Adds JSONHelper methods to make parsing json from strings and NSData objects easier.

2020-09-17 12:58:59 -07:00
parent 8f52940d98
commit c224c51f84
3 changed files with 157 additions and 0 deletions
--- a/MonsterCardsTests/Helpers/JSONHelperTests.m
+++ b/MonsterCardsTests/Helpers/JSONHelperTests.m
@@ -594,4 +594,104 @@ NSArray* readJSONArrayFromString(NSString *jsonString) {
    XCTAssertEqualObjects(_jsonArrayValue, readValue);
 }

+#pragma mark - JSON parsing
+
+- (void)testParseJSONDataReturnsDictionary {
+    NSString *jsonString = @"{\"a\":1,\"b\":2}";
+    NSData* jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+    
+    id parsedResult = [JSONHelper parseJSONData:jsonData];
+    XCTAssertNotNil(parsedResult);
+    XCTAssertTrue([parsedResult isKindOfClass:[NSDictionary class]]);
+}
+
+- (void)testParseJSONDataReturnsArray {
+    NSString *jsonString = @"[\"a\",1,\"b\",2]";
+    NSData* jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+    
+    id parsedResult = [JSONHelper parseJSONData:jsonData];
+    XCTAssertNotNil(parsedResult);
+    XCTAssertTrue([parsedResult isKindOfClass:[NSArray class]]);
+}
+
+- (void)testParseJSONDataAsDictionaryReturnsDictionary {
+    NSString *jsonString = @"{\"a\":1,\"b\":2}";
+    NSData* jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+    
+    NSDictionary *parsedResult = [JSONHelper parseJSONDataAsDictionary:jsonData];
+    XCTAssertNotNil(parsedResult);
+    XCTAssertTrue([parsedResult isKindOfClass:[NSDictionary class]]);
+}
+
+- (void)testParseJSONDataAsDictionaryReturnsNilIfNotDictionary {
+    NSString *jsonString = @"[\"a\",1,\"b\",2]";
+    NSData* jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+    
+    id parsedResult = [JSONHelper parseJSONDataAsDictionary:jsonData];
+    XCTAssertNil(parsedResult);
+}
+
+- (void)testParseJSONDataAsArrayReturnsArray {
+    NSString *jsonString = @"[\"a\",1,\"b\",2]";
+    NSData* jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+    
+    id parsedResult = [JSONHelper parseJSONDataAsArray:jsonData];
+    XCTAssertNotNil(parsedResult);
+    XCTAssertTrue([parsedResult isKindOfClass:[NSArray class]]);
+}
+
+- (void)testParseJSONDataAsArrayReturnsNilIfNotArray {
+    NSString *jsonString = @"{\"a\":1,\"b\":2}";
+    NSData* jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+    
+    id parsedResult = [JSONHelper parseJSONDataAsArray:jsonData];
+    XCTAssertNil(parsedResult);
+}
+
+- (void)testParseJSONStringReturnsDictionary {
+    NSString *jsonString = @"{\"a\":1,\"b\":2}";
+    
+    id parsedResult = [JSONHelper parseJSONString:jsonString];
+    XCTAssertNotNil(parsedResult);
+    XCTAssertTrue([parsedResult isKindOfClass:[NSDictionary class]]);
+}
+
+- (void)testParseJSONStringReturnsArray {
+    NSString *jsonString = @"[\"a\",1,\"b\",2]";
+    
+    id parsedResult = [JSONHelper parseJSONString:jsonString];
+    XCTAssertNotNil(parsedResult);
+    XCTAssertTrue([parsedResult isKindOfClass:[NSArray class]]);
+}
+
+- (void)testParseJSONStringAsDictionaryReturnsDictionary {
+    NSString *jsonString = @"{\"a\":1,\"b\":2}";
+    
+    NSDictionary *parsedResult = [JSONHelper parseJSONStringAsDictionary:jsonString];
+    XCTAssertNotNil(parsedResult);
+    XCTAssertTrue([parsedResult isKindOfClass:[NSDictionary class]]);
+}
+
+- (void)testParseJSONStringAsDictionaryReturnsNilIfNotDictionary {
+    NSString *jsonString = @"[\"a\",1,\"b\",2]";
+    
+    id parsedResult = [JSONHelper parseJSONStringAsDictionary:jsonString];
+    XCTAssertNil(parsedResult);
+}
+
+- (void)testParseJSONStringAsArrayReturnsArray {
+    NSString *jsonString = @"[\"a\",1,\"b\",2]";
+    
+    id parsedResult = [JSONHelper parseJSONStringAsArray:jsonString];
+    XCTAssertNotNil(parsedResult);
+    XCTAssertTrue([parsedResult isKindOfClass:[NSArray class]]);
+}
+
+- (void)testParseJSONStringAsArrayReturnsNilIfNotArray {
+    NSString *jsonString = @"{\"a\":1,\"b\":2}";
+    
+    id parsedResult = [JSONHelper parseJSONStringAsArray:jsonString];
+    XCTAssertNil(parsedResult);
+}
+
@end