diff --git a/refstack/api/validators.py b/refstack/api/validators.py
index 555fc046..faa032e7 100644
--- a/refstack/api/validators.py
+++ b/refstack/api/validators.py
@@ -123,6 +123,16 @@ class TestResultValidator(BaseValidator):
             data_hash.update(request.body.encode('utf-8'))
             if not signer.verify(data_hash, sign):
                 raise api_exc.ValidationError('Signature verification failed')
+        if self._is_empty_result(request):
+            raise api_exc.ValidationError('Uploaded results must contain at '
+                                          'least one passing test.')
+
+    def _is_empty_result(self, request):
+        """Check if the test results list is empty."""
+        body = json.loads(request.body)
+        if len(body['results']) != 0:
+            return False
+        return True
 
     @staticmethod
     def assert_id(_id):
diff --git a/refstack/tests/api/test_api.py b/refstack/tests/api/test_api.py
index 2451504c..ba1d0208 100644
--- a/refstack/tests/api/test_api.py
+++ b/refstack/tests/api/test_api.py
@@ -36,6 +36,13 @@ FAKE_TESTS_RESULT = {
     ]
 }
 
+FAKE_JSON_WITH_EMPTY_RESULTS = {
+    'cpid': 'foo',
+    'duration_seconds': 20,
+    'results': [
+    ]
+}
+
 
 class TestResultsController(api.FunctionalTest):
     """Test case for ResultsController."""
@@ -57,6 +64,14 @@ class TestResultsController(api.FunctionalTest):
         except ValueError:
             self.fail("actual_response doesn't contain test_id")
 
+    def test_post_with_empty_result(self):
+        """Test results endpoint with empty test results request."""
+        results = json.dumps(FAKE_JSON_WITH_EMPTY_RESULTS)
+        self.assertRaises(webtest.app.AppError,
+                          self.post_json,
+                          self.URL,
+                          params=results)
+
     def test_post_with_invalid_schema(self):
         """Test post request with invalid schema."""
         results = json.dumps({
diff --git a/refstack/tests/unit/test_validators.py b/refstack/tests/unit/test_validators.py
index 74f5c526..c3535b61 100644
--- a/refstack/tests/unit/test_validators.py
+++ b/refstack/tests/unit/test_validators.py
@@ -74,6 +74,13 @@ class TestResultValidatorTestCase(base.BaseTestCase):
         ]
     }
 
+    FAKE_JSON_WITH_EMPTY_RESULTS = {
+        'cpid': 'foo',
+        'duration_seconds': 20,
+        'results': [
+        ]
+    }
+
     def setUp(self):
         super(TestResultValidatorTestCase, self).setUp()
         self.validator = validators.TestResultValidator()
@@ -134,6 +141,13 @@ class TestResultValidatorTestCase(base.BaseTestCase):
         except api_exc.ValidationError as e:
             self.assertIsInstance(e.exc, jsonschema.ValidationError)
 
+    def test_validation_fail_with_empty_result(self):
+        wrong_request = mock.Mock()
+        wrong_request.body = json.dumps(self.FAKE_JSON_WITH_EMPTY_RESULTS)
+        self.assertRaises(api_exc.ValidationError,
+                          self.validator.validate,
+                          wrong_request)
+
     @mock.patch('jsonschema.validate')
     def test_validation_with_broken_signature(self, mock_validate):
         if six.PY3: