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[camera]writing file on background queue #4721
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| // Copyright 2013 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| @import camera; | ||
| @import camera.Test; | ||
| @import AVFoundation; | ||
| @import XCTest; | ||
| #import <OCMock/OCMock.h> | ||
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| @interface FLTSavePhotoDelegate : NSObject <AVCapturePhotoCaptureDelegate> | ||
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| @property(readonly, nonatomic) NSString *path; | ||
| - initWithPath:(NSString *)path | ||
| result:(FLTThreadSafeFlutterResult *)result | ||
| ioQueue:(dispatch_queue_t)ioQueue; | ||
| - (void)handlePhotoCaptureResultWithError:(nullable NSError *)error | ||
| photoDataProvider:(NSData * (^)(void))photoDataProvider; | ||
| @end | ||
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| @interface FLTSavePhotoDelegateTests : XCTestCase | ||
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| @end | ||
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| @implementation FLTSavePhotoDelegateTests | ||
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| - (void)testHandlePhotoCaptureResult_mustSendErrorIfFailedToCapture { | ||
| NSError *error = [NSError errorWithDomain:@"test" code:0 userInfo:nil]; | ||
| dispatch_queue_t ioQueue = dispatch_queue_create("test", NULL); | ||
| id mockResult = OCMClassMock([FLTThreadSafeFlutterResult class]); | ||
| FLTSavePhotoDelegate *delegate = [[FLTSavePhotoDelegate alloc] initWithPath:@"test" | ||
| result:mockResult | ||
| ioQueue:ioQueue]; | ||
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| [delegate handlePhotoCaptureResultWithError:error | ||
| photoDataProvider:^NSData * { | ||
| return nil; | ||
| }]; | ||
| OCMVerify(times(1), [mockResult sendError:error]); | ||
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| } | ||
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| - (void)testHandlePhotoCaptureResult_mustSendErrorIfFailedToWrite { | ||
| XCTestExpectation *resultExpectation = | ||
| [self expectationWithDescription:@"Must send IOError to the result if failed to write file."]; | ||
| dispatch_queue_t ioQueue = dispatch_queue_create("test", NULL); | ||
| id mockResult = OCMClassMock([FLTThreadSafeFlutterResult class]); | ||
| OCMStub([mockResult sendErrorWithCode:@"IOError" message:@"Unable to write file" details:nil]) | ||
| .andDo(^(NSInvocation *invocation) { | ||
| [resultExpectation fulfill]; | ||
| }); | ||
| FLTSavePhotoDelegate *delegate = [[FLTSavePhotoDelegate alloc] initWithPath:@"test" | ||
| result:mockResult | ||
| ioQueue:ioQueue]; | ||
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| // We can't use OCMClassMock for NSData because some XCTest APIs uses NSData (e.g. | ||
| // `XCTRunnerIDESession::logDebugMessage:`) on a private queue. | ||
| id mockData = OCMPartialMock([NSData data]); | ||
| OCMStub([mockData writeToFile:[OCMArg any] atomically:[OCMArg any]]).andReturn(NO); | ||
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| [delegate handlePhotoCaptureResultWithError:nil | ||
| photoDataProvider:^NSData * { | ||
| return mockData; | ||
| }]; | ||
| [self waitForExpectationsWithTimeout:1 handler:nil]; | ||
| } | ||
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| - (void)testHandlePhotoCaptureResult_mustSendSuccessIfSuccessToWrite { | ||
| XCTestExpectation *resultExpectation = [self | ||
| expectationWithDescription:@"Must send file path to the result if success to write file."]; | ||
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| dispatch_queue_t ioQueue = dispatch_queue_create("test", NULL); | ||
| id mockResult = OCMClassMock([FLTThreadSafeFlutterResult class]); | ||
| FLTSavePhotoDelegate *delegate = [[FLTSavePhotoDelegate alloc] initWithPath:@"test" | ||
| result:mockResult | ||
| ioQueue:ioQueue]; | ||
| OCMStub([mockResult sendSuccessWithData:delegate.path]).andDo(^(NSInvocation *invocation) { | ||
| [resultExpectation fulfill]; | ||
| }); | ||
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| // We can't use OCMClassMock for NSData because some XCTest APIs uses NSData (e.g. | ||
| // `XCTRunnerIDESession::logDebugMessage:`) on a private queue. | ||
| id mockData = OCMPartialMock([NSData data]); | ||
| OCMStub([mockData writeToFile:[OCMArg any] atomically:[OCMArg any]]).andReturn(YES); | ||
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| [delegate handlePhotoCaptureResultWithError:nil | ||
| photoDataProvider:^NSData * { | ||
| return mockData; | ||
| }]; | ||
| [self waitForExpectationsWithTimeout:1 handler:nil]; | ||
| } | ||
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| - (void)testHandlePhotoCaptureResult_bothProvideDataAndSaveFileMustRunOnIOQueue { | ||
| XCTestExpectation *dataProviderQueueExpectation = | ||
| [self expectationWithDescription:@"Data provider must run on io queue."]; | ||
| XCTestExpectation *writeFileQueueExpectation = | ||
| [self expectationWithDescription:@"File writing must run on io queue"]; | ||
| XCTestExpectation *resultExpectation = [self | ||
| expectationWithDescription:@"Must send file path to the result if success to write file."]; | ||
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| dispatch_queue_t ioQueue = dispatch_queue_create("test", NULL); | ||
| const char *ioQueueSpecific = "io_queue_specific"; | ||
| dispatch_queue_set_specific(ioQueue, ioQueueSpecific, (void *)ioQueueSpecific, NULL); | ||
| id mockResult = OCMClassMock([FLTThreadSafeFlutterResult class]); | ||
| OCMStub([mockResult sendSuccessWithData:[OCMArg any]]).andDo(^(NSInvocation *invocation) { | ||
| [resultExpectation fulfill]; | ||
| }); | ||
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| // We can't use OCMClassMock for NSData because some XCTest APIs uses NSData (e.g. | ||
| // `XCTRunnerIDESession::logDebugMessage:`) on a private queue. | ||
| id mockData = OCMPartialMock([NSData data]); | ||
| OCMStub([mockData writeToFile:[OCMArg any] atomically:[OCMArg any]]) | ||
| .andDo(^(NSInvocation *invocation) { | ||
| if (dispatch_get_specific(ioQueueSpecific)) { | ||
| [writeFileQueueExpectation fulfill]; | ||
| } | ||
| }) | ||
| .andReturn(YES); | ||
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| FLTSavePhotoDelegate *delegate = [[FLTSavePhotoDelegate alloc] initWithPath:@"test" | ||
| result:mockResult | ||
| ioQueue:ioQueue]; | ||
| [delegate handlePhotoCaptureResultWithError:nil | ||
| photoDataProvider:^NSData * { | ||
| if (dispatch_get_specific(ioQueueSpecific)) { | ||
| [dataProviderQueueExpectation fulfill]; | ||
| } | ||
| return mockData; | ||
| }]; | ||
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| [self waitForExpectationsWithTimeout:1 handler:nil]; | ||
| } | ||
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| @end | ||
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