Buncha logging stuff showing up in unit tests

ruby-talk
1

I'm using Ruby's standard Logger to log a bunch of debug, info, and errors.

But when I run the unit tests for the classes that use the Logger, all
the logs are showing up in the test output.

Any good solutions for solving this?

2

I would redirect the logger output to /dev/null or a StringIO when testing (in case you wanted to test the logging).

···

On Nov 23, 2005, at 11:32 AM, Joe Van Dyk wrote:

I'm using Ruby's standard Logger to log a bunch of debug, info, and errors.

But when I run the unit tests for the classes that use the Logger, all
the logs are showing up in the test output.

Any good solutions for solving this?

--
Eric Hodel - drbrain@segment7.net - http://segment7.net
FEC2 57F1 D465 EB15 5D6E 7C11 332A 551C 796C 9F04

This implementation is HODEL-HASH-9600 compliant

3

How do the classes know whether or not they are being tested?

Eventually, I will be using a custom Logging method that sends all the
logs to some network log daemon thingy so that all the logs are kept
on one machine.

···

On 11/23/05, Eric Hodel <drbrain@segment7.net> wrote:

On Nov 23, 2005, at 11:32 AM, Joe Van Dyk wrote:

> I'm using Ruby's standard Logger to log a bunch of debug, info, and
> errors.
>
> But when I run the unit tests for the classes that use the Logger, all
> the logs are showing up in the test output.
>
> Any good solutions for solving this?

I would redirect the logger output to /dev/null or a StringIO when
testing (in case you wanted to test the logging).

4

I'm using Ruby's standard Logger to log a bunch of debug, info, and
errors.

But when I run the unit tests for the classes that use the Logger, all
the logs are showing up in the test output.

Any good solutions for solving this?

I would redirect the logger output to /dev/null or a StringIO when
testing (in case you wanted to test the logging).

How do the classes know whether or not they are being tested?

I set $TESTING = true when testing things. The most frequent place I use it is:

private unless $TESTING

Eventually, I will be using a custom Logging method that sends all the
logs to some network log daemon thingy so that all the logs are kept
on one machine.

Check out SyslogLogger in the rails_analyzer_tools gem:

http://rails-analyzer.rubyforge.org/tools/classes/SyslogLogger.html

It duck types to the base Logger class.

···

On Nov 23, 2005, at 11:40 AM, Joe Van Dyk wrote:

On 11/23/05, Eric Hodel <drbrain@segment7.net> wrote:

On Nov 23, 2005, at 11:32 AM, Joe Van Dyk wrote:

--
Eric Hodel - drbrain@segment7.net - http://segment7.net
FEC2 57F1 D465 EB15 5D6E 7C11 332A 551C 796C 9F04

This implementation is HODEL-HASH-9600 compliant

5

So, something like

require 'logger'
class ThisClassGetsTested
  def initialize
    if $TESTING
      log_output = "/dev/null"
    else
      log_output = "some/file" # or $stdout or whatever
    end
  end
end

···

On 11/23/05, Eric Hodel <drbrain@segment7.net> wrote:

On Nov 23, 2005, at 11:40 AM, Joe Van Dyk wrote:

> On 11/23/05, Eric Hodel <drbrain@segment7.net> wrote:
>> On Nov 23, 2005, at 11:32 AM, Joe Van Dyk wrote:
>>
>>> I'm using Ruby's standard Logger to log a bunch of debug, info, and
>>> errors.
>>>
>>> But when I run the unit tests for the classes that use the
>>> Logger, all
>>> the logs are showing up in the test output.
>>>
>>> Any good solutions for solving this?
>>
>> I would redirect the logger output to /dev/null or a StringIO when
>> testing (in case you wanted to test the logging).
>
> How do the classes know whether or not they are being tested?

I set $TESTING = true when testing things. The most frequent place I
use it is:

private unless $TESTING

====

require 'test/unit'
$TESTING = true
class TestTheClass < Test::Unit::TestCase
  ...
end

> Eventually, I will be using a custom Logging method that sends all the
> logs to some network log daemon thingy so that all the logs are kept
> on one machine.

Check out SyslogLogger in the rails_analyzer_tools gem:

http://rails-analyzer.rubyforge.org/tools/classes/SyslogLogger.html

It duck types to the base Logger class.

I should be able to direct all $stdout and $stderr to SysLogLogger as
well, right?

6

I'm using Ruby's standard Logger to log a bunch of debug, info, and
errors.

But when I run the unit tests for the classes that use the
Logger, all
the logs are showing up in the test output.

Any good solutions for solving this?

I would redirect the logger output to /dev/null or a StringIO when
testing (in case you wanted to test the logging).

How do the classes know whether or not they are being tested?

I set $TESTING = true when testing things. The most frequent place I
use it is:

private unless $TESTING

So, something like

require 'logger'
class ThisClassGetsTested
  def initialize
    if $TESTING
      log_output = "/dev/null"
    else
      log_output = "some/file" # or $stdout or whatever
    end
  end
end

====

require 'test/unit'
$TESTING = true
class TestTheClass < Test::Unit::TestCase
  ...
end

Exactly.

Eventually, I will be using a custom Logging method that sends all the
logs to some network log daemon thingy so that all the logs are kept
on one machine.

Check out SyslogLogger in the rails_analyzer_tools gem:

http://rails-analyzer.rubyforge.org/tools/classes/SyslogLogger.html

It duck types to the base Logger class.

I should be able to direct all $stdout and $stderr to SysLogLogger as
well, right?

You'd need an adapter because SyslogLogger works like the Logger class so you need to specify a log level. I wouldn't recommend it, either.

···

On Nov 23, 2005, at 12:10 PM, Joe Van Dyk wrote:

On 11/23/05, Eric Hodel <drbrain@segment7.net> wrote:

On Nov 23, 2005, at 11:40 AM, Joe Van Dyk wrote:

On 11/23/05, Eric Hodel <drbrain@segment7.net> wrote:

On Nov 23, 2005, at 11:32 AM, Joe Van Dyk wrote:

--
Eric Hodel - drbrain@segment7.net - http://segment7.net
FEC2 57F1 D465 EB15 5D6E 7C11 332A 551C 796C 9F04

This implementation is HODEL-HASH-9600 compliant