140 lines
4.2 KiB
Python
140 lines
4.2 KiB
Python
import logging
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import pytest
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logger = logging.getLogger(__name__)
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sublogger = logging.getLogger(__name__ + ".baz")
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def test_fixture_help(testdir):
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result = testdir.runpytest("--fixtures")
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result.stdout.fnmatch_lines(["*caplog*"])
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def test_change_level(caplog):
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caplog.set_level(logging.INFO)
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logger.debug("handler DEBUG level")
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logger.info("handler INFO level")
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caplog.set_level(logging.CRITICAL, logger=sublogger.name)
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sublogger.warning("logger WARNING level")
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sublogger.critical("logger CRITICAL level")
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assert "DEBUG" not in caplog.text
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assert "INFO" in caplog.text
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assert "WARNING" not in caplog.text
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assert "CRITICAL" in caplog.text
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def test_change_level_undo(testdir):
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"""Ensure that 'set_level' is undone after the end of the test"""
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testdir.makepyfile(
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"""
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import logging
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def test1(caplog):
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caplog.set_level(logging.INFO)
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# using + operator here so fnmatch_lines doesn't match the code in the traceback
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logging.info('log from ' + 'test1')
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assert 0
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def test2(caplog):
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# using + operator here so fnmatch_lines doesn't match the code in the traceback
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logging.info('log from ' + 'test2')
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assert 0
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"""
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)
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result = testdir.runpytest()
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result.stdout.fnmatch_lines(["*log from test1*", "*2 failed in *"])
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assert "log from test2" not in result.stdout.str()
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def test_with_statement(caplog):
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with caplog.at_level(logging.INFO):
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logger.debug("handler DEBUG level")
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logger.info("handler INFO level")
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with caplog.at_level(logging.CRITICAL, logger=sublogger.name):
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sublogger.warning("logger WARNING level")
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sublogger.critical("logger CRITICAL level")
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assert "DEBUG" not in caplog.text
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assert "INFO" in caplog.text
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assert "WARNING" not in caplog.text
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assert "CRITICAL" in caplog.text
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def test_log_access(caplog):
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caplog.set_level(logging.INFO)
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logger.info("boo %s", "arg")
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assert caplog.records[0].levelname == "INFO"
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assert caplog.records[0].msg == "boo %s"
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assert "boo arg" in caplog.text
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def test_messages(caplog):
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caplog.set_level(logging.INFO)
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logger.info("boo %s", "arg")
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logger.info("bar %s\nbaz %s", "arg1", "arg2")
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assert "boo arg" == caplog.messages[0]
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assert "bar arg1\nbaz arg2" == caplog.messages[1]
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assert caplog.text.count("\n") > len(caplog.messages)
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assert len(caplog.text.splitlines()) > len(caplog.messages)
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try:
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raise Exception("test")
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except Exception:
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logger.exception("oops")
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assert "oops" in caplog.text
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assert "oops" in caplog.messages[-1]
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# Tracebacks are stored in the record and not added until the formatter or handler.
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assert "Exception" in caplog.text
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assert "Exception" not in caplog.messages[-1]
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def test_record_tuples(caplog):
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caplog.set_level(logging.INFO)
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logger.info("boo %s", "arg")
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assert caplog.record_tuples == [(__name__, logging.INFO, "boo arg")]
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def test_unicode(caplog):
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caplog.set_level(logging.INFO)
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logger.info("bū")
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assert caplog.records[0].levelname == "INFO"
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assert caplog.records[0].msg == "bū"
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assert "bū" in caplog.text
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def test_clear(caplog):
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caplog.set_level(logging.INFO)
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logger.info("bū")
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assert len(caplog.records)
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assert caplog.text
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caplog.clear()
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assert not len(caplog.records)
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assert not caplog.text
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@pytest.fixture
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def logging_during_setup_and_teardown(caplog):
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caplog.set_level("INFO")
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logger.info("a_setup_log")
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yield
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logger.info("a_teardown_log")
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assert [x.message for x in caplog.get_records("teardown")] == ["a_teardown_log"]
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def test_caplog_captures_for_all_stages(caplog, logging_during_setup_and_teardown):
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assert not caplog.records
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assert not caplog.get_records("call")
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logger.info("a_call_log")
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assert [x.message for x in caplog.get_records("call")] == ["a_call_log"]
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assert [x.message for x in caplog.get_records("setup")] == ["a_setup_log"]
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# This reaches into private API, don't use this type of thing in real tests!
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assert set(caplog._item.catch_log_handlers.keys()) == {"setup", "call"}
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