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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <Foundation/Foundation.h>
@class FIRDocumentSnapshot;
@class FIRQuerySnapshot;
@class XCTestCase;
@class XCTestExpectation;
NS_ASSUME_NONNULL_BEGIN
typedef void (^FSTValueEventHandler)(id _Nullable, NSError *_Nullable error);
@interface FSTEventAccumulator <EventType> : NSObject
+ (instancetype)accumulatorForTest:(XCTestCase *)testCase;
- (instancetype)init NS_UNAVAILABLE;
- (EventType)awaitEventWithName:(NSString *)name;
- (NSArray<EventType> *)awaitEvents:(NSUInteger)events name:(NSString *)name;
/** Waits for a latency compensated local snapshot. */
- (EventType)awaitLocalEvent;
/** Waits for a snapshot that has no pending writes */
- (EventType)awaitRemoteEvent;
@property(nonatomic, strong, readonly) FSTValueEventHandler valueEventHandler;
@end
NS_ASSUME_NONNULL_END
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