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Adds JSONHelper methods to read dictionaries.

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This commit is contained in:
Tom Hicks
2020-09-17 01:32:52 -07:00
parent 9bf1595f29
commit 555efac0c4
3 changed files with 125 additions and 0 deletions
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95
MonsterCardsTests/Helpers/JSONHelperTests.m
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@@ -23,6 +23,10 @@
NSString *_jsonBooleanKey;
BOOL _jsonBooleanValue;
NSString *_jsonBooleanFragment;
NSString *_jsonDictionaryKey;
NSDictionary *_jsonDictionaryValue;
NSString *_jsonDictionaryFragment;
NSString *_jsonDictionaryStringValue;
}
NSString* escapeStringForJSON(NSString *unescaped) {
@@ -59,6 +63,10 @@ NSArray* readJSONArrayFromString(NSString *jsonString) {
_jsonBooleanKey = @"my_bool";
_jsonBooleanValue = YES;
_jsonBooleanFragment = [NSString stringWithFormat:@"\"%@\":true", escapeStringForJSON(_jsonBooleanKey)];
_jsonDictionaryKey = @"my_dictionary";
_jsonDictionaryValue = [NSDictionary dictionaryWithObjectsAndKeys:_jsonStringValue, _jsonStringKey, nil];
_jsonDictionaryStringValue = [NSString stringWithFormat:@"{%@}", _jsonStringFragment];
_jsonDictionaryFragment = [NSString stringWithFormat:@"\"%@\":%@", escapeStringForJSON(_jsonDictionaryKey), _jsonDictionaryStringValue];
}
- (void)tearDown {
@@ -242,6 +250,54 @@ NSArray* readJSONArrayFromString(NSString *jsonString) {
XCTAssertEqual(0, readNumber);
}
#pragma mark - Dictionaries in Dictionaries
- (void)testReadDictionaryFromDictionaryReturnsNilIfKeyNotPresent {
NSString *jsonString = [NSString stringWithFormat:@"{%@}", _jsonStringFragment];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSDictionary *readValue = [JSONHelper readDictionaryFromDictionary:jsonRoot forKey:_jsonDictionaryKey];
XCTAssertNil(readValue);
}
- (void)testReadDictionaryFromDictionaryWithDefaultReturnsDefaultIfKeyNotPresent{
NSString *jsonString = [NSString stringWithFormat:@"{%@}", _jsonStringFragment];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSDictionary *readValue = [JSONHelper readDictionaryFromDictionary:jsonRoot forKey:_jsonDictionaryKey withDefaultValue:@{}];
XCTAssertEqualObjects(@{}, readValue);
}
- (void)testReadDictionaryFromDictionaryReturnsCorrectValue {
NSString *jsonString = [NSString stringWithFormat:@"{%@}", _jsonDictionaryFragment];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSDictionary *readValue = [JSONHelper readDictionaryFromDictionary:jsonRoot forKey:_jsonDictionaryKey];
XCTAssertEqualObjects(_jsonDictionaryValue, readValue);
}
- (void)testReadDictionaryFromDictionaryWithDefaultReturnsCorrectValue {
NSString *jsonString = [NSString stringWithFormat:@"{%@}", _jsonIntegerFragment];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSDictionary *readValue = [JSONHelper readDictionaryFromDictionary:jsonRoot forKey:_jsonDictionaryKey withDefaultValue:@{}];
XCTAssertEqualObjects(@{}, readValue);
}
- (void)testReadDictionaryFromDictionaryReturnsNilIfWrongType {
NSString *jsonString = [NSString stringWithFormat:@"{\"%@\":\"%@\"}", _jsonDictionaryKey, _jsonStringValue];
NSDictionary *jsonRoot = readJSONDictionaryFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSDictionary *readValue = [JSONHelper readDictionaryFromDictionary:jsonRoot forKey:_jsonDictionaryKey];
XCTAssertNil(readValue);
}
#pragma mark - Integers in Arrays
- (void)testReadIntegerFromArrayReturnsNilIfNotAnInteger {
@@ -404,4 +460,43 @@ NSArray* readJSONArrayFromString(NSString *jsonString) {
XCTAssertEqual(_jsonBooleanValue, readValue);
}
#pragma mark - Dictionaries in Arrays
- (void)testReadDictionaryFromArrayReturnsNilIfNotCoercable {
NSString *jsonString = [NSString stringWithFormat:@"[\"%@\"]", _jsonStringValue];
NSArray *jsonRoot = readJSONArrayFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSDictionary *readValue = [JSONHelper readDictionaryFromArray:jsonRoot forIndex:0];
XCTAssertNil(readValue);
}
- (void)testReadDictionaryFromArrayWithDefaultReturnsDefaultValueIfNotCoercable {
NSString *jsonString = [NSString stringWithFormat:@"[\"%@\"]", _jsonStringValue];
NSArray *jsonRoot = readJSONArrayFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSDictionary *readValue = [JSONHelper readDictionaryFromArray:jsonRoot forIndex:0 withDefaultValue:@{}];
XCTAssertEqualObjects(@{}, readValue);
}
- (void)testReadDictionaryFromArrayThrowsIfIndexOutOfRange {
// TODO: Decide if this should throw or return nil
NSString *jsonString = @"[]";
NSArray *jsonRoot = readJSONArrayFromString(jsonString);
XCTAssertNotNil(jsonRoot);
XCTAssertThrows([JSONHelper readDictionaryFromArray:jsonRoot forIndex:0]);
XCTAssertThrows([JSONHelper readDictionaryFromArray:jsonRoot forIndex:-1]);
}
- (void)testReadDictionaryFromArrayReturnsCorrectValue {
NSString *jsonString = [NSString stringWithFormat:@"[%@]", _jsonDictionaryStringValue];
NSArray *jsonRoot = readJSONArrayFromString(jsonString);
XCTAssertNotNil(jsonRoot);
NSDictionary *readValue = [JSONHelper readDictionaryFromArray:jsonRoot forIndex:0];
XCTAssertEqualObjects(_jsonDictionaryValue, readValue);
}
@end