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Adds JSONHelper methods to read numbers as NSNumber objects.

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This commit is contained in:
Tom Hicks
2020-09-17 00:26:58 -07:00
parent bc23b55429
commit 82625d4548
3 changed files with 117 additions and 0 deletions
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86
MonsterCardsTests/Helpers/JSONHelperTests.m
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@@ -144,4 +144,90 @@ NSArray* readJSONArrayFromString(NSString *jsonString) {
XCTAssertEqualObjects(_jsonStringValue, readString);
}
#pragma mark - Integers in Dictionaries
- (void)testReadIntegerFromDictionaryReturnsNilIfKeyNotPresent {
NSString *jsonString = [NSString stringWithFormat:@"{%@}", _jsonStringFragment];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSNumber *readNumber = [JSONHelper readNumberFromDictionary:jsonRoot forKey:_jsonIntegerKey];
XCTAssertNil(readNumber);
}
- (void)testReadIntegerFromDictionaryWithDefaultReturnsDefaultIfKeyNotPresent {
NSString *jsonString = [NSString stringWithFormat:@"{%@}", _jsonStringFragment];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSNumber *readNumber = [JSONHelper readNumberFromDictionary:jsonRoot forKey:_jsonIntegerKey withDefaultValue:_jsonIntegerValue];
XCTAssertEqualObjects(_jsonIntegerValue, readNumber);
}
- (void) testReadIntegerFromDictionaryReturnsCorrectValue {
NSString *jsonString = [NSString stringWithFormat:@"{%@}", _jsonIntegerFragment];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSNumber *readNumber = [JSONHelper readNumberFromDictionary:jsonRoot forKey:_jsonIntegerKey];
XCTAssertEqualObjects(_jsonIntegerValue, readNumber);
}
- (void)testReadIntegerFromDictionaryWithDefaultReturnsCorrectValue {
NSString *jsonString = [NSString stringWithFormat:@"{%@}", _jsonIntegerFragment];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSNumber *readNumber = [JSONHelper readNumberFromDictionary:jsonRoot forKey:_jsonIntegerKey withDefaultValue:@67890];
XCTAssertEqualObjects(_jsonIntegerValue, readNumber);
}
- (void) testReadIntegerFromDictionaryReturnsNilIfWrongType {
NSString *jsonString = [NSString stringWithFormat:@"{\"%@\":\"%@\"}", _jsonIntegerKey, _jsonStringValue];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSNumber *readNumber = [JSONHelper readNumberFromDictionary:jsonRoot forKey:_jsonIntegerKey];
XCTAssertNil(readNumber);
}
#pragma mark - Integers in Arrays
- (void)testReadIntegerFromArrayReturnsNilIfNotAnInteger {
NSString *jsonString = [NSString stringWithFormat:@"[\"%@\"]", _jsonStringValue];
NSArray *jsonRoot = readJSONArrayFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSNumber *readNumber = [JSONHelper readNumberFromArray:jsonRoot forIndex:0];
XCTAssertNil(readNumber);
}
- (void)testReadIntegerFromArrayWithDefaultReturnsDefaultValueIfNotAnInteger {
NSString *jsonString = [NSString stringWithFormat:@"[\"%@\"]", _jsonStringValue];
NSArray *jsonRoot = readJSONArrayFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSNumber *readNumber = [JSONHelper readNumberFromArray:jsonRoot forIndex:0 withDefaultValue:_jsonIntegerValue];
XCTAssertEqualObjects(_jsonIntegerValue, readNumber);
}
- (void)testReadIntegerFromArrayThrowsIfIndexOutOfRange {
// TODO: Decide if this should throw or return nil
NSString *jsonString = @"[]";
NSArray *jsonRoot = readJSONArrayFromString(jsonString);
XCTAssertNotNil(jsonRoot);
XCTAssertThrows([JSONHelper readNumberFromArray:jsonRoot forIndex:0]);
XCTAssertThrows([JSONHelper readNumberFromArray:jsonRoot forIndex:-1]);
}
- (void)testReadIntegerFromArrayReturnsCorrectValue {
NSString *jsonString = [NSString stringWithFormat:@"[%@]", _jsonIntegerValue];
NSArray *jsonRoot = readJSONArrayFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSNumber *readNumber = [JSONHelper readNumberFromArray:jsonRoot forIndex:0];
XCTAssertEqualObjects(_jsonIntegerValue, readNumber);
}
@end