1 files changed, 46 insertions, 0 deletions
diff --git a/tests/random/mt_rand.php b/tests/random/mt_rand.php
new file mode 100644
index 0000000000..d6502c4e80
--- /dev/null
+++ b/tests/random/mt_rand.php
@@ -0,0 +1,46 @@
+<?php
+/**
+*
+* @package testing
+* @copyright (c) 2011 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions.php';
+
+class phpbb_random_mt_rand_test extends phpbb_test_case
+{
+	public function test_max_equals_min()
+	{
+		$result = phpbb_mt_rand(42, 42);
+		$this->assertEquals(42, $result);
+	}
+
+	public function test_max_equals_min_negative()
+	{
+		$result = phpbb_mt_rand(-42, -42);
+		$this->assertEquals(-42, $result);
+	}
+
+	public function test_max_greater_min()
+	{
+		$result = phpbb_mt_rand(3, 4);
+		$this->assertGreaterThanOrEqual(3, $result);
+		$this->assertLessThanOrEqual(4, $result);
+	}
+
+	public function test_min_greater_max()
+	{
+		$result = phpbb_mt_rand(4, 3);
+		$this->assertGreaterThanOrEqual(3, $result);
+		$this->assertLessThanOrEqual(4, $result);
+	}
+
+	public function test_min_greater_max_negative()
+	{
+		$result = phpbb_mt_rand(-3, -4);
+		$this->assertGreaterThanOrEqual(-4, $result);
+		$this->assertLessThanOrEqual(-3, $result);
+	}
+}