tests/subfiles.py

Sat, 01 Jun 2019 10:48:03 +0300

author
Teemu Piippo <teemu@hecknology.net>
date
Sat, 01 Jun 2019 10:48:03 +0300
changeset 57
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parent 55
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child 62
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permissions
-rw-r--r--

fixed the web front

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1 from testsuite import warning, error
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2 import testsuite
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3 from geometry import *
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4 from os.path import dirname
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5 from pathlib import Path
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6 from configparser import ConfigParser
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7 import math
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8 ini_path = Path(dirname(__file__)) / 'library-standards.ini'
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9 library_standards = ConfigParser()
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10
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11 with ini_path.open() as file:
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12 library_standards.read_file(file)
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14 def determinant_test(model):
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15 '''
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16 Checks all subfile references for matrices with rows or columns all
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17 zero.
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18 '''
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19 yield from (
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20 error(subfile_reference, 'zero-determinant')
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21 for subfile_reference in model.subfile_references
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22 if abs(subfile_reference.matrix.determinant() - 0) < 1e-15
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23 )
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25 def scaling_description(scaling, axes = 'xyz'):
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26 '''
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27 Returns a pretty description of a scaling vector. The axes parameter
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28 controls what axes are printed and can be used to filter away
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29 uninteresting values.
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30 '''
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31 return ', '.join(
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32 str.format('{} = {}', letter, getattr(scaling, letter))
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33 for letter in axes
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34 )
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35
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36 def check_scaling(scaling, axes):
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37 ''' Returns whether all given axes on the given scaling vector are 1. '''
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38 return all(
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39 abs(getattr(scaling, axis) - 1) < 1e-5
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40 for axis in axes
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41 )
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42
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43 # Restriction to checking function mapping.
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44 restriction_tests = {
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45 'no scaling': lambda scaling: check_scaling(scaling, 'xyz'),
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46 'y-scaling only': lambda scaling: check_scaling(scaling, 'xz'),
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47 'stud3-like scaling': lambda scaling: all([
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48 check_scaling(scaling, 'xz'),
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49 # check if y-scaling is 1 or -1
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50 abs(abs(scaling.y) - 1) < 1e-5,
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51 ]),
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52 }
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54 def scaling_legality_test(model):
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55 '''
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56 Checks the part against primitive references with bad scaling. Some
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57 primitives (e.g. pegs) are not allowed to be scaled in the
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58 X or Z directions. Some (e.g. most studs) are not allowed to be scaled
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59 in the Y direction either.
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60 '''
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61 from fnmatch import fnmatch
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62 scaling_restrictions = library_standards['scaling restrictions']
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63 for subfile_reference in model.subfile_references:
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64 primitive = subfile_reference.subfile_path.lower()
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65 scaling = subfile_reference.matrix.scaling_vector()
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66 # Find all restrictions that apply to this subfile reference.
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67 restrictions = {
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68 restriction
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69 for pattern, restriction in scaling_restrictions.items()
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70 if fnmatch(primitive, pattern)
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71 }
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72 # Check restrictions against the subfile. If any restrictions were
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73 # found then the scaling vector must pass at least one of them.
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74 if restrictions and not any(
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75 restriction_tests[restriction](scaling)
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76 for restriction in restrictions
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77 ):
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78 interesting_axes = ''.join(
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79 axis
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80 for axis in 'xyz'
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81 if abs(getattr(scaling, axis) - 1) > 1e-5
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82 )
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83 yield warning(subfile_reference, 'illegal-scaling',
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84 primitive = primitive,
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85 axes = interesting_axes,
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86 scaling = scaling)
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87
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88 def dependent_subfile_tests(model):
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89 '''
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90 Tests subfile references for such qualities that are dependent on the
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91 actual contents of the subfiles. Checks whether moved-to files are used.
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92 Checks whether flat subfiles are scaled in the flat direction.
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93 '''
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94 import filecache
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95 cache = filecache.SubfileCache(model.ldraw_directories)
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96 failed_subfiles = set()
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97 for subfile_reference in model.subfile_references:
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98 path = subfile_reference.subfile_path.lower()
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99 if path in failed_subfiles:
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100 # Already proven to be a bad apple, don't complain twice
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101 pass
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102 else:
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103 try:
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104 subfile = cache.prepare_file(path)
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105 except filecache.CyclicalReferenceError as e:
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106 failed_subfiles.add(path)
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107 yield error(subfile_reference, 'cyclical-reference',
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108 chain = str(e),
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109 )
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110 if not subfile.valid:
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111 yield error(subfile_reference, 'bad-subfile',
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112 path = path,
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113 problem_text = subfile.problem,
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114 )
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115 failed_subfiles.add(path)
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116 else:
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117 import re
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118 match = re.search(r'^\~Moved(?: to (\w+))?$', subfile.description)
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119 if match:
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120 yield error(subfile_reference, 'moved-file-used',
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121 moved_file = path,
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122 new_file = match.group(1))
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123 scaling_vector = subfile_reference.matrix.scaling_vector()
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124 scaled_dimensions = {
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125 dimension
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126 for dimension in subfile.flatness
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127 if not math.isclose(
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128 getattr(scaling_vector, dimension),
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129 1,
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130 abs_tol = 1.0e-05
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131 )
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132 }
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133 scaled_flat_dimensions = subfile.flatness & scaled_dimensions
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134 if scaled_flat_dimensions:
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135 yield testsuite.notice(subfile_reference, 'unnecessary-scaling',
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136 scaled_flat_dimensions = scaled_flat_dimensions,
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137 scaling_vector = scaling_vector,
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138 )
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139
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140 def dimensions_description(dimensions):
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141 sorted_dims = sorted(dimensions)
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142 if len(sorted_dims) == 1:
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143 return sorted_dims[0] + ' dimension'
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144 else:
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145 return str.format('{} and {} dimensions',
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146 ', '.join(sorted_dims[:-1]),
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147 sorted_dims[-1],
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148 )
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149
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150 manifest = {
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151 'tests': {
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152 'determinant': determinant_test,
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153 'scaling-legality': scaling_legality_test,
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154 'dependent-subfiles': dependent_subfile_tests,
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155 },
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156 'messages': {
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157 'zero-determinant': 'matrix determinant is zero '
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158 '(row or column all zero)',
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159 'illegal-scaling': lambda primitive, scaling, axes:
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160 str.format('scaling of unscalable primitive {} ({})',
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161 primitive,
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162 scaling_description(scaling, axes),
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163 ),
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164 'cyclical-reference': lambda chain:
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165 str.format('cyclical subfile dependency: {chain}',
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166 **locals(),
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167 ),
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168 'bad-subfile': lambda path, problem_text:
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169 str.format('cannot process subfile "{path}": {problem_text}',
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170 **locals(),
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171 ),
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172 'moved-file-used': lambda moved_file, new_file:
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173 str.format('subfile "{moved_file}" has been moved to "{new_file}"',
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174 **locals(),
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175 ),
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176 'unnecessary-scaling': lambda scaled_flat_dimensions, scaling_vector:
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177 str.format(
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178 'subfile unnecessarily scaled in the {dims} ({scaling})',
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179 dims = dimensions_description(scaled_flat_dimensions),
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180 scaling = scaling_description(scaling_vector),
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181 )
23
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182 },
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183 }

mercurial