Tests/Unit Tests/DPDictionaryTests.m

   1 //
   2 //  DPDictionaryTests.m
   3 //  HigherOrderMessaging
   4 //
   5 //  Created by Ofri Wolfus on 22/05/07.
   6 //  Copyright 2007 Ofri Wolfus. All rights reserved.
   7 //
   8
   9 #import "DPDictionaryTests.h"
  10 #import "DPCollectionEnumeration.h"
  11
  12
  13 @implementation DPDictionaryTests
  14
  15 //=============================================
  16 // NOTE: Tests are executed from the bottom up
  17 //=============================================
  18
  19 - (BOOL)testCollectEach {
  20         NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1",
  21                                                                                                                                         @"b", @"2",
  22                                                                                                                                         @"c", @"3", nil];
  23         NSSet *set = [NSSet setWithObjects:@"1", @"2", @"3", nil];
  24         NSDictionary *result = [NSDictionary dictionaryWithObjectsAndKeys:@"a1", @"1",
  25                                                                                                                                           @"b2", @"2",
  26                                                                                                                                           @"c3", @"3", nil];
  27
  28         return [[dict collect:MSG(stringByAppendingString:[set each])] isEqualToDictionary:result];
  29 }
  30
  31 - (BOOL)testCollect {
  32         NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1",
  33                 @"b", @"2",
  34                 @"c", @"3", nil];
  35         NSDictionary *result = [NSDictionary dictionaryWithObjectsAndKeys:@"A", @"1",
  36                 @"B", @"2",
  37                 @"C", @"3", nil];
  38
  39         return [[dict collect:MSG(capitalizedString)] isEqualToDictionary:result];
  40 }
  41
  42 //=================================================================
  43 // NOTE: All select/find + each combinations are meaningless
  44 // for dictionaries as the order of objects in a dictionary
  45 // can not be predicted.
  46 //=================================================================
  47
  48 // There's no need to fully test rejectWhere: as it uses the
  49 // same implementation of selectWhere:
  50 - (BOOL)testRejectWhere {
  51         NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1",
  52                 @"b", @"2",
  53                 @"c", @"3", nil];
  54         NSDictionary *result = [NSDictionary dictionaryWithObjectsAndKeys:@"b", @"2", @"c", @"3", nil];
  55
  56         return [[dict rejectWhere:MSG(hasPrefix:@"a"), nil] isEqualToDictionary:result];
  57 }
  58
  59 - (BOOL)testSelectWhere_twoMessages {
  60         NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1",
  61                 @"b", @"2",
  62                 @"abc", @"3", nil];
  63         NSDictionary *result = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1", @"abc", @"3", nil];
  64
  65         return [[dict selectWhere:MSG(capitalizedString), MSG(hasPrefix:@"A"), nil] isEqualToDictionary:result];
  66 }
  67
  68 - (BOOL)testSelectWhere_oneMessage {
  69         NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1", @"b", @"2",
  70                 @"abc", @"3", nil];
  71         NSDictionary *result = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1", @"abc", @"3", nil];
  72
  73         return [[dict selectWhere:MSG(hasPrefix:@"a"), nil] isEqualToDictionary:result];
  74 }
  75
  76 - (BOOL)testFindObjectWhere_twoMessages {
  77         NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1", @"b", @"2",
  78                 @"abc", @"3", nil];
  79         return [[dict findObjectWhere:MSG(capitalizedString), MSG(hasPrefix:@"B"), nil] isEqualToString:@"b"];
  80 }
  81
  82 - (BOOL)testFindObjectWhere_oneMessage {
  83         NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"a", @"1", @"b", @"2",
  84                 @"abc", @"3", nil];
  85         return [[dict findObjectWhere:MSG(hasPrefix:@"b"), nil] isEqualToString:@"b"];
  86 }
  87
  88 @end