Flutter Engine
The Flutter Engine
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Public Member Functions | Package Attributes | List of all members
io.flutter.embedding.engine.FlutterEngineGroupComponentTest Class Reference

Public Member Functions

void setUp ()
 
void tearDown ()
 
void listensToEngineDestruction ()
 
void canRecreateEngines ()
 
void canSpawnMoreEngines ()
 
void canCreateAndRunCustomEntrypoints ()
 
void canCreateAndRunWithCustomInitialRoute ()
 
void canCreateAndRunWithCustomEntrypointArgs ()
 
void createEngineSupportMoreParams ()
 
void spawnEngineSupportMoreParams ()
 

Package Attributes

FlutterJNI mockFlutterJNI
 
FlutterLoader mockFlutterLoader
 
FlutterEngineGroup engineGroupUnderTest
 
FlutterEngine firstEngineUnderTest
 
boolean jniAttached
 

Detailed Description

Definition at line 45 of file FlutterEngineGroupComponentTest.java.

Member Function Documentation

◆ canCreateAndRunCustomEntrypoints()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.canCreateAndRunCustomEntrypoints ( )
inline

Definition at line 179 of file FlutterEngineGroupComponentTest.java.

179 {
180 FlutterEngine firstEngine =
181 engineGroupUnderTest.createAndRunEngine(
182 ctx,
183 new DartEntrypoint(
184 FlutterInjector.instance().flutterLoader().findAppBundlePath(),
185 "other entrypoint"));
186 assertEquals(1, engineGroupUnderTest.activeEngines.size());
187 verify(mockFlutterJNI, times(1))
188 .runBundleAndSnapshotFromLibrary(
189 eq("some/path/to/flutter_assets"),
190 eq("other entrypoint"),
191 isNull(),
192 any(AssetManager.class),
193 nullable(List.class));
194 }
times
static SkISize times(const SkISize &size, float factor)
Definition AndroidCodecTest.cpp:29
eq
static bool eq(const SkM44 &a, const SkM44 &b, float tol)
Definition M44Test.cpp:18
io.flutter.embedding.engine.FlutterEngineGroup.createAndRunEngine
FlutterEngine createAndRunEngine( @NonNull Context context, @Nullable DartEntrypoint dartEntrypoint)
Definition FlutterEngineGroup.java:98
skvx::any
SIT bool any(const Vec< 1, T > &x)
Definition SkVx.h:530

◆ canCreateAndRunWithCustomEntrypointArgs()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.canCreateAndRunWithCustomEntrypointArgs ( )
inline

Definition at line 227 of file FlutterEngineGroupComponentTest.java.

227 {
228 List<String> firstDartEntrypointArgs = new ArrayList<String>();
229 FlutterEngine firstEngine =
230 engineGroupUnderTest.createAndRunEngine(
231 new FlutterEngineGroup.Options(ctx)
232 .setDartEntrypoint(mock(DartEntrypoint.class))
233 .setDartEntrypointArgs(firstDartEntrypointArgs));
234 assertEquals(1, engineGroupUnderTest.activeEngines.size());
235 verify(mockFlutterJNI, times(1))
236 .runBundleAndSnapshotFromLibrary(
237 nullable(String.class),
238 nullable(String.class),
239 isNull(),
240 any(AssetManager.class),
241 eq(firstDartEntrypointArgs));
242
243 when(mockFlutterJNI.isAttached()).thenReturn(true);
244 jniAttached = false;
245 FlutterJNI secondMockFlutterJNI = mock(FlutterJNI.class);
246 when(secondMockFlutterJNI.isAttached()).thenAnswer(invocation -> jniAttached);
247 doAnswer(invocation -> jniAttached = true).when(secondMockFlutterJNI).attachToNative();
248 doReturn(secondMockFlutterJNI)
249 .when(mockFlutterJNI)
250 .spawn(
251 nullable(String.class),
252 nullable(String.class),
253 nullable(String.class),
254 nullable(List.class));
255 List<String> secondDartEntrypointArgs = new ArrayList<String>();
256 FlutterEngine secondEngine =
257 engineGroupUnderTest.createAndRunEngine(
258 new FlutterEngineGroup.Options(ctx)
259 .setDartEntrypoint(mock(DartEntrypoint.class))
260 .setDartEntrypointArgs(secondDartEntrypointArgs));
261
262 assertEquals(2, engineGroupUnderTest.activeEngines.size());
263 verify(mockFlutterJNI, times(1))
264 .spawn(
265 nullable(String.class),
266 nullable(String.class),
267 nullable(String.class),
268 eq(secondDartEntrypointArgs));
269 }

◆ canCreateAndRunWithCustomInitialRoute()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.canCreateAndRunWithCustomInitialRoute ( )
inline

Definition at line 197 of file FlutterEngineGroupComponentTest.java.

197 {
198 when(firstEngineUnderTest.getNavigationChannel()).thenReturn(mock(NavigationChannel.class));
199
200 FlutterEngine firstEngine =
201 engineGroupUnderTest.createAndRunEngine(ctx, mock(DartEntrypoint.class), "/foo");
202 assertEquals(1, engineGroupUnderTest.activeEngines.size());
203 verify(firstEngine.getNavigationChannel(), times(1)).setInitialRoute("/foo");
204
205 when(mockFlutterJNI.isAttached()).thenReturn(true);
206 jniAttached = false;
207 FlutterJNI secondMockFlutterJNI = mock(FlutterJNI.class);
208 when(secondMockFlutterJNI.isAttached()).thenAnswer(invocation -> jniAttached);
209 doAnswer(invocation -> jniAttached = true).when(secondMockFlutterJNI).attachToNative();
210 doReturn(secondMockFlutterJNI)
211 .when(mockFlutterJNI)
212 .spawn(
213 nullable(String.class),
214 nullable(String.class),
215 nullable(String.class),
216 nullable(List.class));
217
218 FlutterEngine secondEngine =
219 engineGroupUnderTest.createAndRunEngine(ctx, mock(DartEntrypoint.class), "/bar");
220
221 assertEquals(2, engineGroupUnderTest.activeEngines.size());
222 verify(mockFlutterJNI, times(1))
223 .spawn(nullable(String.class), nullable(String.class), eq("/bar"), nullable(List.class));
224 }

◆ canRecreateEngines()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.canRecreateEngines ( )
inline

Definition at line 122 of file FlutterEngineGroupComponentTest.java.

122 {
123 FlutterEngine firstEngine =
124 engineGroupUnderTest.createAndRunEngine(ctx, mock(DartEntrypoint.class));
125 assertEquals(1, engineGroupUnderTest.activeEngines.size());
126
127 firstEngine.destroy();
128 assertEquals(0, engineGroupUnderTest.activeEngines.size());
129
130 FlutterEngine secondEngine =
131 engineGroupUnderTest.createAndRunEngine(ctx, mock(DartEntrypoint.class));
132 assertEquals(1, engineGroupUnderTest.activeEngines.size());
133 // They happen to be equal in our test since we mocked it to be so.
134 assertEquals(firstEngine, secondEngine);
135 }

◆ canSpawnMoreEngines()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.canSpawnMoreEngines ( )
inline

Definition at line 138 of file FlutterEngineGroupComponentTest.java.

138 {
139 FlutterEngine firstEngine =
140 engineGroupUnderTest.createAndRunEngine(ctx, mock(DartEntrypoint.class));
141 assertEquals(1, engineGroupUnderTest.activeEngines.size());
142
143 doReturn(mock(FlutterEngine.class))
144 .when(firstEngine)
145 .spawn(
146 any(Context.class),
147 any(DartEntrypoint.class),
148 nullable(String.class),
149 nullable(List.class),
150 any(PlatformViewsController.class),
151 any(Boolean.class),
152 any(Boolean.class));
153
154 FlutterEngine secondEngine =
155 engineGroupUnderTest.createAndRunEngine(ctx, mock(DartEntrypoint.class));
156 assertEquals(2, engineGroupUnderTest.activeEngines.size());
157
158 firstEngine.destroy();
159 assertEquals(1, engineGroupUnderTest.activeEngines.size());
160
161 // Now the second spawned engine is the only one left and it will be called to spawn the next
162 // engine in the chain.
163 when(secondEngine.spawn(
164 any(Context.class),
165 any(DartEntrypoint.class),
166 nullable(String.class),
167 nullable(List.class),
168 any(PlatformViewsController.class),
169 any(Boolean.class),
170 any(Boolean.class)))
171 .thenReturn(mock(FlutterEngine.class));
172
173 FlutterEngine thirdEngine =
174 engineGroupUnderTest.createAndRunEngine(ctx, mock(DartEntrypoint.class));
175 assertEquals(2, engineGroupUnderTest.activeEngines.size());
176 }

◆ createEngineSupportMoreParams()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.createEngineSupportMoreParams ( )
inline

Definition at line 272 of file FlutterEngineGroupComponentTest.java.

272 {
273 // Create a new FlutterEngineGroup because the first engine created in engineGroupUnderTest was
274 // changed to firstEngineUnderTest in `setUp()`, so can't use it to validate params.
275 FlutterEngineGroup engineGroup = new FlutterEngineGroup(ctx);
276
277 PlatformViewsController controller = new PlatformViewsController();
278 boolean waitForRestorationData = true;
279 boolean automaticallyRegisterPlugins = true;
280
281 when(FlutterInjector.instance().flutterLoader().automaticallyRegisterPlugins())
282 .thenReturn(true);
283 assertTrue(FlutterInjector.instance().flutterLoader().automaticallyRegisterPlugins());
284 assertEquals(0, GeneratedPluginRegistrant.getRegisteredEngines().size());
285
286 FlutterEngine firstEngine =
287 engineGroup.createAndRunEngine(
288 new FlutterEngineGroup.Options(ctx)
289 .setDartEntrypoint(mock(DartEntrypoint.class))
290 .setPlatformViewsController(controller)
291 .setWaitForRestorationData(waitForRestorationData)
292 .setAutomaticallyRegisterPlugins(automaticallyRegisterPlugins));
293
294 assertEquals(1, GeneratedPluginRegistrant.getRegisteredEngines().size());
295 assertEquals(controller, firstEngine.getPlatformViewsController());
296 assertEquals(
297 waitForRestorationData, firstEngine.getRestorationChannel().waitForRestorationData);
298 }

◆ listensToEngineDestruction()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.listensToEngineDestruction ( )
inline

Definition at line 112 of file FlutterEngineGroupComponentTest.java.

112 {
113 FlutterEngine firstEngine =
114 engineGroupUnderTest.createAndRunEngine(ctx, mock(DartEntrypoint.class));
115 assertEquals(1, engineGroupUnderTest.activeEngines.size());
116
117 firstEngine.destroy();
118 assertEquals(0, engineGroupUnderTest.activeEngines.size());
119 }

◆ setUp()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.setUp ( )
inline

Definition at line 54 of file FlutterEngineGroupComponentTest.java.

54 {
55 FlutterInjector.reset();
56
57 MockitoAnnotations.openMocks(this);
58 jniAttached = false;
59 when(mockFlutterJNI.isAttached()).thenAnswer(invocation -> jniAttached);
60 doAnswer(invocation -> jniAttached = true).when(mockFlutterJNI).attachToNative();
61 GeneratedPluginRegistrant.clearRegisteredEngines();
62
63 when(mockFlutterLoader.findAppBundlePath()).thenReturn("some/path/to/flutter_assets");
64
65 FlutterJNI.Factory jniFactory =
66 new FlutterJNI.Factory() {
67 @Override
68 public FlutterJNI provideFlutterJNI() {
69 // The default implementation is that `new FlutterJNI()` will report errors when
70 // creating the engine later,
71 // Change mockFlutterJNI to the default so that we can create the engine directly in
72 // later tests
73 return mockFlutterJNI;
74 }
75 };
76
77 FlutterInjector.setInstance(
78 new FlutterInjector.Builder()
79 .setFlutterLoader(mockFlutterLoader)
80 .setFlutterJNIFactory(jniFactory)
81 .build());
82
83 firstEngineUnderTest =
84 spy(
85 new FlutterEngine(
86 ctx,
87 mock(FlutterLoader.class),
88 mockFlutterJNI,
89 /*dartVmArgs=*/ new String[] {},
90 /*automaticallyRegisterPlugins=*/ false));
91 engineGroupUnderTest =
92 new FlutterEngineGroup(ctx) {
93 @Override
94 FlutterEngine createEngine(
95 Context context,
96 PlatformViewsController platformViewsController,
97 boolean automaticallyRegisterPlugins,
98 boolean waitForRestorationData) {
99 return firstEngineUnderTest;
100 }
101 };
102 }

◆ spawnEngineSupportMoreParams()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.spawnEngineSupportMoreParams ( )
inline

Definition at line 301 of file FlutterEngineGroupComponentTest.java.

301 {
302 FlutterEngine firstEngine =
303 engineGroupUnderTest.createAndRunEngine(
304 new FlutterEngineGroup.Options(ctx).setDartEntrypoint(mock(DartEntrypoint.class)));
305 assertEquals(1, engineGroupUnderTest.activeEngines.size());
306 verify(mockFlutterJNI, times(1))
307 .runBundleAndSnapshotFromLibrary(
308 nullable(String.class),
309 nullable(String.class),
310 isNull(),
311 any(AssetManager.class),
312 nullable(List.class));
313
314 when(mockFlutterJNI.isAttached()).thenReturn(true);
315 jniAttached = false;
316 FlutterJNI secondMockFlutterJNI = mock(FlutterJNI.class);
317 when(secondMockFlutterJNI.isAttached()).thenAnswer(invocation -> jniAttached);
318 doAnswer(invocation -> jniAttached = true).when(secondMockFlutterJNI).attachToNative();
319 doReturn(secondMockFlutterJNI)
320 .when(mockFlutterJNI)
321 .spawn(
322 nullable(String.class),
323 nullable(String.class),
324 nullable(String.class),
325 nullable(List.class));
326
327 PlatformViewsController controller = new PlatformViewsController();
328 boolean waitForRestorationData = false;
329 boolean automaticallyRegisterPlugins = false;
330
331 when(FlutterInjector.instance().flutterLoader().automaticallyRegisterPlugins())
332 .thenReturn(true);
333 assertTrue(FlutterInjector.instance().flutterLoader().automaticallyRegisterPlugins());
334 assertEquals(0, GeneratedPluginRegistrant.getRegisteredEngines().size());
335
336 FlutterEngine secondEngine =
337 engineGroupUnderTest.createAndRunEngine(
338 new FlutterEngineGroup.Options(ctx)
339 .setDartEntrypoint(mock(DartEntrypoint.class))
340 .setWaitForRestorationData(waitForRestorationData)
341 .setPlatformViewsController(controller)
342 .setAutomaticallyRegisterPlugins(automaticallyRegisterPlugins));
343
344 assertEquals(
345 waitForRestorationData, secondEngine.getRestorationChannel().waitForRestorationData);
346 assertEquals(controller, secondEngine.getPlatformViewsController());
347 assertEquals(0, GeneratedPluginRegistrant.getRegisteredEngines().size());
348 }

◆ tearDown()

void io.flutter.embedding.engine.FlutterEngineGroupComponentTest.tearDown ( )
inline

Definition at line 105 of file FlutterEngineGroupComponentTest.java.

105 {
106 GeneratedPluginRegistrant.clearRegisteredEngines();
107 engineGroupUnderTest = null;
108 firstEngineUnderTest = null;
109 }

Member Data Documentation

◆ engineGroupUnderTest

FlutterEngineGroup io.flutter.embedding.engine.FlutterEngineGroupComponentTest.engineGroupUnderTest
package

Definition at line 49 of file FlutterEngineGroupComponentTest.java.

◆ firstEngineUnderTest

FlutterEngine io.flutter.embedding.engine.FlutterEngineGroupComponentTest.firstEngineUnderTest
package

Definition at line 50 of file FlutterEngineGroupComponentTest.java.

◆ jniAttached

boolean io.flutter.embedding.engine.FlutterEngineGroupComponentTest.jniAttached
package

Definition at line 51 of file FlutterEngineGroupComponentTest.java.

◆ mockFlutterJNI

FlutterJNI io.flutter.embedding.engine.FlutterEngineGroupComponentTest.mockFlutterJNI
package

Definition at line 47 of file FlutterEngineGroupComponentTest.java.

◆ mockFlutterLoader

FlutterLoader io.flutter.embedding.engine.FlutterEngineGroupComponentTest.mockFlutterLoader
package

Definition at line 48 of file FlutterEngineGroupComponentTest.java.

The documentation for this class was generated from the following file:
Generated on Fri Apr 26 2024 06:21:50 for Flutter Engine by doxygen 1.9.8