/ 
Test-Run-0.0109
River stage two • 9 direct dependents • 12 total dependents
/ Test::Run::Straps

NAME

Test::Run::Straps - detailed analysis of test results

SYNOPSIS

use Test::Run::Straps;

my $strap = Test::Run::Straps->new;

# Various ways to interpret a test
my $results = $strap->analyze($name, \@test_output);
my $results = $strap->analyze_fh($name, $test_filehandle);
my $results = $strap->analyze_file($test_file);

# UNIMPLEMENTED
my %total = $strap->total_results;

# Altering the behavior of the strap  UNIMPLEMENTED
my $verbose_output = $strap->dump_verbose();
$strap->dump_verbose_fh($output_filehandle);

DESCRIPTION

THIS IS ALPHA SOFTWARE in that the interface is subject to change in incompatible ways. It is otherwise stable.

Test::Run is limited to printing out its results. This makes analysis of the test results difficult for anything but a human. To make it easier for programs to work with test results, we provide Test::Run::Straps. Instead of printing the results, straps provide them as raw data. You can also configure how the tests are to be run.

The interface is currently incomplete. Please contact the author if you'd like a feature added or something change or just have comments.

CONSTRUCTION

new()

my $strap = Test::Run::Straps->new;

Initialize a new strap.

ANALYSIS

$strap->analyze( $name, \@output_lines )

my $results = $strap->analyze($name, \@test_output);

Analyzes the output of a single test, assigning it the given $name for use in the total report. Returns the $results of the test (an object). See Results.

@test_output should be the raw output from the test, including newlines.

$self->_handle_event()

Handles the current event according to the list of types in the cascade. It checks each type and if matches calls the appropriate _handle_${type}_event callback. Returns the type of the event that matched.

$strap->analyze_fh( $name, $test_filehandle )

my $results = $strap->analyze_fh($name, $test_filehandle);

Like analyze, but it reads from the given filehandle.

$strap->analyze_file( $test_file )

my %results = $strap->analyze_file($test_file);

Like analyze, but it runs the given $test_file and parses its results. It will also use that name for the total report.

$strap->_command_line( $file )

Returns the full command line that will be run to test $file.

$strap->_command()

Returns the command that runs the test. Combine this with _switches() to build a command line.

Typically this is $^X, but you can set $self-Test_Interpreter()> to use a different Perl than what you're running the harness under. This might be to run a threaded Perl, for example.

You can also overload this method if you've built your own strap subclass, such as a PHP interpreter for a PHP-based strap.

$strap->_switches( $file )

Formats and returns the switches necessary to run the test.

$strap->_cleaned_switches( @switches_from_user )

Returns only defined, non-blank, trimmed switches from the parms passed.

$strap->_INC2PERL5LIB

local $ENV{PERL5LIB} = $self->_INC2PERL5LIB;

Takes the current value of @INC and turns it into something suitable for putting onto PERL5LIB.

$strap->_filtered_INC()

my @filtered_inc = $self->_filtered_INC;

Shortens @INC by removing redundant and unnecessary entries. Necessary for OSes with limited command line lengths, like VMS.

$strap->_restore_PERL5LIB()

$self->_restore_PERL5LIB;

This restores the original value of the PERL5LIB environment variable. Necessary on VMS, otherwise a no-op.

Parsing

Methods for identifying what sort of line you're looking at.

_reset_file_state

$strap->_reset_file_state;

Resets things like $strap->{max}, etc. so it's ready to parse the next file.

Results

The %results returned from analyze() contain the following information:

passing           true if the whole test is considered a pass 
                  (or skipped), false if its a failure

exit              the exit code of the test run, if from a file
wait              the wait code of the test run, if from a file

max               total tests which should have been run
seen              total tests actually seen
skip_all          if the whole test was skipped, this will 
                    contain the reason.

ok                number of tests which passed 
                    (including todo and skips)

todo              number of todo tests seen
bonus             number of todo tests which 
                    unexpectedly passed

skip              number of tests skipped

So a successful test should have max == seen == ok.

There is one final item, the details.

details           an array ref reporting the result of 
                  each test looks like this:

  $results{details}[$test_num - 1] = 
          { ok          => is the test considered ok?
            actual_ok   => did it literally say 'ok'?
            name        => name of the test (if any)
            diagnostics => test diagnostics (if any)
            type        => 'skip' or 'todo' (if any)
            reason      => reason for the above (if any)
          };

Element 0 of the details is test #1. I tried it with element 1 being #1 and 0 being empty, this is less awkward.

EXAMPLES

See examples/mini_harness.plx for an example of use.

AUTHOR

Michael G Schwern <schwern@pobox.com>, later maintained by Andy Lester <andy@petdance.com>.

Converted to Test::Run::Straps by Shlomi Fish <shlomif@iglu.org.il>.

SEE ALSO

Test::Run