From af4efd4fa7106a919f730127bdb8bade81fd8203 Mon Sep 17 00:00:00 2001 From: Chris Loer Date: Fri, 1 Jun 2018 15:23:41 -0700 Subject: [ios, test] Add MGLMapSnapshotter integration tests. --- .../Snapshotter Tests/MGLMapSnapshotterTest.m | 239 +++++++++++++++++++++ 1 file changed, 239 insertions(+) create mode 100644 platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m (limited to 'platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m') diff --git a/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m b/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m new file mode 100644 index 0000000000..f31f9cf787 --- /dev/null +++ b/platform/ios/Integration Tests/Snapshotter Tests/MGLMapSnapshotterTest.m @@ -0,0 +1,239 @@ +#import "MGLMapViewIntegrationTest.h" + +@interface MGLMapSnapshotterTest : MGLMapViewIntegrationTest +@end + +// Convenience func to create snapshotter +MGLMapSnapshotter* snapshotterWithCoordinates(CLLocationCoordinate2D coordinates, CGSize size) { + // Create snapshot options + MGLMapCamera* mapCamera = [[MGLMapCamera alloc] init]; + mapCamera.pitch = 20; + mapCamera.centerCoordinate = coordinates; + MGLMapSnapshotOptions* options = [[MGLMapSnapshotOptions alloc] initWithStyleURL:[MGLStyle satelliteStreetsStyleURL] + camera:mapCamera + size:size]; + options.zoomLevel = 10; + + // Create and start the snapshotter + MGLMapSnapshotter* snapshotter = [[MGLMapSnapshotter alloc] initWithOptions:options]; + return snapshotter; +} + +NSString* validAccessToken() { + NSString *accessToken = [[NSProcessInfo processInfo] environment][@"MAPBOX_ACCESS_TOKEN"]; + if (!accessToken) { + printf("warning: MAPBOX_ACCESS_TOKEN env var is required for this test - skipping.\n"); + return nil; + } + + [MGLAccountManager setAccessToken:accessToken]; + return accessToken; +} + +@implementation MGLMapSnapshotterTest + +- (void)testMultipleSnapshotsWithASingleSnapshotter { + if (!validAccessToken()) { + return; + } + + CGSize size = self.mapView.bounds.size; + + XCTestExpectation *expectation = [self expectationWithDescription:@"snapshots"]; + expectation.expectedFulfillmentCount = 2; + expectation.assertForOverFulfill = YES; + + CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(30.0, 30.0); + + MGLMapSnapshotter *snapshotter = snapshotterWithCoordinates(coord, size); + XCTAssertNotNil(snapshotter); + + [snapshotter startWithCompletionHandler:^(MGLMapSnapshot * _Nullable snapshot, NSError * _Nullable error) { + [expectation fulfill]; + }]; + + @try { + [snapshotter startWithCompletionHandler:^(MGLMapSnapshot * _Nullable snapshot, NSError * _Nullable error) { + XCTFail(@"Should not be called - but should it?"); + }]; + XCTFail(@"Should not be called"); + } + @catch (NSException *exception) { + XCTAssert(exception.name == NSInternalInconsistencyException); + [expectation fulfill]; + } + + [self waitForExpectations:@[expectation] timeout:10.0]; +} + +- (void)testAllocatingSnapshotOnBackgroundQueue { + if (!validAccessToken()) { + return; + } + + XCTestExpectation *expectation = [self expectationWithDescription:@"snapshots"]; + + CGSize size = self.mapView.bounds.size; + CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(30.0, 30.0); + + dispatch_queue_attr_t attr = dispatch_queue_attr_make_with_qos_class(DISPATCH_QUEUE_SERIAL, QOS_CLASS_USER_INITIATED, QOS_MIN_RELATIVE_PRIORITY); + dispatch_queue_t backgroundQueue = dispatch_queue_create(__PRETTY_FUNCTION__, attr); + + // This crashes maybe 1 in 10 times. + dispatch_async(backgroundQueue, ^{ + + // Create the snapshotter - DO NOT START. + MGLMapSnapshotter* snapshotter = snapshotterWithCoordinates(coord, size); + + dispatch_group_t group = dispatch_group_create(); + dispatch_group_enter(group); + + dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ + dispatch_group_leave(group); + }); + + dispatch_group_wait(group, DISPATCH_TIME_FOREVER); + + snapshotter = nil; + + dispatch_sync(dispatch_get_main_queue(), ^{ + [expectation fulfill]; + }); + }); + + [self waitForExpectations:@[expectation] timeout:2.0]; +} + +- (void)testMultipleSnapshottersFromBackgroundQueue { + if (!validAccessToken()) { + return; + } + + // Crashes with only 1 snapshot + CGSize size = self.mapView.bounds.size; + CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(30.0, 30.0); + + XCTestExpectation *expectation = [self expectationWithDescription:@"snapshots"]; + expectation.expectedFulfillmentCount = 1; + expectation.assertForOverFulfill = YES; + + __weak __typeof__(self) weakself = self; + + dispatch_queue_attr_t attr = dispatch_queue_attr_make_with_qos_class(DISPATCH_QUEUE_SERIAL, QOS_CLASS_USER_INITIATED, QOS_MIN_RELATIVE_PRIORITY); // also for concurrent + dispatch_queue_t backgroundQueue = dispatch_queue_create(__PRETTY_FUNCTION__, attr); + + + // Use dispatch_group to keep the backgroundQueue block around (and + // so also the MGLMapSnapshotter + dispatch_group_t group = dispatch_group_create(); + dispatch_group_enter(group); + + + dispatch_async(backgroundQueue, ^{ + + MGLMapSnapshotter *snapshotter = snapshotterWithCoordinates(coord, size); + XCTAssertNotNil(snapshotter); + + MGLMapSnapshotCompletionHandler completion = ^(MGLMapSnapshot * _Nullable snapshot, NSError * _Nullable error) { + + // This should be the main queue + __typeof__(self) strongself = weakself; + + MGLTestAssertNotNil(strongself, strongself); + + MGLTestAssertNotNil(strongself, snapshot); + MGLTestAssertNotNil(strongself, snapshot.image); + MGLTestAssertNil(strongself, error, @"Snapshot should not error with: %@", error); + + // Change this back to XCTAttachmentLifetimeDeleteOnSuccess when we're sure this + // test is passing. + XCTAttachment *attachment = [XCTAttachment attachmentWithImage:snapshot.image]; + attachment.lifetime = XCTAttachmentLifetimeKeepAlways; + [strongself addAttachment:attachment]; + + dispatch_group_leave(group); + }; + + // untested + @try { + [snapshotter startWithCompletionHandler:completion]; + MGLTestFail(weakself); + } + @catch (NSException *exception) { + MGLTestAssert(weakself, exception.name == NSInvalidArgumentException); + dispatch_group_leave(group); + } + + // Wait for the snapshot to complete + dispatch_group_wait(group, DISPATCH_TIME_FOREVER); + + snapshotter = nil; + + dispatch_sync(dispatch_get_main_queue(), ^{ + [expectation fulfill]; + }); + }); + + [self waitForExpectations:@[expectation] timeout:10.0]; +} + +- (void)testMultipleSnapshotters { + if (!validAccessToken()) { + return; + } + + NSUInteger numSnapshots = 8; + CGSize size = self.mapView.bounds.size; + + XCTestExpectation *expectation = [self expectationWithDescription:@"snapshots"]; + expectation.expectedFulfillmentCount = numSnapshots; + expectation.assertForOverFulfill = YES; + + __weak __typeof__(self) weakself = self; + + for (size_t run = 0; run < numSnapshots; run++) { + + float ratio = (float)run/(float)numSnapshots; + float lon = (ratio*120.0) + ((1.0-ratio)*54.0); + CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(57.0, lon); + + __block MGLMapSnapshotter *snapshotter; + + // Allocate from an autorelease pool here, to avoid having + // snapshotter retained for longer than we'd like to test. + @autoreleasepool { + snapshotter = snapshotterWithCoordinates(coord, size); + XCTAssertNotNil(snapshotter); + } + + [snapshotter startWithCompletionHandler:^(MGLMapSnapshot * _Nullable snapshot, NSError * _Nullable error) { + + // This should be the main queue + __typeof__(self) strongself = weakself; + + MGLTestAssertNotNil(strongself, strongself); + + MGLTestAssertNotNil(strongself, snapshot); + MGLTestAssertNotNil(strongself, snapshot.image); + MGLTestAssertNil(strongself, error, @"Snapshot should not error with: %@", error); + + // Change this back to XCTAttachmentLifetimeDeleteOnSuccess when we're sure this + // test is passing. + XCTAttachment *attachment = [XCTAttachment attachmentWithImage:snapshot.image]; + attachment.lifetime = XCTAttachmentLifetimeKeepAlways; + [strongself addAttachment:attachment]; + + // Dealloc the snapshotter (by having this line in the block, we + // also retained the snapshotter. Setting to nil should release, as + // this block should be the only thing retaining it (since it was + // allocated from the above autorelease pool) + snapshotter = nil; + + [expectation fulfill]; + }]; + } // end for loop + + [self waitForExpectations:@[expectation] timeout:20.0]; +} + +@end -- cgit v1.2.1