Add more tests

tests/PHPMailerConfiguratorTest.php

@@ -8,7 +8,6 @@
 use PHPUnit\Framework\TestCase;
 use PopArtDesign\WordPressMailerDSN\PHPMailerConfigurator;
 
-
 /**
  * @covers PHPMailerConfigurator
  * @runTestsInSeparateProcesses
@@ -47,19 +46,6 @@ public function testConfiguresUsingMailerDsnConstant()
         $this->assertEquals('/usr/sbin/sendmail -oi -t', $mailer->Sendmail);
     }
 
-    public function testGivesPreferenceToEnvsOverConstants()
-    {
-        $configurator = new PHPMailerConfigurator();
-        $mailer = new PHPMailer();
-
-        $_SERVER['MAILER_DSN'] = 'smtps://pop:[email protected]:587?SMTPDebug=3&Timeout=1000';
-        define('MAILER_DSN', 'sendmail://localhost?Sendmail=/usr/sbin/sendmail%20-oi%20-t');
-
-        $configurator->configure($mailer);
-
-        $this->assertEquals('smtp', $mailer->Mailer);
-    }
-
     public function testConfiguresDebugUsingEnvs()
     {
         $configurator = new PHPMailerConfigurator();
@@ -129,4 +115,56 @@ public function testConfiguresDkimDomainAndIdentityWithDefaultValues()
         $this->assertEquals('[email protected]', $mailer->DKIM_identity);
         $this->assertEquals('popartdesign.ru', $mailer->DKIM_domain);
     }
+
+    public function testGivesPreferenceToEnvsOverConstants()
+    {
+        $configurator = new PHPMailerConfigurator();
+        $mailer = new PHPMailer();
+
+        $_SERVER['MAILER_DSN'] = 'smtps://pop:[email protected]:587?SMTPDebug=3&Timeout=1000';
+        define('MAILER_DSN', 'sendmail://localhost?Sendmail=/usr/sbin/sendmail%20-oi%20-t');
+
+        $configurator->configure($mailer);
+
+        $this->assertEquals('smtp', $mailer->Mailer);
+    }
+
+    public function testGivesPreferenceToServerSuperglobalOverEnvAndGetenv()
+    {
+        $configurator = new PHPMailerConfigurator();
+        $mailer = new PHPMailer();
+
+        $_SERVER['MAILER_DEBUG'] = 1;
+        $_ENV['MAILER_DEBUG'] = 2;
+        putenv('MAILER_DEBUG=3');
+
+        $configurator->configure($mailer);
+
+        $this->assertEquals(1, $mailer->SMTPDebug);
+    }
+
+    public function testUsesEnvSuperglobalIfServerIsNotSet()
+    {
+        $configurator = new PHPMailerConfigurator();
+        $mailer = new PHPMailer();
+
+        $_ENV['MAILER_DEBUG'] = 1;
+        putenv('MAILER_DEBUG=2');
+
+        $configurator->configure($mailer);
+
+        $this->assertEquals(1, $mailer->SMTPDebug);
+    }
+
+    public function testUsesGetenvAsFallback()
+    {
+        $configurator = new PHPMailerConfigurator();
+        $mailer = new PHPMailer();
+
+        putenv('MAILER_DEBUG=1');
+
+        $configurator->configure($mailer);
+
+        $this->assertEquals(1, $mailer->SMTPDebug);
+    }
 }