diff --git a/src/unit/engine/NoseTestEngine.php b/src/unit/engine/NoseTestEngine.php
index e81bcb6..bea8c49 100644
--- a/src/unit/engine/NoseTestEngine.php
+++ b/src/unit/engine/NoseTestEngine.php
@@ -9,7 +9,16 @@ final class NoseTestEngine extends ArcanistUnitTestEngine {
private $parser;
+ public function supportsRunAllTests() {
+ return true;
+ }
+
public function run() {
+ if ($this->getRunAllTests()) {
+ $affected_tests = array(Filesystem::resolvePath("./"));
+ return $this->runTests($affected_tests, './');
+ }
+
$paths = $this->getPaths();
$affected_tests = array();