[py][BiDi] use constant for LogLevel (#15677)

Co-authored-by: Corey Goldberg <[email protected]>

Author: Delta456

py/selenium/webdriver/common/bidi/log.py

@@ -68,3 +68,12 @@ def from_json(cls, json):
             stacktrace=json["stackTrace"],
             type_=json["type"],
         )
+
+
+class LogLevel:
+    """Represents log level."""
+
+    DEBUG = "debug"
+    INFO = "info"
+    WARN = "warn"
+    ERROR = "error"

py/test/selenium/webdriver/common/bidi_script_tests.py

@@ -15,6 +15,7 @@
 # specific language governing permissions and limitations
 # under the License.
 
+from selenium.webdriver.common.bidi.log import LogLevel
 from selenium.webdriver.common.by import By
 from selenium.webdriver.support.ui import WebDriverWait
 
@@ -31,7 +32,7 @@ def test_logs_console_messages(driver, pages):
     WebDriverWait(driver, 5).until(lambda _: log_entries)
 
     log_entry = log_entries[0]
-    assert log_entry.level == "info"
+    assert log_entry.level == LogLevel.INFO
     assert log_entry.method == "log"
     assert log_entry.text == "Hello, world!"
     assert log_entry.type_ == "console"
@@ -55,7 +56,7 @@ def log_error(entry):
     assert len(log_entries) == 1
 
     log_entry = log_entries[0]
-    assert log_entry.level == "error"
+    assert log_entry.level == LogLevel.ERROR
     assert log_entry.method == "error"
     assert log_entry.text == "I am console error"
     assert log_entry.type_ == "console"
@@ -105,7 +106,7 @@ def test_javascript_error_messages(driver, pages):
 
     log_entry = log_entries[0]
     assert log_entry.text == "Error: Not working"
-    assert log_entry.level == "error"
+    assert log_entry.level == LogLevel.ERROR
     assert log_entry.type_ == "javascript"