PhotoAssetUtilTests.m
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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.
#import "ImagePickerTestImages.h"
@import image_picker_ios;
@import image_picker_ios.Test;
@import XCTest;
@interface PhotoAssetUtilTests : XCTestCase
@end
@implementation PhotoAssetUtilTests
- (void)getAssetFromImagePickerInfoShouldReturnNilIfNotAvailable {
NSDictionary *mockData = @{};
XCTAssertNil([FLTImagePickerPhotoAssetUtil getAssetFromImagePickerInfo:mockData]);
}
- (void)testGetAssetFromPHPickerResultShouldReturnNilIfNotAvailable API_AVAILABLE(ios(14)) {
if (@available(iOS 14, *)) {
PHPickerResult *mockData;
[mockData.itemProvider
loadObjectOfClass:[UIImage class]
completionHandler:^(__kindof id<NSItemProviderReading> _Nullable image,
NSError *_Nullable error) {
XCTAssertNil([FLTImagePickerPhotoAssetUtil getAssetFromPHPickerResult:mockData]);
}];
}
}
- (void)testSaveImageWithOriginalImageData_ShouldSaveWithTheCorrectExtentionAndMetaData {
// test jpg
NSData *dataJPG = ImagePickerTestImages.JPGTestData;
UIImage *imageJPG = [UIImage imageWithData:dataJPG];
NSString *savedPathJPG = [FLTImagePickerPhotoAssetUtil saveImageWithOriginalImageData:dataJPG
image:imageJPG
maxWidth:nil
maxHeight:nil
imageQuality:nil];
XCTAssertEqualObjects([NSURL URLWithString:savedPathJPG].pathExtension, @"jpg");
NSDictionary *originalMetaDataJPG = [FLTImagePickerMetaDataUtil getMetaDataFromImageData:dataJPG];
NSData *newDataJPG = [NSData dataWithContentsOfFile:savedPathJPG];
NSDictionary *newMetaDataJPG = [FLTImagePickerMetaDataUtil getMetaDataFromImageData:newDataJPG];
XCTAssertEqualObjects(originalMetaDataJPG[@"ProfileName"], newMetaDataJPG[@"ProfileName"]);
// test png
NSData *dataPNG = ImagePickerTestImages.PNGTestData;
UIImage *imagePNG = [UIImage imageWithData:dataPNG];
NSString *savedPathPNG = [FLTImagePickerPhotoAssetUtil saveImageWithOriginalImageData:dataPNG
image:imagePNG
maxWidth:nil
maxHeight:nil
imageQuality:nil];
XCTAssertEqualObjects([NSURL URLWithString:savedPathPNG].pathExtension, @"png");
NSDictionary *originalMetaDataPNG = [FLTImagePickerMetaDataUtil getMetaDataFromImageData:dataPNG];
NSData *newDataPNG = [NSData dataWithContentsOfFile:savedPathPNG];
NSDictionary *newMetaDataPNG = [FLTImagePickerMetaDataUtil getMetaDataFromImageData:newDataPNG];
XCTAssertEqualObjects(originalMetaDataPNG[@"ProfileName"], newMetaDataPNG[@"ProfileName"]);
}
- (void)testSaveImageWithPickerInfo_ShouldSaveWithDefaultExtention {
UIImage *imageJPG = [UIImage imageWithData:ImagePickerTestImages.JPGTestData];
NSString *savedPathJPG = [FLTImagePickerPhotoAssetUtil saveImageWithPickerInfo:nil
image:imageJPG
imageQuality:nil];
// should be saved as
XCTAssertEqualObjects([savedPathJPG substringFromIndex:savedPathJPG.length - 4],
kFLTImagePickerDefaultSuffix);
}
- (void)testSaveImageWithPickerInfo_ShouldSaveWithTheCorrectExtentionAndMetaData {
NSDictionary *dummyInfo = @{
UIImagePickerControllerMediaMetadata : @{
(__bridge NSString *)kCGImagePropertyExifDictionary :
@{(__bridge NSString *)kCGImagePropertyExifUserComment : @"aNote"}
}
};
UIImage *imageJPG = [UIImage imageWithData:ImagePickerTestImages.JPGTestData];
NSString *savedPathJPG = [FLTImagePickerPhotoAssetUtil saveImageWithPickerInfo:dummyInfo
image:imageJPG
imageQuality:nil];
NSData *data = [NSData dataWithContentsOfFile:savedPathJPG];
NSDictionary *meta = [FLTImagePickerMetaDataUtil getMetaDataFromImageData:data];
XCTAssertEqualObjects(meta[(__bridge NSString *)kCGImagePropertyExifDictionary]
[(__bridge NSString *)kCGImagePropertyExifUserComment],
@"aNote");
}
- (void)testSaveImageWithOriginalImageData_ShouldSaveAsGifAnimation {
// test gif
NSData *dataGIF = ImagePickerTestImages.GIFTestData;
UIImage *imageGIF = [UIImage imageWithData:dataGIF];
CGImageSourceRef imageSource = CGImageSourceCreateWithData((__bridge CFDataRef)dataGIF, nil);
size_t numberOfFrames = CGImageSourceGetCount(imageSource);
NSString *savedPathGIF = [FLTImagePickerPhotoAssetUtil saveImageWithOriginalImageData:dataGIF
image:imageGIF
maxWidth:nil
maxHeight:nil
imageQuality:nil];
XCTAssertEqualObjects([NSURL URLWithString:savedPathGIF].pathExtension, @"gif");
NSData *newDataGIF = [NSData dataWithContentsOfFile:savedPathGIF];
CGImageSourceRef newImageSource =
CGImageSourceCreateWithData((__bridge CFDataRef)newDataGIF, nil);
size_t newNumberOfFrames = CGImageSourceGetCount(newImageSource);
XCTAssertEqual(numberOfFrames, newNumberOfFrames);
}
- (void)testSaveImageWithOriginalImageData_ShouldSaveAsScalledGifAnimation {
// test gif
NSData *dataGIF = ImagePickerTestImages.GIFTestData;
UIImage *imageGIF = [UIImage imageWithData:dataGIF];
CGImageSourceRef imageSource = CGImageSourceCreateWithData((__bridge CFDataRef)dataGIF, nil);
size_t numberOfFrames = CGImageSourceGetCount(imageSource);
NSString *savedPathGIF = [FLTImagePickerPhotoAssetUtil saveImageWithOriginalImageData:dataGIF
image:imageGIF
maxWidth:@3
maxHeight:@2
imageQuality:nil];
NSData *newDataGIF = [NSData dataWithContentsOfFile:savedPathGIF];
UIImage *newImage = [[UIImage alloc] initWithData:newDataGIF];
XCTAssertEqual(newImage.size.width, 3);
XCTAssertEqual(newImage.size.height, 2);
CGImageSourceRef newImageSource =
CGImageSourceCreateWithData((__bridge CFDataRef)newDataGIF, nil);
size_t newNumberOfFrames = CGImageSourceGetCount(newImageSource);
XCTAssertEqual(numberOfFrames, newNumberOfFrames);
}
@end