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Diffstat (limited to 'tests/python/bl_pyapi_bpy_utils_units.py')
| -rw-r--r-- | tests/python/bl_pyapi_bpy_utils_units.py | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/tests/python/bl_pyapi_bpy_utils_units.py b/tests/python/bl_pyapi_bpy_utils_units.py new file mode 100644 index 00000000000..f40dab4b5eb --- /dev/null +++ b/tests/python/bl_pyapi_bpy_utils_units.py @@ -0,0 +1,75 @@ +# Apache License, Version 2.0 + +# ./blender.bin --background -noaudio --python tests/python/bl_pyapi_bpy_utils_units.py -- --verbose +import unittest + +from bpy.utils import units + +class UnitsTesting(unittest.TestCase): + # From user typing to 'internal' Blender value. + INPUT_TESTS = ( + # system, type, ref, input, value + ##### LENGTH + ('IMPERIAL', 'LENGTH', "", "1ft", 0.3048), + ('IMPERIAL', 'LENGTH', "", "(1+1)ft", 0.3048 * 2), + ('IMPERIAL', 'LENGTH', "", "1mi4\"", 1609.344 + 0.0254 * 4), + ('METRIC', 'LENGTH', "", "0.005µm", 0.000001 * 0.005), + ('METRIC', 'LENGTH', "", "1e6km", 1000.0 * 1e6), + ('IMPERIAL', 'LENGTH', "", "1ft5cm", 0.3048 + 0.01 * 5), + ('METRIC', 'LENGTH', "", "1ft5cm", 0.3048 + 0.01 * 5), + # Using reference string to find a unit when none is given. + ('IMPERIAL', 'LENGTH', "33.3ft", "1", 0.3048), + ('METRIC', 'LENGTH', "33.3dm", "1", 0.1), + ('IMPERIAL', 'LENGTH', "33.3cm", "1", 0.3048), # ref unit is not in IMPERIAL system, default to feet... + ('IMPERIAL', 'LENGTH', "33.3ft", "1\"", 0.0254), # unused ref unit, since one is given already! + ('IMPERIAL', 'LENGTH', "", "1+1ft", 0.3048 * 2), # default unit taken from current string (feet). + ('METRIC', 'LENGTH', "", "1+1ft", 1.3048), # no metric units, we default to meters. + ('IMPERIAL', 'LENGTH', "", "3+1in+1ft", 0.3048 * 4 + 0.0254), # bigger unit becomes default one! + ('IMPERIAL', 'LENGTH', "", "(3+1)in+1ft", 0.3048 + 0.0254 * 4), + ) + + # From 'internal' Blender value to user-friendly printing + OUTPUT_TESTS = ( + # system, type, prec, sep, compat, value, output + ##### LENGTH + ('IMPERIAL', 'LENGTH', 3, False, False, 0.3048, "1'"), + ('IMPERIAL', 'LENGTH', 3, False, True, 0.3048, "1ft"), + ('IMPERIAL', 'LENGTH', 3, True, False, 0.3048 * 2 + 0.0254 * 5.5, "2' 5.5\""), + # Those next two fail, here again because precision ignores order magnitude :/ + #('IMPERIAL', 'LENGTH', 3, False, False, 1609.344 * 1e6, "1000000mi"), # == 1000000.004mi!!! + #('IMPERIAL', 'LENGTH', 6, False, False, 1609.344 * 1e6, "1000000mi"), # == 1000000.003641mi!!! + ('METRIC', 'LENGTH', 3, True, False, 1000 * 2 + 0.001 * 15, "2km 1.5cm"), + ('METRIC', 'LENGTH', 3, True, False, 1234.56789, "1km 234.6m"), + # Note: precision seems basically unused when using multi units! + ('METRIC', 'LENGTH', 9, True, False, 1234.56789, "1km 234.6m"), + ('METRIC', 'LENGTH', 9, False, False, 1234.56789, "1.23456789km"), + ('METRIC', 'LENGTH', 9, True, False, 1000.000123456789, "1km 0.1mm"), + ) + + def test_units_inputs(self): + # Stolen from FBX addon! + def similar_values(v1, v2, e): + if v1 == v2: + return True + return ((abs(v1 - v2) / max(abs(v1), abs(v2))) <= e) + + for usys, utype, ref, inpt, val in self.INPUT_TESTS: + opt_val = units.to_value(usys, utype, inpt, ref) + # Note: almostequal is not good here, precision is fixed on decimal digits, not variable with + # magnitude of numbers (i.e. 1609.4416 ~= 1609.4456 fails even at 5 of 'places'...). + self.assertTrue(similar_values(opt_val, val, 1e-7), + msg="%s, %s: \"%s\" (ref: \"%s\") => %f, expected %f" + "" % (usys, utype, inpt, ref, opt_val, val)) + + def test_units_outputs(self): + for usys, utype, prec, sep, compat, val, output in self.OUTPUT_TESTS: + opt_str = units.to_string(usys, utype, val, prec, sep, compat) + self.assertEqual(opt_str, output, + msg="%s, %s: %f (precision: %d, separate units: %d, compat units: %d) => " + "\"%s\", expected \"%s\"" % (usys, utype, val, prec, sep, compat, opt_str, output)) + + +if __name__ == '__main__': + import sys + sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else []) + unittest.main() |