<?php

/*
 * This file is part of the Carbon package.
 *
 * (c) Brian Nesbitt <brian@nesbot.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

use Carbon\Carbon;

class DiffTest extends TestFixture
{
    public function testDiffInYearsPositive()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1, $dt->diffInYears($dt->copy()->addYear()));
    }
    public function testDiffInYearsNegativeWithSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(-1, $dt->diffInYears($dt->copy()->subYear(), false));
    }
    public function testDiffInYearsNegativeNoSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1, $dt->diffInYears($dt->copy()->subYear()));
    }
    public function testDiffInYearsVsDefaultNow()
    {
        $this->assertSame(1, Carbon::now()->subYear()->diffInYears());
    }
    public function testDiffInYearsEnsureIsTruncated()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1, $dt->diffInYears($dt->copy()->addYear()->addMonths(7)));
    }

    public function testDiffInMonthsPositive()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(13, $dt->diffInMonths($dt->copy()->addYear()->addMonth()));
    }
    public function testDiffInMonthsNegativeWithSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(-11, $dt->diffInMonths($dt->copy()->subYear()->addMonth(), false));
    }
    public function testDiffInMonthsNegativeNoSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(11, $dt->diffInMonths($dt->copy()->subYear()->addMonth()));
    }
    public function testDiffInMonthsVsDefaultNow()
    {
        $this->assertSame(12, Carbon::now()->subYear()->diffInMonths());
    }
    public function testDiffInMonthsEnsureIsTruncated()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1, $dt->diffInMonths($dt->copy()->addMonth()->addDays(16)));
    }

    public function testDiffInDaysPositive()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(366, $dt->diffInDays($dt->copy()->addYear()));
    }
    public function testDiffInDaysNegativeWithSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(-365, $dt->diffInDays($dt->copy()->subYear(), false));
    }
    public function testDiffInDaysNegativeNoSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(365, $dt->diffInDays($dt->copy()->subYear()));
    }
    public function testDiffInDaysVsDefaultNow()
    {
        $this->assertSame(7, Carbon::now()->subWeek()->diffInDays());
    }
    public function testDiffInDaysEnsureIsTruncated()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1, $dt->diffInDays($dt->copy()->addDay()->addHours(13)));
    }

    public function testDiffInHoursPositive()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(26, $dt->diffInHours($dt->copy()->addDay()->addHours(2)));
    }
    public function testDiffInHoursNegativeWithSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(-22, $dt->diffInHours($dt->copy()->subDay()->addHours(2), false));
    }
    public function testDiffInHoursNegativeNoSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(22, $dt->diffInHours($dt->copy()->subDay()->addHours(2)));
    }
    public function testDiffInHoursVsDefaultNow()
    {
        $this->assertSame(48, Carbon::now()->subDays(2)->diffInHours());
    }
    public function testDiffInHoursEnsureIsTruncated()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1, $dt->diffInHours($dt->copy()->addHour()->addMinutes(31)));
    }

    public function testDiffInMinutesPositive()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(62, $dt->diffInMinutes($dt->copy()->addHour()->addMinutes(2)));
    }
    public function testDiffInMinutesPositiveAlot()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1502, $dt->diffInMinutes($dt->copy()->addHours(25)->addMinutes(2)));
    }
    public function testDiffInMinutesNegativeWithSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(-58, $dt->diffInMinutes($dt->copy()->subHour()->addMinutes(2), false));
    }
    public function testDiffInMinutesNegativeNoSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(58, $dt->diffInMinutes($dt->copy()->subHour()->addMinutes(2)));
    }
    public function testDiffInMinutesVsDefaultNow()
    {
        $this->assertSame(60, Carbon::now()->subHour()->diffInMinutes());
    }
    public function testDiffInMinutesEnsureIsTruncated()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1, $dt->diffInMinutes($dt->copy()->addMinute()->addSeconds(31)));
    }

    public function testDiffInSecondsPositive()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(62, $dt->diffInSeconds($dt->copy()->addMinute()->addSeconds(2)));
    }
    public function testDiffInSecondsPositiveAlot()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(7202, $dt->diffInSeconds($dt->copy()->addHours(2)->addSeconds(2)));
    }
    public function testDiffInSecondsNegativeWithSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(-58, $dt->diffInSeconds($dt->copy()->subMinute()->addSeconds(2), false));
    }
    public function testDiffInSecondsNegativeNoSign()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(58, $dt->diffInSeconds($dt->copy()->subMinute()->addSeconds(2)));
    }
    public function testDiffInSecondsVsDefaultNow()
    {
        $this->assertSame(3600, Carbon::now()->subHour()->diffInSeconds());
    }
    public function testDiffInSecondsEnsureIsTruncated()
    {
        $dt = Carbon::createFromDate(2000, 1, 1);
        $this->assertSame(1, $dt->diffInSeconds($dt->copy()->addSeconds(1.9)));
    }

    public function testDiffInSecondsWithTimezones()
    {
        $dtOttawa = Carbon::createFromDate(2000, 1, 1, 'America/Toronto');
        $dtVancouver = Carbon::createFromDate(2000, 1, 1, 'America/Vancouver');
        $this->assertSame(3*60*60, $dtOttawa->diffInSeconds($dtVancouver));
    }
    public function testDiffInSecondsWithTimezonesAndVsDefault()
    {
        $dt = Carbon::now('America/Vancouver');
        $this->assertSame(0, $dt->diffInSeconds());
    }

    public function testDiffForHumansNowAndSecond()
    {
        $d = Carbon::now();
        $this->assertSame('1 second ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndSecondWithTimezone()
    {
        $d = Carbon::now('America/Vancouver');
        $this->assertSame('1 second ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndSeconds()
    {
        $d = Carbon::now()->subSeconds(2);
        $this->assertSame('2 seconds ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyMinute()
    {
        $d = Carbon::now()->subSeconds(59);
        $this->assertSame('59 seconds ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndMinute()
    {
        $d = Carbon::now()->subMinute();
        $this->assertSame('1 minute ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndMinutes()
    {
        $d = Carbon::now()->subMinutes(2);
        $this->assertSame('2 minutes ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyHour()
    {
        $d = Carbon::now()->subMinutes(59);
        $this->assertSame('59 minutes ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndHour()
    {
        $d = Carbon::now()->subHour();
        $this->assertSame('1 hour ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndHours()
    {
        $d = Carbon::now()->subHours(2);
        $this->assertSame('2 hours ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyDay()
    {
        $d = Carbon::now()->subHours(23);
        $this->assertSame('23 hours ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndDay()
    {
        $d = Carbon::now()->subDay();
        $this->assertSame('1 day ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndDays()
    {
        $d = Carbon::now()->subDays(2);
        $this->assertSame('2 days ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyWeek()
    {
        $d = Carbon::now()->subDays(6);
        $this->assertSame('6 days ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndWeek()
    {
        $d = Carbon::now()->subWeek();
        $this->assertSame('1 week ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndWeeks()
    {
        $d = Carbon::now()->subWeeks(2);
        $this->assertSame('2 weeks ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyMonth()
    {
        $d = Carbon::now()->subWeeks(3);
        $this->assertSame('3 weeks ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndMonth()
    {
        $d = Carbon::now()->subWeeks(4);
        $this->assertSame('1 month ago', $d->diffForHumans());
        $d = Carbon::now()->subMonth();
        $this->assertSame('1 month ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndMonths()
    {
        $d = Carbon::now()->subMonths(2);
        $this->assertSame('2 months ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyYear()
    {
        $d = Carbon::now()->subMonths(11);
        $this->assertSame('11 months ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndYear()
    {
        $d = Carbon::now()->subYear();
        $this->assertSame('1 year ago', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndYears()
    {
        $d = Carbon::now()->subYears(2);
        $this->assertSame('2 years ago', $d->diffForHumans());
    }

    public function testDiffForHumansNowAndFutureSecond()
    {
        $d = Carbon::now()->addSecond();
        $this->assertSame('1 second from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureSeconds()
    {
        $d = Carbon::now()->addSeconds(2);
        $this->assertSame('2 seconds from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyFutureMinute()
    {
        $d = Carbon::now()->addSeconds(59);
        $this->assertSame('59 seconds from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureMinute()
    {
        $d = Carbon::now()->addMinute();
        $this->assertSame('1 minute from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureMinutes()
    {
        $d = Carbon::now()->addMinutes(2);
        $this->assertSame('2 minutes from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyFutureHour()
    {
        $d = Carbon::now()->addMinutes(59);
        $this->assertSame('59 minutes from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureHour()
    {
        $d = Carbon::now()->addHour();
        $this->assertSame('1 hour from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureHours()
    {
        $d = Carbon::now()->addHours(2);
        $this->assertSame('2 hours from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyFutureDay()
    {
        $d = Carbon::now()->addHours(23);
        $this->assertSame('23 hours from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureDay()
    {
        $d = Carbon::now()->addDay();
        $this->assertSame('1 day from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureDays()
    {
        $d = Carbon::now()->addDays(2);
        $this->assertSame('2 days from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyFutureWeek()
    {
        $d = Carbon::now()->addDays(6);
        $this->assertSame('6 days from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureWeek()
    {
        $d = Carbon::now()->addWeek();
        $this->assertSame('1 week from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureWeeks()
    {
        $d = Carbon::now()->addWeeks(2);
        $this->assertSame('2 weeks from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyFutureMonth()
    {
        $d = Carbon::now()->addWeeks(3);
        $this->assertSame('3 weeks from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureMonth()
    {
        $d = Carbon::now()->addWeeks(4);
        $this->assertSame('1 month from now', $d->diffForHumans());
        $d = Carbon::now()->addMonth();
        $this->assertSame('1 month from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureMonths()
    {
        $d = Carbon::now()->addMonths(2);
        $this->assertSame('2 months from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndNearlyFutureYear()
    {
        $d = Carbon::now()->addMonths(11);
        $this->assertSame('11 months from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureYear()
    {
        $d = Carbon::now()->addYear();
        $this->assertSame('1 year from now', $d->diffForHumans());
    }
    public function testDiffForHumansNowAndFutureYears()
    {
        $d = Carbon::now()->addYears(2);
        $this->assertSame('2 years from now', $d->diffForHumans());
    }

    public function testDiffForHumansOtherAndSecond()
    {
        $d = Carbon::now()->addSecond();
        $this->assertSame('1 second before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndSeconds()
    {
        $d = Carbon::now()->addSeconds(2);
        $this->assertSame('2 seconds before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyMinute()
    {
        $d = Carbon::now()->addSeconds(59);
        $this->assertSame('59 seconds before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndMinute()
    {
        $d = Carbon::now()->addMinute();
        $this->assertSame('1 minute before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndMinutes()
    {
        $d = Carbon::now()->addMinutes(2);
        $this->assertSame('2 minutes before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyHour()
    {
        $d = Carbon::now()->addMinutes(59);
        $this->assertSame('59 minutes before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndHour()
    {
        $d = Carbon::now()->addHour();
        $this->assertSame('1 hour before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndHours()
    {
        $d = Carbon::now()->addHours(2);
        $this->assertSame('2 hours before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyDay()
    {
        $d = Carbon::now()->addHours(23);
        $this->assertSame('23 hours before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndDay()
    {
        $d = Carbon::now()->addDay();
        $this->assertSame('1 day before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndDays()
    {
        $d = Carbon::now()->addDays(2);
        $this->assertSame('2 days before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyWeek()
    {
        $d = Carbon::now()->addDays(6);
        $this->assertSame('6 days before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndWeek()
    {
        $d = Carbon::now()->addWeek();
        $this->assertSame('1 week before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndWeeks()
    {
        $d = Carbon::now()->addWeeks(2);
        $this->assertSame('2 weeks before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyMonth()
    {
        $d = Carbon::now()->addWeeks(3);
        $this->assertSame('3 weeks before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndMonth()
    {
        $d = Carbon::now()->addWeeks(4);
        $this->assertSame('1 month before', Carbon::now()->diffForHumans($d));
        $d = Carbon::now()->addMonth();
        $this->assertSame('1 month before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndMonths()
    {
        $d = Carbon::now()->addMonths(2);
        $this->assertSame('2 months before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyYear()
    {
        $d = Carbon::now()->addMonths(11);
        $this->assertSame('11 months before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndYear()
    {
        $d = Carbon::now()->addYear();
        $this->assertSame('1 year before', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndYears()
    {
        $d = Carbon::now()->addYears(2);
        $this->assertSame('2 years before', Carbon::now()->diffForHumans($d));
    }

    public function testDiffForHumansOtherAndFutureSecond()
    {
        $d = Carbon::now()->subSecond();
        $this->assertSame('1 second after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureSeconds()
    {
        $d = Carbon::now()->subSeconds(2);
        $this->assertSame('2 seconds after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyFutureMinute()
    {
        $d = Carbon::now()->subSeconds(59);
        $this->assertSame('59 seconds after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureMinute()
    {
        $d = Carbon::now()->subMinute();
        $this->assertSame('1 minute after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureMinutes()
    {
        $d = Carbon::now()->subMinutes(2);
        $this->assertSame('2 minutes after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyFutureHour()
    {
        $d = Carbon::now()->subMinutes(59);
        $this->assertSame('59 minutes after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureHour()
    {
        $d = Carbon::now()->subHour();
        $this->assertSame('1 hour after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureHours()
    {
        $d = Carbon::now()->subHours(2);
        $this->assertSame('2 hours after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyFutureDay()
    {
        $d = Carbon::now()->subHours(23);
        $this->assertSame('23 hours after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureDay()
    {
        $d = Carbon::now()->subDay();
        $this->assertSame('1 day after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureDays()
    {
        $d = Carbon::now()->subDays(2);
        $this->assertSame('2 days after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyFutureWeek()
    {
        $d = Carbon::now()->subDays(6);
        $this->assertSame('6 days after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureWeek()
    {
        $d = Carbon::now()->subWeek();
        $this->assertSame('1 week after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureWeeks()
    {
        $d = Carbon::now()->subWeeks(2);
        $this->assertSame('2 weeks after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyFutureMonth()
    {
        $d = Carbon::now()->subWeeks(3);
        $this->assertSame('3 weeks after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureMonth()
    {
        $d = Carbon::now()->subWeeks(4);
        $this->assertSame('1 month after', Carbon::now()->diffForHumans($d));
        $d = Carbon::now()->subMonth();
        $this->assertSame('1 month after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureMonths()
    {
        $d = Carbon::now()->subMonths(2);
        $this->assertSame('2 months after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndNearlyFutureYear()
    {
        $d = Carbon::now()->subMonths(11);
        $this->assertSame('11 months after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureYear()
    {
        $d = Carbon::now()->subYear();
        $this->assertSame('1 year after', Carbon::now()->diffForHumans($d));
    }
    public function testDiffForHumansOtherAndFutureYears()
    {
        $d = Carbon::now()->subYears(2);
        $this->assertSame('2 years after', Carbon::now()->diffForHumans($d));
    }
}