Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Toothpick - A fresh approach to DI (Including ...
Search
Daniel Molinero Reguera
April 11, 2017
Programming
1
1.1k
Toothpick - A fresh approach to DI (Including Unit Testing)
Presented at Droidcon Boston 2017
Daniel Molinero Reguera
April 11, 2017
Tweet
Share
More Decks by Daniel Molinero Reguera
See All by Daniel Molinero Reguera
TP3 & KTP: Simple, fast, and boilerplate-free DI for Kotlin
dlemures
0
55
Toothpick - A fresh approach to DI - Short Version
dlemures
0
61
Toothpick Bad Practices 🙅 and Nice Tricks 👌
dlemures
0
100
Dart & Henson - Better Android Intents
dlemures
1
220
Toothpick - A fresh approach to DI
dlemures
0
120
Toothpick & Dependency Injection
dlemures
1
2k
Other Decks in Programming
See All in Programming
20250326_生成AIによる_レビュー承認システムの実現.pdf
takahiromatsui
15
4.4k
Preact、HooksとSignalsの両立 / Preact: Harmonizing Hooks and Signals
ssssota
1
130
AtCoder Heuristic First-step Vol.1 講義スライド(山登り法・焼きなまし法編)
takumi152
3
940
신입 안드로이드 개발자의 AI 스타트업 생존기 (+ Native C++ Code를 Android에서 사용해보기)
dygames
0
480
WordPress Playground for Developers
iambherulal
0
120
コンテナでLambdaをデプロイするときに知っておきたかったこと
_takahash
0
130
家族・子育て重視/沖縄在住を維持しながらエンジニアとしてのキャリアをどのように育てていくか?
ug
0
220
小さく段階的リリースすることで深夜メンテを回避する
mkmk884
2
110
snacks.nvim内のセットアップ不要なプラグインを紹介 / introduce_snacks_nvim
uhooi
0
300
remix + cloudflare workers (DO) docker上でいい感じに開発する
yoshidatomoaki
0
110
CQRS+ES勉強会#1
rechellatek
0
380
ローコードサービスの進化のためのモノレポ移行
taro28
1
320
Featured
See All Featured
For a Future-Friendly Web
brad_frost
176
9.6k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
4
460
The Straight Up "How To Draw Better" Workshop
denniskardys
232
140k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
44
7.1k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
3.8k
Done Done
chrislema
183
16k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
251
21k
A better future with KSS
kneath
238
17k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
27
1.6k
Imperfection Machines: The Place of Print at Facebook
scottboms
267
13k
Designing for Performance
lara
605
69k
Fashionably flexible responsive web design (full day workshop)
malarkey
406
66k
Transcript
A FRESH APPROACH TO DI TOOTHPICK https://github.com/stephanenicolas/toothpick/
ABOUT US Senior Android Dev @ Groupon ~20 years of
Java coding OSS: Dart, TP, BoundBox, … STEPHANE NICOLAS DANIEL MOLINERO REGUERA Android Dev @ Groupon Turbulence Ninja OSS: Dart, TP. +stephane nicolas @D_Lemures
5IF"OESPJE5FBNJT)JSJOH jobs.groupon.com/careers/
THE TALK WHY DI ? WHY TOOTHPICK? TOOTHPICK FEATURES
SOME EXAMPLES UNIT TESTING CONCLUSION SCOPE MODULES & BINDINGS SCOPE TREE SCOPE SINGLETONS MVP & STATE PRESERVATION MULTIPLE ACTIVITIES FLOWS #DroidConBos | @D_Lemures | @GrouponEng
WHY DI ? #DroidConBos | @D_Lemures
WHY DI ? DECOUPLE #DroidConBos | @D_Lemures
WHY DI ? DECOUPLE USES #DroidConBos | @D_Lemures
WHY DI ? DECOUPLE REUSE USES #DroidConBos | @D_Lemures
WHY DI ? DECOUPLE REUSE USES USES USES #DroidConBos |
@D_Lemures
WHY DI ? DECOUPLE REUSE TEST USES USES USES #DroidConBos
| @D_Lemures
WHY DI ? DECOUPLE REUSE TEST USES USES USES MOCK
USES #DroidConBos | @D_Lemures
WHY TOOTHPICK? #DroidConBos | @D_Lemures
WHY TOOTHPICK? SIMPLER #DroidConBos | @D_Lemures
WHY TOOTHPICK? SIMPLER BETTER TEST SUPPORT #DroidConBos | @D_Lemures
WHY TOOTHPICK? SIMPLER BETTER TEST SUPPORT EVEN FASTER #DroidConBos |
@D_Lemures
TOOTHPICK FEATURES public class SmoothieMachine { @Inject IceMachine iceMachine;
public void doSmoothie() { iceMachine.makeIce(); } } @Singleton public class IceMachine { Foo foo; @Inject public IceMachine(Foo foo) { this.foo = foo; } #DroidConBos | @D_Lemures
TOOTHPICK FEATURES public class SmoothieMachine { @Inject IceMachine iceMachine;
public void doSmoothie() { iceMachine.makeIce(); } } @Singleton public class IceMachine { Foo foo; @Inject public IceMachine(Foo foo) { this.foo = foo; } JSR 330 annotations→nothing new here #DroidConBos | @D_Lemures
TOOTHPICK FEATURES SCOPE SCOPE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES SCOPE SCOPE MAKE INJECTIONS #DroidConBos | @D_Lemures
TOOTHPICK FEATURES SCOPE SCOPE MAKE INJECTIONS public class MyApplication extends
Application { @Inject Machine machine; @Override protected void onCreate() { super.onCreate(); Scope appScope = Toothpick.openScope(this); appScope.installModules(…); Toothpick.inject(this, appScope); } } #DroidConBos | @D_Lemures
TOOTHPICK FEATURES SCOPE, MODULES & BINDINGS SCOPE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES SCOPE, MODULES & BINDINGS SCOPE BINDINGS #DroidConBos |
@D_Lemures
TOOTHPICK FEATURES SCOPE, MODULES & BINDINGS SCOPE BINDINGS MODULES #DroidConBos
| @D_Lemures
TOOTHPICK FEATURES SCOPE, MODULES & BINDINGS SCOPE BINDINGS MODULES public
class MyApplication extends Application { @Inject Machine machine; @Override protected void onCreate() { super.onCreate(); Scope appScope = Toothpick.openScope(this); appScope.installModules(new Module() {{ bind(Machine.class).to(IceMachine.class); }}); Toothpick.inject(this, appScope); } } #DroidConBos | @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY 1 SCOPE SCOPE TREE #DroidConBos
| @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE SCOPE TREE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY 2 SCOPE SCOPE TREE #DroidConBos
| @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY 2 SCOPE SERVICE 1 SCOPE
SCOPE TREE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY 2 SCOPE SERVICE 1 SCOPE
FRAGMENT 1 SCOPE SCOPE TREE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY 2 SCOPE SERVICE 1 SCOPE
FRAGMENT 1 SCOPE FRAGMENT 2 SCOPE SCOPE TREE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY 2 SCOPE SERVICE 1 SCOPE
FRAGMENT 3 SCOPE FRAGMENT 1 SCOPE FRAGMENT 2 SCOPE SCOPE TREE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES public class LemonActivity extends Activity { @Inject Machine
machine; @Inject Context context; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Scope scope = Toothpick.openScopes(getApplication(), this); scope.installModules(new Module() {{ bind(Context.class).toInstance(this); }}); Toothpick.inject(this, scope); } } SCOPE TREE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES public class LemonActivity extends Activity { @Inject Machine
machine; @Inject Context context; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Scope scope = Toothpick.openScopes(getApplication(), this); scope.installModules(new Module() {{ bind(Context.class).toInstance(this); }}); Toothpick.inject(this, scope); } } SCOPE TREE APPLICATION SCOPE ACTIVITY SCOPE #DroidConBos | @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY SCOPE SCOPE SINGLETONS #DroidConBos |
@D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY SCOPE APP SINGLETONS SCOPE SINGLETONS
#DroidConBos | @D_Lemures
TOOTHPICK FEATURES APPLICATION SCOPE ACTIVITY SCOPE APP SINGLETONS ACTIVITY SINGLETONS
SCOPE SINGLETONS #DroidConBos | @D_Lemures
TOOTHPICK FEATURES public class Module extends Module { public Module()
{ bind(Machine.class).toInstance(new Ice Machine()); } } SCOPE SINGLETONS SINGLETONS CAN BE DEFINED IN MODULES #DroidConBos | @D_Lemures
TOOTHPICK FEATURES @Singleton public class IceMachine { } @ActivitySingleton public
class SmoothieMachine { } APPLICATION SCOPE ACTIVITY SCOPE SCOPE SINGLETONS OR USING ANNOTATIONS #DroidConBos | @D_Lemures
SOME EXAMPLES MVP & STATE PRESERVATION #DroidConBos | @D_Lemures
APPLICATION SCOPE MVP & STATE PRESERVATION ACTIVITY SCOPE SOME EXAMPLES
#DroidConBos | @D_Lemures
APPLICATION SCOPE MVP & STATE PRESERVATION ACTIVITY SCOPE SOME EXAMPLES
#DroidConBos | @D_Lemures
APPLICATION SCOPE PRESENTER SCOPE MVP & STATE PRESERVATION ACTIVITY SCOPE
SOME EXAMPLES #DroidConBos | @D_Lemures
PRESENTER INSTANCE APPLICATION SCOPE PRESENTER SCOPE MVP & STATE PRESERVATION
ACTIVITY SCOPE SOME EXAMPLES #DroidConBos | @D_Lemures
PRESENTER INSTANCE APPLICATION SCOPE PRESENTER SCOPE MVP & STATE PRESERVATION
SOME EXAMPLES #DroidConBos | @D_Lemures
PRESENTER INSTANCE APPLICATION SCOPE PRESENTER SCOPE MVP & STATE PRESERVATION
ACTIVITY SCOPE SOME EXAMPLES #DroidConBos | @D_Lemures
MVP & STATE PRESERVATION public class MyActivity extends Activity {
@Inject MyPresenter presenter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Scope scope = openScopes(getApplication(), PresenterSingleton.class, this); Toothpick.inject(this, scope); } } SOME EXAMPLES #DroidConBos | @D_Lemures
@PresenterSingleton public class MyPresenter { String dealId; int quantity; }
PRESENTER SCOPE MVP & STATE PRESERVATION SOME EXAMPLES #DroidConBos | @D_Lemures
ACTIVITY 1 ACTIVITY 3 ACTIVITY 2 MULTI ACTIVITY FLOWS SOME
EXAMPLES #DroidConBos | @D_Lemures
ACTIVITY 1 ACTIVITY 3 ACTIVITY 2 MULTI ACTIVITY FLOWS Purchase
Flow SOME EXAMPLES #DroidConBos | @D_Lemures
ACTIVITY 1 ACTIVITY 3 ACTIVITY 2 MULTI ACTIVITY FLOWS Purchase
Flow SOME EXAMPLES #DroidConBos | @D_Lemures
ACTIVITY 1 ACTIVITY 3 ACTIVITY 2 MULTI ACTIVITY FLOWS SOME
EXAMPLES #DroidConBos | @D_Lemures
ACTIVITY 1 ACTIVITY 3 ACTIVITY 2 MULTI ACTIVITY FLOWS SOME
EXAMPLES #DroidConBos | @D_Lemures
ACTIVITY 1 ACTIVITY 3 ACTIVITY 2 MULTI ACTIVITY FLOWS SOME
EXAMPLES #DroidConBos | @D_Lemures
ACTIVITY 1 ACTIVITY 3 ACTIVITY 2 MULTI ACTIVITY FLOWS SOME
EXAMPLES #DroidConBos | @D_Lemures
APPLICATION SCOPE ACTIVITY 1 SCOPE FLOW SCOPE MULTI ACTIVITY FLOWS
SOME EXAMPLES #DroidConBos | @D_Lemures
APPLICATION SCOPE ACTIVITY 1 SCOPE FLOW SCOPE MULTI ACTIVITY FLOWS
SOME EXAMPLES #DroidConBos | @D_Lemures
APPLICATION SCOPE ACTIVITY 1 SCOPE FLOW SCOPE ACTIVITY 2 SCOPE
MULTI ACTIVITY FLOWS SOME EXAMPLES #DroidConBos | @D_Lemures
APPLICATION SCOPE ACTIVITY 1 SCOPE FLOW SCOPE ACTIVITY 3 SCOPE
ACTIVITY 2 SCOPE MULTI ACTIVITY FLOWS SOME EXAMPLES #DroidConBos | @D_Lemures
APPLICATION SCOPE FLOW SCOPE MULTI ACTIVITY FLOWS SOME EXAMPLES #DroidConBos
| @D_Lemures
APPLICATION SCOPE MULTI ACTIVITY FLOWS SOME EXAMPLES #DroidConBos | @D_Lemures
MVP & STATE PRESERVATION public class MyActivity extends Activity {
@Inject ShoppingCart shoppingCart; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Scope scope = openScopes(getApplication(), FlowSingleton.class, this); Toothpick.inject(this, scope); } } SOME EXAMPLES #DroidConBos | @D_Lemures
@FlowSingleton public class ShoppingCart { List<PurchaseItem> purchases… } FLOW SCOPE
MULTI ACTIVITY FLOWS SOME EXAMPLES #DroidConBos | @D_Lemures
UNIT TESTING WE TEST UNITS #DroidConBos | @D_Lemures
UNIT TESTING WE TEST UNITS MOCK USES WE MOCK DEPENDENCIES
#DroidConBos | @D_Lemures
UNIT TESTING public class SmoothieMachine { @Inject IceMachine iceMachine; @Inject
SyrupDispenser syrupDispenser; public void doSmoothie() { Smoothie smoothie = iceMachine.makeIce(); syrupDispenser.addSyrup(smoothie); return smoothie; } } WE WANT TO SIMULATE THE DEPENDENCIES #DroidConBos | @D_Lemures
UNIT TESTING public class TestSmoothieMachine extends EasyMockSupport { @Rule public
EasyMockRule easyMockRule = new EasyMockRule(this); @Mock IceMachine iceMachineMock; @Mock SyrupDispenser syrupDispenserMock; @Mock Smoothie smoothieMock; @Test public void doSmoothie_should_createSmoothie() { // GIVEN expect(iceMachineMock.makeIce()).andReturn(smoothieMock); syrupDispenserMock.addSyrup(smoothieMock); replayAll(); // WHEN Smoothie smoothie = smoothieMachine.doSmoothie(); // THEN assertThat(smoothie, sameInstance(smoothieMock)); verifyAll(); } } 1. CREATE MOCKS -> EASYMOCK #DroidConBos | @D_Lemures
UNIT TESTING public class TestSmoothieMachine extends EasyMockSupport { @Rule public
EasyMockRule easyMockRule = new EasyMockRule(this); @Rule public ToothPickRule toothPickRule = new ToothPickRule(this, “testScope”); @Mock IceMachine iceMachineMock; @Mock SyrupDispenser syrupDispenserMock; @Mock Smoothie smoothieMock; @Inject SmoothieMachine classUnderTest; @Test public void doSmoothie_should_createSmoothie() { // GIVEN expect(iceMachineMock.makeIce()).andReturn(smoothieMock); syrupDispenserMock.addSyrup(smoothieMock); replayAll(); // WHEN toothPickRule.inject(this); Smoothie smoothie = smoothieMachine.doSmoothie(); // THEN assertThat(smoothie, sameInstance(smoothieMock)); verifyAll(); } } 2. INJECT MOCKS -> TOOTHPICK #DroidConBos | @D_Lemures
CONCLUSION QUESTIONS ? COMMENTS ? #DroidConBos | @D_Lemures | @GrouponEng
CONCLUSION QUESTIONS ? COMMENTS ? #DroidConBos | @D_Lemures | @GrouponEng
A FRESH APPROACH TO DI TOOTHPICK https://github.com/stephanenicolas/toothpick/ +stephane nicolas @D_Lemures