delete useless code

Author: YangSen-qn

QiniuSDKTests/QNBase64Test.m

@@ -9,27 +9,6 @@
 #import "QiniuSDK.h"
 #import <XCTest/XCTest.h>
 
-@interface Demo : NSObject
-@property(nonatomic,   copy) NSString   *title;
-@property(nonatomic, strong) NSLock     *locker;
-@property(nonatomic, strong) NSArray    *object;
-@end
-@implementation Demo
--(instancetype)init{
-    if (self = [super init]) {
-        self.locker = [[NSLock alloc] init];
-    }
-    return self;
-}
--(NSArray *)object{
-//    [self.locker lock];
-    if (_object == nil) {
-        _object = @[self.title];
-    }
-//    [self.locker unlock];
-    return _object;
-}
-@end
 @interface QNBase64Test : XCTestCase
 
 @end
@@ -43,36 +22,6 @@ - (void)testEncode {
     XCTAssert([encode isEqual:@"5L2g5aW9Lys9"], @"encode: %@", encode);
 }
 
-
-- (void)testA {
-    for (int i=0; i<1000; i++) {
-        Demo *demo = [[Demo alloc] init];
-        __weak Demo *weak = demo;
-        void (^create)(int) = ^(int index) {
-            __strong Demo *strong = weak;
-//            Demo *strong = demo;
-            int ip = index;
-            NSLog(@">> %d",ip);
-            strong.title = [NSString stringWithFormat:@"== %d ==", ip];
-            NSLog(@"<< %@:%d", strong.object, ip);
-            NSLog(@"<< %@:%lu:%d", strong.object, (unsigned long)[strong.object count], ip);
-        };
-        
-        dispatch_group_t group = dispatch_group_create();
-        for (int j=0; j<10; j++) {
-            dispatch_group_enter(group);
-            dispatch_group_async(group, dispatch_get_global_queue(0, 0), ^{
-                dispatch_group_leave(group);
-                create(j);
-            });
-        }
-        
-        dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
-        
-        NSLog(@"== \n\n ==");
-    }
-}
-
 @end