set wp-env tests constants for the test environment, to ensure that e…

…mails can be sent without needing a filter override.

.wp-env.json

@@ -1,4 +1,14 @@
 {
   "phpVersion": "7.4",
-  "plugins": [ "." ]
+  "plugins": [ "." ],
+  "env": {
+    "tests": {
+      "config": {
+        "WP_TESTS_EMAIL": "[email protected]",
+        "WP_TESTS_DOMAIN": "example.org",
+        "WP_SITEURL": "https://example.org",
+        "WP_HOME": "https://example.org"
+      }
+    }
+  }
 }

tests/bootstrap.php

@@ -38,17 +38,5 @@ function() {
 	}
 );
 
-// Ensure that emails can be sent.
-tests_add_filter(
-	'wp_mail_from',
-	function( $email ) {
-		if ( false !== strpos( $email, '@localhost' ) ) {
-			$email = str_replace( '@localhost', '@example.org', $email );
-		}
-
-		return $email;
-	}
-);
-
 // Start up the WP testing environment.
 require_once $_tests_dir . '/includes/bootstrap.php';