EBSSafeObjects

Sample Objective-C library for using common Foundation objects that may not be safe, such as nil, null, or empty values obtained from a server API.

Unit tests are implemented for each library method.

The included demonstration application provides examples of how to utilize the library in retrieving stock information from a server.

Although this library is useful on its own, the primary purpose for this project is to demonstrate unit testing techniques.

Library Class Methods

Safe Object Checks

+ (BOOL)isSafeObject:(id)object
+ (BOOL)isObject:(id)object safeKindOfClass:(Class)class

Non Empty Checks

+ (BOOL)isSafeNonEmptyArray:(id)object
+ (BOOL)isSafeNonEmptyDate:(id)object
+ (BOOL)isSafeNonEmptyDictionary:(id)object
+ (BOOL)isSafeNonEmptyNumber:(id)object
+ (BOOL)isSafeNonEmptyString:(id)object

Equality Checks

+ (BOOL)isArray:(id)firstObject safeEqualToArray:(id)secondObject
+ (BOOL)isDate:(id)firstObject safeEqualToDate:(id)secondObject
+ (BOOL)isDictionary:(id)firstObject safeEqualToDictionary:(id)secondObject
+ (BOOL)isNumber:(id)firstObject safeEqualToNumber:(id)secondObject
+ (BOOL)isString:(id)firstObject safeEqualToString:(id)secondObject

Non Empty Equality Checks

+ (BOOL)isArray:(id)firstObject safeNonEmptyEqualToArray:(id)secondObject
+ (BOOL)isDate:(id)firstObject safeNonEmptyEqualToDate:(id)secondObject
+ (BOOL)isDictionary:(id)firstObject safeNonEmptyEqualToDictionary:(id)secondObject
+ (BOOL)isNumber:(id)firstObject safeNonEmptyEqualToNumber:(id)secondObject
+ (BOOL)isString:(id)firstObject safeNonEmptyEqualToString:(id)secondObject