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+// AFUIButtonTests.h
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+// Copyright (c) 2011–2015 Alamofire Software Foundation (http://alamofire.org/)
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+//
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+// Permission is hereby granted, free of charge, to any person obtaining a copy
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+// of this software and associated documentation files (the "Software"), to deal
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+// in the Software without restriction, including without limitation the rights
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+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+// copies of the Software, and to permit persons to whom the Software is
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+// furnished to do so, subject to the following conditions:
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+//
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+// The above copyright notice and this permission notice shall be included in
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+// all copies or substantial portions of the Software.
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+//
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+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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+// THE SOFTWARE.
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+
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+#import <XCTest/XCTest.h>
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+#import "AFTestCase.h"
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+#import "UIButton+AFNetworking.h"
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+#import "AFImageDownloader.h"
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+
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+@interface AFUIButtonTests : AFTestCase
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+@property (nonatomic, strong) UIImage *cachedImage;
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+@property (nonatomic, strong) NSURLRequest *cachedImageRequest;
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+@property (nonatomic, strong) UIButton *button;
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+
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+@property (nonatomic, strong) NSURL *error404URL;
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+@property (nonatomic, strong) NSURLRequest *error404URLRequest;
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+
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+@property (nonatomic, strong) NSURL *jpegURL;
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+@property (nonatomic, strong) NSURLRequest *jpegURLRequest;
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+@end
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+
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+@implementation AFUIButtonTests
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+
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+- (void)setUp {
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+ [super setUp];
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+ [[UIButton sharedImageDownloader].imageCache removeAllImages];
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+ [[[[[[UIButton sharedImageDownloader] sessionManager] session] configuration] URLCache] removeAllCachedResponses];
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+ [UIButton setSharedImageDownloader:[[AFImageDownloader alloc] init]];
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+
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+ self.button = [UIButton new];
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+
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+ self.jpegURL = [NSURL URLWithString:@"https://httpbin.org/image/jpeg"];
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+ self.jpegURLRequest = [NSURLRequest requestWithURL:self.jpegURL];
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+
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+ self.error404URL = [NSURL URLWithString:@"https://httpbin.org/status/404"];
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+ self.error404URLRequest = [NSURLRequest requestWithURL:self.error404URL];
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+
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+}
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+
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+- (void)tearDown {
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+ self.button = nil;
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+ [super tearDown];
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+
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+}
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+
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+- (void)testThatForegroundImageCanBeCancelledAndDownloadedImmediately {
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+ //https://github.com/Alamofire/AlamofireImage/issues/55
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+ XCTestExpectation *expectation = [self expectationWithDescription:@"Request should succeed"];
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+ [self.button setImageForState:UIControlStateNormal withURL:self.jpegURL];
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+ [self.button cancelImageDownloadTaskForState:UIControlStateNormal];
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+ __block UIImage *responseImage;
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+ [self.button
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+ setImageForState:UIControlStateNormal
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+ withURLRequest:self.jpegURLRequest
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+ placeholderImage:nil
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+ success:^(NSURLRequest * _Nonnull request, NSHTTPURLResponse * _Nullable response, UIImage * _Nonnull image) {
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+ responseImage = image;
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+ [expectation fulfill];
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+ }
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+ failure:nil];
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+ [self waitForExpectationsWithCommonTimeoutUsingHandler:nil];
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+ XCTAssertNotNil(responseImage);
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+}
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+
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+- (void)testThatBackgroundImageCanBeCancelledAndDownloadedImmediately {
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+ //https://github.com/Alamofire/AlamofireImage/issues/55
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+ XCTestExpectation *expectation = [self expectationWithDescription:@"Request should succeed"];
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+ [self.button setBackgroundImageForState:UIControlStateNormal withURL:self.jpegURL];
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+ [self.button cancelBackgroundImageDownloadTaskForState:UIControlStateNormal];
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+ __block UIImage *responseImage;
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+ [self.button
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+ setBackgroundImageForState:UIControlStateNormal
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+ withURLRequest:self.jpegURLRequest
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+ placeholderImage:nil
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+ success:^(NSURLRequest * _Nonnull request, NSHTTPURLResponse * _Nullable response, UIImage * _Nonnull image) {
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+ responseImage = image;
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+ [expectation fulfill];
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+ }
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+ failure:nil];
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+ [self waitForExpectationsWithCommonTimeoutUsingHandler:nil];
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+ XCTAssertNotNil(responseImage);
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+}
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+
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+@end
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Kevin Harwood