fe522bc66b
Add new function to force unix line ends and use it in compare_inp_files and compare_stats. Signed-off-by: Przemo Firszt <przemo@firszt.eu>
299 lines
14 KiB
Python
299 lines
14 KiB
Python
# Unit test for the FEM module
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#***************************************************************************
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#* Copyright (c) 2015 - FreeCAD Developers *
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#* Author: Przemo Firszt <przemo@firszt.eu> *
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#* *
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#* This file is part of the FreeCAD CAx development system. *
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#* *
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#* This program is free software; you can redistribute it and/or modify *
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#* it under the terms of the GNU Lesser General Public License (LGPL) *
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#* as published by the Free Software Foundation; either version 2 of *
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#* the License, or (at your option) any later version. *
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#* for detail see the LICENCE text file. *
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#* *
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#* FreeCAD is distributed in the hope that it will be useful, *
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#* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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#* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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#* GNU Library General Public License for more details. *
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#* *
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#* You should have received a copy of the GNU Library General Public *
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#* License along with FreeCAD; if not, write to the Free Software *
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#* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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#* USA *
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#* *
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#***************************************************************************/
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import Fem
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import FemTools
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import FreeCAD
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import MechanicalAnalysis
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import MechanicalMaterial
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import csv
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import tempfile
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import unittest
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mesh_name = 'Mesh'
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home_path = FreeCAD.getHomePath()
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temp_dir = tempfile.gettempdir()
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test_file_dir = home_path + 'Mod/Fem/test_files/ccx'
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static_base_name = 'cube_static'
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frequency_base_name = 'cube_frequency'
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static_analysis_dir = temp_dir + '/FEM_static'
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frequency_analysis_dir = temp_dir + '/FEM_frequency'
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static_analysis_inp_file = test_file_dir + '/' + static_base_name + '.inp'
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static_expected_values = test_file_dir + "/cube_static_expected_values"
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frequency_analysis_inp_file = test_file_dir + '/' + frequency_base_name + '.inp'
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frequency_expected_values = test_file_dir + "/cube_frequency_expected_values"
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mesh_points_file = test_file_dir + '/mesh_points.csv'
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mesh_volumes_file = test_file_dir + '/mesh_volumes.csv'
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def fcc_print(message):
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FreeCAD.Console.PrintMessage('{} \n'.format(message))
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class FemTest(unittest.TestCase):
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def setUp(self):
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try:
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FreeCAD.setActiveDocument("FemTest")
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except:
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FreeCAD.newDocument("FemTest")
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finally:
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FreeCAD.setActiveDocument("FemTest")
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self.active_doc = FreeCAD.ActiveDocument
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self.box = self.active_doc.addObject("Part::Box", "Box")
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self.active_doc.recompute()
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def create_new_analysis(self):
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self.analysis = MechanicalAnalysis.makeMechanicalAnalysis('MechanicalAnalysis')
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self.active_doc.recompute()
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def create_new_mesh(self):
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self.mesh_object = self.active_doc.addObject('Fem::FemMeshObject', mesh_name)
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self.mesh = Fem.FemMesh()
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with open(mesh_points_file, 'r') as points_file:
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reader = csv.reader(points_file)
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for p in reader:
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self.mesh.addNode(float(p[1]), float(p[2]), float(p[3]), int(p[0]))
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with open(mesh_volumes_file, 'r') as volumes_file:
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reader = csv.reader(volumes_file)
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for v in reader:
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self.mesh.addVolume([int(v[2]), int(v[1]), int(v[3]), int(v[4]), int(v[5]),
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int(v[7]), int(v[6]), int(v[9]), int(v[8]), int(v[10])],
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int(v[0]))
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self.mesh_object.FemMesh = self.mesh
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self.active_doc.recompute()
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def create_new_material(self):
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self.new_material_object = MechanicalMaterial.makeMechanicalMaterial('MechanicalMaterial')
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mat = self.new_material_object.Material
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mat['Name'] = "Steel"
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mat['YoungsModulus'] = "200000 MPa"
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mat['PoissonRatio'] = "0.30"
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mat['Density'] = "7900 kg/m^3"
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self.new_material_object.Material = mat
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def create_fixed_constraint(self):
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self.fixed_constraint = self.active_doc.addObject("Fem::ConstraintFixed", "FemConstraintFixed")
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self.fixed_constraint.References = [(self.box, "Face1")]
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def create_force_constraint(self):
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self.force_constraint = self.active_doc.addObject("Fem::ConstraintForce", "FemConstraintForce")
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self.force_constraint.References = [(self.box, "Face2")]
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self.force_constraint.Force = 10.000000
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self.force_constraint.Direction = (self.box, ["Edge5"])
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self.force_constraint.Reversed = True
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def create_pressure_constraint(self):
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self.pressure_constraint = self.active_doc.addObject("Fem::ConstraintPressure", "FemConstraintPressure")
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self.pressure_constraint.References = [(self.box, "Face2")]
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self.pressure_constraint.Pressure = 10.000000
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self.pressure_constraint.Reversed = True
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def force_unix_line_ends(self, line_list):
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new_line_list = []
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for l in line_list:
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if l.endswith("\r\n"):
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l = l[:-2] + '\n'
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new_line_list.append(l)
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return new_line_list
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def compare_inp_files(self, file_name1, file_name2):
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file1 = open(file_name1, 'r')
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f1 = file1.readlines()
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file1.close()
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lf1 = [l for l in f1 if not l.startswith('** written ')]
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lf1 = self.force_unix_line_ends(lf1)
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file2 = open(file_name2, 'r')
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f2 = file2.readlines()
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file2.close()
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lf2 = [l for l in f2 if not l.startswith('** written ')]
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lf2 = self.force_unix_line_ends(lf2)
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import difflib
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diff = difflib.unified_diff(lf1, lf2, n=0)
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result = ''
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for l in diff:
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result += l
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if result:
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result = "Comparing {} to {} failed!\n".format(file_name1, file_name2) + result
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return result
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def compare_stats(self, fea, stat_file=None):
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if stat_file:
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sf = open(stat_file, 'r')
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sf_content = sf.readlines()
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sf.close()
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sf_content = self.force_unix_line_ends(sf_content)
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stat_types = ["U1", "U2", "U3", "Uabs", "Sabs"]
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stats = []
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for s in stat_types:
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stats.append("{}: {}\n".format(s, fea.get_stats(s)))
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if sf_content != stats:
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fcc_print("Expected stats from {}".format(stat_file))
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fcc_print(sf_content)
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fcc_print("Stats read from {}.frd file".format(fea.base_name))
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fcc_print(stats)
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return True
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return False
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def test_new_analysis(self):
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fcc_print('--------------- Start of FEM tests ---------------')
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fcc_print('Checking FEM new analysis...')
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self.create_new_analysis()
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self.assertTrue(self.analysis, "FemTest of new analysis failed")
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fcc_print('Checking FEM new mesh...')
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self.create_new_mesh()
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self.assertTrue(self.mesh, "FemTest of new mesh failed")
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self.analysis.Member = self.analysis.Member + [self.mesh_object]
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fcc_print('Checking FEM new material...')
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self.create_new_material()
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self.assertTrue(self.new_material_object, "FemTest of new material failed")
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self.analysis.Member = self.analysis.Member + [self.new_material_object]
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fcc_print('Checking FEM new fixed constraint...')
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self.create_fixed_constraint()
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self.assertTrue(self.fixed_constraint, "FemTest of new fixed constraint failed")
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self.analysis.Member = self.analysis.Member + [self.fixed_constraint]
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fcc_print('Checking FEM new force constraint...')
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self.create_force_constraint()
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self.assertTrue(self.force_constraint, "FemTest of new force constraint failed")
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self.analysis.Member = self.analysis.Member + [self.force_constraint]
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fcc_print('Checking FEM new pressure constraint...')
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self.create_pressure_constraint()
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self.assertTrue(self.pressure_constraint, "FemTest of new pressure constraint failed")
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self.analysis.Member = self.analysis.Member + [self.pressure_constraint]
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fea = FemTools.FemTools(self.analysis, test_mode=True)
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fcc_print('Setting up working directory {}'.format(static_analysis_dir))
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fea.setup_working_dir(static_analysis_dir)
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self.assertTrue(True if fea.working_dir == static_analysis_dir else False,
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"Setting working directory {} failed".format(static_analysis_dir))
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fcc_print('Checking FEM inp file prerequisites for static analysis...')
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error = fea.check_prerequisites()
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self.assertFalse(error, "FemTools check_prerequisites returned error message: {}".format(error))
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fcc_print('Checking FEM inp file write...')
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fcc_print('Setting analysis type to \'static\"')
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fea.set_analysis_type("static")
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self.assertTrue(True if fea.analysis_type == 'static' else False, "Setting anlysis type to \'static\' failed")
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fcc_print('Writing {}/{}.inp for static analysis'.format(static_analysis_dir, mesh_name))
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error = fea.write_inp_file()
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self.assertFalse(error, "Writing failed")
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fcc_print('Comparing {} to {}/{}.inp'.format(static_analysis_inp_file, static_analysis_dir, mesh_name))
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ret = self.compare_inp_files(static_analysis_inp_file, static_analysis_dir + "/" + mesh_name + '.inp')
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self.assertFalse(ret, "FemTools write_inp_file test failed.\n{}".format(ret))
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fcc_print('Setting up working directory to {} in order to read simulated calculations'.format(test_file_dir))
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fea.setup_working_dir(test_file_dir)
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self.assertTrue(True if fea.working_dir == test_file_dir else False,
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"Setting working directory {} failed".format(test_file_dir))
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fcc_print('Setting base name to read test {}.frd file...'.format('cube_static'))
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fea.set_base_name(static_base_name)
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self.assertTrue(True if fea.base_name == static_base_name else False,
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"Setting base name to {} failed".format(static_base_name))
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fcc_print('Setting inp file name to read test {}.frd file...'.format('cube_static'))
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fea.set_inp_file_name()
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self.assertTrue(True if fea.inp_file_name == static_analysis_inp_file else False,
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"Setting inp file name to {} failed".format(static_analysis_inp_file))
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fcc_print('Checking FEM frd file read from static analysis...')
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fea.load_results()
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fcc_print('Result object created as \"{}\"'.format(fea.result_object.Name))
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self.assertTrue(fea.results_present, "Cannot read results from {}.frd frd file".format(fea.base_name))
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fcc_print('Reading stats from result object for static analysis...')
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ret = self.compare_stats(fea, static_expected_values)
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self.assertFalse(ret, "Invalid results read from .frd file")
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fcc_print('Setting analysis type to \'frequency\"')
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fea.set_analysis_type("frequency")
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self.assertTrue(True if fea.analysis_type == 'frequency' else False, "Setting anlysis type to \'frequency\' failed")
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fcc_print('Setting up working directory to {} in order to write frequency calculations'.format(frequency_analysis_dir))
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fea.setup_working_dir(frequency_analysis_dir)
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self.assertTrue(True if fea.working_dir == frequency_analysis_dir else False,
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"Setting working directory {} failed".format(frequency_analysis_dir))
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fcc_print('Setting eigenmode calculation parameters')
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fea.set_eigenmode_parameters(number=10, limit_low=0.0, limit_high=1000000.0)
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self.assertTrue(True if fea.eigenmode_parameters == (10, 0.0, 1000000.0) else False,
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"Setting eigenmode calculation parameters failed")
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fcc_print('Checking FEM inp file prerequisites for frequency analysis...')
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error = fea.check_prerequisites()
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self.assertFalse(error, "FemTools check_prerequisites returned error message: {}".format(error))
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fcc_print('Writing {}/{}.inp for frequency analysis'.format(frequency_analysis_dir, mesh_name))
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error = fea.write_inp_file()
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self.assertFalse(error, "Writing failed")
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fcc_print('Comparing {} to {}/{}.inp'.format(frequency_analysis_inp_file, frequency_analysis_dir, mesh_name))
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ret = self.compare_inp_files(frequency_analysis_inp_file, frequency_analysis_dir + "/" + mesh_name + '.inp')
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self.assertFalse(ret, "FemTools write_inp_file test failed.\n{}".format(ret))
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fcc_print('Setting up working directory to {} in order to read simulated calculations'.format(test_file_dir))
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fea.setup_working_dir(test_file_dir)
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self.assertTrue(True if fea.working_dir == test_file_dir else False,
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"Setting working directory {} failed".format(test_file_dir))
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fcc_print('Setting base name to read test {}.frd file...'.format(frequency_base_name))
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fea.set_base_name(frequency_base_name)
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self.assertTrue(True if fea.base_name == frequency_base_name else False,
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"Setting base name to {} failed".format(frequency_base_name))
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fcc_print('Setting inp file name to read test {}.frd file...'.format('cube_frequency'))
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fea.set_inp_file_name()
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self.assertTrue(True if fea.inp_file_name == frequency_analysis_inp_file else False,
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"Setting inp file name to {} failed".format(frequency_analysis_inp_file))
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fcc_print('Checking FEM frd file read from frequency analysis...')
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fea.load_results()
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fcc_print('Last result object created as \"{}\"'.format(fea.result_object.Name))
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self.assertTrue(fea.results_present, "Cannot read results from {}.frd frd file".format(fea.base_name))
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fcc_print('Reading stats from result object for frequency analysis...')
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ret = self.compare_stats(fea, frequency_expected_values)
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self.assertFalse(ret, "Invalid results read from .frd file")
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fcc_print('--------------- End of FEM tests ---------------')
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def tearDown(self):
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FreeCAD.closeDocument("FemTest")
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pass
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