mirror of
https://github.com/ROCm/jax.git
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359 lines
10 KiB
Python
359 lines
10 KiB
Python
# Copyright 2020 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import re
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import sys
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import traceback
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import unittest
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from absl.testing import absltest
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from absl.testing import parameterized
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import jax
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from jax import core, grad, jit, vmap, lax
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import jax.numpy as jnp
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from jax import test_util as jtu
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from jax._src import source_info_util
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from jax._src import traceback_util
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from jax.config import config
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config.parse_flags_with_absl()
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FLAGS = config.FLAGS
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def get_exception(etype, f):
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try:
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f()
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except etype as e:
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return e
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assert False
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def check_filtered_stack_trace(test, etype, f, frame_patterns=[],
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filter_mode="remove_frames"):
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with jax._src.config.traceback_filtering(filter_mode):
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test.assertRaises(etype, f)
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e = get_exception(etype, f)
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c = e.__cause__
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if filter_mode == "remove_frames":
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test.assertIsInstance(c, traceback_util.UnfilteredStackTrace)
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else:
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test.assertFalse(isinstance(c, traceback_util.UnfilteredStackTrace))
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if frame_patterns:
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frames = []
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for frame, lineno in traceback.walk_tb(e.__traceback__):
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if filter_mode == "tracebackhide":
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if "__tracebackhide__" in frame.f_locals.keys():
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continue
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frames.append((frame, lineno))
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c_tb = traceback.format_list(traceback.StackSummary.extract(frames))
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for (fname_pat, line_pat), frame_fmt in zip(
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reversed(frame_patterns), reversed(c_tb)):
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file = re.escape(__file__)
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fname_pat = re.escape(fname_pat)
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line_pat = re.escape(line_pat)
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full_pat = (
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f' File "{file}", line ' r'[0-9]+'
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f', in {fname_pat}' r'\n\s*' f'{line_pat}')
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test.assertRegex(frame_fmt, full_pat)
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def skip_if_unsupported_filter_mode(filter_mode):
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if (filter_mode == "remove_frames" and
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not traceback_util.filtered_tracebacks_supported()):
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raise unittest.SkipTest('Filtered tracebacks not supported')
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elif filter_mode == "tracebackhide" and sys.version_info[:2] < (3, 7):
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raise unittest.SkipTest('Tracebackhide requires Python 3.7 or newer')
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@parameterized.named_parameters(
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{"testcase_name": f"_{f}", "filter_mode": f}
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for f in ("tracebackhide", "remove_frames"))
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class FilteredTracebackTest(jtu.JaxTestCase):
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def test_nested_jit(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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@jit
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def innermost(x):
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assert False
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@jit
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def inbetween(x):
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return 1 + innermost(x)
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@jit
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def outermost(x):
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return 2 + inbetween(x)
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f = lambda: outermost(jnp.array([1, 2]))
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check_filtered_stack_trace(self, AssertionError, f, [
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('<lambda>', 'f = lambda: outermost'),
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('outermost', 'return 2 + inbetween(x)'),
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('inbetween', 'return 1 + innermost(x)'),
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('innermost', 'assert False')],
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filter_mode=filter_mode)
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def test_nested_jit_and_vmap(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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@jit
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def innermost(x):
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assert False
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@jit
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def inbetween(x):
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return 1 + vmap(innermost)(x)
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@jit
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def outermost(x):
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return 2 + inbetween(x)
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f = lambda: outermost(jnp.array([1, 2]))
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check_filtered_stack_trace(self, AssertionError, f, [
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('<lambda>', 'f = lambda: outermost'),
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('outermost', 'return 2 + inbetween(x)'),
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('inbetween', 'return 1 + vmap(innermost)(x)'),
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('innermost', 'assert False')],
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filter_mode=filter_mode)
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def test_nested_jit_and_grad(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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@jit
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def innermost(x):
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assert False
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@jit
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def inbetween(x):
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return 1 + grad(innermost)(x)
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@jit
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def outermost(x):
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return 2 + inbetween(x)
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f = lambda: outermost(jnp.array([1, 2]))
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check_filtered_stack_trace(self, TypeError, f, [
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('<lambda>', 'f = lambda: outermost'),
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('outermost', 'return 2 + inbetween(x)'),
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('inbetween', 'return 1 + grad(innermost)(x)'),
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], filter_mode=filter_mode)
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def test_lax_cond(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(_):
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assert False
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return ()
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def f():
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return lax.cond(True, err, lambda _: (), ())
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check_filtered_stack_trace(self, AssertionError, f, [
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('f', 'return lax.cond(True, err, lambda _: (), ())'),
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('err', 'assert False')],
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filter_mode=filter_mode)
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def test_lax_switch(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(_):
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assert False
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return ()
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def f():
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branches = [lambda _: (), err, lambda _: ()]
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return lax.switch(1, branches, ())
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check_filtered_stack_trace(self, AssertionError, f, [
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('f', 'return lax.switch(1, branches, ())'),
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('err', 'assert False')], filter_mode=filter_mode)
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def test_lax_scan(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(*_):
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assert False
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return ()
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def f():
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return lax.scan(err, (), (), 3)
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check_filtered_stack_trace(self, AssertionError, f, [
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('f', 'return lax.scan(err, (), (), 3)'),
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('err', 'assert False')], filter_mode=filter_mode)
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def test_lax_fori_loop(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(*_):
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assert False
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return ()
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def f():
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return lax.fori_loop(0, 3, err, ())
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check_filtered_stack_trace(self, AssertionError, f, [
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('f', 'return lax.fori_loop(0, 3, err, ())'),
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('err', 'assert False')], filter_mode=filter_mode)
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def test_lax_while_loop(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(*_):
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assert False
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return ()
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def f():
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pred = lambda _: False
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return lax.while_loop(pred, err, ())
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check_filtered_stack_trace(self, AssertionError, f, [
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('f', 'return lax.while_loop(pred, err, ())'),
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('err', 'assert False')], filter_mode=filter_mode)
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def test_lax_map(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(_):
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assert False
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return ()
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def f():
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xs = jnp.ones(3)
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return lax.map(err, xs)
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check_filtered_stack_trace(self, AssertionError, f, [
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('f', 'return lax.map(err, xs)'),
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('err', 'assert False')], filter_mode=filter_mode)
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def test_lax_custom_root(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(*_):
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assert False
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return ()
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def g(x): return (x - 1.) ** 2.
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def solve(*_): return 1.
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def f1():
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return lax.custom_root(g, 0., err, solve)
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def f2():
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return lax.custom_root(g, 0., solve, err)
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def f3():
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return lax.custom_root(err, 0., solve, solve)
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check_filtered_stack_trace(self, AssertionError, f1, [
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('f1', 'return lax.custom_root(g, 0., err, solve)'),
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('err', 'assert False')], filter_mode=filter_mode)
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check_filtered_stack_trace(self, AssertionError, f2, [
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('f2', 'return lax.custom_root(g, 0., solve, err)'),
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('err', 'assert False')], filter_mode=filter_mode)
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check_filtered_stack_trace(self, AssertionError, f3, [
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('f3', 'return lax.custom_root(err, 0., solve, solve)'),
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('err', 'assert False')], filter_mode=filter_mode)
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def test_lax_custom_linear_solve(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(*_):
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assert False
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return ()
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matvec = lambda v: v
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solve = lambda mv, b: 1.
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b = 1.
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def f1():
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return lax.custom_linear_solve(err, b, solve)
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def f2():
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return lax.custom_linear_solve(matvec, b, err)
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check_filtered_stack_trace(self, AssertionError, f1, [
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('f1', 'return lax.custom_linear_solve(err, b, solve)'),
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('err', 'assert False')], filter_mode=filter_mode)
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check_filtered_stack_trace(self, AssertionError, f2, [
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('f2', 'return lax.custom_linear_solve(matvec, b, err)'),
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('err', 'assert False')], filter_mode=filter_mode)
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def test_lax_associative_scan(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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def err(*_):
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assert False
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return ()
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def f():
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xs = jnp.arange(4.)
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return lax.associative_scan(err, xs)
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check_filtered_stack_trace(self, AssertionError, f, [
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('f', 'return lax.associative_scan(err, xs)'),
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('err', 'assert False')], filter_mode=filter_mode)
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def test_cause_chain(self, filter_mode):
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skip_if_unsupported_filter_mode(filter_mode)
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@jit
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def inner(x):
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raise ValueError('inner')
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@jit
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def outer(x):
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try:
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inner(x)
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except ValueError as e:
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raise TypeError('outer') from e
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f = lambda: outer(1.)
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check_filtered_stack_trace(self, TypeError, f, [
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('<lambda>', 'f = lambda: outer'),
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('outer', 'raise TypeError')], filter_mode=filter_mode)
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e = get_exception(TypeError, f)
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self.assertIsInstance(e.__cause__, traceback_util.UnfilteredStackTrace)
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self.assertIsInstance(e.__cause__.__cause__, ValueError)
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class UserContextTracebackTest(jtu.JaxTestCase):
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def test_grad_norm(self):
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e = None
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try:
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with jax.debug_nans(True):
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jax.grad(jnp.linalg.norm)(jnp.zeros((3, 3), jnp.float32))
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except FloatingPointError as exc:
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e = exc
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self.assertIsNot(e, None)
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self.assertIn("invalid value", str(e))
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self.assertIsInstance(
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e.__cause__.__cause__,
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source_info_util.JaxStackTraceBeforeTransformation)
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class CustomErrorsTest(jtu.JaxTestCase):
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@parameterized.named_parameters(jtu.cases_from_list(
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{"testcase_name": "_{}".format(errorclass), "errorclass": errorclass}
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for errorclass in dir(jax.errors)
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if errorclass.endswith('Error') and errorclass not in ['JaxIndexError', 'JAXTypeError']))
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def testErrorsURL(self, errorclass):
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class FakeTracer(core.Tracer):
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aval = None
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ErrorClass = getattr(jax.errors, errorclass)
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err = ErrorClass(FakeTracer(None))
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self.assertIn(f'https://jax.readthedocs.io/en/latest/errors.html#jax.errors.{errorclass}', str(err))
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if __name__ == '__main__':
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absltest.main(testLoader=jtu.JaxTestLoader())
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