instructions.md

In this exercise you'll be mapping logging codes to a label.

These are the different log codes:

• 0 (trace)
• 1 (debug)
• 4 (info)
• 5 (warning)
• 6 (error)
• 7 (fatal)

You have three tasks:

1. Return the logging code label

Implement the LogLevel.to_label/1 function to return the label of a log line from an integer code:

LogLevel.to_label(1)
# => :debug

2. Support unknown logging codes

Unfortunately, some log lines occasionally have an unknown log code. To gracefully handle these log lines, add an unknown label to the LogLevel.to_label/1 function.

LogLevel.to_label(10)
# => :unknown

3. Send an alert

An engineer wants to be alerted when some events occur in the log. They would like to be notified if an :error, :fatal, or :unknown event occurs.

Implement the LogLevel.send_alert?/1 function to determine if an alert should be sent based on the log line's label.

LogLevel.send_alert?(1)
# => false