79 lines
2.0 KiB
Objective-C
79 lines
2.0 KiB
Objective-C
// OCHamcrest by Jon Reid, https://qualitycoding.org/
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// Copyright 2019 hamcrest.org. See LICENSE.txt
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#import "HCStringContainsInOrder.h"
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#import "HCCollect.h"
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static void requireElementsToBeStrings(NSArray *array)
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{
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for (id element in array)
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{
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if (![element isKindOfClass:[NSString class]])
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{
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@throw [NSException exceptionWithName:@"NotAString"
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reason:@"Arguments must be strings"
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userInfo:nil];
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}
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}
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}
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@interface HCStringContainsInOrder ()
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@property (nonatomic, copy, readonly) NSArray<NSString *> *substrings;
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@end
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@implementation HCStringContainsInOrder
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- (instancetype)initWithSubstrings:(NSArray<NSString *> *)substrings
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{
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self = [super init];
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if (self)
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{
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requireElementsToBeStrings(substrings);
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_substrings = [substrings copy];
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}
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return self;
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}
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- (BOOL)matches:(nullable id)item
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{
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if (![item isKindOfClass:[NSString class]])
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return NO;
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NSRange searchRange = NSMakeRange(0, [item length]);
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for (NSString *substring in self.substrings)
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{
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NSRange substringRange = [item rangeOfString:substring options:0 range:searchRange];
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if (substringRange.location == NSNotFound)
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return NO;
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searchRange.location = substringRange.location + substringRange.length;
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searchRange.length = [item length] - searchRange.location;
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}
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return YES;
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}
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- (void)describeTo:(id <HCDescription>)description
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{
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[description appendList:self.substrings start:@"a string containing " separator:@", " end:@" in order"];
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}
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@end
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id HC_stringContainsInOrderIn(NSArray<NSString *> *substrings)
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{
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return [[HCStringContainsInOrder alloc] initWithSubstrings:substrings];
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}
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id HC_stringContainsInOrder(NSString *substrings, ...)
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{
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va_list args;
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va_start(args, substrings);
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NSArray *array = HCCollectItems(substrings, args);
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va_end(args);
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return HC_stringContainsInOrderIn(array);
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}
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