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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 "FTestHelpers.h"
#import "FConstants.h"
#import <FirebaseCore/FIRApp.h>
#import <FirebaseCore/FIROptions.h>
#import "FIRDatabaseConfig_Private.h"
#import "FTestAuthTokenGenerator.h"
@implementation FTestHelpers
+ (NSTimeInterval) waitUntil:(BOOL (^)())predicate timeout:(NSTimeInterval)seconds {
NSTimeInterval start = [NSDate timeIntervalSinceReferenceDate];
NSDate *timeoutDate = [NSDate dateWithTimeIntervalSinceNow:seconds];
NSTimeInterval timeoutTime = [timeoutDate timeIntervalSinceReferenceDate];
NSTimeInterval currentTime;
for (currentTime = [NSDate timeIntervalSinceReferenceDate];
!predicate() && currentTime < timeoutTime;
currentTime = [NSDate timeIntervalSinceReferenceDate]) {
[[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.25]];
}
NSTimeInterval finish = [NSDate timeIntervalSinceReferenceDate];
NSAssert(currentTime <= timeoutTime, @"Timed out");
return (finish - start);
}
+ (NSArray*) getRandomNodes:(int)num persistence:(BOOL)persistence {
static dispatch_once_t pred = 0;
static NSMutableArray *persistenceRefs = nil;
static NSMutableArray *noPersistenceRefs = nil;
dispatch_once(&pred, ^{
persistenceRefs = [[NSMutableArray alloc] init];
noPersistenceRefs = [[NSMutableArray alloc] init];
// Uncomment the following line to run tests against a background thread
//[Firebase setDispatchQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)];
});
NSMutableArray *refs = (persistence) ? persistenceRefs : noPersistenceRefs;
id<FAuthTokenProvider> authTokenProvider = [FAuthTokenProvider authTokenProviderForApp:[FIRApp defaultApp]];
while (num > refs.count) {
NSString *sessionIdentifier = [NSString stringWithFormat:@"test-config-%@persistence-%lu", (persistence) ? @"" : @"no-", refs.count];
FIRDatabaseConfig *config = [[FIRDatabaseConfig alloc] initWithSessionIdentifier:sessionIdentifier authTokenProvider:authTokenProvider];
config.persistenceEnabled = persistence;
FIRDatabaseReference * ref = [[FIRDatabaseReference alloc] initWithConfig:config];
[refs addObject:ref];
}
NSMutableArray* results = [[NSMutableArray alloc] init];
NSString* name = nil;
for (int i = 0; i < num; ++i) {
FIRDatabaseReference * ref = [refs objectAtIndex:i];
if (!name) {
name = [ref childByAutoId].key;
}
[results addObject:[ref child:name]];
}
return results;
}
// Helpers
+ (FIRDatabaseReference *) getRandomNode {
NSArray* refs = [self getRandomNodes:1 persistence:YES];
return [refs objectAtIndex:0];
}
+ (FIRDatabaseReference *) getRandomNodeWithoutPersistence {
NSArray* refs = [self getRandomNodes:1 persistence:NO];
return refs[0];
}
+ (FTupleFirebase *) getRandomNodePair {
NSArray* refs = [self getRandomNodes:2 persistence:YES];
FTupleFirebase* tuple = [[FTupleFirebase alloc] init];
tuple.one = [refs objectAtIndex:0];
tuple.two = [refs objectAtIndex:1];
return tuple;
}
+ (FTupleFirebase *) getRandomNodePairWithoutPersistence {
NSArray* refs = [self getRandomNodes:2 persistence:NO];
FTupleFirebase* tuple = [[FTupleFirebase alloc] init];
tuple.one = refs[0];
tuple.two = refs[1];
return tuple;
}
+ (FTupleFirebase *) getRandomNodeTriple {
NSArray* refs = [self getRandomNodes:3 persistence:YES];
FTupleFirebase* triple = [[FTupleFirebase alloc] init];
triple.one = [refs objectAtIndex:0];
triple.two = [refs objectAtIndex:1];
triple.three = [refs objectAtIndex:2];
return triple;
}
+ (id<FNode>)leafNodeOfSize:(NSUInteger)size {
NSMutableString *string = [NSMutableString string];
NSString *pattern = @"abdefghijklmopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
for (NSUInteger i = 0; i < size - pattern.length; i = i + pattern.length) {
[string appendString:pattern];
}
NSUInteger remainingLength = size - string.length;
[string appendString:[pattern substringToIndex:remainingLength]];
return [FSnapshotUtilities nodeFrom:string];
}
@end
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