diff --git a/tempest/tests/test_wrappers.py b/tempest/tests/test_wrappers.py
index f6830a1..3f4ac7d 100644
--- a/tempest/tests/test_wrappers.py
+++ b/tempest/tests/test_wrappers.py
@@ -76,7 +76,7 @@
         # version or an sdist to work. so make the test directory a git repo
         # too.
         subprocess.call(['git', 'init'], stderr=DEVNULL)
-        self.assertRunExit('pretty_tox.sh tests.passing', 0)
+        self.assertRunExit('pretty_tox.sh passing', 0)
 
     def test_pretty_tox_fails(self):
         # Git init is required for the pbr testr command. pbr requires a git
@@ -86,7 +86,7 @@
         self.assertRunExit('pretty_tox.sh', 1)
 
     def test_pretty_tox_serial(self):
-        self.assertRunExit('pretty_tox_serial.sh tests.passing', 0)
+        self.assertRunExit('pretty_tox_serial.sh passing', 0)
 
     def test_pretty_tox_serial_fails(self):
         self.assertRunExit('pretty_tox_serial.sh', 1)
diff --git a/tools/subunit-trace.py b/tools/subunit-trace.py
index 8ad59bb..6ed0b00 100755
--- a/tools/subunit-trace.py
+++ b/tools/subunit-trace.py
@@ -285,6 +285,9 @@
         stream.run(result)
     finally:
         result.stopTestRun()
+    if count_tests('status', '.*') == 0:
+        print("The test run didn't actually run any tests")
+        return 1
     if args.post_fails:
         print_fails(sys.stdout)
     print_summary(sys.stdout)