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      1 // Protocol Buffers - Google's data interchange format
      2 // Copyright 2015 Google Inc.  All rights reserved.
      3 // https://developers.google.com/protocol-buffers/
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     30 
     31 #import "GPBWellKnownTypes.h"
     32 
     33 #import <XCTest/XCTest.h>
     34 
     35 // A basically random interval into the future for testing with.
     36 static const NSTimeInterval kFutureOffsetInterval = 15000;
     37 
     38 // Nanosecond time accuracy
     39 static const NSTimeInterval kTimeAccuracy = 1e-9;
     40 
     41 @interface WellKnownTypesTest : XCTestCase
     42 @end
     43 
     44 @implementation WellKnownTypesTest
     45 
     46 - (void)testTimeStamp {
     47   // Test Creation.
     48   NSDate *date = [NSDate date];
     49   GPBTimestamp *timeStamp = [[GPBTimestamp alloc] initWithDate:date];
     50   NSDate *timeStampDate = timeStamp.date;
     51 
     52   // Comparing timeIntervals instead of directly comparing dates because date
     53   // equality requires the time intervals to be exactly the same, and the
     54   // timeintervals go through a bit of floating point error as they are
     55   // converted back and forth from the internal representation.
     56   XCTAssertEqualWithAccuracy(date.timeIntervalSince1970,
     57                              timeStampDate.timeIntervalSince1970,
     58                              kTimeAccuracy);
     59 
     60   NSTimeInterval time = [date timeIntervalSince1970];
     61   GPBTimestamp *timeStamp2 =
     62       [[GPBTimestamp alloc] initWithTimeIntervalSince1970:time];
     63   NSTimeInterval durationTime = timeStamp2.timeIntervalSince1970;
     64   XCTAssertEqualWithAccuracy(time, durationTime, kTimeAccuracy);
     65   [timeStamp release];
     66 
     67   // Test Mutation.
     68   date = [NSDate dateWithTimeIntervalSinceNow:kFutureOffsetInterval];
     69   timeStamp2.date = date;
     70   timeStampDate = timeStamp2.date;
     71   XCTAssertEqualWithAccuracy(date.timeIntervalSince1970,
     72                              timeStampDate.timeIntervalSince1970,
     73                              kTimeAccuracy);
     74 
     75   time = date.timeIntervalSince1970;
     76   timeStamp2.timeIntervalSince1970 = time;
     77   durationTime = timeStamp2.timeIntervalSince1970;
     78   XCTAssertEqualWithAccuracy(time, durationTime, kTimeAccuracy);
     79   [timeStamp2 release];
     80 }
     81 
     82 - (void)testDuration {
     83   // Test Creation.
     84   NSTimeInterval time = [[NSDate date] timeIntervalSince1970];
     85   GPBDuration *duration =
     86       [[GPBDuration alloc] initWithTimeIntervalSince1970:time];
     87   NSTimeInterval durationTime = duration.timeIntervalSince1970;
     88   XCTAssertEqualWithAccuracy(time, durationTime, kTimeAccuracy);
     89   [duration release];
     90 
     91   // Test Mutation.
     92   GPBDuration *duration2 =
     93       [[GPBDuration alloc] initWithTimeIntervalSince1970:time];
     94   NSDate *date = [NSDate dateWithTimeIntervalSinceNow:kFutureOffsetInterval];
     95   time = date.timeIntervalSince1970;
     96   duration2.timeIntervalSince1970 = time;
     97   durationTime = duration2.timeIntervalSince1970;
     98   XCTAssertEqualWithAccuracy(time, durationTime, kTimeAccuracy);
     99   [duration2 release];
    100 }
    101 
    102 @end
    103