Add Mail.ru service support

src/Services/MailRu.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace bkrukowski\TransparentEmail\Services;
+
+use bkrukowski\TransparentEmail\Emails\EditableEmail;
+use bkrukowski\TransparentEmail\Emails\EmailInterface;
+
+class MailRu implements ServiceInterface
+{
+    public function getPrimaryEmail(EmailInterface $email) : EmailInterface
+    {
+        return (new EditableEmail($email))
+            ->removeSuffixAlias('+')
+            ->lowerCaseLocalPartIf(true);
+    }
+
+    public function isSupported(EmailInterface $email) : bool
+    {
+        return in_array($email->getDomain(), ['mail.ru']);
+    }
+}

src/TransparentEmailFactory.php

@@ -6,6 +6,7 @@ namespace bkrukowski\TransparentEmail;
 
 use bkrukowski\TransparentEmail\Services\AppsGoogleCom;
 use bkrukowski\TransparentEmail\Services\GmailCom;
+use bkrukowski\TransparentEmail\Services\MailRu;
 use bkrukowski\TransparentEmail\Services\OutlookCom;
 use bkrukowski\TransparentEmail\Services\TlenPl;
 use bkrukowski\TransparentEmail\Services\Www33MailCom;
@@ -38,6 +39,7 @@ class TransparentEmailFactory
             Www33MailCom::class,
             TlenPl::class,
             AppsGoogleCom::class,
+            MailRu::class
         ];
     }
 }

tests/Services/MailRuTest.php

@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+namespace bkrukowski\TransparentEmail\Tests\Services;
+
+use bkrukowski\TransparentEmail\Emails\Email;
+use bkrukowski\TransparentEmail\Services\MailRu;
+use PHPUnit\Framework\TestCase;
+
+class MailRuTest extends TestCase
+{
+    /**
+     * @dataProvider providerGetPrimaryEmail
+     *
+     * @param string $inputEmail
+     * @param string $outputEmail
+     */
+    public function testGetPrimaryEmail(string $inputEmail, string $outputEmail)
+    {
+        $this->assertEquals($outputEmail, (new MailRu())->getPrimaryEmail(new Email($inputEmail)));
+    }
+
+    public function providerGetPrimaryEmail() : array
+    {
+        return [
+            ['foobar@MAIL.RU', 'foobar@mail.ru'],
+            ['fOObar@MaiL.Ru', 'foobar@mail.ru'],
+            ['foobar+alias@mail.ru', 'foobar@mail.ru'],
+        ];
+    }
+
+    /**
+     * @dataProvider providerIsSupported
+     *
+     * @param string $domain
+     * @param bool $result
+     */
+    public function testIsSupported(string $domain, bool $result)
+    {
+        $this->assertSame($result, (new MailRu())->isSupported(new Email('Jane.Doe@' . $domain)));
+    }
+
+    public function providerIsSupported() : array
+    {
+        return [
+            ['mail.ru', true],
+            ['mail.RU', true],
+            ['MAIL.RU', true],
+            ['ma.il.ru', false],
+        ];
+    }
+}