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//
// GTMNSEnumerator+FilterTest.m
//
// Copyright 2007-2008 Google Inc.
//
// 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 <SenTestingKit/SenTestingKit.h>
#import "GTMNSEnumerator+Filter.h"
@interface GTMNSEnumerator_FilterTest : SenTestCase
@end
@implementation GTMNSEnumerator_FilterTest
// test using an NSSet enumerator.
- (void)testEnumeratorByMakingEachObjectPerformSelector {
NSSet *numbers = [NSSet setWithObjects: @"1", @"2", @"3", nil];
NSEnumerator *e = [[numbers objectEnumerator]
gtm_enumeratorByMakingEachObjectPerformSelector:@selector(stringByAppendingString:)
withObject:@" "];
NSMutableSet *trailingSpaces = [NSMutableSet set];
id obj;
while (nil != (obj = [e nextObject])) {
[trailingSpaces addObject:obj];
}
NSSet *trailingSpacesGood = [NSSet setWithObjects: @"1 ", @"2 ", @"3 ", nil];
STAssertEqualObjects(trailingSpaces, trailingSpacesGood, @"");
NSSet *empty = [NSSet set];
NSEnumerator *ee = [[empty objectEnumerator]
gtm_enumeratorByMakingEachObjectPerformSelector:@selector(stringByAppendingString:)
withObject:@" "];
NSMutableSet *emptySpaces = [NSMutableSet set];
while (nil != (obj = [ee nextObject])) {
[emptySpaces addObject:obj];
}
STAssertEqualObjects(empty, emptySpaces, @"");
}
// test using an NSDictionary enumerator.
- (void)testFilteredEnumeratorByMakingEachObjectPerformSelector {
NSDictionary *numbers = [NSDictionary dictionaryWithObjectsAndKeys: @"1", @"1", @"", @"", @"3", @"3", nil];
// |length| filters out length 0 objects
NSEnumerator *e = [[numbers objectEnumerator]
gtm_filteredEnumeratorByMakingEachObjectPerformSelector:@selector(length)
withObject:nil];
NSArray *lengths = [e allObjects];
NSArray *lengthsGood = [NSArray arrayWithObjects: @"1", @"3", nil];
STAssertEqualObjects(lengths, lengthsGood, @"");
}
@end
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