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# Copyright (C) 2010 ERG Limited, All rights reserved

#

# Module name   : jats_utf_ant.pl

# Module type   : Makefile system

# Compiler(s)   : Perl

# Environment(s): jats

#

# Description   : Jats utility to read Ant test result output files and

#                 reformats them into standard XML for JATS to import

#                 into the Release Manager database.

#

# Usage         : perl jats_utf_ant.pl [-h] [-v] -o <folder> -t <target>

#

#......................................................................#

require 5.006_001;   # to remain compatible with installed per version

use diagnostics;

use strict;

use warnings;

use Pod::Usage;

use Getopt::Long;

use Time::HiRes;

use File::Spec;

use XML::Simple;

use Cwd;

use JatsError;

use JatsVersionUtils;

use JatsRmApi;

use JatsSystem;

my $VERSION = "1.0.0"; # Update this every time this file changes

#   Run main() with the command line arguments unless

#   we're being used by a 'require'

main(@ARGV) unless caller;

#------------------------------------------------------------------------------

# Function    : main

#

# Description : The main-line as a function

#               Making main a subroutine allows me to test all

#               the others without running main

#

#               Because this is MAIN the indentation rule is 

#               violated and all lines are unindented by one

#               indentation level

#

#               Processes any result files from Junit as run by ANT.

#

#               These result files are named 'Test-<name>.xml'.

#

#               Parse these files and extract the pass/fail information as

#               well as details for failed tests. This information is written,

#               as XML, to the output folder specified with the -o switch. The

#               files are named <Target>-<Time>.xml, where <Target> is

#               specified using the -t switch, and <Time> is the current unix

#               time to 5 decimal places with the decimal point removed. e.g.

#               Win32-141860573651218.xml

#

#               The output XML file looks like:

#

# <TestResults>

#   <!-- a passed test is a self closing TestResult -->

#   <TestResult DURATION="0.01" NAME="java.path::method" OUTCOME="PASS" />

#   <!-- a failed test has a closing tag and some content -->

#   <TestResult DURATION="0.01" NAME="java.path::method" OUTCOME="FAILURE">

#     some

#     text

#     denoting

#     a stack dump

#     or other

#     details

#   </TestResult>

#   <!-- an errored test has a closing tag and some content -->

#   <TestResult DURATION="0.01" NAME="java.path::method" OUTCOME="ERROR">

#     some

#     text

#     denoting

#     a stack dump

#     or other

#     details

#   </TestResult>

# </TestResults>

#

# Inputs      : ARGV (see above)

#

# Output      : The standard XML format file for JATS to read

#

# Returns     : 0 - there were some failed tests

#               1 - all tests passed

#

sub main {

#   Start of broken indentation convention

our ($opt_help, $opt_verbose, $opt_outFolder, $opt_target);

$opt_help = 0;

$opt_verbose = 0;

my $result = GetOptions (

    "help|h:+"          => \$opt_help,

    "verbose|v:+"       => \$opt_verbose,

    "out|o=s"           => \$opt_outFolder,

    "target|t=s"        => \$opt_target,

);

#

#   Process help and manual options

#

pod2usage(-verbose => 0, -message => "Version: $VERSION")  if ($opt_help == 1);

pod2usage(-verbose => 1)  if ($opt_help == 2);

pod2usage(-verbose => 2)  if ($opt_help > 2);

#

#   Configure the error reporting process now that we have the user options

#

ErrorConfig( 'name'    =>'UTF_ANT',

             'verbose' => $opt_verbose );

#   Set defaults and error checking

$opt_outFolder = '.' unless ($opt_outFolder);

Error ("Must specify a target platform (e.g. -t 'WIN32')") unless($opt_target);

Error ("Output Folder \'$opt_outFolder\' does not exist") unless (-d $opt_outFolder);

return doMain($opt_outFolder, $opt_target);

#   End of broken indentation convention

}

#------------------------------------------------------------------------------

# Function    : doMain

#

# Description : perform the actions required by this module as described above

#

# Inputs      : $outFolder - the folder wehre to place the output XML file.

#               $target - the target platform name.

#                         This is used in generating the output file name as

#                         described above.

#

# Output      : The result XML file.

#

# Returns     : 0 - some tests failed

#               1 - all tests passed

#

sub doMain {

    my ($outFolder, $target) = @_;

    my ($passed, @instance) = createBuildInstance($target);

    outputJatsXmlFile($outFolder, $target, @instance);

    return $passed;

}

#------------------------------------------------------------------------------

# Function    : outputJatsXmlFile

#

# Description : Write the result structure to the output XML file.

#

# Inputs      : $output_folder - where to put the output file.

#               $target - the target platforn, used to construct the output

#                         filename.

#               @instance - the results read from the Ant file.

#

# Output      : The result XML file.

#

# Returns     : The filename of the output file.

#

sub outputJatsXmlFile {

    my ($output_folder, $target, @instance) = @_;

    my %xml;

    #   Each element in @instance is put into a <TestResult> XML element

    @{$xml{TestResult}} = @instance;

    #   The 'MESSAGE' key for failed tests forms the content of the

    #   <TestResult> element. Other keys are converted to attributes.

    #   Assign <TestResults> as the root XMl node.

    my $xmlData = XMLout(\%xml, ContentKey => 'MESSAGE', RootName => 'TestResults');

    #   Construct the output filename from the microsecond time.

    my $time = Time::HiRes::time;

    $time =~ s/\.//;

    #   Append enough '0' to make 15 chars. This make uniform length numbers

    #   and allows filename sorting.

    $time .= "0"x(15-length($time));

    my $filename = "$output_folder/$target-$time.xml";

    Error("$filename already exists: $!\n") if -e $filename;

    #   Write the data to the XML file.

    open ( my $outFile, ">", $filename)

        || Error("Cannot open $filename for writing: $!\n");

    print $outFile $xmlData;

    return $filename;

}

#------------------------------------------------------------------------------

# Function    : createBuildInstance

#

# Description : Reads an Ant test results file and returns an array with an

#               entry per test. Each entry is a Hash as described below.

#

# Inputs      : $target - the build target platform. Cannot be undef

#

# Output      : None

#

# Returns     : A pair of values ($passed, $test_results)

#               $passed - 1 if there were no failed tests

#                         0 if there were failed tests

#               @test_results - A data structure consisting of an array of

#                               hashes

#                               Each entry in the hash holds:

#                   NAME - the class and method name of the test (or as

#                          much information as is necessary to uniquely

#                          identify the test)

#                   OUTCOME - one of 'UNKNOWN', 'PASS', 'FAIL', 'ERROR'.

#                             Being the test result.

#                   DURATION - the time (in seconds) that the test took to run

#                   TARGET_PLATFORM - The platform that was used to run the test

#                   MESSAGE - if the test did not pass, there is more

#                             information here. Most likely a stack dump.

#

sub createBuildInstance {

    my ($target) = @_;

    Error("Must provide a target") unless defined($target);

    my $filename = findAntResultsFile();

    my ($passed, @test_results) = parseTestRun($filename, $target);

    return ($passed, @test_results);

}

#------------------------------------------------------------------------------

# Function    : findAntResultsFile

#

# Description : Find a file matching the pattern '^Test-.*\.xml' below the

#               current folder.

#

# Inputs      : none

#

# Output      : none

#

# Returns     : The complete path and filename of the first matching file.

#

sub findAntResultsFile {

    my $testResultsFile;

    use File::Find;

    find(sub {

            if (/^Test-.*\.xml/) {

                #   Get absolute path

                $testResultsFile = File::Spec->rel2abs("$_");

                #   Exit once we've found one file (speed optimisation)

                goto JATS_UTF_ANT_FOUND;

            }

        }, '.');

JATS_UTF_ANT_FOUND:  # goto here from inside Find once the file is found

    return $testResultsFile;

}

#------------------------------------------------------------------------------

# Function    : parseTestRun

#

# Description :

#

# Inputs      : $filename - the junit results.xml file to parse

#               $target - the build target platform to assign to each test

#

# Output      : none

#

# Returns     : a pair of values ($passed, @test_results)

#               $passed - 1 if all tests passed

#                         0 if some tests failed

#               @test_results - A list of TestResult's (see above)

#          

sub parseTestRun {

    my ($filename, $target) = @_;

    my ($passed, @test_results);

    my ($project_name, $package_name, $package_version, $timestamp);

    $passed = 1;

    open( my $infile, "<$filename" ) || Error ( "Cannot read from $filename", $! );

    #   Read the file, line by line

    while ( <$infile> ) {

        #   Extract one test case

        #

        #   This may progress the file pointer if <testcase>...</testcase>

        #   is multiline

        my @test_case = getTestCase($_, $infile) if /\<testcase/;

        #   Parse the test case creating a hash

        my %test_run = parseTestCase($target, @test_case) if (@test_case);

        #   Save the test result in the array

        push(@test_results, {%test_run}) if (%test_run);

        #   Record that there was at least one failed test

        $passed = 0 if (%test_run && ($test_run{OUTCOME} ne 'PASS'));

    }

    return ($passed, @test_results);

}

#------------------------------------------------------------------------------

# Function    : getTestCase

#

# Description : Reads from the file, and advances the file pointer, until the

#               closing '</testcase>' tag is read.

#

# Inputs      : $line - the current line in the results.xml file. This line

#                       will contain '<testcase'.

#               $file - the file handle of the results.xml file.

#

# Output      : none

#

# Returns     : A string array of all lines read, including the start and end

#               'testcase' tag.

#

sub getTestCase {

    my ($line, $file) = @_;

    my (@result);

    #   Save the first line, containing the opening <testcase> tag

    push(@result, $line);

    #   No more to do if it's all on one line

    return @result if ($line =~/\<\/testcase\>/);

    #   Save subsequent lines up to and including the closing </testcase> tag

    while (<$file>)

    {

        push (@result, $_);

        last if /\<\/testcase\>/;

    }

    return @result;

}

#------------------------------------------------------------------------------

# Function    : getDetails

#

# Description :

#

# Inputs      : $line - a line of XML containing all the attributes of the

#                       <testcase> tag.

#

# Output      : none

#

# Returns     : A tuple of values ($name, $duration, $outcome)

#               $name - The test name, concatenated from the 'classname' and

#                       'name' attributes.

#               $duration - The test duration, in seconds, from the 'time'

#                           attribute.

#               $outcome - The test outcome (= 'PASS') if we know it (i.e. the

#                          closing </testcase> tag is on the same line).

#                          Otherwise, if we don't know it, return undef.

#

sub getDetails {

    my ($line) = shift; 

    #   Pattern to extract a thing between two quotes (' or ").

    my ($xml_value) = qr/["\']([^"\']*)["\']/;

    my ($name, $duration, $outcome);

    if ($line =~ /\sclassname=${xml_value}\s*name=${xml_value}\s*time=${xml_value}/) {

        $name = $1.'::'.$2;

        $duration = $3;

        $outcome = 'PASS' if $line =~ /\<\/testcase\>/;

    }

    return ($name, $duration, $outcome);

}

#------------------------------------------------------------------------------

# Function    : parseMessage

#

# Description :

#

# Inputs      : $pattern - The XML element name from which to extract the

#                          message.

#               $line - The line with the open tag. E.g.

#                          <error ...>

#               @lines - all lines until, and including, the closing tag. E.g.

#                            ...

#                            ...

#                          </error>

#

# Output      : none

#

# Returns     : The value of the matched element.

#

sub parseMessage {

    my ($pattern, $line, @lines) = @_;

    my ($message);

    if ($line =~ /\<${pattern} /) {

        my $temp_message = $line;

        #    consume until </$pattern>

        while ($line = shift @lines) {

            $temp_message .= $line;

            last if $line =~ /\<\/${pattern}\>/;

        }

        #   Extract between '<pattern ...>' and '</pattern>'

        $temp_message =~ m/\<${pattern}[^>]*>([^\<]*)\<\/${pattern}>/;

        $message = $1;

    }

    return ($message);

}

#------------------------------------------------------------------------------

# Function    : parseTestCase

#

# Description : Takes a <testCase> element and parses it into a hash.

#

# Inputs      : A tuple of ($test_target, @lines)

#               $test_target - The target platform, e.g. 'Win32'.

#               @lines - The lines from the file from the opening, to the

#                        closing <testCase> tag (inclusive).

#

# Output      : none

#

# Returns     : A hash with the following keys:

#                 TARGET_PLATFORM - What was passed in as $testTarget.

#                 NAME - the test method name.

#                 DURATION - the test duration, in seconds.

#                 OUTCOME - one of 'PASS', 'FAILED', 'ERROR'

#

sub parseTestCase {

    my $testTarget = shift;

    my %testRun;

    $testRun{TARGET_PLATFORM} = $testTarget;

    while (my $line = shift @_) {

        my ($name, $duration, $outcome, $message);

        ($name, $duration, $outcome) = getDetails($line);

        if (defined($name) && defined($duration)) {

            $testRun{NAME} = $name;

            $testRun{DURATION} = $duration;

            $testRun{OUTCOME} = $outcome if (defined($outcome));

            next;

        }

        last if $line =~ /\<\/testcase\>/;

        ($message) = parseMessage(qr/error/  , $line, @_);

        if (defined($message)) {

            $testRun{OUTCOME} = 'ERROR';

            $testRun{MESSAGE} = $message;

            next;

        }

        ($message) = parseMessage(qr/failure/, $line, @_);

        if (defined($message)) {

            $testRun{OUTCOME} = 'FAILURE';

            $testRun{MESSAGE} = $message;

            next;

        }

    }

    return %testRun;

}

1;

=pod 1

=head1 NAME

utf_ant - Parse Ant Junit test results for import to Release manager.

=head1 SYNOPSIS

  jats utf_ant [options]

 Options:

    -help        - Help message (may be repeated)

    -verbose     - Level of user messages output during processing.

    -out=path    - The output folder where to generate the XML file.

    -target=name - The target platform for which the tests were run.

=head1 OPTIONS

=over 8

=item B<-help>

Print a help message and exists. This switch may be repeated up to three

times to provide more detailed help.

E.g.

jats utf_ant -help

jats utf_ant -help -help -help

=item B<-verbose>

This option will display progress information as the program executes.

=item B<-out=path>

This is a mandatory option, that tells the program where to put the output

file.

=item B<-target=name>

This is a mandatory option, that tells the program the target platform for

which the tests were run. The output filename has this as its prefix.

=back

=head1 DESCRIPTION

This program is used to allow the Release manager to store test results

obtained from JUnit run by Ant.

It converts ANT JUnit output to a standard XML format for importing in

to the Release Manager database using another program.

The intent is that there is a suite of these converters that all output

the same format XML, that can then be imported to the Release Manager

database.

e.g. mstest_utf - which converts MsTest output to the desired XML format.

The Ant result file is looked for in the current folder and any

sub-folders. The file is identified by a pattern which is:

        'Test-.*\.xml'

The first matching file is used, and no more are processed.

The output is stored in the given output folder, which may be a relative

or absolute path. The output filename is derived from the given target

platform and a high resolution timestamp. E.g.

        './result/Win32-141860573651218.xml'

=head2 Examples

Process the Ant file and place the output in the 'result' folder for the 'Ubunut12' target.

    jats utf_and -out=result -target='Ubuntu12'

This will generate the file:

    ./result/Ubuntu12-<time>.xml

=cut