diff --git a/tests/Config/RepositoryTest.php b/tests/Config/RepositoryTest.php
new file mode 100644
index 000000000000..a1c6485c658e
--- /dev/null
+++ b/tests/Config/RepositoryTest.php
@@ -0,0 +1,88 @@
+<?php
+
+use Illuminate\Config\Repository;
+
+class RepositoryTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @var \Illuminate\Config\Repository
+     */
+    protected $repository;
+
+    /**
+     * @var array
+     */
+    protected $config;
+
+    public function setUp()
+    {
+        $this->repository = new Repository($this->config = [
+            'foo' => 'bar',
+            'bar' => 'baz',
+            'null' => null,
+            'associate' => [
+                'x' => 'xxx',
+                'y' => 'yyy',
+            ],
+            'array' => [
+                'aaa',
+                'zzz',
+            ],
+        ]);
+
+        parent::setUp();
+    }
+
+    public function testConstruct()
+    {
+        $this->assertInstanceOf(Repository::class, $this->repository);
+    }
+
+    public function testHasIsTrue()
+    {
+        $this->assertTrue($this->repository->has('foo'));
+    }
+
+    public function testHasIsTFalse()
+    {
+        $this->assertFalse($this->repository->has('not-exist'));
+    }
+
+    public function testGet()
+    {
+        $this->assertSame('bar', $this->repository->get('foo'));
+    }
+
+    public function testGetWithDefault()
+    {
+        $this->assertSame('default', $this->repository->get('not-exist', 'default'));
+    }
+
+    public function testSet()
+    {
+        $this->repository->set('key', 'value');
+        $this->assertSame('value', $this->repository->get('key'));
+    }
+
+    public function testSetArray()
+    {
+        $this->repository->set([
+            'key1' => 'value1',
+            'key2' => 'value2',
+        ]);
+        $this->assertSame('value1', $this->repository->get('key1'));
+        $this->assertSame('value2', $this->repository->get('key2'));
+    }
+
+    public function testPrepend()
+    {
+        $this->repository->prepend('array', 'xxx');
+        $this->assertSame('xxx', $this->repository->get('array.0'));
+    }
+
+    public function testPush()
+    {
+        $this->repository->push('array', 'xxx');
+        $this->assertSame('xxx', $this->repository->get('array.2'));
+    }
+}