1 files changed, 26 insertions, 0 deletions
diff --git a/testing/marionette/harness/marionette_harness/tests/unit/test_get_computed_label.py b/testing/marionette/harness/marionette_harness/tests/unit/test_get_computed_label.py
new file mode 100644
index 0000000000..07091319c9
--- /dev/null
+++ b/testing/marionette/harness/marionette_harness/tests/unit/test_get_computed_label.py
@@ -0,0 +1,26 @@
+# 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/.
+
+from six.moves.urllib.parse import quote
+
+from marionette_driver import By, errors
+from marionette_harness import MarionetteTestCase
+
+
+def inline(doc):
+    return "data:text/html;charset=utf-8,{}".format(quote(doc))
+
+
+class TestGetComputedLabel(MarionetteTestCase):
+    def test_can_get_computed_label(self):
+        self.marionette.navigate(inline("<label for=b>foo<label><input id=b>"))
+        computed_label = self.marionette.find_element(By.ID, "b").computed_label
+        self.assertEqual(computed_label, "foo")
+
+    def test_get_computed_label_no_such_element(self):
+        self.marionette.navigate(inline("<div id=a>"))
+        element = self.marionette.find_element(By.ID, "a")
+        element.id = "b"
+        with self.assertRaises(errors.NoSuchElementException):
+            element.computed_label