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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 "FIRAuthGlobalWorkQueue.h"
#import "FIRAuthSerialTaskQueue.h"
/** @var kTimeout
@brief Time-out in seconds waiting for tasks to be executed.
*/
static const NSTimeInterval kTimeout = 1;
/** @class FIRAuthSerialTaskQueueTests
@brief Tests for @c FIRAuthSerialTaskQueue .
*/
@interface FIRAuthSerialTaskQueueTests : XCTestCase
@end
@implementation FIRAuthSerialTaskQueueTests
- (void)testExecution {
XCTestExpectation *expectation = [self expectationWithDescription:@"executed"];
FIRAuthSerialTaskQueue *queue = [[FIRAuthSerialTaskQueue alloc] init];
[queue enqueueTask:^(FIRAuthSerialTaskCompletionBlock completionArg) {
completionArg();
[expectation fulfill];
}];
[self waitForExpectationsWithTimeout:kTimeout handler:nil];
}
- (void)testCompletion {
XCTestExpectation *expectation = [self expectationWithDescription:@"executed"];
FIRAuthSerialTaskQueue *queue = [[FIRAuthSerialTaskQueue alloc] init];
__block FIRAuthSerialTaskCompletionBlock completion = nil;
[queue enqueueTask:^(FIRAuthSerialTaskCompletionBlock completionArg) {
completion = completionArg;
[expectation fulfill];
}];
__block XCTestExpectation *nextExpectation = nil;
__block BOOL executed = NO;
[queue enqueueTask:^(FIRAuthSerialTaskCompletionBlock completionArg) {
executed = YES;
completionArg();
[nextExpectation fulfill];
}];
// The second task should not be executed until the first is completed.
[self waitForExpectationsWithTimeout:kTimeout handler:nil];
XCTAssertNotNil(completion);
XCTAssertFalse(executed);
nextExpectation = [self expectationWithDescription:@"executed next"];
completion();
[self waitForExpectationsWithTimeout:kTimeout handler:nil];
XCTAssertTrue(executed);
}
- (void)testTargetQueue {
XCTestExpectation *expectation = [self expectationWithDescription:@"executed"];
FIRAuthSerialTaskQueue *queue = [[FIRAuthSerialTaskQueue alloc] init];
__block BOOL executed = NO;
dispatch_suspend(FIRAuthGlobalWorkQueue());
[queue enqueueTask:^(FIRAuthSerialTaskCompletionBlock completionArg) {
executed = YES;
completionArg();
[expectation fulfill];
}];
// The task should not executed until the global work queue is resumed.
usleep(kTimeout * USEC_PER_SEC);
XCTAssertFalse(executed);
dispatch_resume(FIRAuthGlobalWorkQueue());
[self waitForExpectationsWithTimeout:kTimeout handler:nil];
}
- (void)testTaskQueueNoAffectTargetQueue {
FIRAuthSerialTaskQueue *queue = [[FIRAuthSerialTaskQueue alloc] init];
__block FIRAuthSerialTaskCompletionBlock completion = nil;
[queue enqueueTask:^(FIRAuthSerialTaskCompletionBlock completionArg) {
completion = completionArg;
}];
__block XCTestExpectation *nextExpectation = nil;
__block BOOL executed = NO;
[queue enqueueTask:^(FIRAuthSerialTaskCompletionBlock completionArg) {
executed = YES;
completionArg();
[nextExpectation fulfill];
}];
XCTestExpectation *expectation = [self expectationWithDescription:@"executed"];
dispatch_async(FIRAuthGlobalWorkQueue(), ^{
[expectation fulfill];
});
// The task queue waiting for completion should not affect the global work queue.
[self waitForExpectationsWithTimeout:kTimeout handler:nil];
XCTAssertNotNil(completion);
XCTAssertFalse(executed);
nextExpectation = [self expectationWithDescription:@"executed next"];
completion();
[self waitForExpectationsWithTimeout:kTimeout handler:nil];
XCTAssertTrue(executed);
}
@end
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