Speed and size testing for JSON, MessagePack, Plist and KeyedArchiver

SeaDataSpeedTests.m

// (C)opyright 2018-02-03 Dirk Holtwick, holtwick.it. All rights reserved.

#import <XCTest/XCTest.h>
#import "MPMessagePack.h"
#import "NSData+GZIP.h"

@interface SeaDataSpeedTests : XCTestCase

@end

#define LOOPS 10000
// 5
// 10000

@implementation SeaDataSpeedTests {
    NSDictionary *obj;
}

- (void)setUp {
//    id url = [[NSBundle bundleForClass:[self class]] URLForResource:@"Receipts" withExtension:@"json"];
//    obj = [NSJSONSerialization JSONObjectWithData:[NSData dataWithContentsOfURL:url]
//                                    options:0
//                                      error:nil];
    obj = @{ @"a": @1,
             @"b": @[ @2, @3],
             @"c": @"World",
             };
}


- (NSData *)toDataPlistBinary {
    return [NSPropertyListSerialization dataWithPropertyList:obj
                                                      format:NSPropertyListBinaryFormat_v1_0
                                                     options:0
                                                       error:nil];
}

- (NSData *)toDataPlistXML {
    return [NSPropertyListSerialization dataWithPropertyList:obj
                                                      format:NSPropertyListXMLFormat_v1_0
                                                     options:0
                                                       error:nil];
}

- (NSData *)toDataKeyedArchiver {
    return [NSKeyedArchiver archivedDataWithRootObject:obj];
}

- (NSData *)toDataJSON {
    return [NSJSONSerialization dataWithJSONObject:obj
                                           options:0
                                             error:nil];
}

- (NSData *)toDataMessagePack {
    return [MPMessagePackWriter writeObject:obj
                                      error:nil];
}

- (void)testPerformancePListXML {
    [self measureBlock:^{
        for (int i=0; i < LOOPS; i++) {
            [self toDataPlistXML];
        }
    }];
}

- (void)testPerformancePListBinary {
    [self measureBlock:^{
        for (int i=0; i < LOOPS; i++) {
            [self toDataPlistBinary];
        }
    }];
}

- (void)testPerformanceKeyedArchiver {
    [self measureBlock:^{
        for (int i=0; i < LOOPS; i++) {
            [self toDataKeyedArchiver];
        }
    }];
}

- (void)testPerformanceJSON {
    [self measureBlock:^{
        for (int i=0; i < LOOPS; i++) {
            [self toDataJSON];
        }
    }];
}

- (void)testPerformanceMessagePack {
    [self measureBlock:^{
        for (int i=0; i < LOOPS; i++) {
            [self toDataMessagePack];
        }
    }];
}

- (void)testSizes {
    id results =
    @{ @"PlistXML": [self toDataPlistXML],
       @"PlistBinary": [self toDataPlistBinary],
       @"KeyedArchiver": [self toDataKeyedArchiver],
       @"JSON": [self toDataJSON],
       @"MessagePack": [self toDataMessagePack] };
    
    double maxlen = 0;
    for (id key in results) {
        maxlen = MAX(maxlen, [results[key] length]);
    }
    for (id key in results) {
        id value = results[key];
        NSLog(@"%@\t%@\t%.2f%%",
              key,
              @([value length]),
              (100. * [value length] / maxlen));
        
        value = [value gzippedData];
        NSLog(@"%@ with GZip\t%@\t%.2f%%",
              key,
              @([value length]),
              (100. * [value length] / maxlen));

        
    }
}

@end