1 files changed, 72 insertions, 0 deletions
diff --git a/testing/marionette/harness/marionette_harness/tests/unit/test_data_driven.py b/testing/marionette/harness/marionette_harness/tests/unit/test_data_driven.py
new file mode 100644
index 0000000000..b7d1ecf5ff
--- /dev/null
+++ b/testing/marionette/harness/marionette_harness/tests/unit/test_data_driven.py
@@ -0,0 +1,72 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import six
+
+from marionette_harness.marionette_test import (
+    parameterized,
+    with_parameters,
+    MetaParameterized,
+    MarionetteTestCase,
+)
+
+
+@six.add_metaclass(MetaParameterized)
+class Parameterizable(object):
+    pass
+
+
+class TestDataDriven(MarionetteTestCase):
+    def test_parameterized(self):
+        class Test(Parameterizable):
+            def __init__(self):
+                self.parameters = []
+
+            @parameterized("1", "thing", named=43)
+            @parameterized("2", "thing2")
+            def test(self, thing, named=None):
+                self.parameters.append((thing, named))
+
+        self.assertFalse(hasattr(Test, "test"))
+        self.assertTrue(hasattr(Test, "test_1"))
+        self.assertTrue(hasattr(Test, "test_2"))
+
+        test = Test()
+        test.test_1()
+        test.test_2()
+
+        self.assertEqual(test.parameters, [("thing", 43), ("thing2", None)])
+
+    def test_with_parameters(self):
+        DATA = [("1", ("thing",), {"named": 43}), ("2", ("thing2",), {"named": None})]
+
+        class Test(Parameterizable):
+            def __init__(self):
+                self.parameters = []
+
+            @with_parameters(DATA)
+            def test(self, thing, named=None):
+                self.parameters.append((thing, named))
+
+        self.assertFalse(hasattr(Test, "test"))
+        self.assertTrue(hasattr(Test, "test_1"))
+        self.assertTrue(hasattr(Test, "test_2"))
+
+        test = Test()
+        test.test_1()
+        test.test_2()
+
+        self.assertEqual(test.parameters, [("thing", 43), ("thing2", None)])
+
+    def test_parameterized_same_name_raises_error(self):
+        with self.assertRaises(KeyError):
+
+            class Test(Parameterizable):
+                @parameterized("1", "thing", named=43)
+                @parameterized("1", "thing2")
+                def test(self, thing, named=None):
+                    pass
+
+    def test_marionette_test_case_is_parameterizable(self):
+        self.assertTrue(isinstance(MarionetteTestCase, MetaParameterized))