selftest/prservice: Improve test failure message

When failing, give more information about why exactly a failure is
happening such as the PR values in question.

(From OE-Core rev: bdd3abcc210e8f58b7b411da6bbd9c5314819908)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/meta/lib/oeqa/selftest/cases/prservice.py b/meta/lib/oeqa/selftest/cases/prservice.py
index fe1f24ea6d..85b534963d 100644
--- a/meta/lib/oeqa/selftest/cases/prservice.py
+++ b/meta/lib/oeqa/selftest/cases/prservice.py
@@ -63,7 +63,7 @@ class BitbakePrTests(OESelftestTestCase):
         pr_2 = self.get_pr_version(package_name)
         stamp_2 = self.get_task_stamp(package_name, track_task)
 
-        self.assertTrue(pr_2 - pr_1 == 1, "Step between same pkg. revision is greater than 1")
+        self.assertTrue(pr_2 - pr_1 == 1, "Step between pkg revisions is not 1 (was %s - %s)" % (pr_2, pr_1))
         self.assertTrue(stamp_1 != stamp_2, "Different pkg rev. but same stamp: %s" % stamp_1)
 
     def run_test_pr_export_import(self, package_name, replace_current_db=True):
@@ -89,7 +89,7 @@ class BitbakePrTests(OESelftestTestCase):
         self.increment_package_pr(package_name)
         pr_2 = self.get_pr_version(package_name)
 
-        self.assertTrue(pr_2 - pr_1 == 1, "Step between same pkg. revision is greater than 1")
+        self.assertTrue(pr_2 - pr_1 == 1, "Step between pkg revisions is not 1 (was %s - %s)" % (pr_2, pr_1))
 
     def test_import_export_replace_db(self):
         self.run_test_pr_export_import('m4')