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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 <XCTest/XCTest.h>
#import "FIRAuthDispatcher.h"
/** @var kMaxDifferenceBetweenTimeIntervals
@brief The maximum difference between time intervals (in seconds), after which they will be
considered different.
*/
static const NSTimeInterval kMaxDifferenceBetweenTimeIntervals = 0.1;
/** @var kTestDelay
@brief Fake time delay before tasks are dispatched.
*/
NSTimeInterval kTestDelay = 0.1;
/** @var kExpectationTimeout
@brief The maximum time waiting for expectations to fulfill.
*/
static const NSTimeInterval kExpectationTimeout = 1;
id<OS_dispatch_queue> testWorkQueue;
/** @class FIRAuthDispatcherTests
@brief Tests for @c FIRAuthDispatcher.
*/
@interface FIRAuthDispatcherTests : XCTestCase
@end
@implementation FIRAuthDispatcherTests
- (void)setUp {
[super setUp];
testWorkQueue = dispatch_queue_create("test.work.queue", NULL);
}
/** @fn testSharedInstance
@brief Tests @c sharedInstance returns the same object.
*/
- (void)testSharedInstance {
FIRAuthDispatcher *instance1 = [FIRAuthDispatcher sharedInstance];
FIRAuthDispatcher *instance2 = [FIRAuthDispatcher sharedInstance];
XCTAssertEqual(instance1, instance2);
}
/** @fn testDispatchAfterDelay
@brief Tests @c dispatchAfterDelay indeed dispatches the specified task after the provided
delay.
*/
- (void)testDispatchAfterDelay {
FIRAuthDispatcher *dispatcher = [FIRAuthDispatcher sharedInstance];
XCTestExpectation *expectation = [self expectationWithDescription:@"dispatchAfterCallback"];
NSDate *dateBeforeDispatch = [NSDate date];
dispatcher.dispatchAfterImplementation = nil;
[dispatcher dispatchAfterDelay:kTestDelay
queue:testWorkQueue
task:^{
NSTimeInterval timeSinceDispatch = fabs([dateBeforeDispatch timeIntervalSinceNow]) - kTestDelay;
XCTAssert(timeSinceDispatch < kMaxDifferenceBetweenTimeIntervals);
[expectation fulfill];
}];
[self waitForExpectationsWithTimeout:kExpectationTimeout handler:nil];
dispatcher = nil;
}
/** @fn testSetDispatchAfterImplementation
@brief Tests taht @c dispatchAfterImplementation indeed configures a custom implementation for
@c dispatchAfterDelay.
*/
- (void)testSetDispatchAfterImplementation {
FIRAuthDispatcher *dispatcher = [FIRAuthDispatcher sharedInstance];
XCTestExpectation *expectation1 = [self expectationWithDescription:@"setDispatchTokenCallback"];
[dispatcher setDispatchAfterImplementation:^(NSTimeInterval delay,
id<OS_dispatch_queue> _Nonnull queue,
void (^task)(void)) {
XCTAssertEqual(kTestDelay, delay);
XCTAssertEqual(testWorkQueue, queue);
[expectation1 fulfill];
}];
[dispatcher dispatchAfterDelay:kTestDelay
queue:testWorkQueue
task:^{
// Fail to ensure this code is never executed.
XCTFail();
}];
[self waitForExpectationsWithTimeout:kExpectationTimeout handler:nil];
dispatcher.dispatchAfterImplementation = nil;;
}
@end
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