Fixes #17 : Fixes when set -f option, no set -f option automatically

Signed-off-by: Abdul Malik Ikhsan <[email protected]>

src/Transport/Sendmail.php

@@ -255,6 +255,9 @@ protected function prepareParameters(Mail\Message $message)
         }
 
         $parameters = (string) $this->parameters;
+        if (preg_match('/^\-f.+$/', $parameters) || strpos($parameters, ' -f') !== false) {
+            return $parameters;
+        }
 
         $sender = $message->getSender();
         if ($sender instanceof AddressInterface) {

test/Transport/SendmailTest.php

@@ -282,4 +282,30 @@ public function testHeadersToAndSubjectAreNotDuplicated()
         $this->assertNotRegExp('/^To: matthew\@example\.org$/m', $this->additional_headers);
         $this->assertNotRegExp('/^Subject: Greetings and Salutations!$/m', $this->additional_headers);
     }
+
+    public function testNotSetOptionAutomaticallyOnLeadingF()
+    {
+        if ($this->operating_system == 'WIN') {
+            $this->markTestSkipped('This test is *nix-specific');
+        }
+
+        $message = $this->getMessage();
+        $this->transport->setParameters('-f\'[email protected]\'');
+
+        $this->transport->send($message);
+        $this->assertEquals('-f\'[email protected]\'', $this->additional_parameters);
+    }
+
+    public function testNotSetOptionAutomaticallyOnMiddleF()
+    {
+        if ($this->operating_system == 'WIN') {
+            $this->markTestSkipped('This test is *nix-specific');
+        }
+
+        $message = $this->getMessage();
+        $this->transport->setParameters('-bs -f\'[email protected]\'');
+
+        $this->transport->send($message);
+        $this->assertEquals('-bs -f\'[email protected]\'', $this->additional_parameters);
+    }
 }