Tests for SDWebImageManager

@@ -14,6 +14,7 @@
 
 #import "SDWebImageManager.h"
 
+NSString *workingImageURL = @"http://s3.amazonaws.com/fast-image-cache/demo-images/FICDDemoImage001.jpg";
 
 @interface SDWebImageManagerTests : XCTestCase
 
@@ -21,22 +22,15 @@
 
 @implementation SDWebImageManagerTests
 
-- (void)setUp
-{
-    [super setUp];
-    // Put setup code here. This method is called before the invocation of each test method in the class.
+- (void)test01ThatSharedManagerIsNotEqualToInitManager {
+    SDWebImageManager *manager = [[SDWebImageManager alloc] init];
+    expect(manager).toNot.equal([SDWebImageManager sharedManager]);
 }
 
-- (void)tearDown
-{
-    // Put teardown code here. This method is called after the invocation of each test method in the class.
-    [super tearDown];
-}
-
-- (void)testThatDownloadInvokesCompletionBlockWithCorrectParamsAsync {
+- (void)test02ThatDownloadInvokesCompletionBlockWithCorrectParamsAsync {
     __block XCTestExpectation *expectation = [self expectationWithDescription:@"Image download completes"];
 
-    NSURL *originalImageURL = [NSURL URLWithString:@"http://s3.amazonaws.com/fast-image-cache/demo-images/FICDDemoImage001.jpg"];
+    NSURL *originalImageURL = [NSURL URLWithString:workingImageURL];
     
     [[SDWebImageManager sharedManager] loadImageWithURL:originalImageURL
                                                 options:SDWebImageRefreshCached
@@ -49,11 +43,12 @@
         [expectation fulfill];
         expectation = nil;
     }];
+    expect([[SDWebImageManager sharedManager] isRunning]).to.equal(YES);
 
     [self waitForExpectationsWithTimeout:kAsyncTestTimeout handler:nil];
 }
 
-- (void)testThatDownloadWithIncorrectURLInvokesCompletionBlockWithAnErrorAsync {
+- (void)test03ThatDownloadWithIncorrectURLInvokesCompletionBlockWithAnErrorAsync {
     __block XCTestExpectation *expectation = [self expectationWithDescription:@"Image download completes"];
 
     NSURL *originalImageURL = [NSURL URLWithString:@"http://static2.dmcdn.net/static/video/656/177/44771656:jpeg_preview_small.png"];
@@ -73,4 +68,49 @@
     [self waitForExpectationsWithTimeout:kAsyncTestTimeout handler:nil];
 }
 
+- (void)test04CachedImageExistsForURL {
+    __block XCTestExpectation *expectation = [self expectationWithDescription:@"Image exists in cache"];
+    NSURL *imageURL = [NSURL URLWithString:workingImageURL];
+    [[SDWebImageManager sharedManager] cachedImageExistsForURL:imageURL completion:^(BOOL isInCache) {
+        if (isInCache) {
+            [expectation fulfill];
+        } else {
+            XCTFail(@"Image should be in cache");
+        }
+    }];
+    [self waitForExpectationsWithTimeout:kAsyncTestTimeout handler:nil];
+}
+
+- (void)test05DiskImageExistsForURL {
+    __block XCTestExpectation *expectation = [self expectationWithDescription:@"Image exists in disk cache"];
+    NSURL *imageURL = [NSURL URLWithString:workingImageURL];
+    [[SDWebImageManager sharedManager] diskImageExistsForURL:imageURL completion:^(BOOL isInCache) {
+        if (isInCache) {
+            [expectation fulfill];
+        } else {
+            XCTFail(@"Image should be in cache");
+        }
+    }];
+    [self waitForExpectationsWithTimeout:kAsyncTestTimeout handler:nil];
+}
+
+- (void)test06CancellAll {
+    XCTestExpectation *expectation = [self expectationWithDescription:@"Cancel"];
+    
+    NSURL *imageURL = [NSURL URLWithString:@"http://s3.amazonaws.com/fast-image-cache/demo-images/FICDDemoImage006.jpg"];
+    [[SDWebImageManager sharedManager] loadImageWithURL:imageURL options:0 progress:nil completed:^(UIImage * _Nullable image, NSData * _Nullable data, NSError * _Nullable error, SDImageCacheType cacheType, BOOL finished, NSURL * _Nullable imageURL) {
+        XCTFail(@"Should not get here");
+    }];
+    
+    [[SDWebImageManager sharedManager] cancelAll];
+    
+    // doesn't cancel immediately - since it uses dispatch async
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        expect([[SDWebImageManager sharedManager] isRunning]).to.equal(NO);
+        [expectation fulfill];
+    });
+    
+    [self waitForExpectationsWithTimeout:kAsyncTestTimeout handler:nil];
+}
+
 @end