Fix test, ensure ordering when comparing

Author: gonzalocasas

tests/robots/test_semantics.py

@@ -22,17 +22,17 @@ def panda_urdf():
 def test_panda_srdf_file(panda_srdf, panda_urdf):
     model = RobotModel.from_urdf_file(panda_urdf)
     semantics = RobotSemantics.from_srdf_file(panda_srdf, model)
-    assert semantics.group_names == ['panda_arm', 'hand', 'panda_arm_hand']
+    assert sorted(semantics.group_names) == sorted(['panda_arm', 'hand', 'panda_arm_hand'])
     assert semantics.main_group_name == 'panda_arm_hand'
     assert semantics.get_base_link_name('panda_arm') == 'panda_link0'
     assert semantics.get_end_effector_link_name('panda_arm') == 'panda_link8'
     assert semantics.get_configurable_joint_names('panda_arm') == ['panda_joint1',
-                                                                   'panda_joint2',
-                                                                   'panda_joint3',
-                                                                   'panda_joint4',
-                                                                   'panda_joint5',
-                                                                   'panda_joint6',
-                                                                   'panda_joint7']
+                                                                    'panda_joint2',
+                                                                    'panda_joint3',
+                                                                    'panda_joint4',
+                                                                    'panda_joint5',
+                                                                    'panda_joint6',
+                                                                    'panda_joint7']
     all_configurable_joint_names = [j.name for j in semantics.get_all_configurable_joints()]
     assert all_configurable_joint_names == ['panda_joint1',
                                             'panda_joint2',
@@ -49,7 +49,7 @@ def test_panda_srdf_file(panda_srdf, panda_urdf):
 def test_ur5_semantics():
     robot = Ur5Robot()
     semantics = robot.semantics
-    assert semantics.group_names == ['manipulator', 'endeffector']
+    assert sorted(semantics.group_names) == sorted(['manipulator', 'endeffector'])
     assert semantics.main_group_name == 'manipulator'
     assert semantics.get_base_link_name() == 'base_link'
     assert semantics.get_end_effector_link_name() == 'ee_link'