Add ServerManagerTest, fix a lot of bugs

tests/ServerManagerTest.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Stancl\Tenancy\Tests;
+
+use Stancl\Tenancy\ServerManager;
+
+class ServerManagerTest extends TestCase
+{
+    public function setUp()
+    {
+        parent::setUp();
+
+        $this->serverManager = app(ServerManager::class);
+    }
+
+    /** @test */
+    public function getConfigFilePath_works_when_single_file_mode_is_used()
+    {
+        config([
+            'tenancy.server.file.single' => true,
+            'tenancy.server.file.path' => '/foo/bar',
+        ]);
+        
+        $this->assertSame('/foo/bar', $this->serverManager->getConfigFilePath());
+    }
+
+    /** @test */
+    public function getConfigFilePath_works_when_multiple_files_mode_is_used()
+    {
+        config([
+            'tenancy.server.file.single' => false,
+            'tenancy.server.file.path' => [
+                'prefix' => '/etc/foo',
+                'suffix' => 'bar'
+            ],
+        ]);
+
+        $uuid = tenant('uuid');
+
+        $this->assertSame("/etc/foo{$uuid}bar", $this->serverManager->getConfigFilePath());
+    }
+}

tests/TestCase.php

@@ -2,6 +2,8 @@
 
 namespace Stancl\Tenancy\Tests;
 
+use Illuminate\Support\Facades\Redis;
+
 class TestCase extends \Orchestra\Testbench\TestCase
 {
     /**
@@ -13,7 +15,35 @@ class TestCase extends \Orchestra\Testbench\TestCase
     {
         parent::setUp();
 
-        //
+        Redis::connection('tenancy')->flushdb();
+
+        tenant()->create('phpunit.localhost');
+
+        tenancy()->init('phpunit.localhost');
+    }
+
+    /**
+     * Define environment setup.
+     *
+     * @param  \Illuminate\Foundation\Application  $app
+     * @return void
+     */
+    protected function getEnvironmentSetUp($app)
+    {
+        $app['config']->set('database.redis.client', 'phpredis');
+        $app['config']->set('database.redis.tenancy', [
+            'host' => env('TENANCY_TEST_REDIS_HOST', '127.0.0.1'),
+            'password' => env('TENANCY_TEST_REDIS_PASSWORD', null),
+            'port' => env('TENANCY_TEST_REDIS_PORT', 6379),
+            // Use the #14 Redis database unless specified otherwise.
+            // Make sure you don't store anything in this db!
+            'database' => env('TENANCY_TEST_REDIS_DB', 14),
+        ]);
+        $app['config']->set('tenancy.database', [
+            'based_on' => 'sqlite',
+            'prefix' => 'tenant',
+            'suffix' => '.sqlite',
+        ]);
     }
 
     protected function getPackageProviders($app)