https://twitter.com/laiso/status/821662367738105857 #CodePiece

CodePiece.swift

class PersonSpec: QuickSpec {
    override func spec() {
        describe("Person"){
            describe("成人判定") {
                itBehavesLike("is成人") {
                    let p = Person(name: "_", age: 21)
                    return ["person": p]
                }
                itBehavesLike("is成人") { ["person": Person(name: "_", age: 999)] }
                itBehavesLike("not成人") { ["person": Person(name: "_", age: 19)] }
            }
        }
    }
}

class TestConfiguration: QuickConfiguration {
    override class func configure(_ configuration: Configuration) {
        sharedExamples("is成人") { (sharedExampleContext: @escaping SharedExampleContext) in
            var person: Person!
            beforeEach {
                let context = sharedExampleContext()
                person = context["person"] as! Person
            }
            
            it("> 20") {
                XCTAssertGreaterThanOrEqual(person.age, 20)
            }
        }
        sharedExamples("not成人") { (sharedExampleContext: @escaping SharedExampleContext) in
            var person: Person!
            beforeEach {
                let context = sharedExampleContext()
                person = context["person"] as! Person
            }
            
            it("< 20") {
                XCTAssertLessThan(person.age, 20)
            }
        }
    }
}