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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "Core/FSTTimestamp.h"
#import <XCTest/XCTest.h>
#import "Util/FSTAssert.h"
#import "FSTHelpers.h"
NS_ASSUME_NONNULL_BEGIN
@interface FSTTimestampTests : XCTestCase
@end
@implementation FSTTimestampTests
- (void)testFromDate {
// Very carefully construct an NSDate that won't lose precision with its milliseconds.
NSDate *input = [NSDate dateWithTimeIntervalSinceReferenceDate:1.5];
FSTTimestamp *actual = [FSTTimestamp timestampWithDate:input];
static const int64_t kSecondsFromEpochToReferenceDate = 978307200;
XCTAssertEqual(kSecondsFromEpochToReferenceDate + 1, actual.seconds);
XCTAssertEqual(500000000, actual.nanos);
FSTTimestamp *expected =
[[FSTTimestamp alloc] initWithSeconds:(kSecondsFromEpochToReferenceDate + 1) nanos:500000000];
XCTAssertEqualObjects(expected, actual);
}
- (void)testSO8601String {
NSDate *date = FSTTestDate(1912, 4, 14, 23, 40, 0);
FSTTimestamp *timestamp =
[[FSTTimestamp alloc] initWithSeconds:(int64_t)date.timeIntervalSince1970 nanos:543000000];
XCTAssertEqualObjects(timestamp.ISO8601String, @"1912-04-14T23:40:00.543000000Z");
}
- (void)testISO8601String_withLowMilliseconds {
NSDate *date = FSTTestDate(1912, 4, 14, 23, 40, 0);
FSTTimestamp *timestamp =
[[FSTTimestamp alloc] initWithSeconds:(int64_t)date.timeIntervalSince1970 nanos:7000000];
XCTAssertEqualObjects(timestamp.ISO8601String, @"1912-04-14T23:40:00.007000000Z");
}
- (void)testISO8601String_withLowNanos {
FSTTimestamp *timestamp = [[FSTTimestamp alloc] initWithSeconds:0 nanos:1];
XCTAssertEqualObjects(timestamp.ISO8601String, @"1970-01-01T00:00:00.000000001Z");
}
- (void)testISO8601String_withNegativeSeconds {
FSTTimestamp *timestamp = [[FSTTimestamp alloc] initWithSeconds:-1 nanos:999999999];
XCTAssertEqualObjects(timestamp.ISO8601String, @"1969-12-31T23:59:59.999999999Z");
}
- (void)testCompare {
NSArray<FSTTimestamp *> *timestamps = @[
[[FSTTimestamp alloc] initWithSeconds:12344 nanos:999999999],
[[FSTTimestamp alloc] initWithSeconds:12345 nanos:0],
[[FSTTimestamp alloc] initWithSeconds:12345 nanos:000000001],
[[FSTTimestamp alloc] initWithSeconds:12345 nanos:99999999],
[[FSTTimestamp alloc] initWithSeconds:12345 nanos:100000000],
[[FSTTimestamp alloc] initWithSeconds:12345 nanos:100000001],
[[FSTTimestamp alloc] initWithSeconds:12346 nanos:0],
];
for (int i = 0; i < timestamps.count - 1; ++i) {
XCTAssertEqual(NSOrderedAscending, [timestamps[i] compare:timestamps[i + 1]]);
XCTAssertEqual(NSOrderedDescending, [timestamps[i + 1] compare:timestamps[i]]);
}
}
@end
NS_ASSUME_NONNULL_END
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