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FlutterEnginePlatformViewTest.mm
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <memory>
6 #define FML_USED_ON_EMBEDDER
7
8 #import <OCMock/OCMock.h>
9 #import <XCTest/XCTest.h>
10
11 #include "flutter/fml/message_loop.h"
12 #import "flutter/shell/platform/darwin/common/framework/Headers/FlutterMacros.h"
13 #import "flutter/shell/platform/darwin/ios/framework/Source/FlutterEngine_Internal.h"
14 #import "flutter/shell/platform/darwin/ios/platform_view_ios.h"
15
16 FLUTTER_ASSERT_ARC
17
18 namespace flutter {
19 namespace {
20
21 class FakeDelegate : public PlatformView::Delegate {
22 public:
23 void OnPlatformViewCreated(std::unique_ptr<Surface> surface) override {}
24 void OnPlatformViewDestroyed() override {}
25 void OnPlatformViewScheduleFrame() override {}
26 void OnPlatformViewAddView(int64_t view_id,
27 const ViewportMetrics& viewport_metrics,
28 AddViewCallback callback) override {}
29 void OnPlatformViewRemoveView(int64_t view_id, RemoveViewCallback callback) override {}
30 void OnPlatformViewSetNextFrameCallback(const fml::closure& closure) override {}
31 void OnPlatformViewSetViewportMetrics(int64_t view_id, const ViewportMetrics& metrics) override {}
32 const flutter::Settings& OnPlatformViewGetSettings() const override { return settings_; }
33 void OnPlatformViewDispatchPlatformMessage(std::unique_ptr<PlatformMessage> message) override {}
34 void OnPlatformViewDispatchPointerDataPacket(std::unique_ptr<PointerDataPacket> packet) override {
35 }
36 void OnPlatformViewDispatchSemanticsAction(int32_t id,
37 SemanticsAction action,
38 fml::MallocMapping args) override {}
39 void OnPlatformViewSetSemanticsEnabled(bool enabled) override {}
40 void OnPlatformViewSetAccessibilityFeatures(int32_t flags) override {}
41 void OnPlatformViewRegisterTexture(std::shared_ptr<Texture> texture) override {}
42 void OnPlatformViewUnregisterTexture(int64_t texture_id) override {}
43 void OnPlatformViewMarkTextureFrameAvailable(int64_t texture_id) override {}
44
45 void LoadDartDeferredLibrary(intptr_t loading_unit_id,
46 std::unique_ptr<const fml::Mapping> snapshot_data,
47 std::unique_ptr<const fml::Mapping> snapshot_instructions) override {
48 }
49 void LoadDartDeferredLibraryError(intptr_t loading_unit_id,
50 const std::string error_message,
51 bool transient) override {}
52 void UpdateAssetResolverByType(std::unique_ptr<AssetResolver> updated_asset_resolver,
53 AssetResolver::AssetResolverType type) override {}
54
55 flutter::Settings settings_;
56 };
57
58 } // namespace
59 } // namespace flutter
60
61 @interface FlutterEnginePlatformViewTest : XCTestCase
62 @end
63
64 @implementation FlutterEnginePlatformViewTest
65 std::unique_ptr<flutter::PlatformViewIOS> platform_view;
66 std::unique_ptr<fml::WeakPtrFactory<flutter::PlatformView>> weak_factory;
67 flutter::FakeDelegate fake_delegate;
68
69 - (void)setUp {
70 fml::MessageLoop::EnsureInitializedForCurrentThread();
71 auto thread_task_runner = fml::MessageLoop::GetCurrent().GetTaskRunner();
72 auto sync_switch = std::make_shared<fml::SyncSwitch>();
73 flutter::TaskRunners runners(/*label=*/self.name.UTF8String,
74 /*platform=*/thread_task_runner,
75 /*raster=*/thread_task_runner,
76 /*ui=*/thread_task_runner,
77 /*io=*/thread_task_runner);
78 platform_view = std::make_unique<flutter::PlatformViewIOS>(
79 /*delegate=*/fake_delegate,
80 /*rendering_api=*/fake_delegate.settings_.enable_impeller
81 ? flutter::IOSRenderingAPI::kMetal
82 : flutter::IOSRenderingAPI::kSoftware,
83 /*platform_views_controller=*/nil,
84 /*task_runners=*/runners,
85 /*worker_task_runner=*/nil,
86 /*is_gpu_disabled_sync_switch=*/sync_switch);
87 weak_factory = std::make_unique<fml::WeakPtrFactory<flutter::PlatformView>>(platform_view.get());
88 }
89
90 - (void)tearDown {
91 weak_factory.reset();
92 platform_view.reset();
93 }
94
95 - (fml::WeakPtr<flutter::PlatformView>)platformViewReplacement {
96 return weak_factory->GetWeakPtr();
97 }
98
99 - (void)testCallsNotifyLowMemory {
100 FlutterEngine* engine = [[FlutterEngine alloc] initWithName:@"tester"];
101 XCTAssertNotNil(engine);
102 id mockEngine = OCMPartialMock(engine);
103 OCMStub([mockEngine notifyLowMemory]);
104 OCMStub([mockEngine iosPlatformView]).andReturn(platform_view.get());
105
106 [engine setViewController:nil];
107 OCMVerify([mockEngine notifyLowMemory]);
108 OCMReject([mockEngine notifyLowMemory]);
109
110 XCTNSNotificationExpectation* memoryExpectation = [[XCTNSNotificationExpectation alloc]
111 initWithName:UIApplicationDidReceiveMemoryWarningNotification];
112 [[NSNotificationCenter defaultCenter]
113 postNotificationName:UIApplicationDidReceiveMemoryWarningNotification
114 object:nil];
115 [self waitForExpectations:@[ memoryExpectation ] timeout:5.0];
116 OCMVerify([mockEngine notifyLowMemory]);
117 OCMReject([mockEngine notifyLowMemory]);
118
119 XCTNSNotificationExpectation* backgroundExpectation = [[XCTNSNotificationExpectation alloc]
120 initWithName:UIApplicationDidEnterBackgroundNotification];
121 [[NSNotificationCenter defaultCenter]
122 postNotificationName:UIApplicationDidEnterBackgroundNotification
123 object:nil];
124 [self waitForExpectations:@[ backgroundExpectation ] timeout:5.0];
125
126 OCMVerify([mockEngine notifyLowMemory]);
127 }
128
129 @end
FlutterEnginePlatformViewTest
Definition: FlutterEnginePlatformViewTest.mm:61
FlutterEngine
Definition: FlutterEngine.h:61
FakeDelegate
Definition: FlutterViewTest.mm:11
FlutterEngine_Internal.h
FlutterMacros.h
platform_view
std::unique_ptr< flutter::PlatformViewIOS > platform_view
Definition: FlutterEnginePlatformViewTest.mm:65
flutter
Definition: accessibility_bridge.h:28
fake_delegate
flutter::FakeDelegate fake_delegate
Definition: FlutterEnginePlatformViewTest.mm:67
settings_
flutter::Settings settings_
Definition: FlutterEnginePlatformViewTest.mm:55
flutter::IOSRenderingAPI::kMetal
@ kMetal
weak_factory
std::unique_ptr< fml::WeakPtrFactory< flutter::PlatformView > > weak_factory
Definition: FlutterEnginePlatformViewTest.mm:66
engine
id engine
Definition: FlutterTextInputPluginTest.mm:89
platform_view_ios.h
texture_id
int64_t texture_id
Definition: texture_registrar_unittests.cc:24
flutter::IOSRenderingAPI::kSoftware
@ kSoftware
FLUTTER_ASSERT_ARC
Definition: FlutterChannelKeyResponder.mm:13