oeqa/selftest/wic: improve assert messages in test_fixed_size

(From OE-Core rev: ff4e6c71ac415de93b3abaa4e7f1727d72cd2971)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/meta/lib/oeqa/selftest/cases/wic.py b/meta/lib/oeqa/selftest/cases/wic.py
index fcdd55059d..ea75300406 100644
--- a/meta/lib/oeqa/selftest/cases/wic.py
+++ b/meta/lib/oeqa/selftest/cases/wic.py
@@ -632,8 +632,10 @@ class Wic2(WicTestCase):
         # 1:0.00MiB:200MiB:200MiB:ext4::;\n
         partlns = res.output.splitlines()[2:]
 
-        self.assertEqual(1, len(partlns))
-        self.assertEqual("1:0.00MiB:200MiB:200MiB:ext4::;", partlns[0])
+        self.assertEqual(1, len(partlns),
+                         msg="Partition list '%s'" % res.output)
+        self.assertEqual("1:0.00MiB:200MiB:200MiB:ext4::;", partlns[0],
+                         msg="Partition list '%s'" % res.output)
 
     def test_fixed_size_error(self):
         """