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1 <?php
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2
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3 namespace Sabre\VObject\Recur\EventIterator;
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4
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5 use
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6 DateTime,
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7 DateTimeZone,
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8 Sabre\VObject\Component\VCalendar,
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9 Sabre\VObject\Recur;
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10
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11 class EventIteratorInfiniteLoopProblemTest extends \PHPUnit_Framework_TestCase {
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12
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13 public function setUp() {
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14
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15 $this->vcal = new VCalendar();
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16
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17 }
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18
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19 /**
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20 * This bug came from a Fruux customer. This would result in a never-ending
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21 * request.
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22 */
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23 function testFastForwardTooFar() {
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24
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25 $ev = $this->vcal->createComponent('VEVENT');
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26 $ev->UID = 'foobar';
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27 $ev->DTSTART = '20090420T180000Z';
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28 $ev->RRULE = 'FREQ=WEEKLY;BYDAY=MO;UNTIL=20090704T205959Z;INTERVAL=1';
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29
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30 $this->assertFalse($ev->isInTimeRange(new DateTime('2012-01-01 12:00:00'),new DateTime('3000-01-01 00:00:00')));
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31
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32 }
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33
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34 /**
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35 * Different bug, also likely an infinite loop.
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36 */
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37 function testYearlyByMonthLoop() {
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38
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39 $ev = $this->vcal->createComponent('VEVENT');
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40 $ev->UID = 'uuid';
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41 $ev->DTSTART = '20120101T154500';
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42 $ev->DTSTART['TZID'] = 'Europe/Berlin';
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43 $ev->RRULE = 'FREQ=YEARLY;INTERVAL=1;UNTIL=20120203T225959Z;BYMONTH=2;BYSETPOS=1;BYDAY=SU,MO,TU,WE,TH,FR,SA';
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44 $ev->DTEND = '20120101T164500';
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45 $ev->DTEND['TZID'] = 'Europe/Berlin';
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46
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47 // This recurrence rule by itself is a yearly rule that should happen
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48 // every february.
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49 //
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50 // The BYDAY part expands this to every day of the month, but the
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51 // BYSETPOS limits this to only the 1st day of the month. Very crazy
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52 // way to specify this, and could have certainly been a lot easier.
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53 $this->vcal->add($ev);
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54
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55 $it = new Recur\EventIterator($this->vcal,'uuid');
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56 $it->fastForward(new DateTime('2012-01-29 23:00:00', new DateTimeZone('UTC')));
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57
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58 $collect = array();
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59
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60 while($it->valid()) {
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61 $collect[] = $it->getDTSTART();
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62 if ($it->getDTSTART() > new DateTime('2013-02-05 22:59:59', new DateTimeZone('UTC'))) {
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63 break;
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64 }
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65 $it->next();
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66
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67 }
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68
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69 $this->assertEquals(
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70 array(new DateTime('2012-02-01 15:45:00', new DateTimeZone('Europe/Berlin'))),
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71 $collect
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72 );
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73
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74 }
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75
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76 /**
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77 * Something, somewhere produced an ics with an interval set to 0. Because
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78 * this means we increase the current day (or week, month) by 0, this also
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79 * results in an infinite loop.
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80 *
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81 * @expectedException InvalidArgumentException
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82 * @return void
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83 */
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84 function testZeroInterval() {
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85
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86 $ev = $this->vcal->createComponent('VEVENT');
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87 $ev->UID = 'uuid';
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88 $ev->DTSTART = '20120824T145700Z';
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89 $ev->RRULE = 'FREQ=YEARLY;INTERVAL=0';
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90 $this->vcal->add($ev);
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91
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92 $it = new Recur\EventIterator($this->vcal,'uuid');
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93 $it->fastForward(new DateTime('2013-01-01 23:00:00', new DateTimeZone('UTC')));
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94
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95 // if we got this far.. it means we are no longer infinitely looping
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96
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97 }
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98
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99 }
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