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[test] Expand the tolerance for testing on metal backend #1779

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Aug 27, 2020
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[test] Expand the tolerance for testing on metal backend #1779

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7 changes: 5 additions & 2 deletions python/taichi/testing.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
import taichi as ti


## Helper functions
# Helper functions
def approx(expected, **kwargs):
'''Tweaked pytest.approx for OpenGL low percisions'''
import pytest
Expand All @@ -22,6 +22,9 @@ def __ne__(self, other):
if ti.cfg.arch == ti.opengl:
kwargs['rel'] = max(kwargs.get('rel', 1e-6), 1e-3)

if ti.cfg.arch == ti.metal:
kwargs['rel'] = max(kwargs.get('rel', 1e-6), 1e-4)

return pytest.approx(expected, **kwargs)


Expand All @@ -39,7 +42,7 @@ def make_temp_file(*args, **kwargs):
return name


## Pytest options
# Pytest options
def _get_taichi_archs_fixture():
import pytest

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