From d1685a13df6a9114c883f35c3908db9f1e11e511 Mon Sep 17 00:00:00 2001
From: Bahtiar `kalkin-` Gadimov <bahtiar@gadimov.de>
Date: Sat, 7 Nov 2015 19:32:03 +0100
Subject: [PATCH] Add storage.pool_exists

---
 core/storage/__init__.py | 9 +++++++++
 tests/storage.py         | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/core/storage/__init__.py b/core/storage/__init__.py
index b9810881..aabb2f65 100644
--- a/core/storage/__init__.py
+++ b/core/storage/__init__.py
@@ -291,6 +291,15 @@ def _get_pool_klass(name, config=None):
     return klass
 
 
+def pool_exists(name):
+    """ Check if the specified pool exists """
+    try:
+        _get_pool_klass(name)
+        return True
+    except StoragePoolException:
+        return False
+
+
 class StoragePoolException(QubesException):
     pass
 
diff --git a/tests/storage.py b/tests/storage.py
index a52b62b4..e3fb4b29 100644
--- a/tests/storage.py
+++ b/tests/storage.py
@@ -52,6 +52,15 @@ class TC_00_Storage(SystemTestsMixin, QubesTestCase):
         result = qubes.storage._get_pool_klass('default')
         self.assertTrue(result is XenPool)
 
+    def test_004_pool_exists_default(self):
+        """ Expect the default pool to exists """
+        self.assertTrue(qubes.storage.pool_exists('default'))
+
+    def test_005_pool_exists_random(self):
+        """ Expect this pool to not a exist """
+        self.assertFalse(
+            qubes.storage.pool_exists('asdh312096r832598213iudhas'))
+
 
 class TC_01_Storage(SystemTestsMixin, QubesTestCase):