Add a FlutterEngineRule (JUnit TestRule) and use it in FlutterRendererTest
#53361
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reidbaker
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Jun 13, 2024
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I think we can use this rule to test backgrounding and memory trim functions. |
reidbaker
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Jun 13, 2024
| * Prepares and returns a {@link FlutterEngine} and {@link Intent} primed with an engine for tests. | ||
| */ | ||
| public final class FlutterEngineRule extends TestWatcher { | ||
| private static final Context ctx = ApplicationProvider.getApplicationContext(); |
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Error: Do not place Android context classes in static fields; this is a memory leak [StaticFieldLeak]
private static final Context ctx = ApplicationProvider.getApplicationContext();
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Friendly ping @gmackall, I'd like to get your thoughts before merging! |
gmackall
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Jun 13, 2024
| @@ -286,6 284,7 @@ public void itConvertsDisplayFeatureArrayToPrimitiveArrays() { | |||
| new Rect(50, 60, 70, 80), FlutterRenderer.DisplayFeatureType.CUTOUT)); | |||
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| // Execute the behavior under test. | |||
| clearInvocations(fakeFlutterJNI); | |||
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What changed to make a call to clearInvocations necessary, but just in this test? (the docs say to avoid this method at all costs so I just want to know why we need it here)
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That's a good question.
The tl;dr is because calls to setViewportMetrics happen ambiently in the background with the new setup. I could change this back to creating the renderer manually (not created via engine) and avoid the need for this call. Wdut?
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I talked to Gray offline and decided it would be more work to document why this is OK than just not use it.
Resolved!
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auto label is removed for flutter/engine/53361, due to - The status or check suite Linux linux_unopt has failed. Please fix the issues identified (or deflake) before re-applying this label.
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…150290) flutter/engine@8167dff...9779c27 2024-06-15 [email protected] Manual roll of Dart SDK from e90b0a53e058 to dca20ab646c5 (flutter/engine#53410) 2024-06-15 [email protected] Update "Vulnerability scanning" to add the actions: read permission. (flutter/engine#53409) 2024-06-14 [email protected] Roll Skia from 136c7cc18d1e to 6f6b45e1faea (3 revisions) (flutter/engine#53408) 2024-06-14 30870216 [email protected] [Impeller] moved blur to unrotated local space, started respecting `respect_ctm` flag (flutter/engine#53377) 2024-06-14 [email protected] Roll Skia from 5560041fcfc0 to 136c7cc18d1e (4 revisions) (flutter/engine#53406) 2024-06-14 [email protected] Roll web_ui dependencies to enable the next roll of the Dart SDK (flutter/engine#53399) 2024-06-14 [email protected] Hack to prevent Safari from being backgrounded during unit tests. (flutter/engine#53402) 2024-06-14 [email protected] Manual roll Dart SDK from cabe65966815 to e90b0a53e058 (1 revision) (flutter/engine#53404) 2024-06-14 [email protected] Roll Skia from de1a50046289 to 5560041fcfc0 (1 revision) (flutter/engine#53393) 2024-06-14 [email protected] Manual roll Dart SDK from 115a9a2b26cd to cabe65966815 (1 revision) (flutter/engine#53390) 2024-06-14 [email protected] Roll Skia from 3bebb0602780 to de1a50046289 (3 revisions) (flutter/engine#53388) 2024-06-14 [email protected] Roll Skia from d248a9f99ff5 to 3bebb0602780 (1 revision) (flutter/engine#53387) 2024-06-14 [email protected] Roll Fuchsia Linux SDK from pGxbL7JoNb3yAYFw4... to BkYg1UB1jdbAZv3gA... (flutter/engine#53386) 2024-06-14 [email protected] [Impeller] restore accidentally deleted Cap/Join benchmarks (flutter/engine#53385) 2024-06-13 [email protected] Add a `FlutterEngineRule` (JUnit `TestRule`) and use it in `FlutterRendererTest` (flutter/engine#53361) 2024-06-13 [email protected] Roll Skia from b21429b0ea78 to d248a9f99ff5 (2 revisions) (flutter/engine#53383) 2024-06-13 [email protected] Roll Skia from 40bdee9eedd6 to b21429b0ea78 (3 revisions) (flutter/engine#53382) 2024-06-13 [email protected] [DisplayList] cull clip operations that can be trivially and safely ignored (flutter/engine#53367) 2024-06-13 [email protected] Roll Skia from 0f47a9333edb to 40bdee9eedd6 (2 revisions) (flutter/engine#53381) 2024-06-13 [email protected] Roll Dart SDK from aa2265e5a192 to 115a9a2b26cd (5 revisions) (flutter/engine#53380) 2024-06-13 [email protected] Roll Skia from bf5a0e0dbf41 to 0f47a9333edb (2 revisions) (flutter/engine#53378) Also rolling transitive DEPS: fuchsia/sdk/core/linux-amd64 from pGxbL7JoNb3y to BkYg1UB1jdbA If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Please CC [email protected],[email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/ doc/main/autoroll/README.md
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In #53280, I'm adding lifecycle-aware methods to
SurfaceProducer.That means, in order to test that it WAI, we'll need to be running in a simulated activity, and be able to switch scenario states (i.e. to
RESUMED). This was mentioned as well in flutter/flutter#133151 as being something we want to do.This PR adds a
FlutterEngineRule, which allows the creation of a "real"FlutterEngineand anIntentthat can powerAndroidScenarioRule<FlutterActivity>. I felt bad doing all of this work for a single@Test, so I also refactored the rest of the file and cleaned things up a bit.That said, I'm happy to revert or make changes if we liked how things were setup before.