added testsuite for PMA_pow()

test/AllTests.php

@@ -20,6 +20,7 @@ require_once 'PHPUnit/TextUI/TestRunner.php';
 require_once './test/FailTest.php';
 require_once './test/PMA_get_real_size_test.php';
 require_once './test/PMA_sanitize_test.php';
+require_once './test/PMA_pow_test.php';
 
 class AllTests
 {
@@ -35,7 +36,7 @@ class AllTests
         //$suite->addTestSuite('FailTest');
         $suite->addTestSuite('PMA_get_real_size_test');
         $suite->addTestSuite('PMA_sanitize_test');
-
+        $suite->addTestSuite('PMA_pow_test');
         return $suite;
     }
 }

test/PMA_pow_test.php

@@ -0,0 +1,49 @@
+<?php
+/**
+ * tests for PMA_pow()
+ *
+ * @version $Id: $
+ * @package phpMyAdmin-test
+ */
+
+/**
+ *
+ */
+require_once 'PHPUnit/Framework.php';
+require_once './libraries/common.lib.php';
+
+class PMA_pow_test extends PHPUnit_Framework_TestCase
+{
+    public function testIntOverflow()
+    {
+        $this->assertEquals('1267650600228229401496703205376',
+            PMA_pow(2, 100));
+    }
+
+    public function testBcpow()
+    {
+        if (function_exists('bcpow')) {
+            $this->assertEquals('1267650600228229401496703205376',
+                PMA_pow(2, 100, 'bcpow'));
+        } else {
+            $this->markTestSkipped('function bcpow() does not exist');
+        }
+    }
+
+    public function testGmppow()
+    {
+        if (function_exists('gmp_pow')) {
+            $this->assertEquals('1267650600228229401496703205376',
+                PMA_pow(2, 100, 'gmp_pow'));
+        } else {
+            $this->markTestSkipped('function gmp_pow() does not exist');
+        }
+    }
+
+    public function testNegativeExp()
+    {
+        $this->assertEquals(false,
+            PMA_pow(2, -1));
+    }
+}
+?>