diff --git a/PythonModels/systems/test_mql.py b/PythonModels/systems/test_mql.py index bd177ad..fffb3ee 100644 --- a/PythonModels/systems/test_mql.py +++ b/PythonModels/systems/test_mql.py @@ -4944,6 +4944,43 @@ class TestMqlSystem: f"{p4_port1_next_orifice_output_spec.alias} does not connect " f"{p4_port1_next_node_alias}.port_4 to {p4_port1_next_orifice_alias}" ) + p4_port1_next_orifice_resistance = self._pnl00r_line_for_node_port( + p4_port1_next_orifice_node.alias, + "port_3", + ) + p4_port1_next_orifice_resistance_node = other_node3_for_pnl00r( + p4_port1_next_orifice_resistance.name, + p4_port1_next_orifice_node.alias, + ) + p4_port1_next_orifice_resistance_line_spec = self._pnl0003_spec_for_node_port( + p4_port1_next_orifice_resistance_node.alias, + "port_2", + ) + p4_port1_next_orifice_resistance_line = self.pnl0003_assembly.lines[ + p4_port1_next_orifice_resistance_line_spec.alias + ] + p4_port1_next_orifice_resistance_orifice_alias = ( + p4_port1_next_orifice_resistance_line_spec.target_component + if p4_port1_next_orifice_resistance_line_spec.source_component + == p4_port1_next_orifice_resistance_node.alias + else p4_port1_next_orifice_resistance_line_spec.source_component + ) + p4_port1_next_orifice_resistance_orifice = ( + self.pneumatic_assembly.variable_orifices[ + p4_port1_next_orifice_resistance_orifice_alias + ] + ) + p4_port1_far_orifice_direct = self.p4_node_neighborhood( + p4_port1_far_node_alias + ).port_4 + if ( + p4_port1_far_orifice_direct.orifice_alias + != p4_port1_next_orifice_resistance_orifice_alias + ): + raise ValueError( + f"{p4_port1_far_node_alias}.port_4 does not use " + f"{p4_port1_next_orifice_resistance_orifice_alias}" + ) p4_port3_remote_orifice = self.pneumatic_assembly.variable_orifices[ p4_port3_remote_neighborhood.port_4.orifice_alias ] @@ -5067,6 +5104,13 @@ class TestMqlSystem: raise TypeError( f"{p4_port1_next_orifice_alias} is not an AMESim pneumatic orifice" ) + if not isinstance( + p4_port1_next_orifice_resistance_orifice, + AmesimPneumaticOrifice, + ): + raise TypeError( + f"{p4_port1_next_orifice_resistance_orifice_alias} is not an AMESim pneumatic orifice" + ) if not isinstance(p4_bridge_primary_chamber, AmesimPneumaticVolume): raise TypeError( f"{p4_bridge_primary_chamber_alias} is not an AMESim pneumatic volume" @@ -5111,6 +5155,16 @@ class TestMqlSystem: p4_port1_next_orifice_line=p4_port1_next_orifice_line, p4_port1_next_orifice_node=p4_port1_next_orifice_node, p4_port1_next_orifice_output_line=p4_port1_next_orifice_output_line, + p4_port1_next_orifice_resistance=p4_port1_next_orifice_resistance, + p4_port1_next_orifice_resistance_node=( + p4_port1_next_orifice_resistance_node + ), + p4_port1_next_orifice_resistance_line=( + p4_port1_next_orifice_resistance_line + ), + p4_port1_next_orifice_resistance_orifice=( + p4_port1_next_orifice_resistance_orifice + ), p4_bridge_node=p4_bridge_node, p4_bridge_primary_line=p4_bridge_primary_line, p4_bridge_primary_chamber=p4_bridge_primary_chamber, diff --git a/PythonModels/systems/test_mql_closure.py b/PythonModels/systems/test_mql_closure.py index 5d5daaf..2978416 100644 --- a/PythonModels/systems/test_mql_closure.py +++ b/PythonModels/systems/test_mql_closure.py @@ -216,6 +216,10 @@ class TestMqlPn3P4NodeChamberSegmentComponents: p4_port1_next_orifice_line: AmesimPnl0003Pipe p4_port1_next_orifice_node: TestMqlPneumaticNode3 p4_port1_next_orifice_output_line: AmesimPnl0001Pipe + p4_port1_next_orifice_resistance: AmesimPnl00rPipe + p4_port1_next_orifice_resistance_node: TestMqlPneumaticNode3 + p4_port1_next_orifice_resistance_line: AmesimPnl0003Pipe + p4_port1_next_orifice_resistance_orifice: AmesimPneumaticOrifice p4_bridge_node: TestMqlPneumaticNode4 p4_bridge_primary_line: AmesimPnl0001Pipe p4_bridge_primary_chamber: AmesimPneumaticVolume @@ -293,6 +297,8 @@ class TestMqlPn3P4NodeChamberSegmentSnapshot: p4_port1_next_orifice_line_port_1: ThermodynamicProperties p4_port1_next_orifice_line_port_2: ThermodynamicProperties p4_port1_next_orifice_output_line: ThermodynamicProperties + p4_port1_next_orifice_resistance_line_port_1: ThermodynamicProperties + p4_port1_next_orifice_resistance_line_port_2: ThermodynamicProperties p4_bridge_primary_line: ThermodynamicProperties p4_bridge_primary_chamber: ThermodynamicProperties p4_port1_remote_orifice_line_port_1: ThermodynamicProperties @@ -334,6 +340,7 @@ class TestMqlPn3P4NodeChamberSegmentSnapshot: p4_bridge_balance: TestMqlPneumaticNode4Balance p4_port1_remote_orifice_node_balance: TestMqlPneumaticNode3Balance p4_port1_next_orifice_node_balance: TestMqlPneumaticNode3Balance + p4_port1_next_orifice_resistance_node_balance: TestMqlPneumaticNode3Balance p4_port3_remote_balance: TestMqlPneumaticNode4Balance p4_port3_far_balance: TestMqlPneumaticNode4Balance p4_port3_next_balance: TestMqlPneumaticNode4Balance @@ -368,6 +375,10 @@ class TestMqlPn3P4NodeChamberSegmentSnapshot: p4_port1_next_orifice_node_to_line_flow: float p4_port1_next_orifice_line_center_flow: float p4_port1_next_orifice_to_output_line_flow: float + p4_port1_next_orifice_resistance_node_to_next_flow: float + p4_port1_next_orifice_resistance_node_to_line_flow: float + p4_port1_next_orifice_resistance_line_center_flow: float + p4_port1_next_orifice_resistance_to_p4_flow: float p4_bridge_to_port1_next_line_flow: float p4_bridge_chamber_to_line_flow: float p4_bridge_node_to_primary_line_flow: float @@ -480,11 +491,12 @@ class TestMqlPn3P4NodeChamberSegmentClosure: *self.components.p4_port3_next_resistance_chamber_outlet_line.get_state_vector(), *self.components.p4_port1_next_orifice_line.get_state_vector(), *self.components.p4_port1_next_orifice_output_line.get_state_vector(), + *self.components.p4_port1_next_orifice_resistance_line.get_state_vector(), ] def apply_state_vector(self, values: list[float]) -> None: - if len(values) != 102: - raise ValueError("PN3/P4 node chamber segment state vector requires one hundred two values") + if len(values) != 106: + raise ValueError("PN3/P4 node chamber segment state vector requires one hundred six values") self.components.inlet_line.set_state_vector(values[:2]) self.components.volume.set_state_vector(values[2:4]) self.components.outlet_line.set_state_vector(values[4:6]) @@ -528,7 +540,8 @@ class TestMqlPn3P4NodeChamberSegmentClosure: self.components.p4_port3_next_resistance_chamber.set_state_vector(values[92:94]) self.components.p4_port3_next_resistance_chamber_outlet_line.set_state_vector(values[94:96]) self.components.p4_port1_next_orifice_line.set_state_vector(values[96:100]) - self.components.p4_port1_next_orifice_output_line.set_state_vector(values[100:]) + self.components.p4_port1_next_orifice_output_line.set_state_vector(values[100:102]) + self.components.p4_port1_next_orifice_resistance_line.set_state_vector(values[102:]) def snapshot( self, @@ -572,6 +585,12 @@ class TestMqlPn3P4NodeChamberSegmentClosure: p4_port1_next_orifice_output_line = ( self.components.p4_port1_next_orifice_output_line.properties() ) + p4_port1_next_orifice_resistance_line_port_1 = ( + self.components.p4_port1_next_orifice_resistance_line.properties_1() + ) + p4_port1_next_orifice_resistance_line_port_2 = ( + self.components.p4_port1_next_orifice_resistance_line.properties_2() + ) p4_bridge_primary_line = self.components.p4_bridge_primary_line.properties() p4_bridge_primary_chamber = self.components.p4_bridge_primary_chamber.properties() p4_port1_remote_orifice_line_port_1 = ( @@ -955,6 +974,14 @@ class TestMqlPn3P4NodeChamberSegmentClosure: orifice=self.components.p4_port3_next_resistance_chamber_outlet_orifice, ) ) + p4_port1_next_orifice_resistance_node_to_next_flow = ( + self.components.p4_port1_next_orifice_resistance.mass_flow( + port_1_pressure_pa=p4_port1_next_orifice_resistance_line_port_1.p, + port_1_temperature_k=p4_port1_next_orifice_resistance_line_port_1.T, + port_2_pressure_pa=p4_port1_next_orifice_line_port_1.p, + port_2_temperature_k=p4_port1_next_orifice_line_port_1.T, + ) + ) p4_port1_next_orifice_node_balance = ( self.components.p4_port1_next_orifice_node.balance( port_2_temperature_k=p4_port1_next_orifice_line_port_1.T, @@ -967,8 +994,14 @@ class TestMqlPn3P4NodeChamberSegmentClosure: port_1_mass_flow_g_s=( p4_port3_next_resistance_chamber_inlet_node_to_line_flow * 1.0e3 ), - port_3_enthalpy_flow_w=0.0, - port_3_mass_flow_g_s=0.0, + port_3_enthalpy_flow_w=self._enthalpy_flow_from_node( + flow_kg_s=-p4_port1_next_orifice_resistance_node_to_next_flow, + node_h=p4_port1_next_orifice_line_port_1.h, + connected_h=p4_port1_next_orifice_resistance_line_port_1.h, + ), + port_3_mass_flow_g_s=( + -p4_port1_next_orifice_resistance_node_to_next_flow * 1.0e3 + ), ) ) p4_port1_next_orifice_node_to_line_flow = ( @@ -982,6 +1015,34 @@ class TestMqlPn3P4NodeChamberSegmentClosure: p4_boundary=p4_port1_next_orifice_output_line, orifice=self.components.p4_port1_next_orifice, ) + p4_port1_next_orifice_resistance_node_balance = ( + self.components.p4_port1_next_orifice_resistance_node.balance( + port_2_temperature_k=p4_port1_next_orifice_resistance_line_port_1.T, + port_2_pressure_pa=p4_port1_next_orifice_resistance_line_port_1.p, + port_1_enthalpy_flow_w=self._enthalpy_flow_from_node( + flow_kg_s=p4_port1_next_orifice_resistance_node_to_next_flow, + node_h=p4_port1_next_orifice_resistance_line_port_1.h, + connected_h=p4_port1_next_orifice_line_port_1.h, + ), + port_1_mass_flow_g_s=( + p4_port1_next_orifice_resistance_node_to_next_flow * 1.0e3 + ), + port_3_enthalpy_flow_w=0.0, + port_3_mass_flow_g_s=0.0, + ) + ) + p4_port1_next_orifice_resistance_node_to_line_flow = ( + -p4_port1_next_orifice_resistance_node_balance.port_2_mass_flow_g_s + * 1.0e-3 + ) + p4_port1_next_orifice_resistance_line_center_flow = ( + self.components.p4_port1_next_orifice_resistance_line.resistance_mass_flow() + ) + p4_port1_next_orifice_resistance_to_p4_flow = self._line_to_p4_flow( + line=p4_port1_next_orifice_resistance_line_port_2, + p4_boundary=p4_port1_far_primary_line, + orifice=self.components.p4_port1_next_orifice_resistance_orifice, + ) p4_port3_next_resistance_node_balance = ( self.components.p4_port3_next_resistance_node.balance( port_2_temperature_k=p4_port3_next_resistance_node_line_port_1.T, @@ -1162,8 +1223,14 @@ class TestMqlPn3P4NodeChamberSegmentClosure: connected_h=p4_port1_remote_port1_line.h, ), port_3_mass_flow_g_s=-p4_port1_far_node_to_line_flow * 1.0e3, - port_4_enthalpy_flow_w=0.0, - port_4_mass_flow_g_s=0.0, + port_4_enthalpy_flow_w=self._enthalpy_flow_from_node( + flow_kg_s=p4_port1_next_orifice_resistance_to_p4_flow, + node_h=p4_port1_next_orifice_resistance_line_port_2.h, + connected_h=p4_port1_far_primary_line.h, + ), + port_4_mass_flow_g_s=( + p4_port1_next_orifice_resistance_to_p4_flow * 1.0e3 + ), ) p4_port1_far_node_to_primary_line_flow = ( p4_port1_far_balance.port_2_mass_flow_g_s * 1.0e-3 @@ -1318,6 +1385,12 @@ class TestMqlPn3P4NodeChamberSegmentClosure: p4_port1_next_orifice_line_port_1=p4_port1_next_orifice_line_port_1, p4_port1_next_orifice_line_port_2=p4_port1_next_orifice_line_port_2, p4_port1_next_orifice_output_line=p4_port1_next_orifice_output_line, + p4_port1_next_orifice_resistance_line_port_1=( + p4_port1_next_orifice_resistance_line_port_1 + ), + p4_port1_next_orifice_resistance_line_port_2=( + p4_port1_next_orifice_resistance_line_port_2 + ), p4_bridge_primary_line=p4_bridge_primary_line, p4_bridge_primary_chamber=p4_bridge_primary_chamber, p4_port1_remote_orifice_line_port_1=p4_port1_remote_orifice_line_port_1, @@ -1373,6 +1446,9 @@ class TestMqlPn3P4NodeChamberSegmentClosure: p4_bridge_balance=p4_bridge_balance, p4_port1_remote_orifice_node_balance=p4_port1_remote_orifice_node_balance, p4_port1_next_orifice_node_balance=p4_port1_next_orifice_node_balance, + p4_port1_next_orifice_resistance_node_balance=( + p4_port1_next_orifice_resistance_node_balance + ), p4_port3_remote_balance=p4_port3_remote_balance, p4_port3_far_balance=p4_port3_far_balance, p4_port3_next_balance=p4_port3_next_balance, @@ -1423,6 +1499,18 @@ class TestMqlPn3P4NodeChamberSegmentClosure: p4_port1_next_orifice_to_output_line_flow=( p4_port1_next_orifice_to_output_line_flow ), + p4_port1_next_orifice_resistance_node_to_next_flow=( + p4_port1_next_orifice_resistance_node_to_next_flow + ), + p4_port1_next_orifice_resistance_node_to_line_flow=( + p4_port1_next_orifice_resistance_node_to_line_flow + ), + p4_port1_next_orifice_resistance_line_center_flow=( + p4_port1_next_orifice_resistance_line_center_flow + ), + p4_port1_next_orifice_resistance_to_p4_flow=( + p4_port1_next_orifice_resistance_to_p4_flow + ), p4_bridge_to_port1_next_line_flow=p4_bridge_to_port1_next_line_flow, p4_bridge_chamber_to_line_flow=p4_bridge_chamber_to_line_flow, p4_bridge_node_to_primary_line_flow=p4_bridge_node_to_primary_line_flow, @@ -1772,6 +1860,30 @@ class TestMqlPn3P4NodeChamberSegmentClosure: p4_port1_next_orifice_output_line.port_2.m_flow = snapshot.p4_port1_next_orifice_to_output_line_flow p4_port1_next_orifice_output_line.port_2.h_outflow = snapshot.p4_port1_next_orifice_output_line.h + p4_port1_next_orifice_resistance = self.components.p4_port1_next_orifice_resistance + p4_port1_next_orifice_resistance.port_1.p = snapshot.p4_port1_next_orifice_resistance_line_port_1.p + p4_port1_next_orifice_resistance.port_1.m_flow = snapshot.p4_port1_next_orifice_resistance_node_to_next_flow + p4_port1_next_orifice_resistance.port_1.h_outflow = snapshot.p4_port1_next_orifice_resistance_line_port_1.h + p4_port1_next_orifice_resistance.port_2.p = snapshot.p4_port1_next_orifice_line_port_1.p + p4_port1_next_orifice_resistance.port_2.m_flow = -snapshot.p4_port1_next_orifice_resistance_node_to_next_flow + p4_port1_next_orifice_resistance.port_2.h_outflow = snapshot.p4_port1_next_orifice_line_port_1.h + + p4_port1_next_orifice_resistance_line = self.components.p4_port1_next_orifice_resistance_line + p4_port1_next_orifice_resistance_line.port_1.p = snapshot.p4_port1_next_orifice_resistance_line_port_1.p + p4_port1_next_orifice_resistance_line.port_1.m_flow = snapshot.p4_port1_next_orifice_resistance_node_to_line_flow + p4_port1_next_orifice_resistance_line.port_1.h_outflow = snapshot.p4_port1_next_orifice_resistance_line_port_1.h + p4_port1_next_orifice_resistance_line.port_2.p = snapshot.p4_port1_next_orifice_resistance_line_port_2.p + p4_port1_next_orifice_resistance_line.port_2.m_flow = -snapshot.p4_port1_next_orifice_resistance_to_p4_flow + p4_port1_next_orifice_resistance_line.port_2.h_outflow = snapshot.p4_port1_next_orifice_resistance_line_port_2.h + + p4_port1_next_orifice_resistance_orifice = self.components.p4_port1_next_orifice_resistance_orifice + p4_port1_next_orifice_resistance_orifice.port_a.p = snapshot.p4_port1_next_orifice_resistance_line_port_2.p + p4_port1_next_orifice_resistance_orifice.port_a.m_flow = snapshot.p4_port1_next_orifice_resistance_to_p4_flow + p4_port1_next_orifice_resistance_orifice.port_a.h_outflow = snapshot.p4_port1_next_orifice_resistance_line_port_2.h + p4_port1_next_orifice_resistance_orifice.port_b.p = snapshot.p4_port1_far_primary_line.p + p4_port1_next_orifice_resistance_orifice.port_b.m_flow = -snapshot.p4_port1_next_orifice_resistance_to_p4_flow + p4_port1_next_orifice_resistance_orifice.port_b.h_outflow = snapshot.p4_port1_far_primary_line.h + p4_bridge_primary_line = self.components.p4_bridge_primary_line p4_bridge_primary_line.port_1.p = snapshot.p4_bridge_primary_chamber.p p4_bridge_primary_line.port_1.m_flow = snapshot.p4_bridge_chamber_to_line_flow @@ -2472,6 +2584,15 @@ class TestMqlPn3P4NodeChamberSegmentClosure: connected_h_2=snapshot.p4_port1_next_orifice_line_port_2.h, ) ) + ( + p4_port1_next_orifice_resistance_derivative_1, + p4_port1_next_orifice_resistance_derivative_2, + ) = self.components.p4_port1_next_orifice_resistance_line.derivatives_from_connections( + port_1_m_flow=snapshot.p4_port1_next_orifice_resistance_node_to_line_flow, + connected_h_1=snapshot.p4_port1_next_orifice_resistance_line_port_1.h, + port_2_m_flow=-snapshot.p4_port1_next_orifice_resistance_to_p4_flow, + connected_h_2=snapshot.p4_port1_far_primary_line.h, + ) return [ *inlet_derivative.as_vector(), *chamber_derivative.as_vector(), @@ -2524,6 +2645,8 @@ class TestMqlPn3P4NodeChamberSegmentClosure: *p4_port1_next_orifice_derivative_1.as_vector(), *p4_port1_next_orifice_derivative_2.as_vector(), *p4_port1_next_orifice_output_derivative.as_vector(), + *p4_port1_next_orifice_resistance_derivative_1.as_vector(), + *p4_port1_next_orifice_resistance_derivative_2.as_vector(), ] diff --git a/tests/test_test_mql_pnl0001_segment.py b/tests/test_test_mql_pnl0001_segment.py index 1c7411e..bfa8a9b 100644 --- a/tests/test_test_mql_pnl0001_segment.py +++ b/tests/test_test_mql_pnl0001_segment.py @@ -472,8 +472,24 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase): closure.components.p4_port1_next_orifice_output_line.name, "pneumatic_79", ) - self.assertEqual(len(closure.initial_state_vector()), 102) - self.assertEqual(len(rhs), 102) + self.assertEqual( + closure.components.p4_port1_next_orifice_resistance.name, + "pneumatic_107", + ) + self.assertEqual( + closure.components.p4_port1_next_orifice_resistance_node.alias, + "pn_node3_11", + ) + self.assertEqual( + closure.components.p4_port1_next_orifice_resistance_line.name, + "pneumatic_76", + ) + self.assertEqual( + closure.components.p4_port1_next_orifice_resistance_orifice.name, + "pn_morifice_15", + ) + self.assertEqual(len(closure.initial_state_vector()), 106) + self.assertEqual(len(rhs), 106) self.assertAlmostEqual( snapshot.p4_balance.pressure_pa, snapshot.p4_primary_line.p, @@ -569,6 +585,22 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase): closure.components.p4_port1_next_orifice.name, "pn_morifice_11", ) + self.assertEqual( + closure.components.p4_port1_next_orifice_resistance.name, + self.system._pnl00r_line_for_node_port("pn_node3_12", "port_3").name, + ) + self.assertEqual( + closure.components.p4_port1_next_orifice_resistance_node.alias, + "pn_node3_11", + ) + self.assertEqual( + closure.components.p4_port1_next_orifice_resistance_line.name, + self.system._pnl0003_line_for_node_port("pn_node3_11", "port_2").name, + ) + self.assertEqual( + closure.components.p4_port1_next_orifice_resistance_orifice.name, + "pn_morifice_15", + ) self.assertEqual( closure.components.p4_bridge_node.alias, port1_next_port1.remote_node_alias, @@ -809,7 +841,8 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase): self.assertAlmostEqual( snapshot.p4_port1_far_node_to_primary_line_flow + snapshot.p4_port1_far_node_to_line_flow - + snapshot.p4_port1_far_to_next_line_flow, + + snapshot.p4_port1_far_to_next_line_flow + - snapshot.p4_port1_next_orifice_resistance_to_p4_flow, 0.0, delta=1.0e-12, ) @@ -903,7 +936,14 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase): ) self.assertAlmostEqual( snapshot.p4_port1_next_orifice_node_to_line_flow - + snapshot.p4_port3_next_resistance_chamber_inlet_node_to_line_flow, + + snapshot.p4_port3_next_resistance_chamber_inlet_node_to_line_flow + - snapshot.p4_port1_next_orifice_resistance_node_to_next_flow, + 0.0, + delta=1.0e-12, + ) + self.assertAlmostEqual( + snapshot.p4_port1_next_orifice_resistance_node_to_line_flow + + snapshot.p4_port1_next_orifice_resistance_node_to_next_flow, 0.0, delta=1.0e-12, ) @@ -942,14 +982,23 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase): ), delta=1.0e-12, ) - mass_derivative_sum = sum(rhs[index] for index in range(0, 102, 2)) + p4_port1_next_orifice_resistance_line_mass_sum = rhs[102] + rhs[104] + self.assertAlmostEqual( + p4_port1_next_orifice_resistance_line_mass_sum, + ( + snapshot.p4_port1_next_orifice_resistance_node_to_line_flow + - snapshot.p4_port1_next_orifice_resistance_to_p4_flow + ), + delta=1.0e-12, + ) + mass_derivative_sum = sum(rhs[index] for index in range(0, 106, 2)) self.assertAlmostEqual( mass_derivative_sum, 0.0, delta=1.0e-12, ) - def test_simulates_one_hundred_two_state_pn3_p4_node_chamber_segment(self) -> None: + def test_simulates_one_hundred_six_state_pn3_p4_node_chamber_segment(self) -> None: solution = self.system.simulate_pn3_p4_node_chamber_segment_from_spec( self.spec, inlet_node_pressure_pa=15.31e6, @@ -964,8 +1013,8 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase): self.assertTrue(solution.success) self.assertEqual(len(solution.t), 3) - self.assertEqual(len(solution.y), 102) - self.assertEqual([len(row) for row in solution.y], [3] * 102) + self.assertEqual(len(solution.y), 106) + self.assertEqual([len(row) for row in solution.y], [3] * 106) if __name__ == "__main__":