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			120 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			Objective-C
		
	
			
		
		
	
	
			120 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			Objective-C
		
	
//  Created by Russ Shanahan on 11/25/16.
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//  Copyright © 2016 Open Whisper Systems. All rights reserved.
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#import "Contact.h"
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#import <XCTest/XCTest.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface ContactSortingTest : XCTestCase
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@end
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@implementation ContactSortingTest
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- (void)setUp
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{
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    srandom((unsigned int)time(NULL));
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}
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- (void)testSortingNamesByFirstLast
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{
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    NSComparator comparator = [Contact comparatorSortingNamesByFirstThenLast:YES];
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    NSArray<Contact *>*sortedContacts = [self.class contactArrayForNames:@[@[@"Adam", @"Smith"],
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                                                                           @[@"Adam", @"West"],
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                                                                           @[@"", @"Daisy"],
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                                                                           @[@"Daisy", @"Chain"],
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                                                                           @[@"Daisy", @"Duke"],
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                                                                           @[@"James", @"Smith"],
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                                                                           @[@"James", @"Van"],
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                                                                           @[@"James", @"Van Der Beek"],
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                                                                           @[@"Kevin", @"Smith"],
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                                                                           @[@"Mae", @"West"],
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                                                                           @[@"Mary", @"Oliver"],
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                                                                           @[@"Mary Jo", @"Catlett"],
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                                                                           ]];
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    NSUInteger numContacts = sortedContacts.count;
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    for (NSUInteger i = 0; i < 20; i++) {
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        NSArray *shuffledContacts = [self.class shuffleArray:sortedContacts];
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        NSArray *resortedContacts = [shuffledContacts sortedArrayUsingComparator:comparator];
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        for (NSUInteger j = 0; j < numContacts; j++) {
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            Contact *a = sortedContacts[j];
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            Contact *b = resortedContacts[j];
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            BOOL correct = ([a.firstName isEqualToString:b.firstName] && [a.lastName isEqualToString:b.lastName]);
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            if (!correct) {
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                XCTAssert(@"Contacts failed to sort names by first, last");
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                break;
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            }
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        }
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    }
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}
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- (void)testSortingNamesByLastFirst
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{
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    NSComparator comparator = [Contact comparatorSortingNamesByFirstThenLast:NO];
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    NSArray<Contact *>*sortedContacts = [self.class contactArrayForNames:@[@[@"Mary Jo", @"Catlett"],
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                                                                           @[@"Daisy", @"Chain"],
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                                                                           @[@"", @"Daisy"],
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                                                                           @[@"Daisy", @"Duke"],
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                                                                           @[@"Mary", @"Oliver"],
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                                                                           @[@"Adam", @"Smith"],
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                                                                           @[@"James", @"Smith"],
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                                                                           @[@"Kevin", @"Smith"],
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                                                                           @[@"James", @"Van"],
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                                                                           @[@"James", @"Van Der Beek"],
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                                                                           @[@"Adam", @"West"],
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                                                                           @[@"Mae", @"West"],
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                                                                           ]];
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    NSUInteger numContacts = sortedContacts.count;
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    for (NSUInteger i = 0; i < 20; i++) {
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        NSArray *shuffledContacts = [self.class shuffleArray:sortedContacts];
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        NSArray *resortedContacts = [shuffledContacts sortedArrayUsingComparator:comparator];
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        for (NSUInteger j = 0; j < numContacts; j++) {
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            Contact *a = sortedContacts[j];
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            Contact *b = resortedContacts[j];
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            BOOL correct = ([a.firstName isEqualToString:b.firstName] && [a.lastName isEqualToString:b.lastName]);
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            if (!correct) {
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                XCTAssert(@"Contacts failed to sort names by last, first");
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                break;
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            }
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        }
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    }
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}
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+ (NSArray<Contact *> *)contactArrayForNames:(NSArray<NSArray<NSString *>*>*)namePairs
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{
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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    ABRecordID fakeRecordId = 0;
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#pragma clang diagnostic pop
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    NSMutableArray<Contact *>*contacts = [[NSMutableArray alloc] initWithCapacity:namePairs.count];
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    for (NSArray<NSString *>*namePair in namePairs) {
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        Contact *c = [[Contact alloc] initWithContactWithFirstName:namePair[0]
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                                                       andLastName:namePair[1]
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                                           andUserTextPhoneNumbers:@[]
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                                                          andImage:nil
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                                                      andContactID:fakeRecordId++];
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        [contacts addObject:c];
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    }
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    return [contacts copy]; // Return an immutable for good hygene
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}
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+ (NSArray*)shuffleArray:(NSArray *)array
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{
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    NSMutableArray *shuffled = [[NSMutableArray alloc] initWithArray:array];
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    for(NSUInteger i = [array count]; i > 1; i--) {
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        NSUInteger j = arc4random_uniform((uint32_t)i);
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        [shuffled exchangeObjectAtIndex:(i - 1) withObjectAtIndex:j];
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    }
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    return [shuffled copy]; // Return an immutable for good hygene
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}
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@end
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NS_ASSUME_NONNULL_END
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