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"""Unit tests for the base module."""
import logging
import importlib
# from os import environ
import pytest
from tiered_debug import set_level, set_stacklevel, lv1, lv2, lv3, lv4, lv5
import tiered_debug._base as base
ENVVAR = "TIERED_DEBUG_LEVEL"
# Fixture to reset global state before each test
@pytest.fixture(autouse=True)
def reset_state():
"""
Reset the global _level and _stacklevel to their default values before each test.
"""
base._level = 1
base._stacklevel = 2
# Tests for set_level
def test_set_level_valid():
"""Test that set_level sets _level correctly for valid inputs."""
set_level(1)
assert base._level == 1
set_level(3)
assert base._level == 3
set_level(5)
assert base._level == 5
def test_set_level_invalid():
"""Test that set_level raises ValueError for invalid inputs."""
with pytest.raises(ValueError, match="Debug level must be between 1 and 5"):
set_level(0)
with pytest.raises(ValueError, match="Debug level must be between 1 and 5"):
set_level(6)
# Tests for set_stacklevel
def test_set_stacklevel_valid():
"""Test that set_stacklevel sets _stacklevel correctly for valid inputs."""
set_stacklevel(1)
assert base._stacklevel == 1
set_stacklevel(2)
assert base._stacklevel == 2
set_stacklevel(3)
assert base._stacklevel == 3
def test_set_stacklevel_invalid():
"""Test that set_stacklevel raises ValueError for invalid inputs."""
with pytest.raises(ValueError, match="stacklevel must be between 1 and 3"):
set_stacklevel(0)
with pytest.raises(ValueError, match="stacklevel must be between 1 and 3"):
set_stacklevel(4)
# Tests for initialization based on environment variable
def test_initial_level_from_env(monkeypatch):
"""Test that _level is set from a valid environment variable."""
monkeypatch.setenv(ENVVAR, "4")
importlib.reload(base)
assert base._level == 4
def test_initial_level_invalid_env(monkeypatch):
"""Test that _level defaults to 1 with an invalid environment variable."""
monkeypatch.setenv(ENVVAR, "invalid")
importlib.reload(base)
assert base._level == 1
def test_initial_level_out_of_range_env(monkeypatch):
"""Test that _level defaults to 1 when environment variable is out of range."""
monkeypatch.setenv(ENVVAR, "6")
importlib.reload(base)
assert base._level == 1
monkeypatch.setenv(ENVVAR, "0")
importlib.reload(base)
assert base._level == 1
def test_initial_level_not_set(monkeypatch):
"""Test that _level defaults to 1 when environment variable is not set."""
monkeypatch.delenv(ENVVAR, raising=False)
importlib.reload(base)
assert base._level == 1
# Tests for logging functions using parametrize
@pytest.mark.parametrize(
"level, should_log",
[
(1, True),
(2, True),
(3, True),
(4, True),
(5, True),
],
)
def test_lv1_logs(caplog, level, should_log):
"""Test that lv1 logs messages when _level >= 1."""
set_level(level)
with caplog.at_level(logging.DEBUG):
lv1("Test message")
assert ("DEBUG1 Test message" in caplog.text) == should_log
@pytest.mark.parametrize(
"level, should_log",
[
(1, False),
(2, True),
(3, True),
(4, True),
(5, True),
],
)
def test_lv2_logs(caplog, level, should_log):
"""Test that lv2 logs messages when _level >= 2."""
set_level(level)
with caplog.at_level(logging.DEBUG):
lv2("Test message")
assert ("DEBUG2 Test message" in caplog.text) == should_log
@pytest.mark.parametrize(
"level, should_log",
[
(1, False),
(2, False),
(3, True),
(4, True),
(5, True),
],
)
def test_lv3_logs(caplog, level, should_log):
"""Test that lv3 logs messages when _level >= 3."""
set_level(level)
with caplog.at_level(logging.DEBUG):
lv3("Test message")
assert ("DEBUG3 Test message" in caplog.text) == should_log
@pytest.mark.parametrize(
"level, should_log",
[
(1, False),
(2, False),
(3, False),
(4, True),
(5, True),
],
)
def test_lv4_logs(caplog, level, should_log):
"""Test that lv4 logs messages when _level >= 4."""
set_level(level)
with caplog.at_level(logging.DEBUG):
lv4("Test message")
assert ("DEBUG4 Test message" in caplog.text) == should_log
@pytest.mark.parametrize(
"level, should_log",
[
(1, False),
(2, False),
(3, False),
(4, False),
(5, True),
],
)
def test_lv5_logs(caplog, level, should_log):
"""Test that lv5 logs messages when _level >= 5."""
set_level(level)
with caplog.at_level(logging.DEBUG):
lv5("Test message")
assert ("DEBUG5 Test message" in caplog.text) == should_log
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