Answers for "logging error"

python logging example

# logging_example.py

import logging

# Create a custom logger
logger = logging.getLogger(__name__)

# Create handlers
c_handler = logging.StreamHandler()
f_handler = logging.FileHandler('file.log')
c_handler.setLevel(logging.WARNING)
f_handler.setLevel(logging.ERROR)

# Create formatters and add it to handlers
c_format = logging.Formatter('%(name)s - %(levelname)s - %(message)s')
f_format = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
c_handler.setFormatter(c_format)
f_handler.setFormatter(f_format)

# Add handlers to the logger
logger.addHandler(c_handler)
logger.addHandler(f_handler)

logger.warning('This is a warning')
logger.error('This is an error')

logging.logger

import logging

logging.basicConfig(level=logging.WARNING)
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
  
logger.debug("some debugging...")
logger.error("some error...")

What do you use for logging?

I use Log4J for logging. I always log important steps in the test execution. 
 That helps me to debug when there is a
failure.
● Log4J is not a replacement for HTML reports.
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j- core</artifactId>
<version>2.11.0</version>
</dependency>

Response Logging

Response Logging
If you want to print the response body regardless of the
status code you can do:

get("/x").then().log().body() ..
This will print the response body regardless if an error occurred.
If you're only interested in printing the response body if an error
occur then you can use:

get("/x").then().log().ifError(). .. 
You can also log all details in the response
including status line, headers and cookies:

get("/x").then().log().all(). .. 
as well as only status line, headers or cookies:

get("/x").then().log().statusLine(). .. // Only log the status line
get("/x").then().log().headers(). .. // Only log the response headers
get("/x").then().log().cookies(). .. // Only log the response cookies
You can also configure to log the response
only if the status code matches some value:

get("/x").then().log().ifStatusCodeIsEqualTo(302). .. // 
Only log if the status code is equal to 302

get("/x").then().log().ifStatusCodeMatches(matcher). .. //
Only log if the status code matches the supplied Hamcrest matcher