From 377bbd6076dedaa6e60d0cef1ddb6dea0f2e2cca Mon Sep 17 00:00:00 2001
From: Fabian Schmengler <fs@integer-net.de>
Date: Thu, 19 Mar 2015 08:48:58 +0100
Subject: [PATCH] Add test case for #538

---
 test/Faker/GeneratorTest.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/test/Faker/GeneratorTest.php b/test/Faker/GeneratorTest.php
index 147d9ddd18..9fea4f867a 100644
--- a/test/Faker/GeneratorTest.php
+++ b/test/Faker/GeneratorTest.php
@@ -105,6 +105,21 @@ public function testMagicCallCallsFormatWithArguments()
         $this->assertEquals('bazfoo', $generator->fooFormatterWithArguments('foo'));
     }
 
+    public function testSeed()
+    {
+        $generator = new Generator;
+
+        $generator->seed(0);
+        $mtRandWithSeedZero = mt_rand();
+        $generator->seed(0);
+        $this->assertEquals($mtRandWithSeedZero, mt_rand(), 'seed(0) should be deterministic.');
+
+        $generator->seed();
+        $mtRandWithoutSeed = mt_rand();
+        $this->assertNotEquals($mtRandWithSeedZero, $mtRandWithoutSeed, 'seed() should be different than seed(0)');
+        $generator->seed();
+        $this->assertNotEquals($mtRandWithoutSeed, mt_rand(), 'seed() should not be deterministic.');
+    }
 }
 
 class FooProvider