Fix Argon2 options checks

The minimum for memory cost is 8 KiB per thread. Threads must be checked and set first to allow checking against the correct memory cost mimimum.
Options are now applied the following way:
- If config.php contains the setting with an integer higher or equal to the minimum, it is applied.
- If config.php contains the setting with an integer lower than the minimum, the minimum is applied.
- If config.php does not contain the setting or with no integer value, the PHP default is applied.

Signed-off-by: MichaIng <micha@dietpi.com>
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

1 files changed, 5 insertions, 0 deletions

diff --git a/tests/lib/Security/HasherTest.php b/tests/lib/Security/HasherTest.php
index cc5cb786088..e1faef2f69b 100644
--- a/tests/lib/Security/HasherTest.php
+++ b/tests/lib/Security/HasherTest.php
@@ -113,6 +113,11 @@ class HasherTest extends \Test\TestCase {
 
 		$this->config = $this->createMock(IConfig::class);
 
+		$this->config->method('getSystemValueInt')
+			->willReturnCallback(function ($name, $default) {
+				return $default;
+			});
+
 		$this->hasher = new Hasher($this->config);
 	}