react-native/Examples/UIExplorer/UIExplorerUnitTests/RCTJSONTests.m

133 lines
4.2 KiB
Objective-C

/**
* The examples provided by Facebook are for non-commercial testing and
* evaluation purposes only.
*
* Facebook reserves all rights not expressly granted.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#import <XCTest/XCTest.h>
#import <React/RCTUtils.h>
@interface RCTJSONTests : XCTestCase
@end
@implementation RCTJSONTests
- (void)testEncodingObject
{
NSDictionary<NSString *, id> *obj = @{@"foo": @"bar"};
NSString *json = @"{\"foo\":\"bar\"}";
XCTAssertEqualObjects(json, RCTJSONStringify(obj, NULL));
}
- (void)testEncodingArray
{
NSArray<id> *array = @[@"foo", @"bar"];
NSString *json = @"[\"foo\",\"bar\"]";
XCTAssertEqualObjects(json, RCTJSONStringify(array, NULL));
}
- (void)testEncodingString
{
NSString *text = @"Hello\nWorld";
NSString *json = @"\"Hello\\nWorld\"";
XCTAssertEqualObjects(json, RCTJSONStringify(text, NULL));
}
- (void)testEncodingNSError
{
NSError *underlyingError = [NSError errorWithDomain:@"underlyingDomain" code:421 userInfo:nil];
NSError *err = [NSError errorWithDomain:@"domain" code:68 userInfo:@{@"NSUnderlyingError": underlyingError}];
// An assertion on the full object would be too brittle since it contains an iOS stack trace
// so we are relying on the behavior of RCTJSONParse, which is tested below.
NSDictionary<NSString *, id> *jsonObject = RCTJSErrorFromNSError(err);
NSString *jsonString = RCTJSONStringify(jsonObject, NULL);
NSDictionary<NSString *, id> *json = RCTJSONParse(jsonString, NULL);
XCTAssertEqualObjects(json[@"code"], @"EDOMAIN68");
XCTAssertEqualObjects(json[@"message"], @"The operation couldn\u2019t be completed. (domain error 68.)");
XCTAssertEqualObjects(json[@"domain"], @"domain");
XCTAssertEqualObjects(json[@"userInfo"][@"NSUnderlyingError"][@"code"], @"421");
XCTAssertEqualObjects(json[@"userInfo"][@"NSUnderlyingError"][@"message"], @"underlying error");
XCTAssertEqualObjects(json[@"userInfo"][@"NSUnderlyingError"][@"domain"], @"underlyingDomain");
}
- (void)testDecodingObject
{
NSDictionary<NSString *, id> *obj = @{@"foo": @"bar"};
NSString *json = @"{\"foo\":\"bar\"}";
XCTAssertEqualObjects(obj, RCTJSONParse(json, NULL));
}
- (void)testDecodingArray
{
NSArray<id> *array = @[@"foo", @"bar"];
NSString *json = @"[\"foo\",\"bar\"]";
XCTAssertEqualObjects(array, RCTJSONParse(json, NULL));
}
- (void)testDecodingString
{
NSString *text = @"Hello\nWorld";
NSString *json = @"\"Hello\\nWorld\"";
XCTAssertEqualObjects(text, RCTJSONParse(json, NULL));
}
- (void)testDecodingMutableArray
{
NSString *json = @"[1,2,3]";
NSMutableArray<id> *array = RCTJSONParseMutable(json, NULL);
XCTAssertNoThrow([array addObject:@4]);
XCTAssertEqualObjects(array, (@[@1, @2, @3, @4]));
}
- (void)testLeadingWhitespace
{
NSDictionary<NSString *, id> *obj = @{@"foo": @"bar"};
NSString *json = @" \r\n\t{\"foo\":\"bar\"}";
XCTAssertEqualObjects(obj, RCTJSONParse(json, NULL));
}
- (void)testNotJSONSerializable
{
NSDictionary<NSString *, id> *obj = @{@"foo": [NSDate date]};
NSString *json = @"{\"foo\":null}";
XCTAssertEqualObjects(json, RCTJSONStringify(obj, NULL));
}
- (void)testNaN
{
NSDictionary<NSString *, id> *obj = @{@"foo": @(NAN)};
NSString *json = @"{\"foo\":0}";
XCTAssertEqualObjects(json, RCTJSONStringify(obj, NULL));
}
- (void)testNotUTF8Convertible
{
//see https://gist.github.com/0xced/56035d2f57254cf518b5
NSString *string = [[NSString alloc] initWithBytes:"\xd8\x00" length:2 encoding:NSUTF16StringEncoding];
NSDictionary<NSString *, id> *obj = @{@"foo": string};
NSString *json = @"{\"foo\":null}";
XCTAssertEqualObjects(json, RCTJSONStringify(obj, NULL));
}
- (void)testErrorPointer
{
NSDictionary<NSString *, id> *obj = @{@"foo": [NSDate date]};
NSError *error;
XCTAssertNil(RCTJSONStringify(obj, &error));
XCTAssertNotNil(error);
}
@end