ImageUtilTests.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 ImageUtilTests : XCTestCase
@end
@implementation ImageUtilTests
- (void)testScaledImage_ShouldBeScaled {
UIImage *image = [UIImage imageWithData:ImagePickerTestImages.JPGTestData];
UIImage *newImage = [FLTImagePickerImageUtil scaledImage:image
maxWidth:@3
maxHeight:@2
isMetadataAvailable:YES];
XCTAssertEqual(newImage.size.width, 3);
XCTAssertEqual(newImage.size.height, 2);
}
- (void)testScaledImage_ShouldBeScaledWithNoMetadata {
UIImage *image = [UIImage imageWithData:ImagePickerTestImages.JPGTestData];
UIImage *newImage = [FLTImagePickerImageUtil scaledImage:image
maxWidth:@3
maxHeight:@2
isMetadataAvailable:NO];
XCTAssertEqual(newImage.size.width, 3);
XCTAssertEqual(newImage.size.height, 2);
}
- (void)testScaledImage_ShouldBeCorrectRotation {
NSURL *imageURL =
[[NSBundle bundleForClass:[self class]] URLForResource:@"jpgImageWithRightOrientation"
withExtension:@"jpg"];
NSData *imageData = [NSData dataWithContentsOfURL:imageURL];
UIImage *image = [UIImage imageWithData:imageData];
XCTAssertEqual(image.size.width, 130);
XCTAssertEqual(image.size.height, 174);
XCTAssertEqual(image.imageOrientation, UIImageOrientationRight);
UIImage *newImage = [FLTImagePickerImageUtil scaledImage:image
maxWidth:@10
maxHeight:@10
isMetadataAvailable:YES];
XCTAssertEqual(newImage.size.width, 10);
XCTAssertEqual(newImage.size.height, 7);
XCTAssertEqual(newImage.imageOrientation, UIImageOrientationUp);
}
- (void)testScaledGIFImage_ShouldBeScaled {
// gif image that frame size is 3 and the duration is 1 second.
GIFInfo *info = [FLTImagePickerImageUtil scaledGIFImage:ImagePickerTestImages.GIFTestData
maxWidth:@3
maxHeight:@2];
NSArray<UIImage *> *images = info.images;
NSTimeInterval duration = info.interval;
XCTAssertEqual(images.count, 3);
XCTAssertEqual(duration, 1);
for (UIImage *newImage in images) {
XCTAssertEqual(newImage.size.width, 3);
XCTAssertEqual(newImage.size.height, 2);
}
}
@end