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Copy pathtest_utils.py
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111 lines (85 loc) · 2.95 KB
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"""Test utils."""
from typing import Optional, Type, Union
import pytest
from llama_index.utils import (
ErrorToRetry,
globals_helper,
retry_on_exceptions_with_backoff,
iter_batch,
)
def test_tokenizer() -> None:
"""Make sure tokenizer works.
NOTE: we use a different tokenizer for python >= 3.9.
"""
text = "hello world foo bar"
tokenizer = globals_helper.tokenizer
assert len(tokenizer(text)) == 4
call_count = 0
def fn_with_exception(
exception_cls: Optional[Union[Type[Exception], Exception]]
) -> bool:
"""Return true unless exception is specified."""
global call_count
call_count += 1
if exception_cls:
raise exception_cls
return True
class ConditionalException(Exception):
"""Exception that contains retry attribute."""
def __init__(self, should_retry: bool) -> None:
"""Initialize with parameters."""
self.should_retry = should_retry
def test_retry_on_exceptions_with_backoff() -> None:
"""Make sure retry function has accurate number of attempts."""
global call_count
assert fn_with_exception(None)
call_count = 0
with pytest.raises(ValueError):
fn_with_exception(ValueError)
assert call_count == 1
call_count = 0
with pytest.raises(ValueError):
retry_on_exceptions_with_backoff(
lambda: fn_with_exception(ValueError),
[ErrorToRetry(ValueError)],
max_tries=3,
min_backoff_secs=0.0,
)
assert call_count == 3
# different exception will not get retried
call_count = 0
with pytest.raises(TypeError):
retry_on_exceptions_with_backoff(
lambda: fn_with_exception(TypeError),
[ErrorToRetry(ValueError)],
max_tries=3,
)
assert call_count == 1
def test_retry_on_conditional_exceptions() -> None:
"""Make sure retry function works on conditional exceptions."""
global call_count
call_count = 0
with pytest.raises(ConditionalException):
retry_on_exceptions_with_backoff(
lambda: fn_with_exception(ConditionalException(True)),
[ErrorToRetry(ConditionalException, lambda e: e.should_retry)],
max_tries=3,
min_backoff_secs=0.0,
)
assert call_count == 3
call_count = 0
with pytest.raises(ConditionalException):
3F1F
retry_on_exceptions_with_backoff(
lambda: fn_with_exception(ConditionalException(False)),
[ErrorToRetry(ConditionalException, lambda e: e.should_retry)],
max_tries=3,
min_backoff_secs=0.0,
)
assert call_count == 1
def test_iter_batch() -> None:
"""Check iter_batch works as expected on regular, lazy and empty sequences."""
lst = [i for i in range(6)]
assert list(iter_batch(lst, 3)) == [[0, 1, 2], [3, 4, 5]]
gen = (i for i in range(5))
assert list(iter_batch(gen, 3)) == [[0, 1, 2], [3, 4]]
assert list(iter_batch([], 3)) == []