4 files changed, 5 insertions, 2 deletions
diff --git a/qtip/runner/benchmark.py b/qtip/runner/benchmark.py
index 56b5b30e..58e5a8d9 100644
--- a/qtip/runner/benchmark.py
+++ b/qtip/runner/benchmark.py
@@ -18,7 +18,7 @@ class Property:
     ABSPATH = 'abspath'
 
 
-class Benchmark:
+class Benchmark(object):
     """Abstract class of QTIP benchmarks"""
 
     _paths = [path.join(path.dirname(__file__), path.pardir, path.pardir,
@@ -40,7 +40,7 @@ class Benchmark:
     def list_all(cls):
         """list all available benchmarks"""
         names = chain.from_iterable([listdir(p) for p in cls._paths])
-        return [Benchmark(name).describe() for name in names]
+        return [cls(name).describe() for name in names]
 
     def describe(self):
         """description of benchmark"""
diff --git a/tests/unit/runner/perftest_test.py b/tests/unit/runner/perftest_test.py
index b3e6e8e2..1f0b5631 100644
--- a/tests/unit/runner/perftest_test.py
+++ b/tests/unit/runner/perftest_test.py
@@ -39,3 +39,4 @@ class TestPerfTest:
             assert Property.NAME in desc
             assert Property.DESCRIPTION in desc
             assert Property.ABSPATH in desc
+            assert Property.ABSPATH is not None
diff --git a/tests/unit/runner/suite_test.py b/tests/unit/runner/suite_test.py
index 5d2f1066..10205801 100644
--- a/tests/unit/runner/suite_test.py
+++ b/tests/unit/runner/suite_test.py
@@ -39,3 +39,4 @@ class TestSuite:
             assert Property.NAME in suite_desc
             assert Property.DESCRIPTION in suite_desc
             assert Property.ABSPATH in suite_desc
+            assert Property.ABSPATH is not None
diff --git a/tests/unit/runner/testplan_test.py b/tests/unit/runner/testplan_test.py
index 2700d385..de8bf1e1 100644
--- a/tests/unit/runner/testplan_test.py
+++ b/tests/unit/runner/testplan_test.py
@@ -39,3 +39,4 @@ class TestTestPlan:
             assert Property.NAME in desc
             assert Property.DESCRIPTION in desc
             assert Property.ABSPATH in desc
+            assert Property.ABSPATH is not None