Added pytests for logging

tests/pytests/integration/_logging/test_logging.py

@@ -0,0 +1,106 @@
+import logging
+import os
+
+import pytest
+
+import salt._logging.impl as log_impl
+from tests.support.mock import MagicMock, patch
+
+pytestmark = [
+    pytest.mark.skip_on_windows(reason="Temporarily skipped on the newer golden images")
+]
+
+
+log = logging.getLogger(__name__)
+
+
+@pytest.fixture
+def configure_loader_modules():
+    return {log_impl: {}}
+
+
+def log_nameToLevel(name):
+    """
+    Return the numeric representation of textual logging level
+    """
+    # log level values
+    CRITICAL = 50
+    FATAL = CRITICAL
+    ERROR = 40
+    WARNING = 30
+    WARN = WARNING
+    INFO = 20
+    DEBUG = 10
+    NOTSET = 0
+
+    _nameToLevel = {
+        "CRITICAL": CRITICAL,
+        "FATAL": FATAL,
+        "ERROR": ERROR,
+        "WARN": WARNING,
+        "WARNING": WARNING,
+        "INFO": INFO,
+        "DEBUG": DEBUG,
+        "NOTSET": NOTSET,
+    }
+    return _nameToLevel.get(name, None)
+
+
+def test_lowest_log_level():
+    ret = log_impl.get_lowest_log_level()
+    assert ret is None
+
+    log_impl.set_lowest_log_level(log_nameToLevel("DEBUG"))
+    ret = log_impl.get_lowest_log_level()
+    assert ret is log_nameToLevel("DEBUG")
+
+    log_impl.set_lowest_log_level(log_nameToLevel("WARNING"))
+    ret = log_impl.get_lowest_log_level()
+    assert ret is log_nameToLevel("WARNING")
+
+    opts = {"log_level": "ERROR", "log_level_logfile": "INFO"}
+    log_impl.set_lowest_log_level_by_opts(opts)
+    ret = log_impl.get_lowest_log_level()
+    assert ret is log_nameToLevel("INFO")
+
+
+def test_get_logging_level_from_string(caplog):
+    ret = log_impl.get_logging_level_from_string(None)
+    assert ret is log_nameToLevel("WARNING")
+
+    ret = log_impl.get_logging_level_from_string(log_nameToLevel("DEBUG"))
+    assert ret is log_nameToLevel("DEBUG")
+
+    ret = log_impl.get_logging_level_from_string("CRITICAL")
+    assert ret is log_nameToLevel("CRITICAL")
+
+    caplog.clear()
+    with caplog.at_level(logging.WARNING):
+        msg = "Could not translate the logging level string 'BADLEVEL' into an actual logging level integer. Returning 'logging.ERROR'."
+        ret = log_impl.get_logging_level_from_string("BADLEVEL")
+        assert ret is log_nameToLevel("ERROR")
+        assert msg in caplog.text
+
+
+def test_logfile_handler(caplog):
+    caplog.clear()
+    with caplog.at_level(logging.WARNING):
+        ret = log_impl.is_logfile_handler_configured()
+        assert ret is False
+
+        msg = "log_path setting is set to `None`. Nothing else to do"
+        log_path = None
+        assert log_impl.setup_logfile_handler(log_path) is None
+        assert msg in caplog.text
+
+
+def test_in_mainprocess():
+    ret = log_impl.in_mainprocess()
+    assert ret is True
+
+    curr_pid = os.getpid()
+    with patch(
+        "os.getpid", MagicMock(side_effect=[AttributeError, curr_pid, curr_pid])
+    ):
+        ret = log_impl.in_mainprocess()
+        assert ret is True