Example of TestScheduler and TestSubject (in Spock)

Transcript

1. Example of TestScheduler / TestSubject ( in Spock) Masayuki IZUMI

   - @izumin5210 kyobashi.dex #2

2. > Masayuki IZUMI a.k.a. @izumin5210 > Rekimoto Lab. at the

   Univ. of Tokyo > Strobo, Inc. / Wantedly, Inc. > Rubyist / Androider / {Java,Type}Scripter

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5. public Observable<ScanResult> scan(long timespan, TimeUnit unit) { return scanner.startScan() .filter(result

   -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> cache.removeAll().subscribe()); }

6. public Observable<ScanResult> scan(long timespan, TimeUnit unit) { return scanner.startScan() .filter(result

   -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> cache.removeAll().subscribe()); }

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9. public final Observable<List<T>> buffer(long timespan, TimeUnit unit) { return buffer(timespan,

   unit, Integer.MAX_VALUE, Schedulers.computation()); } 0CTFSWBCMF5CVGGFS MPOH
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10. public Observable<ScanResult> scan(long timespan, TimeUnit unit, Scheduler scheduler) { return

    scanner.startScan() .filter(result -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit, scheduler) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> cache.removeAll().subscribe()); }

11. public Observable<ScanResult> scan(long timespan, TimeUnit unit, Scheduler scheduler) { return

    scanner.startScan() .filter(result -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit, scheduler) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> cache.removeAll().subscribe()); }

12. given: def unit = TimeUnit.MILLISECONDS def scheduler = new TestScheduler()

    def subject = TestSubject.<ScanResult>create(scheduler) def subscriber = new TestSubscriber() def subscription = repo.scan(3000, unit, schueduler) .subscribe(subscriber) // stubbing scanner.startScan() >> subject when: subject.onNext(Mock(ScanResult)) scheduler.triggerActions() then: 1 * cache.isCached(_) >> false 1 * cache.put(_) >> { Observable.just(it) } 0 * api._ subscriber.assertValueCount(0) when: scheduler.advanceTimeBy(3000, unit) then: 1 * api.check({ it.size() == 1 }) >> Observable.just([...]) subscriber.assertValueCount(1)

13. given: def unit = TimeUnit.MILLISECONDS def scheduler = new TestScheduler()

    def subject = TestSubject.<ScanResult>create(scheduler) def subscriber = new TestSubscriber() def subscription = repo.scan(3000, unit, schueduler) .subscribe(subscriber) // stubbing scanner.startScan() >> subject

14. given: def unit = TimeUnit.MILLISECONDS def scheduler = new TestScheduler()

    def subject = TestSubject.<ScanResult>create(scheduler) def subscriber = new TestSubscriber() def subscription = repo.scan(3000, unit, schueduler) .subscribe(subscriber) // stubbing scanner.startScan() >> subject

15. given: def unit = TimeUnit.MILLISECONDS def scheduler = new TestScheduler()

    def subject = TestSubject.<ScanResult>create(scheduler) def subscriber = new TestSubscriber() def subscription = repo.scan(3000, unit, schueduler) .subscribe(subscriber) // stubbing scanner.startScan() >> subject

16. given: def unit = TimeUnit.MILLISECONDS def scheduler = new TestScheduler()

    def subject = TestSubject.<ScanResult>create(scheduler) def subscriber = new TestSubscriber() def subscription = repo.scan(3000, unit, schueduler) .subscribe(subscriber) // stubbing scanner.startScan() >> subject

17. when: subject.onNext(Mock(ScanResult)) scheduler.triggerActions() then: 1 * cache.isCached(_) >> false 1

    * cache.put(_) >> { Observable.just(it) } 0 * api._ subscriber.assertValueCount(0)

18. when: subject.onNext(Mock(ScanResult)) scheduler.triggerActions() then: 1 * cache.isCached(_) >> false 1

    * cache.put(_) >> { Observable.just(it) } 0 * api._ subscriber.assertValueCount(0)

19. when: subject.onNext(Mock(ScanResult)) scheduler.triggerActions() then: 1 * cache.isCached(_) >> false 1

    * cache.put(_) >> { Observable.just(it) } 0 * api._ subscriber.assertValueCount(0)

20. when: subject.onNext(Mock(ScanResult)) scheduler.triggerActions() then: 1 * cache.isCached(_) >> false 1

    * cache.put(_) >> { Observable.just(it) } 0 * api._ subscriber.assertValueCount(0) scanner.startScan() .filter(result -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit, scheduler) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> ...));

21. when: subject.onNext(Mock(ScanResult)) scheduler.triggerActions() then: 1 * cache.isCached(_) >> false 1

    * cache.put(_) >> { Observable.just(it) } 0 * api._ subscriber.assertValueCount(0) scanner.startScan() .filter(result -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit, scheduler) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> ...));

22. when: subject.onNext(Mock(ScanResult)) scheduler.triggerActions() then: 1 * cache.isCached(_) >> false 1

    * cache.put(_) >> { Observable.just(it) } 0 * api._ subscriber.assertValueCount(0) scanner.startScan() .filter(result -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit, scheduler) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> ...)); IBT
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23. when: scheduler.advanceTimeBy(3000, unit) then: 1 * api.check({ it.size() == 1

    }) >> Observable.just([...]) subscriber.assertValueCount(1)

24. when: scheduler.advanceTimeBy(3000, unit) then: 1 * api.check({ it.size() == 1

    }) >> Observable.just([...]) subscriber.assertValueCount(1) DVSSFOU
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25. when: scheduler.advanceTimeBy(3000, unit) then: 1 * api.check({ it.size() == 1

    }) >> Observable.just([...]) subscriber.assertValueCount(1)

26. when: scheduler.advanceTimeBy(3000, unit) then: 1 * api.check({ it.size() == 1

    }) >> Observable.just([...]) subscriber.assertValueCount(1) scanner.startScan() .filter(result -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit, scheduler) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> ...));

27. when: scheduler.advanceTimeBy(3000, unit) then: 1 * api.check({ it.size() == 1

    }) >> Observable.just([...]) subscriber.assertValueCount(1) scanner.startScan() .filter(result -> !cache.isCached(result)) .flatMap(cache::put) .buffer(timespan, unit, scheduler) .filter(results -> !results.isEmpty()) .flatMap(this::checkAvailability) .doOnSubscribe(() -> ...));

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29. Example of TestScheduler / TestSubject ( in Spock) Masayuki IZUMI

    - @izumin5210 kyobashi.dex #2