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Merge pull request #1358 from ejensen/asynchronous-test

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[Tests] Replace sleep() with XCTest asynchronous expectations
This commit is contained in:
appleguy
2016-03-11 22:38:07 -08:00
parent 4f742a9640 a3331b42ae
commit fe8cc9328c
1 changed files with 19 additions and 25 deletions
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44
AsyncDisplayKitTests/ASBasicImageDownloaderTests.m
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@@ -1,5 +1,5 @@
//
// ASZBasicImageDownloaderTests.m
// ASBasicImageDownloaderTests.m
// AsyncDisplayKit
//
// Created by Victor Mayorov on 10/06/15.
@@ -10,7 +10,6 @@
#import <AsyncDisplayKit/ASBasicImageDownloader.h>
// Z in the name to delay running until after the test instance is operating normally.
@interface ASBasicImageDownloaderTests : XCTestCase
@end
@@ -19,35 +18,30 @@
- (void)testAsynchronouslyDownloadTheSameURLTwice
{
ASBasicImageDownloader *downloader = [ASBasicImageDownloader sharedImageDownloader];
NSURL *URL = [NSURL URLWithString:@"http://wrongPath/wrongResource.png"];
XCTestExpectation *firstExpectation = [self expectationWithDescription:@"First ASBasicImageDownloader completion handler should be called within 3 seconds"];
XCTestExpectation *secondExpectation = [self expectationWithDescription:@"Second ASBasicImageDownloader completion handler should be called within 3 seconds"];
ASBasicImageDownloader *downloader = [ASBasicImageDownloader sharedImageDownloader];
NSURL *URL = [NSURL URLWithString:@"http://wrongPath/wrongResource.png"];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[downloader downloadImageWithURL:URL
callbackQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
downloadProgressBlock:nil
completion:^(CGImageRef image, NSError *error) {
[firstExpectation fulfill];
}];
__block BOOL firstDone = NO;
[downloader downloadImageWithURL:URL
callbackQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
downloadProgressBlock:nil
completion:^(CGImageRef image, NSError *error) {
firstDone = YES;
}];
__block BOOL secondDone = NO;
[downloader downloadImageWithURL:URL
callbackQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
downloadProgressBlock:nil
completion:^(CGImageRef image, NSError *error) {
secondDone = YES;
}];
[downloader downloadImageWithURL:URL
callbackQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
downloadProgressBlock:nil
completion:^(CGImageRef image, NSError *error) {
[secondExpectation fulfill];
}];
#pragma clang diagnostic pop
sleep(3);
XCTAssert(firstDone && secondDone, @"Not all ASBasicImageDownloader completion handlers have been called after 3 seconds");
[self waitForExpectationsWithTimeout:3 handler:nil];
}
@end