Enable redis.so in before_install

.travis.yml

@@ -7,6 +7,9 @@ branches:
   only:
     - master
 
+before_install:
+  - echo "extension = redis.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
+
 install:
   - travis_retry composer install --no-interaction
 

tests/TestCase.php

@@ -15,8 +15,6 @@ class TestCase extends \Orchestra\Testbench\TestCase
     {
         parent::setUp();
 
-        $this->assertSame('Redis', \Redis::class);  // (travis test) todo remove this line
-
         Redis::connection('tenancy')->flushdb();
 
         tenant()->create('phpunit.localhost');