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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/framework/Source/FlutterEngine_Test.h"
15 #import "flutter/shell/platform/darwin/ios/platform_view_ios.h"
16
17 FLUTTER_ASSERT_ARC
18
19 namespace flutter {
20 namespace {
21
22 class FakeDelegate : public PlatformView::Delegate {
23 public:
24 void OnPlatformViewCreated(std::unique_ptr<Surface> surface) override {}
25 void OnPlatformViewDestroyed() override {}
26 void OnPlatformViewScheduleFrame() override {}
27 void OnPlatformViewAddView(int64_t view_id,
28 const ViewportMetrics& viewport_metrics,
29 AddViewCallback callback) override {}
30 void OnPlatformViewRemoveView(int64_t view_id, RemoveViewCallback callback) override {}
31 void OnPlatformViewSendViewFocusEvent(const ViewFocusEvent& event) override {}
32 void OnPlatformViewSetNextFrameCallback(const fml::closure& closure) override {}
33 void OnPlatformViewSetViewportMetrics(int64_t view_id, const ViewportMetrics& metrics) override {}
34 const flutter::Settings& OnPlatformViewGetSettings() const override { return settings_; }
35 void OnPlatformViewDispatchPlatformMessage(std::unique_ptr<PlatformMessage> message) override {}
36 void OnPlatformViewDispatchPointerDataPacket(std::unique_ptr<PointerDataPacket> packet) override {
37 }
38 void OnPlatformViewDispatchSemanticsAction(int64_t view_id,
39 int32_t node_id,
40 SemanticsAction action,
41 fml::MallocMapping args) override {}
42 void OnPlatformViewSetSemanticsEnabled(bool enabled) override {}
43 void OnPlatformViewSetAccessibilityFeatures(int32_t flags) override {}
44 void OnPlatformViewRegisterTexture(std::shared_ptr<Texture> texture) override {}
45 void OnPlatformViewUnregisterTexture(int64_t texture_id) override {}
46 void OnPlatformViewMarkTextureFrameAvailable(int64_t texture_id) override {}
47
48 void LoadDartDeferredLibrary(intptr_t loading_unit_id,
49 std::unique_ptr<const fml::Mapping> snapshot_data,
50 std::unique_ptr<const fml::Mapping> snapshot_instructions) override {
51 }
52 void LoadDartDeferredLibraryError(intptr_t loading_unit_id,
53 const std::string error_message,
54 bool transient) override {}
55 void UpdateAssetResolverByType(std::unique_ptr<AssetResolver> updated_asset_resolver,
56 AssetResolver::AssetResolverType type) override {}
57
58 flutter::Settings settings_;
59 };
60
61 } // namespace
62 } // namespace flutter
63
64 @interface FlutterEnginePlatformViewTest : XCTestCase
65 @end
66
67 @implementation FlutterEnginePlatformViewTest
68 std::unique_ptr<flutter::PlatformViewIOS> platform_view;
69 std::unique_ptr<fml::WeakPtrFactory<flutter::PlatformView>> weak_factory;
70 flutter::FakeDelegate fake_delegate;
71
72 - (void)setUp {
73 fml::MessageLoop::EnsureInitializedForCurrentThread();
74 auto thread_task_runner = fml::MessageLoop::GetCurrent().GetTaskRunner();
75 auto sync_switch = std::make_shared<fml::SyncSwitch>();
76 flutter::TaskRunners runners(/*label=*/self.name.UTF8String,
77 /*platform=*/thread_task_runner,
78 /*raster=*/thread_task_runner,
79 /*ui=*/thread_task_runner,
80 /*io=*/thread_task_runner);
81 platform_view = std::make_unique<flutter::PlatformViewIOS>(
82 /*delegate=*/fake_delegate,
83 /*rendering_api=*/fake_delegate.settings_.enable_impeller
84 ? flutter::IOSRenderingAPI::kMetal
85 : flutter::IOSRenderingAPI::kSoftware,
86 /*platform_views_controller=*/nil,
87 /*task_runners=*/runners,
88 /*worker_task_runner=*/nil,
89 /*is_gpu_disabled_sync_switch=*/sync_switch);
90 weak_factory = std::make_unique<fml::WeakPtrFactory<flutter::PlatformView>>(platform_view.get());
91 }
92
93 - (void)tearDown {
94 weak_factory.reset();
95 platform_view.reset();
96 }
97
98 - (fml::WeakPtr<flutter::PlatformView>)platformViewReplacement {
99 return weak_factory->GetWeakPtr();
100 }
101
102 - (void)testCallsNotifyLowMemory {
103 FlutterEngine* engine = [[FlutterEngine alloc] initWithName:@"tester"];
104 XCTAssertNotNil(engine);
105 id mockEngine = OCMPartialMock(engine);
106 OCMStub([mockEngine notifyLowMemory]);
107 OCMStub([mockEngine platformView]).andReturn(platform_view.get());
108
109 [engine setViewController:nil];
110 OCMVerify([mockEngine notifyLowMemory]);
111 OCMReject([mockEngine notifyLowMemory]);
112
113 XCTNSNotificationExpectation* memoryExpectation = [[XCTNSNotificationExpectation alloc]
114 initWithName:UIApplicationDidReceiveMemoryWarningNotification];
115 [[NSNotificationCenter defaultCenter]
116 postNotificationName:UIApplicationDidReceiveMemoryWarningNotification
117 object:nil];
118 [self waitForExpectations:@[ memoryExpectation ] timeout:5.0];
119 OCMVerify([mockEngine notifyLowMemory]);
120 OCMReject([mockEngine notifyLowMemory]);
121
122 XCTNSNotificationExpectation* backgroundExpectation = [[XCTNSNotificationExpectation alloc]
123 initWithName:UIApplicationDidEnterBackgroundNotification];
124 [[NSNotificationCenter defaultCenter]
125 postNotificationName:UIApplicationDidEnterBackgroundNotification
126 object:nil];
127 [self waitForExpectations:@[ backgroundExpectation ] timeout:5.0];
128
129 OCMVerify([mockEngine notifyLowMemory]);
130 }
131
132 @end
FlutterEngine_Internal.h
FlutterEngine_Test.h
settings_
flutter::Settings settings_
Definition: FlutterEnginePlatformViewTest.mm:58
fake_delegate
flutter::FakeDelegate fake_delegate
Definition: FlutterEnginePlatformViewTest.mm:70
platform_view
std::unique_ptr< flutter::PlatformViewIOS > platform_view
Definition: FlutterEnginePlatformViewTest.mm:68
weak_factory
std::unique_ptr< fml::WeakPtrFactory< flutter::PlatformView > > weak_factory
Definition: FlutterEnginePlatformViewTest.mm:69
FlutterMacros.h
engine
id engine
Definition: FlutterTextInputPluginTest.mm:92
FakeDelegate
Definition: FlutterViewTest.mm:11
FlutterEngine
Definition: FlutterEngine.h:61
FlutterEnginePlatformViewTest
Definition: FlutterEnginePlatformViewTest.mm:65
FLUTTER_ASSERT_ARC
Definition: FlutterChannelKeyResponder.mm:13
flutter
Definition: accessibility_bridge.h:26
flutter::IOSRenderingAPI::kMetal
@ kMetal
flutter::IOSRenderingAPI::kSoftware
@ kSoftware
fml
Definition: profiler_metrics_ios.mm:41
platform_view_ios.h
texture_id
int64_t texture_id
Definition: texture_registrar_unittests.cc:24