", "four"]
}
context("When tuple is called", closure: {
beforeEach {
tuple = sut.tuple
}
it("Then tuple contains correct elements", closure: {
XCTAssert(tuple as! (Int, Int, String, String) == (1, 2, "three", "four"))
})
})
}
}
}
private extension ArraySpec {
func intArray(withSize size: Int) -> [Int] {
return (0..<size).map({ Int($0) })
}
func stringArray(withSize size: Int) -> [String] {
return intArray(withSize: size).map(name(forIndex:))
}
func name(forIndex index: Int) -> String {
return String(describing: index)
}
}
private func == <T:Equatable> (tuple1:(T,T),tuple2:(T,T)) -> Bool {
return (tuple1.0 == tuple2.0) && (tuple1.1 == tuple2.1)
}