Test pre_get_posts.

tests/phpunit/tests/query/thePost.php

@@ -408,4 +408,104 @@ public function test_post_preview_links_autosaves() {
 }
 $this->assertSame( 'ticket 56992', get_the_content(), 'Permalink should show published content to logged out users' );
 }
+
+/**
+* Test that WP_Query::get() returns the value as passed on the `pre_get_posts` hook.
+*
+* @ticket 63255
+* @dataProvider data_pre_get_posts_includes_unmodified_query_vars
+*
+* @param string $query_var The query variable.
+* @param mixed $query_var_value The value to set for the query variable.
+*/
+public function test_pre_get_posts_includes_unmodified_query_vars( $query_var, $query_var_value ) {
+$action_did_run = false;
+
+/*
+* MockAction can not be used here because `$query` is an object and therefore
+* is passed by reference so will be modified by the time `MockAction::get_args()`
+* is called.
+*/
+add_action(
+'pre_get_posts',
+function ( $query ) use ( $query_var, $query_var_value, &$action_did_run ) {
+$action_did_run = true;
+$this->assertSame( $query_var_value, $query->get( $query_var ), 'The pre_get_posts filter should return an unmodified query var.' );
+}
+);
+
+new WP_Query(
+array(
+$query_var => $query_var_value,
+)
+);
+
+// Ensure the action was called.
+$this->assertTrue( $action_did_run, 'The pre_get_posts is expected to be called' );
+}
+
+/**
+* Data provider for test_pre_get_posts_includes_unmodified_query_vars.
+*
+* @return array[] Data provider.
+*/
+public function data_pre_get_posts_includes_unmodified_query_vars() {
+return array(
+'post type, string' => array( 'post_type', 'post' ),
+'post type, DESC array' => array( 'post_type', array( 'post', 'page' ) ),
+'post type, ASC array' => array( 'post_type', array( 'page', 'post' ) ),
+'post type, duplicate array' => array( 'post_type', array( 'post', 'post' ) ),
+'post status, string' => array( 'post_status', 'publish' ),
+'post status, DESC array' => array( 'post_status', array( 'publish', 'draft' ) ),
+'post status, ASC array' => array( 'post_status', array( 'draft', 'publish' ) ),
+'post status, duplicate array' => array( 'post_status', array( 'draft', 'draft' ) ),
+
+'post_name__in, string' => array( 'post_name__in', 'elphaba' ),
+'post_name__in, DESC array' => array( 'post_name__in', array( 'the-wizard-of-oz', 'glinda', 'doctor-dillamond', 'elphaba' ) ),
+'post_name__in, ASC array' => array( 'post_name__in', array( 'elphaba', 'doctor-dillamond', 'glinda', 'the-wizard-of-oz' ) ),
+'post_name__in, array dupes' => array( 'post_name__in', array( 'elphaba', 'doctor-dillamond', 'elphaba', 'doctor-dillamond' ) ),
+
+'category__in, int[] ASC' => array( 'category__in', array( 1, 2 ) ),
+'category__in, int[] DESC' => array( 'category__in', array( 2, 1 ) ),
+
+'post id, int' => array( 'p', 1 ),
+'page_id, int' => array( 'page_id', 1 ),
+'attachment_id, int' => array( 'page_id', 1 ),
+'offset, string' => array( 'offset', '5' ),
+'offset, int' => array( 'offset', 5 ),
+
+'post__in, string[] ASC' => array( 'post__in', array( '1', '2' ) ),
+'post__in, string[] DESC' => array( 'post__in', array( '2', '1' ) ),
+'post__in, int[] ASC' => array( 'post__in', array( 1, 2 ) ),
+'post__in, int[] DESC' => array( 'post__in', array( 2, 1 ) ),
+'post__in, int[] duplicate' => array( 'post__in', array( 1, 1 ) ),
+
+'post__not_in, string[] ASC' => array( 'post__not_in', array( '1', '2' ) ),
+'post__not_in, string[] DESC' => array( 'post__not_in', array( '2', '1' ) ),
+'post__not_in, int[] ASC' => array( 'post__not_in', array( 1, 2 ) ),
+'post__not_in, int[] DESC' => array( 'post__not_in', array( 2, 1 ) ),
+'post__not_in, int[] duplicate' => array( 'post__not_in', array( 1, 1 ) ),
+
+'author__in, string[] ASC' => array( 'author__in', array( '1', '2' ) ),
+'author__in, string[] DESC' => array( 'author__in', array( '2', '1' ) ),
+'author__in, int[] ASC' => array( 'author__in', array( 1, 2 ) ),
+'author__in, int[] DESC' => array( 'author__in', array( 2, 1 ) ),
+'author__in, int[] duplicate' => array( 'author__in', array( 1, 1 ) ),
+
+'author__not_in, string[] ASC' => array( 'author__not_in', array( '1', '2' ) ),
+'author__not_in, string[] DESC' => array( 'author__not_in', array( '2', '1' ) ),
+'author__not_in, int[] ASC' => array( 'author__not_in', array( 1, 2 ) ),
+'author__not_in, int[] DESC' => array( 'author__not_in', array( 2, 1 ) ),
+'author__not_in, int[] duplicate' => array( 'author__not_in', array( 1, 1 ) ),
+
+'tag_slug__in, string[] ASC' => array( 'tag_slug__in', array( 'bobby', 'hans', 'herman', 'victor' ) ),
+'tag_slug__in, string[] DESC' => array( 'tag_slug__in', array( 'victor', 'herman', 'hans', 'bobby' ) ),
+
+'tag__in, int[] ASC' => array( 'tag__in', array( 1, 2 ) ),
+'tag__in, int[] DESC' => array( 'tag__in', array( 2, 1 ) ),
+
+'tag__not_in, int[] ASC' => array( 'tag__not_in', array( 1, 2 ) ),
+'tag__not_in, int[] DESC' => array( 'tag__not_in', array( 2, 1 ) ),
+);
+}
 }