Build/Test Tools: Reduce the bcrypt cost during testing in order to speed up tests.

The lowest allowable cost in PHP is 4, so 5 is used which means tests can still to reduce the cost by one when testing alterations to the cost.

See #63026

git-svn-id: https://develop.svn.wordpress.org/trunk@60298 602fd350-edb4-49c9-b593-d223f7449a82

Author: johnbillion

tests/phpunit/includes/abstract-testcase.php

@@ -136,6 +136,21 @@ public function set_up() {
 		$this->start_transaction();
 		$this->expectDeprecated();
 		add_filter( 'wp_die_handler', array( $this, 'get_wp_die_handler' ) );
+		add_filter( 'wp_hash_password_options', array( $this, 'wp_hash_password_options' ), 1, 2 );
+	}
+
+	/**
+	 * Sets the bcrypt cost option for password hashing during tests.
+	 *
+	 * @param array      $options   The options for password hashing.
+	 * @param string|int $algorithm The algorithm to use for hashing. This is a string in PHP 7.4+ and an integer in PHP 7.3 and earlier.
+	 */
+	public function wp_hash_password_options( array $options, $algorithm ): array {
+		if ( PASSWORD_BCRYPT === $algorithm ) {
+			$options['cost'] = 5;
+		}
+
+		return $options;
 	}
 
 	/**

tests/phpunit/tests/auth.php

@@ -2089,9 +2089,6 @@ private static function set_application_password( string $hash, int $user_id ) {
 	}
 
 	private static function get_default_bcrypt_cost(): int {
-		$hash = password_hash( 'password', PASSWORD_BCRYPT );
-		$info = password_get_info( $hash );
-
-		return $info['options']['cost'];
+		return 5;
 	}
 }