WordPress Date Query Unit Tests

gistfile1.php

<?php

class Tests_WP_Query_Date_Base extends WP_UnitTestCase {

	public $q;

	public function setUp() {
		parent::setUp();

		// Be careful modifying this. Tests are coded to expect this exact sample data.
		$post_dates = array(
			'1972-05-24 14:53:45',
			'1984-07-28 19:28:56',
			'2003-05-27 22:45:07',
			'2004-01-03 08:54:10',
			'2004-05-22 12:34:12',
			'2005-02-17 00:00:15',
			'2005-12-31 23:59:20',
			'2007-01-22 03:49:21',
			'2007-05-16 17:32:22',
			'2007-09-24 07:17:23',
			'2008-03-29 09:04:25',
			'2008-07-15 11:32:26',
			'2008-12-10 13:06:27',
			'2009-06-11 21:30:28',
			'2009-12-18 10:42:29',
			'2010-06-17 17:09:30',
			'2011-02-23 12:12:31',
			'2011-07-04 01:56:32',
			'2011-12-12 16:39:33',
			'2012-06-13 14:03:34',
			'2015-04-20 10:13:00',
		);

		foreach ( $post_dates as $post_date ) {
			$post_id = $this->factory->post->create( array(
				'post_date' => $post_date,
			) );

			if ( is_wp_error( $post_id ) ) {
				$this->assertTrue( false ); // Better way to mark a test failed?
				exit( 'Failed to insert post in ' . __CLASS__ . '. Aborting to avoid bad things!' );
			}
		}

		unset( $this->q );
		$this->q = new WP_Query();

		/*
		// Debug to make sure posts are being created correctly
		$query = $this->_get_query_result();
		file_put_contents( ABSPATH . '/date-query-export.txt', var_export( $query->posts, true ) );
		/**/
	}

	public function _get_query_result( $args = array() ) {
		$args = wp_parse_args( $args, array(
			'posts_per_page' => '-1',
			'orderby'        => 'ID',
			'order'          => 'ASC',
		) );

		return $this->q->query( $args );
	}
}

/**
 * @group datequery
 * @group datequerylegacy
 */
class Tests_WP_Query_Date_Legacy extends Tests_WP_Query_Date_Base {
	public function test_year_expecting_results() {
		$posts = $this->_get_query_result( array(
			'year' => 2008,
		) );

		$expected_dates = array(
			'2008-03-29 09:04:25',
			'2008-07-15 11:32:26',
			'2008-12-10 13:06:27',
		);

		$this->assertEquals( $expected_dates, wp_list_pluck( $posts, 'post_date' ) );
	}

	public function test_year_expecting_noresults() {
		$posts = $this->_get_query_result( array(
			'year' => 2000,
		) );

		$this->assertCount( 0, $posts );
	}

	public function test_monthnum_expecting_results() {
		$posts = $this->_get_query_result( array(
			'monthnum' => 5,
		) );

		$expected_dates = array(
			'1972-05-24 14:53:45',
			'2003-05-27 22:45:07',
			'2004-05-22 12:34:12',
			'2007-05-16 17:32:22',
		);

		$this->assertEquals( $expected_dates, wp_list_pluck( $posts, 'post_date' ) );
	}

	public function test_monthnum_expecting_noresults() {
		$posts = $this->_get_query_result( array(
			'monthnum' => 8,
		) );

		$this->assertCount( 0, $posts );
	}

	public function test_w_as_in_week_expecting_results() {
		$posts = $this->_get_query_result( array(
			'w' => 24,
		) );

		$expected_dates = array(
			'2009-06-11 21:30:28',
			'2010-06-17 17:09:30',
			'2012-06-13 14:03:34',
		);

		$this->assertEquals( $expected_dates, wp_list_pluck( $posts, 'post_date' ) );
	}

	public function test_w_as_in_week_expecting_noresults() {
		$posts = $this->_get_query_result( array(
			'w' => 2,
		) );

		$this->assertCount( 0, $posts );
	}

	public function test_day_expecting_results() {
		$posts = $this->_get_query_result( array(
			'day' => 22,
		) );

		$expected_dates = array(
			'2004-05-22 12:34:12',
			'2007-01-22 03:49:21',
		);

		$this->assertEquals( $expected_dates, wp_list_pluck( $posts, 'post_date' ) );
	}

	public function test_day_expecting_noresults() {
		$posts = $this->_get_query_result( array(
			'day' => 30,
		) );

		$this->assertCount( 0, $posts );
	}

	public function test_hour_expecting_results() {
		$posts = $this->_get_query_result( array(
			'hour' => 21,
		) );

		$expected_dates = array(
			'2009-06-11 21:30:28',
		);

		$this->assertEquals( $expected_dates, wp_list_pluck( $posts, 'post_date' ) );
	}

	public function test_hour_expecting_noresults() {
		$posts = $this->_get_query_result( array(
			'hour' => 2,
		) );

		$this->assertCount( 0, $posts );
	}

	public function test_minute_expecting_results() {
		$posts = $this->_get_query_result( array(
			'minute' => 32,
		) );

		$expected_dates = array(
			'2007-05-16 17:32:22',
			'2008-07-15 11:32:26',
		);

		$this->assertEquals( $expected_dates, wp_list_pluck( $posts, 'post_date' ) );
	}

	public function test_minute_expecting_noresults() {
		$posts = $this->_get_query_result( array(
			'minute' => 1,
		) );

		$this->assertCount( 0, $posts );
	}

	public function test_second_expecting_results() {
		$posts = $this->_get_query_result( array(
			'second' => 30,
		) );

		$expected_dates = array(
			'2010-06-17 17:09:30',
		);

		$this->assertEquals( $expected_dates, wp_list_pluck( $posts, 'post_date' ) );
	}

	public function test_second_expecting_noresults() {
		$posts = $this->_get_query_result( array(
			'second' => 50,
		) );

		$this->assertCount( 0, $posts );
	}
}


/**
 * @group datequery
 * @group wpdatequery
 */
class Tests_WP_Query_Date_Query extends Tests_WP_Query_Date_Base {
	public function setUp() {
		if ( ! class_exists( 'WP_Date_Query' ) ) {
			$this->markTestSkipped( 'WP_Date_Query is missing, skipping tests.' );
		} else {
			parent::setUp();
		}

		$this->markTestIncomplete( 'This test has not been implemented yet.' );
	}

	public function test_before_2008() {
		$count = $this->_get_query_result( array(
			'date_query' => array(
				array(
					'before' => array(
						'year' => 2008,
					),
				),
			),
		) );

		// Do assertions here
	}
}