add some tests to check error functionality

git-svn-id: http://svn.php.net/repository/pear/packages/Text_LanguageDetect/trunk@322330 c90b9560-bf6c-de11-be94-00142212c4b1

Author: cweiske

Text/LanguageDetect.php

@@ -244,7 +244,7 @@ function _readdb($fname)
             );
         } elseif (!is_readable($fname)) {
             throw new Text_LanguageDetect_Exception(
-                'Language database is not readable:' . $fname,
+                'Language database is not readable: ' . $fname,
                 Text_LanguageDetect_Exception::DB_NOT_READABLE
             );
         }

tests/Text_LanguageDetectTest.php

@@ -16,6 +16,7 @@ class Text_LanguageDetectTest extends PHPUnit_Framework_TestCase {
 
     function setup ()
     {
+        ini_set('magic_quotes_runtime', 0);
         $this->x = new Text_LanguageDetect();
     }
 
@@ -24,6 +25,71 @@ function tearDown ()
         unset($this->x);
     }
 
+    function test_get_data_locAbsolute()
+    {
+        $this->assertEquals(
+            '/path/to/file',
+            $this->x->_get_data_loc('/path/to/file')
+        );
+    }
+
+    function test_get_data_locPearPath()
+    {
+        $this->x->_data_dir = '/path/to/pear/data';
+        $this->assertEquals(
+            '/path/to/pear/data/Text_LanguageDetect/file',
+            $this->x->_get_data_loc('file')
+        );
+    }
+
+    /**
+     * @expectedException Text_LanguageDetect_Exception
+     * @expectedExceptionMessage Language database does not exist:
+     */
+    function test_readdbNonexistingFile()
+    {
+        $this->x->_readdb('thisfiledoesnotexist');
+    }
+
+    /**
+     * @expectedException Text_LanguageDetect_Exception
+     * @expectedExceptionMessage Language database is not readable:
+     */
+    function test_readdbUnreadableFile()
+    {
+        $name = tempnam(sys_get_temp_dir(), 'unittest-Text_LanguageDetect-');
+        chmod($name, 0000);
+        $this->x->_readdb($name);
+    }
+
+    /**
+     * @expectedException Text_LanguageDetect_Exception
+     * @expectedExceptionMessage Language database has no elements.
+     */
+    function test_checkTrigramEmpty()
+    {
+        $this->x->_checkTrigram(array());
+    }
+
+    /**
+     * @expectedException Text_LanguageDetect_Exception
+     * @expectedExceptionMessage Language database is not an array
+     */
+    function test_checkTrigramNoArray()
+    {
+        $this->x->_checkTrigram('foo');
+    }
+
+    /**
+     * @expectedException Text_LanguageDetect_Exception
+     * @expectedExceptionMessage Error loading database. Try turning magic_quotes_runtime off
+     */
+    function test_checkTrigramNoArrayMagicQuotes()
+    {
+        ini_set('magic_quotes_runtime', 1);
+        $this->x->_checkTrigram('foo');
+    }
+
     function test_splitter ()
     {
         $str = 'hello';