io.flutter.embedding.engine.renderer.FlutterEngineRule Class Reference

Inheritance diagram for io.flutter.embedding.engine.renderer.FlutterEngineRule:

Protected Member Functions
void	starting (Description description)
void	finished (Description description)

Package Functions
FlutterJNI	getFlutterJNI ()
FlutterEngine	getFlutterEngine ()
void	setJniIsAttached (boolean isAttached)
Intent	makeIntent ()

Detailed Description

Prepares and returns a FlutterEngine and Intent primed with an engine for tests.

Definition at line 20 of file FlutterEngineRule.java.

Member Function Documentation

finished()

void io.flutter.embedding.engine.renderer.FlutterEngineRule.finished ( Description  description )

inlineprotected

Definition at line 45 of file FlutterEngineRule.java.

                                                   {
    FlutterEngineCache.getInstance().clear();
  }

getFlutterEngine()

FlutterEngine io.flutter.embedding.engine.renderer.FlutterEngineRule.getFlutterEngine ( )

inlinepackage

Returns a pre-configured engine.

Returns

flutter engine using the mock provided by {getFlutterJNI()}.

Definition at line 63 of file FlutterEngineRule.java.

                                   {
    return this.flutterEngine;
  }

getFlutterJNI()

FlutterJNI io.flutter.embedding.engine.renderer.FlutterEngineRule.getFlutterJNI ( )

inlinepackage

Returns a Mockito-mocked version of FlutterJNI.

Returns

an instance that is already considered attached.

Definition at line 54 of file FlutterEngineRule.java.

                             {
    return this.flutterJNI;
  }

makeIntent()

Intent io.flutter.embedding.engine.renderer.FlutterEngineRule.makeIntent ( )

inlinepackage

Creates an intent with FlutterEngine instance already provided.

Returns

intent, i.e. to use with androidx.test.ext.junit.rules.ActivityScenarioRule.

Definition at line 81 of file FlutterEngineRule.java.

                      {
    return FlutterActivity.withCachedEngine(cachedEngineId).build(ctx);
  }

setJniIsAttached()

void io.flutter.embedding.engine.renderer.FlutterEngineRule.setJniIsAttached ( boolean  isAttached )

inlinepackage

Sets what FlutterJNI#isAttached() returns. If not invoked, defaults to true.

Parameters

isAttached

whether to consider JNI attached.

Definition at line 72 of file FlutterEngineRule.java.

                                            {
    this.jniIsAttached = isAttached;
  }

starting()

void io.flutter.embedding.engine.renderer.FlutterEngineRule.starting ( Description  description )

inlineprotected

Definition at line 28 of file FlutterEngineRule.java.

                                                   {
    // Setup mock JNI.
    flutterJNI = mock(FlutterJNI.class);
    when(flutterJNI.isAttached()).thenAnswer(i -> jniIsAttached);
 
    // We will not try to load plugins in these tests.
    FlutterLoader mockFlutterLoader = mock(FlutterLoader.class);
    when(mockFlutterLoader.automaticallyRegisterPlugins()).thenReturn(false);
 
    // Create an engine.
    flutterEngine = new FlutterEngine(ctx, mockFlutterLoader, flutterJNI);
 
    // Place it in the engine cache.
    FlutterEngineCache.getInstance().put(cachedEngineId, flutterEngine);
  }

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The documentation for this class was generated from the following file:

• shell/platform/android/test/io/flutter/embedding/engine/renderer/FlutterEngineRule.java