From d6c4429bbb09fae249d7b97b06a9346cdc99f962 Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Wed, 19 Dec 2018 09:36:30 +0100
Subject: [PATCH] Use cryptsetup to check LUKS2 label

libblkid on CentOS 7.6 doesn't support reading LUKS2 labels
---
 tests/crypto_test.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tests/crypto_test.py b/tests/crypto_test.py
index 7320e74..b8aacee 100644
--- a/tests/crypto_test.py
+++ b/tests/crypto_test.py
@@ -148,8 +148,11 @@ class CryptoTestFormat(CryptoTestCase):
                                            BlockDev.CryptoLUKSVersion.LUKS2, extra)
         self.assertTrue(succ)
 
-        _ret, label, _err = run_command("lsblk -oLABEL -n %s" % self.loop_dev)
-        self.assertEqual(label, "blockdevLUKS")
+        _ret, out, err = run_command("cryptsetup luksDump %s" % self.loop_dev)
+        m = re.search(r"Label:\s*(\S+)\s*", out)
+        if not m or len(m.groups()) != 1:
+            self.fail("Failed to get label information from:\n%s %s" % (out, err))
+        self.assertEqual(m.group(1), "blockdevLUKS")
 
         # different key derivation function
         pbkdf = BlockDev.CryptoLUKSPBKDF(type="pbkdf2")
-- 
2.21.0