Coding Standards: Fix the remaining issues in /tests.

All PHP files in `/tests` now conform to the PHP coding standards, or have exceptions appropriately marked.

Travis now also runs `phpcs` on the `/tests` directory, any future changes to these files must conform entirely to the WordPress PHP coding standards. 🎉

See #47632.



git-svn-id: https://develop.svn.wordpress.org/trunk@45607 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/term/cache.php

@@ -90,7 +90,7 @@ class Tests_Term_Cache extends WP_UnitTestCase {
 				$this->assertEquals( $children, count( $hierarchy, COUNT_RECURSIVE ) - count( $hierarchy ) );
 			}
 
-			if ( $i % 3 === 0 ) {
+			if ( 0 === ( $i % 3 ) ) {
 				$step = 1;
 			} else {
 				$step++;