Tests: Fix test that checks MySQL version recommendation.

A test in the `external-http` group that detects when the recommended version of MySQL is too old is failing due to an upstream change to the content of version documentation pages.

Because the required information is no longer on the page, this switches to using the public API from endoflife.date. This site is an open source (MIT licensed) resource that is actively maintained.

Props peterwilsoncc.
See #64894.

git-svn-id: https://develop.svn.wordpress.org/trunk@62170 602fd350-edb4-49c9-b593-d223f7449a82

Author: desrosj

tests/phpunit/tests/readme.php

@@ -36,10 +36,15 @@ public function test_readme_mysql_version() {
 
 		preg_match( '#Recommendations.*MySQL</a> version <strong>([0-9.]*)#s', $readme, $matches );
 
-		$response_body = $this->get_response_body( "https://dev.mysql.com/doc/relnotes/mysql/{$matches[1]}/en/" );
+		$response_body = json_decode( $this->get_response_body( 'https://endoflife.date/api/mysql.json' ) );
+		$eol_date      = '';
 
-		// Retrieve the date of the first GA release for the recommended branch.
-		preg_match( '#.*(\d{4}-\d{2}-\d{2}), General Availability#s', $response_body, $mysql_matches );
+		foreach ( $response_body as $version ) {
+			if ( $version->cycle === $matches[1] && false !== $version->eol ) {
+				$eol_date = $version->eol;
+				break;
+			}
+		}
 
 		/*
 		 * Per https://www.mysql.com/support/, Oracle actively supports MySQL releases for 5 years from GA release.
@@ -50,7 +55,7 @@ public function test_readme_mysql_version() {
 		 *
 		 * TODO: Reduce this back to 5 years once MySQL 8.1 compatibility is achieved.
 		 */
-		$mysql_eol    = gmdate( 'Y-m-d', strtotime( $mysql_matches[1] . ' +8 years' ) );
+		$mysql_eol    = gmdate( 'Y-m-d', strtotime( $eol_date . ' +8 years' ) );
 		$current_date = gmdate( 'Y-m-d' );
 
 		$this->assertLessThan( $mysql_eol, $current_date, "readme.html's Recommended MySQL version is too old. Remember to update the WordPress.org Requirements page, too." );