Refactor idyntree conversion tests

tests/test_idyntree_conversion.py

@@ -0,0 +1,167 @@
+import casadi as cs
+import numpy as np
+import pytest
+from adam.casadi import KinDynComputations
+from conftest import State, RobotCfg, compute_idyntree_values
+from adam.model.conversions.idyntree import to_idyntree_model
+
+@pytest.fixture(scope="module")
+def setup_test(tests_setup) -> KinDynComputations | RobotCfg | State:
+    robot_cfg, state = tests_setup
+    adam_kin_dyn = KinDynComputations(robot_cfg.model_path, robot_cfg.joints_name_list)
+    adam_kin_dyn.set_frame_velocity_representation(robot_cfg.velocity_representation)
+    robot_cfg.kin_dyn.loadRobotModel(to_idyntree_model(adam_kin_dyn.rbdalgos.model))
+    idyn_function_values = compute_idyntree_values(robot_cfg.kin_dyn, state)
+    robot_cfg.idyn_function_values = idyn_function_values
+    return adam_kin_dyn, robot_cfg, state
+
+
+
+def test_mass_matrix(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_mass_matrix = robot_cfg.idyn_function_values.mass_matrix
+    adam_mass_matrix = cs.DM(adam_kin_dyn.mass_matrix(state.H, state.joints_pos))
+    assert adam_mass_matrix - idyn_mass_matrix == pytest.approx(0.0, abs=1e-5)
+    adam_mass_matrix = cs.DM(adam_kin_dyn.mass_matrix_fun()(state.H, state.joints_pos))
+    assert adam_mass_matrix - idyn_mass_matrix == pytest.approx(0.0, abs=1e-5)
+
+
+def test_CMM(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_cmm = robot_cfg.idyn_function_values.centroidal_momentum_matrix
+    adam_cmm = cs.DM(adam_kin_dyn.centroidal_momentum_matrix(state.H, state.joints_pos))
+    assert adam_cmm - idyn_cmm == pytest.approx(0.0, abs=1e-5)
+    adam_cmm = cs.DM(
+        adam_kin_dyn.centroidal_momentum_matrix_fun()(state.H, state.joints_pos)
+    )
+    assert adam_cmm - idyn_cmm == pytest.approx(0.0, abs=1e-5)
+
+
+def test_CoM_pos(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_com = robot_cfg.idyn_function_values.CoM_position
+    adam_com = cs.DM(adam_kin_dyn.CoM_position_fun()(state.H, state.joints_pos))
+    assert adam_com - idyn_com == pytest.approx(0.0, abs=1e-5)
+    adam_com = cs.DM(adam_kin_dyn.CoM_position_fun()(state.H, state.joints_pos))
+    assert adam_com - idyn_com == pytest.approx(0.0, abs=1e-5)
+
+
+def test_total_mass(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_total_mass = robot_cfg.idyn_function_values.total_mass
+    assert adam_kin_dyn.get_total_mass() - idyn_total_mass == pytest.approx(
+        0.0, abs=1e-5
+    )
+
+
+def test_jacobian(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_jacobian = robot_cfg.idyn_function_values.jacobian
+    adam_jacobian = cs.DM(adam_kin_dyn.jacobian("l_sole", state.H, state.joints_pos))
+    assert adam_jacobian - idyn_jacobian == pytest.approx(0.0, abs=1e-5)
+    adam_jacobian = cs.DM(
+        adam_kin_dyn.jacobian_fun("l_sole")(state.H, state.joints_pos)
+    )
+    assert adam_jacobian - idyn_jacobian == pytest.approx(0.0, abs=1e-5)
+
+
+def test_jacobian_non_actuated(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_jacobian = robot_cfg.idyn_function_values.jacobian_non_actuated
+    adam_jacobian = cs.DM(adam_kin_dyn.jacobian("head", state.H, state.joints_pos))
+    assert adam_jacobian - idyn_jacobian == pytest.approx(0.0, abs=1e-5)
+    adam_jacobian = cs.DM(adam_kin_dyn.jacobian_fun("head")(state.H, state.joints_pos))
+    assert adam_jacobian - idyn_jacobian == pytest.approx(0.0, abs=1e-5)
+
+
+def test_jacobian_dot(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_jacobian_dot_nu = robot_cfg.idyn_function_values.jacobian_dot_nu
+    adam_jacobian_dot_nu = cs.DM(
+        adam_kin_dyn.jacobian_dot(
+            "l_sole", state.H, state.joints_pos, state.base_vel, state.joints_vel
+        )
+    ) @ np.concatenate((state.base_vel, state.joints_vel))
+    assert idyn_jacobian_dot_nu - adam_jacobian_dot_nu == pytest.approx(0.0, abs=1e-5)
+    adam_jacobian_dot_nu = cs.DM(
+        adam_kin_dyn.jacobian_dot_fun("l_sole")(
+            state.H, state.joints_pos, state.base_vel, state.joints_vel
+        )
+    ) @ np.concatenate((state.base_vel, state.joints_vel))
+    assert idyn_jacobian_dot_nu - adam_jacobian_dot_nu == pytest.approx(0.0, abs=1e-5)
+
+
+def test_relative_jacobian(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_jacobian = robot_cfg.idyn_function_values.relative_jacobian
+    adam_jacobian = cs.DM(adam_kin_dyn.relative_jacobian("l_sole", state.joints_pos))
+    assert idyn_jacobian - adam_jacobian == pytest.approx(0.0, abs=1e-5)
+    adam_jacobian = cs.DM(
+        adam_kin_dyn.relative_jacobian_fun("l_sole")(state.joints_pos)
+    )
+    assert idyn_jacobian - adam_jacobian == pytest.approx(0.0, abs=1e-5)
+
+
+def test_fk(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_H = robot_cfg.idyn_function_values.forward_kinematics
+    adam_H = cs.DM(adam_kin_dyn.forward_kinematics("l_sole", state.H, state.joints_pos))
+    assert idyn_H - adam_H == pytest.approx(0.0, abs=1e-5)
+    adam_H = cs.DM(
+        adam_kin_dyn.forward_kinematics_fun("l_sole")(state.H, state.joints_pos)
+    )
+    assert idyn_H - adam_H == pytest.approx(0.0, abs=1e-5)
+
+
+def test_fk_non_actuated(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_H = robot_cfg.idyn_function_values.forward_kinematics_non_actuated
+    adam_H = cs.DM(adam_kin_dyn.forward_kinematics("head", state.H, state.joints_pos))
+    assert idyn_H - adam_H == pytest.approx(0.0, abs=1e-5)
+    adam_H = cs.DM(
+        adam_kin_dyn.forward_kinematics_fun("head")(state.H, state.joints_pos)
+    )
+    assert idyn_H - adam_H == pytest.approx(0.0, abs=1e-5)
+
+
+def test_bias_force(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_h = robot_cfg.idyn_function_values.bias_forces
+    adam_h = cs.DM(
+        adam_kin_dyn.bias_force(
+            state.H, state.joints_pos, state.base_vel, state.joints_vel
+        )
+    )
+    assert idyn_h - adam_h == pytest.approx(0.0, abs=1e-4)
+    adam_h = cs.DM(
+        adam_kin_dyn.bias_force_fun()(
+            state.H, state.joints_pos, state.base_vel, state.joints_vel
+        )
+    )
+    assert idyn_h - adam_h == pytest.approx(0.0, abs=1e-4)
+
+
+def test_coriolis_matrix(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_coriolis = robot_cfg.idyn_function_values.coriolis_term
+    adam_coriolis = cs.DM(
+        adam_kin_dyn.coriolis_term(
+            state.H, state.joints_pos, state.base_vel, state.joints_vel
+        )
+    )
+    assert idyn_coriolis - adam_coriolis == pytest.approx(0.0, abs=1e-4)
+    adam_coriolis = cs.DM(
+        adam_kin_dyn.coriolis_term_fun()(
+            state.H, state.joints_pos, state.base_vel, state.joints_vel
+        )
+    )
+    assert idyn_coriolis - adam_coriolis == pytest.approx(0.0, abs=1e-4)
+
+
+def test_gravity_term(setup_test):
+    adam_kin_dyn, robot_cfg, state = setup_test
+    idyn_gravity = robot_cfg.idyn_function_values.gravity_term
+    adam_gravity = cs.DM(adam_kin_dyn.gravity_term(state.H, state.joints_pos))
+    assert idyn_gravity - adam_gravity == pytest.approx(0.0, abs=1e-4)
+    adam_gravity = cs.DM(adam_kin_dyn.gravity_term_fun()(state.H, state.joints_pos))
+    assert idyn_gravity - adam_gravity == pytest.approx(0.0, abs=1e-4)