Ability to scream silenced errors

Author: Slamdunk

lib/ErrorHandler.php

@@ -16,6 +16,7 @@ final class ErrorHandler
     private $logErrors;
     private $logVariables = true;
     private $emailCallback;
+    private $scream = array();
 
     private static $colors = array(
         '<error>'   => "\033[37;41m",
@@ -132,6 +133,16 @@ public function logVariables(): bool
         return $this->logVariables;
     }
 
+    public function setScreamSilencesErrors(array $scream): void
+    {
+        $this->scream = $scream;
+    }
+
+    public function getScreamSilencesErrors(): array
+    {
+        return $this->scream;
+    }
+
     public function register(): void
     {
         \set_error_handler(array($this, 'errorHandler'), \error_reporting());
@@ -141,7 +152,7 @@ public function register(): void
     public function errorHandler($errno, $errstr = '', $errfile = '', $errline = 0): void
     {
         // Mandatory check for @ operator
-        if (0 === \error_reporting()) {
+        if (0 === \error_reporting() and ! isset($this->scream[$errno])) {
             return;
         }
 

tests/ErrorHandlerTest.php

@@ -84,6 +84,31 @@ public function testRegisterBuiltinHandlers()
         $arrayPerVerificaErrori['undefined_index'];
     }
 
+    /**
+     * @runInSeparateProcess
+     * @preserveGlobalState disabled
+     */
+    public function testScream()
+    {
+        $scream = array(
+            \E_USER_WARNING => true,
+        );
+
+        $this->assertEmpty($this->errorHandler->getScreamSilencesErrors());
+        $this->errorHandler->setScreamSilencesErrors($scream);
+        $this->assertSame($scream, $this->errorHandler->getScreamSilencesErrors());
+
+        $this->errorHandler->register();
+
+        @ \trigger_error(\uniqid('deprecated_'), \E_USER_DEPRECATED);
+
+        $warningMessage = \uniqid('warning_');
+        $this->expectException(ErrorException::class);
+        $this->expectExceptionMessageRegexp(\sprintf('/%s/', \preg_quote($warningMessage)));
+
+        @ \trigger_error($warningMessage, \E_USER_WARNING);
+    }
+
     public function testHandleCliException()
     {
         $memoryStream = \fopen('php://memory', 'r+');