1<?php 2 3/** 4 * Helper for the DateTime diff/days/math tests 5 * 6 * @author Daniel Convissor <danielc@analysisandsolutions.com> 7 */ 8 9/**#@+ 10 * Which test segments should be displayed? 11 */ 12define('PHPT_DATETIME_SHOW_DIFF', 1); 13define('PHPT_DATETIME_SHOW_DAYS', 2); 14define('PHPT_DATETIME_SHOW_ADD', 3); 15define('PHPT_DATETIME_SHOW_SUB', 4); 16/**#@-*/ 17 18/** 19 * Provides a consistent interface for executing date diff/add/sub tests 20 * 21 * @param string|DateTime $end_date the end date in YYYY-MM-DD format 22 * (can include time HH:MM:SS) or a DateTime object 23 * @param string|DateTime $start_date the start date in YYYY-MM-DD format 24 * (can include time HH:MM:SS) or a DateTime object 25 * @param string $expect_spec the expected result of the tests, in the 26 * special interval specification used for this test suite. 27 * This spec includes a "+" or "-" after the "P" in order to 28 * indicate which direction to go. 29 * @param int $expect_days the number of days to compare with the 30 * interval's "days" property 31 * @param bool $absolute should the result always be a positive number? 32 * 33 * @return void 34 */ 35function examine_diff($end_date, $start_date, $expect_spec, $expect_days, $absolute = false) { 36 if (is_string($start_date)) { 37 $start = new DateTime($start_date); 38 } else { 39 $start = $start_date; 40 } 41 $start_date = $start->format('Y-m-d H:i:s T'); 42 43 if (is_string($end_date)) { 44 $end = new DateTime($end_date); 45 } else { 46 $end = $end_date; 47 } 48 $end_date = $end->format('Y-m-d H:i:s T'); 49 50 $expect_interval = new DateInterval('P' . substr($expect_spec, 2)); 51 if (substr($expect_spec, 1, 1) == '-') { 52 $expect_interval->invert = true; 53 } 54 55 if (PHPT_DATETIME_SHOW == PHPT_DATETIME_SHOW_DIFF) { 56 $result_interval = $start->diff($end, $absolute); 57 $result_spec = $result_interval->format('P%R%yY%mM%dDT%hH%iM%sS'); 58 echo "DIFF: $end_date - $start_date = **$result_spec**\n"; 59 // echo "DIFF: $end_date - $start_date = **$expect_spec**\n"; 60 } 61 if (PHPT_DATETIME_SHOW == PHPT_DATETIME_SHOW_DAYS) { 62 $result_interval = $start->diff($end, $absolute); 63 $result_days = $result_interval->format('%a'); 64 echo "DAYS: **$result_days**\n"; 65 // echo "DAYS: **$expect_days**\n"; 66 } 67 if (PHPT_DATETIME_SHOW == PHPT_DATETIME_SHOW_ADD) { 68 $start->add($expect_interval); 69 $result_end_date = $start->format('Y-m-d H:i:s T'); 70 echo "ADD: $start_date + $expect_spec = **$result_end_date**\n"; 71 // echo "ADD: $start_date + $expect_spec = **$end_date**\n"; 72 } 73 if (PHPT_DATETIME_SHOW == PHPT_DATETIME_SHOW_SUB) { 74 $end->sub($expect_interval); 75 $result_start_date = $end->format('Y-m-d H:i:s T'); 76 echo "SUB: $end_date - $expect_spec = **$result_start_date**\n"; 77 // echo "SUB: $end_date - $expect_spec = **$start_date**\n"; 78 } 79} 80
