keychain/ckks/tests/CKKSConditionTests.m

   1 /*
   2  * Copyright (c) 2017 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #import <XCTest/XCTest.h>
  25 #import <XCTest/XCTest.h>
  26 #import "keychain/ckks/CKKSCondition.h"
  27 #import <utilities/debugging.h>
  28
  29 @interface CKKSConditionTests : XCTestCase
  30 @end
  31
  32 @implementation CKKSConditionTests
  33
  34 - (void)setUp {
  35     [super setUp];
  36 }
  37
  38 - (void)tearDown {
  39     [super tearDown];
  40 }
  41
  42 -(void)testConditionAfterFulfill {
  43     CKKSCondition* c = [[CKKSCondition alloc] init];
  44
  45     [c fulfill];
  46     XCTAssertEqual(0, [c wait:100*NSEC_PER_MSEC], "first wait after fulfill succeeds");
  47     XCTAssertEqual(0, [c wait:100*NSEC_PER_MSEC], "second wait after fulfill succeeds");
  48     XCTAssertEqual(0, [c wait:100*NSEC_PER_MSEC], "third wait after fulfill succeeds");
  49 }
  50
  51 -(void)testConditionTimeout {
  52     CKKSCondition* c = [[CKKSCondition alloc] init];
  53     XCTAssertNotEqual(0, [c wait:100*NSEC_PER_MSEC], "waiting without fulfilling times out");
  54 }
  55
  56 -(void)testConditionWait {
  57     CKKSCondition* c = [[CKKSCondition alloc] init];
  58
  59     dispatch_queue_t queue = dispatch_queue_create("testConditionWait", DISPATCH_QUEUE_CONCURRENT);
  60
  61     XCTestExpectation *toofastexpectation = [self expectationWithDescription:@"wait ended (too soon)"];
  62     toofastexpectation.inverted = YES;
  63
  64     XCTestExpectation *expectation = [self expectationWithDescription:@"wait ended"];
  65
  66     dispatch_async(queue, ^{
  67         XCTAssertEqual(0, [c wait:1*NSEC_PER_SEC], "Wait did not time out");
  68         [toofastexpectation fulfill];
  69         [expectation fulfill];
  70     });
  71
  72     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(150 * NSEC_PER_MSEC)), queue, ^{
  73         [c fulfill];
  74     });
  75
  76     // Make sure it waits at least 0.1 seconds
  77     [self waitForExpectations: @[toofastexpectation] timeout:0.1];
  78
  79     // But finishes within .6s (total)
  80     [self waitForExpectations: @[expectation] timeout:0.5];
  81 }
  82
  83 -(void)testConditionChain {
  84     CKKSCondition* chained = [[CKKSCondition alloc] init];
  85     CKKSCondition* c = [[CKKSCondition alloc] initToChain: chained];
  86
  87     XCTAssertNotEqual(0, [chained wait:50*NSEC_PER_MSEC], "waiting on chained condition without fulfilling times out");
  88     XCTAssertNotEqual(0, [c       wait:50*NSEC_PER_MSEC], "waiting on condition without fulfilling times out");
  89
  90     [c fulfill];
  91     XCTAssertEqual(0, [c       wait:100*NSEC_PER_MSEC], "first wait after fulfill succeeds");
  92     XCTAssertEqual(0, [chained wait:100*NSEC_PER_MSEC], "first chained wait after fulfill succeeds");
  93     XCTAssertEqual(0, [c       wait:100*NSEC_PER_MSEC], "second wait after fulfill succeeds");
  94     XCTAssertEqual(0, [chained wait:100*NSEC_PER_MSEC], "second chained wait after fulfill succeeds");
  95 }
  96
  97 @end