Replace url_encoded invisible characters case-insensitively.

Signed-off-by: tianhe1986 <w1s2j3229@163.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/codeigniter/core/Common_test.php b/tests/codeigniter/core/Common_test.php
index 81a185eaf..ca19e5de0 100644
--- a/tests/codeigniter/core/Common_test.php
+++ b/tests/codeigniter/core/Common_test.php
@@ -54,4 +54,16 @@ class Common_test extends CI_TestCase {
 		);
 	}
 
+	// ------------------------------------------------------------------------
+
+	public function test_remove_invisible_characters()
+	{
+		$raw_string = 'Here is a string containing invisible'.chr(0x08).' text %0e.';
+		$removed_string = 'Here is a string containing invisible text %0e.';
+		$this->assertEquals($removed_string, remove_invisible_characters($raw_string, FALSE));
+
+		$raw_string = 'Here is a string %0econtaining url_encoded invisible%1F text.';
+		$removed_string = 'Here is a string containing url_encoded invisible text.';
+		$this->assertEquals($removed_string, remove_invisible_characters($raw_string));
+	}
 }
\ No newline at end of file