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[camera] Remove OCMock from AvailableCamerasTests, CameraOrientationT…
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…ests and ThreadSafeEventChannelTests (#8363)

Follow-up on #8342. This should be merged after #8351

- Removes OCMock dependency in `AvailableCamerasTests.m`, `CameraOrientationTests.m` and `ThreadSafeEventChannelTests.m`
- Introduces new protocol wrappers to enable mocking `FLTEventChannel` and `FLTCameraDeviceDiscovering`
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@mchudy
mchudy authored Feb 7, 2025
1 parent cb18978 commit 625023a
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4 changes: 4 additions & 0 deletions packages/camera/camera_avfoundation/CHANGELOG.md
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## 0.9.18+2

* Refactors implementations to reduce usage of OCMock in internal testing.

## 0.9.18+1

* Refactors implementations to reduce usage of OCMock in internal testing.
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68 changes: 56 additions & 12 deletions packages/camera/camera_avfoundation/example/ios/Runner.xcodeproj/project.pbxproj
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Expand Up @@ -19,10 +19,16 @@
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7F29EB3F2D281C6D00740257 /* Mocks */,
7D5FCCD32AEF9D0200FB7108 /* CameraSettingsTests.m */,
03BB766A2665316900CE5A93 /* CameraFocusTests.m */,
7FA99E582D22C75300582559 /* CameraExposureTests.m */,
Expand Down Expand Up @@ -173,6 +188,29 @@
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children = (
Expand Down Expand Up @@ -463,21 +501,27 @@
7F56D0382D1EDDCE005676A5 /* CameraPermissionTests.m in Sources */,
E0F95E3D27A32AB900699390 /* CameraPropertiesTests.m in Sources */,
03BB766B2665316900CE5A93 /* CameraFocusTests.m in Sources */,
7F87E8022D01FD6F00A3549C /* MockCaptureDeviceController.m in Sources */,
7D5FCCD42AEF9D0200FB7108 /* CameraSettingsTests.m in Sources */,
7F8FD2292D4BFABF001AF2C1 /* MockGlobalEventApi.m in Sources */,
7FA99E592D22C75300582559 /* CameraExposureTests.m in Sources */,
E487C86026D686A10034AC92 /* CameraPreviewPauseTests.m in Sources */,
7F87E80C2D0325D900A3549C /* MockDeviceOrientationProvider.m in Sources */,
E071CF7427B31DE4006EF3BA /* FLTCamSampleBufferTests.m in Sources */,
7F29EB222D269ED500740257 /* MockEventChannel.m in Sources */,
7F8FD22F2D4D0B88001AF2C1 /* MockFlutterBinaryMessenger.m in Sources */,
E04F108627A87CA600573D0C /* FLTSavePhotoDelegateTests.m in Sources */,
43ED1537282570DE00EB00DE /* AvailableCamerasTest.m in Sources */,
E0CDBAC227CD9729002561D9 /* CameraTestUtils.m in Sources */,
334733EA2668111C00DCC49E /* CameraOrientationTests.m in Sources */,
CEF6611A2B5E36A500D33FD4 /* CameraSessionPresetsTests.m in Sources */,
E032F250279F5E94009E9028 /* CameraCaptureSessionQueueRaceConditionTests.m in Sources */,
7F29EB292D26A59000740257 /* MockCameraDeviceDiscoverer.m in Sources */,
788A065A27B0E02900533D74 /* StreamingTest.m in Sources */,
E0C6E2022770F01A00EA6AA3 /* ThreadSafeEventChannelTests.m in Sources */,
7F29EB412D281C7E00740257 /* MockCaptureSession.m in Sources */,
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7FCEDD352D43C2B900EA1CA8 /* MockDeviceOrientationProvider.m in Sources */,
7FCEDD362D43C2B900EA1CA8 /* MockCaptureDevice.m in Sources */,
7F8FD22C2D4D07DD001AF2C1 /* MockFlutterTextureRegistry.m in Sources */,
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runOnlyForDeploymentPostprocessing = 0;
};
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104 changes: 67 additions & 37 deletions packages/camera/camera_avfoundation/example/ios/RunnerTests/AvailableCamerasTest.m
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Expand Up @@ -8,33 +8,57 @@
#endif
@import XCTest;
@import AVFoundation;
#import <OCMock/OCMock.h>

#import "MockCameraDeviceDiscoverer.h"
#import "MockCaptureDevice.h"
#import "MockCaptureSession.h"
#import "MockFlutterBinaryMessenger.h"
#import "MockFlutterTextureRegistry.h"
#import "MockGlobalEventApi.h"

@interface AvailableCamerasTest : XCTestCase

@end

@implementation AvailableCamerasTest

- (CameraPlugin *)createCameraPluginWithDeviceDiscoverer:
(MockCameraDeviceDiscoverer *)deviceDiscoverer {
return [[CameraPlugin alloc] initWithRegistry:[[MockFlutterTextureRegistry alloc] init]
messenger:[[MockFlutterBinaryMessenger alloc] init]
globalAPI:[[MockGlobalEventApi alloc] init]
deviceDiscoverer:deviceDiscoverer
deviceFactory:^NSObject<FLTCaptureDevice> *(NSString *name) {
return [[MockCaptureDevice alloc] init];
}
captureSessionFactory:^NSObject<FLTCaptureSession> * {
return [[MockCaptureSession alloc] init];
}
captureDeviceInputFactory:[[MockCaptureDeviceInputFactory alloc] init]];
}

- (void)testAvailableCamerasShouldReturnAllCamerasOnMultiCameraIPhone {
CameraPlugin *camera = [[CameraPlugin alloc] initWithRegistry:nil messenger:nil];
MockCameraDeviceDiscoverer *mockDeviceDiscoverer = [[MockCameraDeviceDiscoverer alloc] init];
CameraPlugin *cameraPlugin = [self createCameraPluginWithDeviceDiscoverer:mockDeviceDiscoverer];

XCTestExpectation *expectation = [self expectationWithDescription:@"Result finished"];

// iPhone 13 Cameras:
AVCaptureDevice *wideAngleCamera = OCMClassMock([AVCaptureDevice class]);
OCMStub([wideAngleCamera uniqueID]).andReturn(@"0");
OCMStub([wideAngleCamera position]).andReturn(AVCaptureDevicePositionBack);
MockCaptureDevice *wideAngleCamera = [[MockCaptureDevice alloc] init];
wideAngleCamera.uniqueID = @"0";
wideAngleCamera.position = AVCaptureDevicePositionBack;

AVCaptureDevice *frontFacingCamera = OCMClassMock([AVCaptureDevice class]);
OCMStub([frontFacingCamera uniqueID]).andReturn(@"1");
OCMStub([frontFacingCamera position]).andReturn(AVCaptureDevicePositionFront);
MockCaptureDevice *frontFacingCamera = [[MockCaptureDevice alloc] init];
frontFacingCamera.uniqueID = @"1";
frontFacingCamera.position = AVCaptureDevicePositionFront;

AVCaptureDevice *ultraWideCamera = OCMClassMock([AVCaptureDevice class]);
OCMStub([ultraWideCamera uniqueID]).andReturn(@"2");
OCMStub([ultraWideCamera position]).andReturn(AVCaptureDevicePositionBack);
MockCaptureDevice *ultraWideCamera = [[MockCaptureDevice alloc] init];
ultraWideCamera.uniqueID = @"2";
ultraWideCamera.position = AVCaptureDevicePositionBack;

AVCaptureDevice *telephotoCamera = OCMClassMock([AVCaptureDevice class]);
OCMStub([telephotoCamera uniqueID]).andReturn(@"3");
OCMStub([telephotoCamera position]).andReturn(AVCaptureDevicePositionBack);
MockCaptureDevice *telephotoCamera = [[MockCaptureDevice alloc] init];
telephotoCamera.uniqueID = @"3";
telephotoCamera.position = AVCaptureDevicePositionBack;

NSMutableArray *requiredTypes =
[@[ AVCaptureDeviceTypeBuiltInWideAngleCamera, AVCaptureDeviceTypeBuiltInTelephotoCamera ]
Expand All @@ -43,21 +67,23 @@ - (void)testAvailableCamerasShouldReturnAllCamerasOnMultiCameraIPhone {
[requiredTypes addObject:AVCaptureDeviceTypeBuiltInUltraWideCamera];
}

id discoverySessionMock = OCMClassMock([AVCaptureDeviceDiscoverySession class]);
OCMStub([discoverySessionMock discoverySessionWithDeviceTypes:requiredTypes
mediaType:AVMediaTypeVideo
position:AVCaptureDevicePositionUnspecified])
.andReturn(discoverySessionMock);

NSMutableArray *cameras = [NSMutableArray array];
[cameras addObjectsFromArray:@[ wideAngleCamera, frontFacingCamera, telephotoCamera ]];
if (@available(iOS 13.0, *)) {
[cameras addObject:ultraWideCamera];
}
OCMStub([discoverySessionMock devices]).andReturn([NSArray arrayWithArray:cameras]);

mockDeviceDiscoverer.discoverySessionStub = ^NSArray<NSObject<FLTCaptureDevice> *> *_Nullable(
NSArray<AVCaptureDeviceType> *_Nonnull deviceTypes, AVMediaType _Nonnull mediaType,
AVCaptureDevicePosition position) {
XCTAssertEqualObjects(deviceTypes, requiredTypes);
XCTAssertEqual(mediaType, AVMediaTypeVideo);
XCTAssertEqual(position, AVCaptureDevicePositionUnspecified);
return cameras;
};

__block NSArray<FCPPlatformCameraDescription *> *resultValue;
[camera
[cameraPlugin
availableCamerasWithCompletion:^(NSArray<FCPPlatformCameraDescription *> *_Nullable result,
FlutterError *_Nullable error) {
XCTAssertNil(error);
Expand All @@ -74,17 +100,19 @@ - (void)testAvailableCamerasShouldReturnAllCamerasOnMultiCameraIPhone {
}
}
- (void)testAvailableCamerasShouldReturnOneCameraOnSingleCameraIPhone {
CameraPlugin *camera = [[CameraPlugin alloc] initWithRegistry:nil messenger:nil];
MockCameraDeviceDiscoverer *mockDeviceDiscoverer = [[MockCameraDeviceDiscoverer alloc] init];
CameraPlugin *cameraPlugin = [self createCameraPluginWithDeviceDiscoverer:mockDeviceDiscoverer];

XCTestExpectation *expectation = [self expectationWithDescription:@"Result finished"];

// iPhone 8 Cameras:
AVCaptureDevice *wideAngleCamera = OCMClassMock([AVCaptureDevice class]);
OCMStub([wideAngleCamera uniqueID]).andReturn(@"0");
OCMStub([wideAngleCamera position]).andReturn(AVCaptureDevicePositionBack);
MockCaptureDevice *wideAngleCamera = [[MockCaptureDevice alloc] init];
wideAngleCamera.uniqueID = @"0";
wideAngleCamera.position = AVCaptureDevicePositionBack;

AVCaptureDevice *frontFacingCamera = OCMClassMock([AVCaptureDevice class]);
OCMStub([frontFacingCamera uniqueID]).andReturn(@"1");
OCMStub([frontFacingCamera position]).andReturn(AVCaptureDevicePositionFront);
MockCaptureDevice *frontFacingCamera = [[MockCaptureDevice alloc] init];
frontFacingCamera.uniqueID = @"1";
frontFacingCamera.position = AVCaptureDevicePositionFront;

NSMutableArray *requiredTypes =
[@[ AVCaptureDeviceTypeBuiltInWideAngleCamera, AVCaptureDeviceTypeBuiltInTelephotoCamera ]
Expand All @@ -93,18 +121,20 @@ - (void)testAvailableCamerasShouldReturnOneCameraOnSingleCameraIPhone {
[requiredTypes addObject:AVCaptureDeviceTypeBuiltInUltraWideCamera];
}

id discoverySessionMock = OCMClassMock([AVCaptureDeviceDiscoverySession class]);
OCMStub([discoverySessionMock discoverySessionWithDeviceTypes:requiredTypes
mediaType:AVMediaTypeVideo
position:AVCaptureDevicePositionUnspecified])
.andReturn(discoverySessionMock);

NSMutableArray *cameras = [NSMutableArray array];
[cameras addObjectsFromArray:@[ wideAngleCamera, frontFacingCamera ]];
OCMStub([discoverySessionMock devices]).andReturn([NSArray arrayWithArray:cameras]);

mockDeviceDiscoverer.discoverySessionStub = ^NSArray<NSObject<FLTCaptureDevice> *> *_Nullable(
NSArray<AVCaptureDeviceType> *_Nonnull deviceTypes, AVMediaType _Nonnull mediaType,
AVCaptureDevicePosition position) {
XCTAssertEqualObjects(deviceTypes, requiredTypes);
XCTAssertEqual(mediaType, AVMediaTypeVideo);
XCTAssertEqual(position, AVCaptureDevicePositionUnspecified);
return cameras;
};

__block NSArray<FCPPlatformCameraDescription *> *resultValue;
[camera
[cameraPlugin
availableCamerasWithCompletion:^(NSArray<FCPPlatformCameraDescription *> *_Nullable result,
FlutterError *_Nullable error) {
XCTAssertNil(error);
Expand Down
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