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-rw-r--r--tests/codeigniter/libraries/Encryption_test.php16
1 files changed, 14 insertions, 2 deletions
diff --git a/tests/codeigniter/libraries/Encryption_test.php b/tests/codeigniter/libraries/Encryption_test.php
index 96e52ada8..99c5d4b9d 100644
--- a/tests/codeigniter/libraries/Encryption_test.php
+++ b/tests/codeigniter/libraries/Encryption_test.php
@@ -94,10 +94,22 @@ class Encryption_test extends CI_TestCase {
}
// Test default length, it must match the digest size
- $this->assertEquals(64, strlen($this->encryption->hkdf('foobar', 'sha512')));
+ $hkdf_result = $this->encryption->hkdf('foobar', 'sha512');
+ $this->assertEquals(
+ 64,
+ defined('MB_OVERLOAD_STRING')
+ ? mb_strlen($hkdf_result, '8bit')
+ : strlen($hkdf_result)
+ );
// Test maximum length (RFC5869 says that it must be up to 255 times the digest size)
- $this->assertEquals(12240, strlen($this->encryption->hkdf('foobar', 'sha384', NULL, 48 * 255)));
+ $hkdf_result = $this->encryption->hkdf('foobar', 'sha384', NULL, 48 * 255);
+ $this->assertEquals(
+ 12240,
+ defined('MB_OVERLOAD_STRING')
+ ? mb_strlen($hkdf_result, '8bit')
+ : strlen($hkdf_result)
+ );
$this->assertFalse($this->encryption->hkdf('foobar', 'sha224', NULL, 28 * 255 + 1));
// CI-specific test for an invalid digest