#! /usr/bin/env perl
-# Copyright (c) 2012-2014. The SimGrid Team.
+# Copyright (c) 2012-2015. The SimGrid Team.
# All rights reserved.
# This program is free software; you can redistribute it and/or modify it
eval 'exec perl -S $0 ${1+"$@"}'
if $running_under_some_shell;
+# If you change this file, please stick to the formatting you got with:
+# perltidy --backup-and-modify-in-place --maximum-line-length=180 --output-line-ending=unix --cuddled-else
+
=encoding UTF-8
=head1 NAME
=head1 SYNOPSIS
-B<tesh> [I<options>] I<tesh_file>
+B<tesh> [I<options>]... I<testsuite>
+
+=head1 DESCRIPTION
+
+Tesh is the testing shell, a specialized shell for running tests. It
+provides the specified input to the tested commands, and check that
+they produce the expected output and return the expected value.
+
+=head1 OPTIONS
+
+ --cd some/directory : ask tesh to switch the working directory before
+ launching the tests
+ --setenv var=value : set a specific environment variable
+ --cfg arg : add parameter --cfg=arg to each command line
+ --log arg : add parameter --log=arg to each command line
+ --enable-coverage : ignore output lines starting with "profiling:"
+
+=head1 TEST SUITE FILE SYTAX
+
+A test suite is composed of one or several I<command blocks> separated
+by empty lines, each of them being composed of a command to run, its
+input text and the expected output.
+
+The first char of each line specifies the type of line according to
+the following list. The second char of each line is ignored.
+
+ `$' command to run in foreground
+ `&' command to run in background
+
+ `<' input to pass to the command
+ `>' output expected from the command
+
+ `!' metacommand, which can be one of:
+ `timeout' <integer>|no
+ `expect signal' <signal name>
+ `expect return' <integer>
+ `output' <ignore|display>
+ `setenv <key>=<val>'
+
+ `p' an informative message to print
+
+If the expected output do not match the produced output, or if the
+command did not end as expected, Tesh provides an error message (see
+the OUTPUT section below) and stops.
+
+=head2 Command blocks examples
+
+In a given command block, you can declare the command, its input and
+its expected output in the order that you see fit.
+
+ $ cat
+ < TOTO
+ > TOTO
+
+ > TOTO
+ $ cat
+ < TOTO
+
+ > TOTO
+ < TOTO
+ $ cat
+
+You can group several commands together, provided that they don't have
+any input nor output.
+
+ $ mkdir testdir
+ $ cd testdir
+
+=head2 Enforcing the command return code
+
+By default, Tesh enforces that the tested command returns 0. If not,
+it fails with an appropriate message and returns I<code+40> itself.
+
+You specify that a given command block is expected to return another
+code as follows:
+
+ # This command MUST return 42
+ ! expect return 42
+ $ sh -e "exit 42"
+
+The I<expect return> construct applies only to the next command block.
+
+=head2 Commands that are expected to raise signals
+
+By default, Tesh detects when the command is killed by a signal (such
+as SEGV on segfaults). This is usually unexpected and unfortunate. But
+if not, you can specify that a given command block is expected to fail
+with a signal as follows:
+
+ # This command MUST raise a segfault
+ ! expect signal SIGSEGV
+ $ ./some_failing_code
+
+The I<expect signal> construct applies only to the next command block.
+
+=head2 Timeouts
+
+By default, no command is allowed to run more than 5 seconds. You can
+change this value as follows:
+
+ # Allow some more time to the command
+ ! timeout 60
+ $ ./some_longer_command
+
+You can also disable the timeout completely by passing "no" as a value:
+
+ # This command will never timeout
+ ! timeout no
+ $ ./some_very_long_but_safe_command
+
+=head2 Setting environment variables
+
+You can modify the environment of the tested commands as follows:
+
+ ! setenv PATH=/bin
+ $ my_command
+
+=head2 Not enforcing the expected output
+
+By default, the commands output is matched against the one expected,
+and an error is raised on discrepancy. Metacommands to change this:
+
+=over 4
+
+=item output ignore
+
+The output is completely discarded.
+
+=item output display
+
+The output is displayed, but no error is issued if it differs from the
+expected output.
+
+=item output sort
+
+The output is sorted before comparison (see next section).
+
+=back
+
+=head2 Sorting output
+
+If the order of the command output changes between runs, you want to
+sort it before enforcing that it is exactly what you expect. In
+SimGrid for example, this happens when parallel execution is
+activated: User processes are run in parallel at each timestamp, and
+the output is not reproducible anymore. Until you sort the lines.
+
+You can sort the command output as follows:
+
+ ! output sort
+ $ ./some_multithreaded_command
+
+Sorting lines this ways often makes the tesh output very intricate,
+complicating the error analysis: the process logical order is defeated
+by the lexicographical sort.
+
+The solution is to prefix each line of your output with temporal
+information so that lines can be grouped by timestamps. The
+lexicographical sort then only applies to lines that occured at the
+same timestamp. Here is a SimGrid example:
+
+ # Sort only lines depending on the first 19 chars
+ ! output sort 19
+ $ ./some_simgrid_simulator --log=root.fmt:[%10.6r]%e(%i:%P@%h)%e%m%n
+
+This approach may seem surprizing at the first glance but it does its job:
+
+=over 4
+
+=item Every timestamps remain separated, as it should;
+
+=item In each timestamp, the output order of processes become
+ reproducible: that's the lexicographical order of their name;
+
+=item For each process, the order of its execution is preserved: its
+ messages within a given timestamp are not reordered.
+
+=back
+
+That way, tesh can do its job (no false positive, no false negative)
+despite the unpredictable order of executions of processes within a
+timestamp, and reported errors remain easy to analyze (execution of a
+given process preserved).
+
+This example is very SimGrid oriented, but the feature could even be
+usable by others, who knows?
+
+
+=head1 BUILTIN COMMANDS
+
+=head2 mkfile: creating a file
+
+This command creates a file of the name provided as argument, and adds
+the content it gets as input.
+
+ $ mkfile myFile
+ > some content
+ > to the file
+
+It is not possible to use the cat command, as one would expect,
+because stream redirections are currently not implemented in Tesh.
+
+=head1 BUGS, LIMITATIONS AND POSSIBLE IMPROVEMENTS
+
+The main limitation is the lack of stream redirections in the commands
+(">", "<" and "|" shell constructs and friends). The B<mkfile> builtin
+command makes this situation bearable.
+
+It would be nice if we could replace the tesh file completely with
+command line flags when the output is not to be verified.
=cut
-my($bindir)=".";
-my($srcdir)=".";
-my($timeout)=0;
-my($time_to_wait)=0;
-my $path = $0;
-my $enable_coverage=0;
-my $diff_tool=0;
-my $diff_tool_tmp_fh=0;
-my $diff_tool_tmp_filename=0;
-my $sort_prefix = -1;
+
+BEGIN {
+ # Disabling IPC::Run::Debug saves tons of useless calls.
+ $ENV{'IPCRUNDEBUG'} = 'none'
+ unless exists $ENV{'IPCRUNDEBUG'};
+}
+
+my $enable_coverage = 0;
+my $diff_tool = 0;
+my $diff_tool_tmp_fh = 0;
+my $diff_tool_tmp_filename = 0;
+my $sort_prefix = -1;
my $tesh_file;
my $tesh_name;
-my $error=0;
-my $exitcode=0;
+my $error = 0;
+my $exitcode = 0;
my @bg_cmds;
my (%environ);
$SIG{'PIPE'} = 'IGNORE';
+
+my $path = $0;
$path =~ s|[^/]*$||;
-push @INC,$path;
+push @INC, $path;
+
+use lib "@CMAKE_BINARY_DIR@/bin";
+
+use Diff qw(diff); # postpone a bit to have time to change INC
use Getopt::Long qw(GetOptions);
use strict;
-use Term::ANSIColor;
use Text::ParseWords;
-use IPC::Open3;
+use IPC::Run qw(start run timeout finish);
use IO::File;
+use English;
-##
-## Portability bits for windows
-##
+####
+#### Portability bits for windows
+####
-use constant RUNNING_ON_WINDOWS => ($^O =~ /^(?:mswin|dos|os2)/oi);
+use constant RUNNING_ON_WINDOWS => ( $OSNAME =~ /^(?:mswin|dos|os2)/oi );
use POSIX qw(:sys_wait_h WIFEXITED WIFSIGNALED WIFSTOPPED WEXITSTATUS WTERMSIG WSTOPSIG
- :signal_h SIGINT SIGTERM SIGKILL SIGABRT SIGSEGV);
-# These are not implemented on windows (see bug 6798 and 6470)
-BEGIN {
- if (RUNNING_ON_WINDOWS) {
- *WIFEXITED = sub { not $_[0] & 127 };
- *WEXITSTATUS = sub { $_[0] >> 8 };
- *WIFSIGNALED = sub { ($_[0] & 127) && ($_[0] & 127 != 127) };
- *WTERMSIG = sub { $_[0] & 127 };
- }
-}
-
+ :signal_h SIGINT SIGTERM SIGKILL SIGABRT SIGSEGV);
-##
-## Command line option handling
-##
-
-sub var_subst {
- my ($text, $name, $value) = @_;
- if ($value) {
- $text =~ s/\${$name(?::[=-][^}]*)?}/$value/g;
- $text =~ s/\$$name(\W|$)/$value$1/g;
- }
- else {
- $text =~ s/\${$name:=([^}]*)}/$1/g;
- $text =~ s/\${$name}//g;
- $text =~ s/\$$name(\W|$)/$1/g;
- }
- return $text;
-}
-
-# option handling helper subs
-sub cd_cmd {
- my $directory=$_[1];
- my $failure=1;
- if (-e $directory && -d $directory) {
- chdir("$directory");
- print "[Tesh/INFO] change directory to $directory\n";
- $failure=0;
- } elsif (-e $directory) {
- print "Cannot change directory to '$directory': it is not a directory\n";
- } else {
- print "Chdir to $directory failed: No such file or directory\n";
- }
- if($failure==1){
- $error=1;
- $exitcode=4;
- print "Test suite `$tesh_file': NOK (system error)\n";
- exit 4;
+BEGIN {
+ if (RUNNING_ON_WINDOWS) { # Missing on windows
+ *WIFEXITED = sub { not $_[0] & 127 };
+ *WEXITSTATUS = sub { $_[0] >> 8 };
+ *WIFSIGNALED = sub { ( $_[0] & 127 ) && ( $_[0] & 127 != 127 ) };
+ *WTERMSIG = sub { $_[0] & 127 };
+
+ # used on the command lines
+ $environ{'EXEEXT'} = ".exe";
}
}
-sub setenv_cmd {
- my($var,$ctn);
- if ($_[0] =~ /^(.*)=(.*)$/) {
- ($var,$ctn)=($1,$2);
- }elsif ($_[1] =~ /^(.*)=(.*)$/) {
- ($var,$ctn)=($1,$2);
- } else {
- die "[Tesh/CRITICAL] Malformed argument to setenv: expected 'name=value' but got '$_[1]'\n";
- }
-
- print "[Tesh/INFO] setenv $var=$ctn\n";
- $environ{$var} = $ctn;
-}
-
-# Main option parsing sub
-
-sub get_options {
- # remove the tesh file from the ARGV used
- my @ARGV = @_;
- $tesh_file = pop @ARGV;
-
- # temporary arrays for GetOption
- my @verbose = ();
- my @cfg;
- my $log; # ignored
+####
+#### Command line option handling
+####
- my %opt = (
- "help" => 0,
- "debug" => 0,
- "verbose" => 0
- );
+my %opts = ( "debug" => 0,
+ "timeout" => 5, # No command should run any longer than 5 seconds by default
+ );
- Getopt::Long::config('bundling', 'no_getopt_compat', 'no_auto_abbrev');
-
- GetOptions(
- 'help|h' => \$opt{'help'},
-
- 'verbose|v' => \@verbose,
- 'debug|d' => \$opt{"debug"},
+Getopt::Long::config( 'bundling', 'no_getopt_compat', 'no_auto_abbrev' );
+GetOptions(
+ 'debug|d' => \$opts{"debug"},
'difftool=s' => \$diff_tool,
- 'cd=s' => \&cd_cmd,
- 'timeout=s' => \$opt{'timeout'},
- 'setenv=s' => \&setenv_cmd,
- 'cfg=s' => \@cfg,
- 'log=s' => \$log,
- 'enable-coverage+' => \$enable_coverage,
- );
+ 'cd=s' => sub { cd_cmd( $_[1] ) },
+ 'timeout=s' => \$opts{'timeout'},
+ 'setenv=s' => sub { setenv_cmd( $_[1] ) },
+ 'cfg=s' => sub { $opts{'cfg'} .= " --cfg=$_[1]" },
+ 'log=s' => sub { $opts{'log'} .= " --log=$_[1]" },
+ 'enable-coverage+' => \$enable_coverage,
+);
+
+$tesh_file = pop @ARGV;
+$tesh_name = $tesh_file;
+$tesh_name =~ s|^.*?/([^/]*)$|$1|;
- if($enable_coverage){
- print "Enable coverage\n";
- }
+print "Enable coverage\n" if ($enable_coverage);
- if($diff_tool){
+if ($diff_tool) {
use File::Temp qw/ tempfile /;
- ($diff_tool_tmp_fh, $diff_tool_tmp_filename) = tempfile();
+ ( $diff_tool_tmp_fh, $diff_tool_tmp_filename ) = tempfile();
print "New tesh: $diff_tool_tmp_filename\n";
- }
+}
- unless($tesh_file=~/(.*)\.tesh/){
- $tesh_file="(stdin)";
- $tesh_name="(stdin)";
+if ( $tesh_file =~ m/(.*)\.tesh/ ) {
+ print "Test suite `$tesh_file'\n";
+} else {
+ $tesh_name = "(stdin)";
print "Test suite from stdin\n";
- }else{
- $tesh_name=$1;
- print "Test suite `$tesh_name'\n";
- }
-
- $opt{'verbose'} = scalar @verbose;
- foreach (@cfg) {
- $opt{'cfg'} .= " --cfg=$_";
- }
- return %opt;
}
-my %opts = get_options(@ARGV);
-
-##
-## File parsing
-##
-my($nb_arg)=0;
-my($old_buffer);
-my($linebis);
-my($SIGABRT)=0;
-my($verbose)=0;
-my($return)=-1;
-my($pid);
-my($result);
-my($result_err);
-my($forked);
-my($config)="";
-my($tesh_command)=0;
-my(@buffer_tesh)=();
-
###########################################################################
-sub exit_status {
- my $status = shift;
- if (WIFEXITED($status)) {
- $exitcode=WEXITSTATUS($status)+40;
- return "returned code ".WEXITSTATUS($status);
- } elsif (WIFSIGNALED($status)) {
- my $code;
- if (WTERMSIG($status) == SIGINT){$code="SIGINT"; }
- elsif (WTERMSIG($status) == SIGTERM) {$code="SIGTERM"; }
- elsif (WTERMSIG($status) == SIGKILL) {$code= "SIGKILL"; }
- elsif (WTERMSIG($status) == SIGABRT) {$code="SIGABRT"; }
- elsif (WTERMSIG($status) == SIGSEGV) {$code="SIGSEGV" ;}
- $exitcode=WTERMSIG($status)+4;
- return "got signal $code";
- }
- return "Unparsable status. Is the process stopped?";
-}
-
sub exec_cmd {
- my %cmd = %{$_[0]};
- if ($opts{'debug'}) {
- print "IN BEGIN\n";
- map {print " $_"} @{$cmd{'in'}};
- print "IN END\n";
- print "OUT BEGIN\n";
- map {print " $_"} @{$cmd{'out'}};
- print "OUT END\n";
- print "CMD: $cmd{'cmd'}\n";
- }
-
- # cleanup the command line
- if(RUNNING_ON_WINDOWS) {
- var_subst($cmd{'cmd'}, "EXEEXT", ".exe");
- } else {
- var_subst($cmd{'cmd'}, "EXEEXT", "");
- }
-
- # substitute environ variables
- foreach my $key (keys %environ) {
- $cmd{'cmd'} = var_subst($cmd{'cmd'}, $key, $environ{$key});
- }
- # substitute remaining variables, if any
- while ($cmd{'cmd'} =~ /\${(\w+)(?::[=-][^}]*)?}/) {
- $cmd{'cmd'} = var_subst($cmd{'cmd'}, $1, "");
- }
- while ($cmd{'cmd'} =~ /\$(\w+)/) {
- $cmd{'cmd'} = var_subst($cmd{'cmd'}, $1, "");
- }
-
- # add cfg options
- $cmd{'cmd'} .= " $opts{'cfg'}" if (defined($opts{'cfg'}) && length($opts{'cfg'}));
-
- # final cleanup
- $cmd{'cmd'} =~ s/^\s+//;
- $cmd{'cmd'} =~ s/\s+$//;
-
- print "[$tesh_name:$cmd{'line'}] $cmd{'cmd'}\n" ;
-
- ###
- # exec the command line
- ### $line =~ s/\r//g;
-
- $cmd{'got'} = IO::File->new_tmpfile;
- $cmd{'got'}->autoflush(1);
- local *E = $cmd{'got'};
- $cmd{'pid'} = open3(\*CHILD_IN, ">&E", ">&E",
- quotewords('\s+', 0, $cmd{'cmd'}));
-
- # push all provided input to executing child
- map { print CHILD_IN "$_\n"; } @{$cmd{'in'}};
- close CHILD_IN;
-
- # if timeout specified, fork and kill executing child at the end of timeout
- if (defined($cmd{'timeout'}) or defined($opts{'timeout'})){
- $time_to_wait= defined($cmd{'timeout'}) ? $cmd{'timeout'} : $opts{'timeout'};
- $forked = fork();
- $timeout=-1;
- die "fork() failed: $!" unless defined $forked;
- if ( $forked == 0 ) { # child
- sleep $time_to_wait;
-# if (RUNNING_ON_WINDOWS) {
-# system("TASKKILL /F /T /PID $cmd{'pid'}");
-# # /F: Forcefully
-# # /T: Tree kill
-# # /PID: poor soul
-# } else {
- kill('TERM', $cmd{'pid'});
- sleep 1;
- kill('KILL', $cmd{'pid'});
-# }
- exit $time_to_wait;
+ my %cmd = %{ $_[0] };
+ if ( $opts{'debug'} ) {
+ map { print "IN: $_\n" } @{ $cmd{'in'} };
+ map { print "OUT: $_\n" } @{ $cmd{'out'} };
+ print "CMD: $cmd{'cmd'}\n";
}
- }
-
-
- # Cleanup the executing child, and kill the timeouter brother on need
- $cmd{'return'} = 0 unless defined($cmd{'return'});
- if($cmd{'background'} != 1){
- waitpid ($cmd{'pid'}, 0);
- $cmd{'gotret'} = exit_status($?);
- parse_out(\%cmd);
- }else{
- # & commands, which will be handled at the end
- push @bg_cmds, \%cmd;
- # no timeout for background commands
- if($forked){
- kill(SIGKILL, $forked);
- $timeout=0;
- $forked=0;
- }
- }
-}
+ # substitute environment variables
+ foreach my $key ( keys %environ ) {
+ $cmd{'cmd'} = var_subst( $cmd{'cmd'}, $key, $environ{$key} );
+ }
-sub parse_out {
- my %cmd = %{$_[0]};
- my $gotret=$cmd{'gotret'};
+ # substitute remaining variables, if any
+ while ( $cmd{'cmd'} =~ /\$\{(\w+)(?::[=-][^}]*)?\}/ ) {
+ $cmd{'cmd'} = var_subst( $cmd{'cmd'}, $1, "" );
+ }
+ while ( $cmd{'cmd'} =~ /\$(\w+)/ ) {
+ $cmd{'cmd'} = var_subst( $cmd{'cmd'}, $1, "" );
+ }
- my $wantret;
+ # add cfg and log options
+ $cmd{'cmd'} .= " $opts{'cfg'}"
+ if ( defined( $opts{'cfg'} ) && length( $opts{'cfg'} ) );
+ $cmd{'cmd'} .= " $opts{'log'}"
+ if ( defined( $opts{'log'} ) && length( $opts{'log'} ) );
- if(defined($cmd{'expect'}) and ($cmd{'expect'} ne "")){
- $wantret = "got signal $cmd{'expect'}";
- }else{
- $wantret = "returned code ".(defined($cmd{'return'})? $cmd{'return'} : 0);
- }
+ # finally trim any remaining space chars
+ $cmd{'cmd'} =~ s/^\s+//;
+ $cmd{'cmd'} =~ s/\s+$//;
- local *got = $cmd{'got'};
- seek(got,0,0);
- # pop all output from executing child
- my @got;
- while(defined(my $got=<got>)) {
- $got =~ s/\r//g;
- chomp $got;
- print $diff_tool_tmp_fh "> $got\n" if ($diff_tool);
+ print "[$tesh_name:$cmd{'line'}] $cmd{'cmd'}\n";
- if (!($enable_coverage and $got=~ /^profiling:/)){
- push @got, $got;
- }
- }
+ $cmd{'return'} ||= 0;
+ $cmd{'timeout'} ||= $opts{'timeout'};
+
- if ($cmd{'sort'}){
- # Save the unsorted observed output to report it on error.
- map { push @{$cmd{'unsorted got'}}, $_ } @got;
+ ###
+ # exec the command line
- sub mysort{
- substr($a, 0, $sort_prefix) cmp substr($b, 0, $sort_prefix)
+ my @cmdline;
+ if(defined $ENV{VALGRIND_COMMAND}) {
+ push @cmdline, $ENV{VALGRIND_COMMAND};
+ push @cmdline, split(" ", $ENV{VALGRIND_OPTIONS});
+ if($cmd{'timeout'} ne 'no'){
+ $cmd{'timeout'}=$cmd{'timeout'}*20
+ }
}
- use sort 'stable';
- if ($sort_prefix>0) {
- @got = sort mysort @got;
+ push @cmdline, quotewords( '\s+', 0, $cmd{'cmd'} );
+ my $input = defined($cmd{'in'})? join("\n",@{$cmd{'in'}}) : "";
+ my $output = " " x 10240; $output = ""; # Preallocate 10kB, and reset length to 0
+ $cmd{'got'} = \$output;
+ $cmd{'job'} = start \@cmdline, '<', \$input, '>&', \$output,
+ ($cmd{'timeout'} eq 'no' ? () : timeout($cmd{'timeout'}));
+
+ if ( $cmd{'background'} ) {
+ # Just enqueue the job. It will be dealed with at the end
+ push @bg_cmds, \%cmd;
} else {
- @got = sort @got;
- }
- while (@got and $got[0] eq "") {
- shift @got;
+ # Deal with its ending conditions right away
+ analyze_result( \%cmd );
}
+}
- # Sort the expected output to make it easier to write for humans
- if(defined($cmd{'out'})){
- if ($sort_prefix>0) {
- @{$cmd{'out'}} = sort mysort @{$cmd{'out'}};
- } else {
- @{$cmd{'out'}} = sort @{$cmd{'out'}};
- }
- while (@{$cmd{'out'}} and ${$cmd{'out'}}[0] eq "") {
- shift @{$cmd{'out'}};
- }
+sub analyze_result {
+ my %cmd = %{ $_[0] };
+ $cmd{'timeouted'} = 0; # initialization
+
+ # Wait for the end of the child process
+ #####
+ eval {
+ finish( $cmd{'job'} );
+ };
+ if ($@) { # deal with the errors that occured in the child process
+ if ($@ =~ /timeout/) {
+ $cmd{'job'}->kill_kill;
+ $cmd{'timeouted'} = 1;
+ } elsif ($@ =~ /^ack / and $@ =~ /pipe/) { # IPC::Run is not very expressive about the pipes that it gets :(
+ print STDERR "Tesh: Broken pipe (ignored).\n";
+ } else {
+ die $@; # Don't know what it is, so let it go.
+ }
+ }
+
+ # Gather information
+ ####
+
+ # pop all output from executing child
+ my @got;
+ map { print "GOT: $_\n" } ${$cmd{'got'}} if $opts{'debug'};
+ foreach my $got ( split("\n", ${$cmd{'got'}}) ) {
+ $got =~ s/\r//g;
+ chomp $got;
+ print $diff_tool_tmp_fh "> $got\n" if ($diff_tool);
+
+ unless ( $enable_coverage and $got =~ /^profiling:/ ) {
+ push @got, $got;
+ }
}
- }
-
- # Did we timeout ? If yes, handle it. If not, kill the forked process.
-
- if($timeout==-1 and ($gotret eq "got signal SIGTERM" or $gotret eq "got signal SIGKILL")){
- $gotret="return code 0";
- $timeout=1;
- $gotret= "timeout after $time_to_wait sec";
- $error=1;
- $exitcode=3;
- print STDERR "<$cmd{'file'}:$cmd{'line'}> timeouted. Kill the process.\n";
- }else{
- $timeout=0;
- }
- if($gotret ne $wantret) {
- $error=1;
- my $msg = "Test suite `$cmd{'file'}': NOK (<$cmd{'file'}:$cmd{'line'}> $gotret)\n";
- if ($timeout!=1) {
- $msg=$msg."Output of <$cmd{'file'}:$cmd{'line'}> so far:\n";
+
+ # How did the child process terminate?
+ my $status = $?;
+ $cmd{'gotret'} = "Unparsable status. Please report this tesh bug.";
+ if ( $cmd{'timeouted'} ) {
+ $cmd{'gotret'} = "timeout after $cmd{'timeout'} sec";
+ $error = 1;
+ $exitcode = 3;
+ } elsif ( WIFEXITED($status) ) {
+ $exitcode = WEXITSTATUS($status) + 40;
+ $cmd{'gotret'} = "returned code " . WEXITSTATUS($status);
+ } elsif ( WIFSIGNALED($status) ) {
+ my $code;
+ if ( WTERMSIG($status) == SIGINT ) { $code = "SIGINT"; }
+ elsif ( WTERMSIG($status) == SIGTERM ) { $code = "SIGTERM"; }
+ elsif ( WTERMSIG($status) == SIGKILL ) { $code = "SIGKILL"; }
+ elsif ( WTERMSIG($status) == SIGABRT ) { $code = "SIGABRT"; }
+ elsif ( WTERMSIG($status) == SIGSEGV ) { $code = "SIGSEGV"; }
+ $exitcode = WTERMSIG($status) + 4;
+ $cmd{'gotret'} = "got signal $code";
}
- map {$msg .= "|| $_\n"} @got;
- if(!@got) {
- if($timeout==1){
- print STDERR "<$cmd{'file'}:$cmd{'line'}> No output before timeout\n";
- }else{
- $msg .= "||\n";
- }
+
+ # How was it supposed to terminate?
+ my $wantret;
+ if ( defined( $cmd{'expect'} ) and ( $cmd{'expect'} ne "" ) ) {
+ $wantret = "got signal $cmd{'expect'}";
+ } else {
+ $wantret = "returned code " . ( defined( $cmd{'return'} ) ? $cmd{'return'} : 0 );
}
- $timeout = 0;
- print STDERR "$msg";
- }
-
-
- ###
- # Check the result of execution
- ###
- my $diff;
- if (defined($cmd{'output display'})){
- print "[Tesh/INFO] Here is the (ignored) command output:\n";
- map { print "||$_\n" } @got;
- }
- elsif (!defined($cmd{'output ignore'})){
- $diff = build_diff(\@{$cmd{'out'}}, \@got);
- }else{
- print "(ignoring the output of <$cmd{'file'}:$cmd{'line'}> as requested)\n"
- }
- if (length $diff) {
- print "Output of <$cmd{'file'}:$cmd{'line'}> mismatch".($cmd{'sort'}?" (even after sorting)":"").":\n";
- map { print "$_\n" } split(/\n/,$diff);
- if ($cmd{'sort'}) {
- print "WARNING: Both the observed output and expected output were sorted as requested.\n";
- print "WARNING: Output were only sorted using the $sort_prefix first chars.\n"
- if ($sort_prefix>0);
- print "WARNING: Use <! output sort 19> to sort by simulated date and process ID only.\n";
- # print "----8<--------------- Begin of unprocessed observed output (as it should appear in file):\n";
- # map {print "> $_\n"} @{$cmd{'unsorted got'}};
- # print "--------------->8---- End of the unprocessed observed output.\n";
+
+ # Enforce the outcome
+ ####
+
+ # Did it end as expected?
+ if ( $cmd{'gotret'} ne $wantret ) {
+ $error = 1;
+ my $msg = "Test suite `$tesh_name': NOK (<$tesh_name:$cmd{'line'}> $cmd{'gotret'})\n";
+ if ( scalar @got ) {
+ $msg = $msg . "Output of <$tesh_name:$cmd{'line'}> so far:\n";
+ map { $msg .= "|| $_\n" } @got;
+ } else {
+ $msg .= "<$tesh_name:$cmd{'line'}> No output so far.\n";
+ }
+ print STDERR "$msg";
}
- print "Test suite `$cmd{'file'}': NOK (<$cmd{'file'}:$cmd{'line'}> output mismatch)\n";
- $error=1;
- $exitcode=2;
- }
-}
+ # Does the output match?
+ if ( $cmd{'sort'} ) {
+ sub mysort {
+ substr( $a, 0, $sort_prefix ) cmp substr( $b, 0, $sort_prefix );
+ }
+ use sort 'stable';
+ if ( $sort_prefix > 0 ) {
+ @got = sort mysort @got;
+ } else {
+ @got = sort @got;
+ }
+ while ( @got and $got[0] eq "" ) {
+ shift @got;
+ }
-sub mkfile_cmd {
- my %cmd = %{$_[0]};
- my $file = $cmd{'arg'};
- print "[Tesh/INFO] mkfile $file\n";
+ # Sort the expected output too, to make tesh files easier to write for humans
+ if ( defined( $cmd{'out'} ) ) {
+ if ( $sort_prefix > 0 ) {
+ @{ $cmd{'out'} } = sort mysort @{ $cmd{'out'} };
+ } else {
+ @{ $cmd{'out'} } = sort @{ $cmd{'out'} };
+ }
+ while ( @{ $cmd{'out'} } and ${ $cmd{'out'} }[0] eq "" ) {
+ shift @{ $cmd{'out'} };
+ }
+ }
+ }
- unlink($file);
- open(FILE,">$file") or die "[Tesh/CRITICAL] Unable to create file $file: $!\n";
- print FILE join("\n", @{$cmd{'in'}});
- print FILE "\n" if (scalar @{$cmd{'in'}} > 0);
- close(FILE);
+ # Report the output if asked so or if it differs
+ if ( defined( $cmd{'output display'} ) ) {
+ print "[Tesh/INFO] Here is the (ignored) command output:\n";
+ map { print "||$_\n" } @got;
+ } elsif ( defined( $cmd{'output ignore'} ) ) {
+ print "(ignoring the output of <$tesh_name:$cmd{'line'}> as requested)\n";
+ } else {
+ my $diff = build_diff( \@{ $cmd{'out'} }, \@got );
+
+ if ( length $diff ) {
+ print "Output of <$tesh_name:$cmd{'line'}> mismatch" . ( $cmd{'sort'} ? " (even after sorting)" : "" ) . ":\n";
+ map { print "$_\n" } split( /\n/, $diff );
+ if ( $cmd{'sort'} ) {
+ print "WARNING: Both the observed output and expected output were sorted as requested.\n";
+ print "WARNING: Output were only sorted using the $sort_prefix first chars.\n"
+ if ( $sort_prefix > 0 );
+ print "WARNING: Use <! output sort 19> to sort by simulated date and process ID only.\n";
+
+ # print "----8<--------------- Begin of unprocessed observed output (as it should appear in file):\n";
+ # map {print "> $_\n"} @{$cmd{'unsorted got'}};
+ # print "--------------->8---- End of the unprocessed observed output.\n";
+ }
+
+ print "Test suite `$tesh_name': NOK (<$tesh_name:$cmd{'line'}> output mismatch)\n";
+ exit 2;
+ }
+ }
}
# parse tesh file
-#my $teshfile=$tesh_file;
-#$teshfile=~ s{\.[^.]+$}{};
-
-unless($tesh_file eq "(stdin)"){
- open TESH_FILE, $tesh_file or die "[Tesh/CRITICAL] Unable to open $tesh_file $!\n";
+my $infh; # The file descriptor from which we should read the teshfile
+if ( $tesh_name eq "(stdin)" ) {
+ $infh = *STDIN;
+} else {
+ open $infh, $tesh_file
+ or die "[Tesh/CRITICAL] Unable to open $tesh_file: $!\n";
}
-my %cmd; # everything about the next command to run
-my $line_num=0;
-my $finished =0;
-LINE: while (not $finished and not $error) {
- my $line;
-
-
- if ($tesh_file ne "(stdin)" and !defined($line=<TESH_FILE>)){
- $finished=1;
- next LINE;
- }elsif ($tesh_file eq "(stdin)" and !defined($line=<>)){
- $finished=1;
- next LINE;
- }
-
- $line_num++;
- chomp $line;
- $line =~ s/\r//g;
- print "[TESH/debug] $line_num: $line\n" if $opts{'debug'};
- my $next;
- # deal with line continuations
- while ($line =~ /^(.*?)\\$/) {
- $next=<TESH_FILE>;
- die "[TESH/CRITICAL] Continued line at end of file\n"
- unless defined($next);
+my %cmd; # everything about the next command to run
+my $line_num = 0;
+LINE: while ( not $error and defined( my $line = <$infh> )) {
+ chomp $line;
+ $line =~ s/\r//g;
+
$line_num++;
- chomp $next;
- print "[TESH/debug] $line_num: $next\n" if $opts{'debug'};
- $line = $1.$next;
- }
-
- # Push delayed commands on empty lines
- unless ($line =~ m/^(.)(.*)$/) {
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
- print $diff_tool_tmp_fh "$line\n" if ($diff_tool);
- next LINE;
- }
-
- my ($cmd,$arg) = ($1,$2);
- print $diff_tool_tmp_fh "$line\n" if ($diff_tool and $cmd ne '>');
- $arg =~ s/^ //g;
- $arg =~ s/\r//g;
- $arg =~ s/\\\\/\\/g;
- # handle the commands
- if ($cmd =~ /^#/) { #comment
- } elsif ($cmd eq '>'){ #expected result line
- print "[TESH/debug] push expected result\n" if $opts{'debug'};
- push @{$cmd{'out'}}, $arg;
-
- } elsif ($cmd eq '<') { # provided input
- print "[TESH/debug] push provided input\n" if $opts{'debug'};
- push @{$cmd{'in'}}, $arg;
-
- } elsif ($cmd eq 'p') { # comment
- print "[$tesh_name:$line_num] $arg\n";
-
- } elsif ($cmd eq '$') { # Command
- # if we have something buffered, run it now
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
+ print "[TESH/debug] $line_num: $line\n" if $opts{'debug'};
+
+ # deal with line continuations
+ while ( $line =~ /^(.*?)\\$/ ) {
+ my $next = <$infh>;
+ die "[TESH/CRITICAL] Continued line at end of file\n"
+ unless defined($next);
+ $line_num++;
+ chomp $next;
+ print "[TESH/debug] $line_num: $next\n" if $opts{'debug'};
+ $line = $1 . $next;
}
- if ($arg =~ /^\s*mkfile /){ # "mkfile" command line
- die "[TESH/CRITICAL] Output expected from mkfile command!\n" if scalar @{cmd{'out'}};
-
- $cmd{'arg'} = $arg;
- $cmd{'arg'} =~ s/\s*mkfile //;
- mkfile_cmd(\%cmd);
- %cmd = ();
-
- } elsif ($arg =~ /^\s*cd /) {
- die "[TESH/CRITICAL] Input provided to cd command!\n" if scalar @{cmd{'in'}};
- die "[TESH/CRITICAL] Output expected from cd command!\n" if scalar @{cmd{'out'}};
-
- $arg =~ s/^ *cd //;
- cd_cmd("",$arg);
- %cmd = ();
-
- } else { # regular command
- $cmd{'cmd'} = $arg;
- $cmd{'file'} = $tesh_file;
- $cmd{'line'} = $line_num;
- }
- }
- elsif($cmd eq '&'){ # parallel command line
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
- $cmd{'background'} = 1;
- $cmd{'cmd'} = $arg;
- $cmd{'file'} = $tesh_file;
- $cmd{'line'} = $line_num;
- }
- elsif($line =~ /^!\s*output sort/){ #output sort
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
- $cmd{'sort'} = 1;
- if ($line =~ /^!\s*output sort\s+(\d+)/) {
- $sort_prefix = $1;
- }
- }
- elsif($line =~ /^!\s*output ignore/){ #output ignore
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
- $cmd{'output ignore'} = 1;
- }
- elsif($line =~ /^!\s*output display/){ #output display
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
- $cmd{'output display'} = 1;
- }
- elsif($line =~ /^!\s*expect signal (\w*)/) {#expect signal SIGABRT
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
-print "hey\n";
- $cmd{'expect'} = "$1";
- }
- elsif($line =~ /^!\s*expect return/){ #expect return
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
- $line =~ s/^! expect return //g;
- $line =~ s/\r//g;
- $cmd{'return'} = $line;
- }
- elsif($line =~ /^!\s*setenv/){ #setenv
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
- $line =~ s/^! setenv //g;
- $line =~ s/\r//g;
- setenv_cmd($line);
- }
- elsif($line =~ /^!\s*include/){ #include
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
- }
- print color("red"), "[Tesh/CRITICAL] need include";
- print color("reset"), "\n";
- die;
- }
- elsif($line =~ /^!\s*timeout/){ #timeout
- if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
+ # If the line is empty, run any previously defined block and proceed to next line
+ unless ( $line =~ m/^(.)(.*)$/ ) {
+ if ( defined( $cmd{'cmd'} ) ) {
+ exec_cmd( \%cmd );
+ %cmd = ();
+ }
+ print $diff_tool_tmp_fh "$line\n" if ($diff_tool);
+ next LINE;
}
- $line =~ s/^! timeout //;
- $line =~ s/\r//g;
- $cmd{'timeout'} = $line;
- } else {
- die "[TESH/CRITICAL] parse error: $line\n";
- }
- if($forked){
- kill(SIGKILL, $forked);
- $timeout=0;
- }
-
-}
+ my ( $cmd, $arg ) = ( $1, $2 );
+ print $diff_tool_tmp_fh "$line\n" if ( $diff_tool and $cmd ne '>' );
+ $arg =~ s/^ //g;
+ $arg =~ s/\r//g;
+ $arg =~ s/\\\\/\\/g;
+
+ # Deal with the lines that can contribute to the current command block
+ if ( $cmd =~ /^#/ ) { # comment
+ next LINE;
+ } elsif ( $cmd eq '>' ) { # expected result line
+ print "[TESH/debug] push expected result\n" if $opts{'debug'};
+ push @{ $cmd{'out'} }, $arg;
+ next LINE;
+
+ } elsif ( $cmd eq '<' ) { # provided input
+ print "[TESH/debug] push provided input\n" if $opts{'debug'};
+ push @{ $cmd{'in'} }, $arg;
+ next LINE;
+
+ } elsif ( $cmd eq 'p' ) { # comment
+ print "[$tesh_name:$line_num] $arg\n";
+ next LINE;
+
+ }
+
+ # We dealt with all sort of lines that can contribute to a command block, so we have something else here.
+ # If we have something buffered, run it now and start a new block
+ if ( defined( $cmd{'cmd'} ) ) {
+ exec_cmd( \%cmd );
+ %cmd = ();
+ }
+ # Deal with the lines that must be placed before a command block
+ if ( $cmd eq '$' ) { # Command
+ if ( $arg =~ /^mkfile / ) { # "mkfile" command line
+ die "[TESH/CRITICAL] Output expected from mkfile command!\n"
+ if scalar @{ cmd { 'out' } };
+
+ $cmd{'arg'} = $arg;
+ $cmd{'arg'} =~ s/mkfile //;
+ mkfile_cmd( \%cmd );
+ %cmd = ();
+
+ } elsif ( $arg =~ /^\s*cd / ) {
+ die "[TESH/CRITICAL] Input provided to cd command!\n"
+ if scalar @{ cmd { 'in' } };
+ die "[TESH/CRITICAL] Output expected from cd command!\n"
+ if scalar @{ cmd { 'out' } };
+
+ $arg =~ s/^ *cd //;
+ cd_cmd($arg);
+ %cmd = ();
+
+ } else { # regular command
+ $cmd{'cmd'} = $arg;
+ $cmd{'line'} = $line_num;
+ }
-# Deal with last command
-if (defined($cmd{'cmd'})) {
- exec_cmd(\%cmd);
- %cmd = ();
+ } elsif ( $cmd eq '&' ) { # background command line
+ die "[TESH/CRITICAL] mkfile cannot be run in background\n"
+ if ($arg =~ /^mkfile/);
+ die "[TESH/CRITICAL] cd cannot be run in background\n"
+ if ($arg =~ /^cd/);
+
+ $cmd{'background'} = 1;
+ $cmd{'cmd'} = $arg;
+ $cmd{'line'} = $line_num;
+
+ # Deal with the meta-commands
+ } elsif ( $line =~ /^! (.*)/) {
+ $line = $1;
+
+ if ( $line =~ /^output sort/ ) {
+ $cmd{'sort'} = 1;
+ if ( $line =~ /^output sort\s+(\d+)/ ) {
+ $sort_prefix = $1;
+ }
+ } elsif ($line =~ /^output ignore/ ) {
+ $cmd{'output ignore'} = 1;
+ } elsif ( $line =~ /^output display/ ) {
+ $cmd{'output display'} = 1;
+ } elsif ( $line =~ /^expect signal (\w*)/ ) {
+ $cmd{'expect'} = $1;
+ } elsif ( $line =~ /^expect return/ ) {
+ $line =~ s/^expect return //g;
+ $line =~ s/\r//g;
+ $cmd{'return'} = $line;
+ } elsif ( $line =~ /^setenv/ ) {
+ $line =~ s/^setenv //g;
+ $line =~ s/\r//g;
+ setenv_cmd($line);
+ } elsif ( $line =~ /^timeout/ ) {
+ $line =~ s/^timeout //;
+ $line =~ s/\r//g;
+ $cmd{'timeout'} = $line;
+ }
+ } else {
+ die "[TESH/CRITICAL] parse error: $line\n";
+ }
}
+# We are done reading the input file
+close $infh unless ( $tesh_name eq "(stdin)" );
-if($forked){
- kill(SIGKILL, $forked);
- $timeout=0;
+# Deal with last command, if any
+if ( defined( $cmd{'cmd'} ) ) {
+ exec_cmd( \%cmd );
+ %cmd = ();
}
-foreach(@bg_cmds){
- my %test=%{$_};
- waitpid ($test{'pid'}, 0);
- $test{'gotret'} = exit_status($?);
- parse_out(\%test);
+foreach (@bg_cmds) {
+ my %test = %{$_};
+ analyze_result( \%test );
}
-@bg_cmds=();
-
if ($diff_tool) {
- close $diff_tool_tmp_fh;
- system("$diff_tool $diff_tool_tmp_filename $tesh_file");
- unlink $diff_tool_tmp_filename;
+ close $diff_tool_tmp_fh;
+ system("$diff_tool $diff_tool_tmp_filename $tesh_file");
+ unlink $diff_tool_tmp_filename;
}
-if($error !=0){
+if ( $error != 0 ) {
exit $exitcode;
-}elsif($tesh_file eq "(stdin)"){
+} elsif ( $tesh_name eq "(stdin)" ) {
print "Test suite from stdin OK\n";
-}else{
+} else {
print "Test suite `$tesh_name' OK\n";
}
-#my (@a,@b);
-#push @a,"bl1"; push @b,"bl1";
-#push @a,"bl2"; push @b,"bl2";
-#push @a,"bl3"; push @b,"bl3";
-#push @a,"bl4"; push @b,"bl4";
-#push @a,"bl5"; push @b,"bl5";
-#push @a,"bl6"; push @b,"bl6";
-#push @a,"bl7"; push @b,"bl7";
-##push @a,"Perl"; push @b,"ruby";
-#push @a,"END1"; push @b,"END1";
-#push @a,"END2"; push @b,"END2";
-#push @a,"END3"; push @b,"END3";
-#push @a,"END4"; push @b,"END4";
-#push @a,"END5"; push @b,"END5";
-#push @a,"END6"; push @b,"END6";
-#push @a,"END7"; push @b,"END7";
-#print "Identical:\n". build_diff(\@a,\@b);
-
-#@a = (); @b =();
-#push @a,"AZE"; push @b,"EZA";
-#print "Different:\n".build_diff(\@a,\@b);
-
-use lib "@CMAKE_BINARY_DIR@/bin" ;
-
-use Diff qw(diff); # postpone a bit to have time to change INC
+exit 0;
+
+####
+#### Helper functions
+####
sub build_diff {
- my $res;
- my $diff = Diff->new(@_);
-
- $diff->Base( 1 ); # Return line numbers, not indices
- my $chunk_count = $diff->Next(-1); # Compute the amount of chuncks
- return "" if ($chunk_count == 1 && $diff->Same());
- $diff->Reset();
- while( $diff->Next() ) {
- my @same = $diff->Same();
- if ($diff->Same() ) {
- if ($diff->Next(0) > 1) { # not first chunk: print 2 first lines
- $res .= ' '.$same[0]."\n" ;
- $res .= ' '.$same[1]."\n" if (scalar @same>1);
- }
- $res .= "...\n" if (scalar @same>2);
-# $res .= $diff->Next(0)."/$chunk_count\n";
- if ($diff->Next(0) < $chunk_count) { # not last chunk: print 2 last lines
- $res .= ' '.$same[scalar @same -2]."\n" if (scalar @same>1);
- $res .= ' '.$same[scalar @same -1]."\n";
- }
+ my $res;
+ my $diff = Diff->new(@_);
+
+ $diff->Base(1); # Return line numbers, not indices
+ my $chunk_count = $diff->Next(-1); # Compute the amount of chuncks
+ return "" if ( $chunk_count == 1 && $diff->Same() );
+ $diff->Reset();
+ while ( $diff->Next() ) {
+ my @same = $diff->Same();
+ if ( $diff->Same() ) {
+ if ( $diff->Next(0) > 1 ) { # not first chunk: print 2 first lines
+ $res .= ' ' . $same[0] . "\n";
+ $res .= ' ' . $same[1] . "\n" if ( scalar @same > 1 );
+ }
+ $res .= "...\n" if ( scalar @same > 2 );
+
+ # $res .= $diff->Next(0)."/$chunk_count\n";
+ if ( $diff->Next(0) < $chunk_count ) { # not last chunk: print 2 last lines
+ $res .= ' ' . $same[ scalar @same - 2 ] . "\n"
+ if ( scalar @same > 1 );
+ $res .= ' ' . $same[ scalar @same - 1 ] . "\n";
+ }
+ }
+ next if $diff->Same();
+ map { $res .= "- $_\n" } $diff->Items(1);
+ map { $res .= "+ $_\n" } $diff->Items(2);
}
- next if $diff->Same();
- map { $res .= "- $_\n" } $diff->Items(1);
- map { $res .= "+ $_\n" } $diff->Items(2);
- }
- return $res;
+ return $res;
+}
+
+# Helper function replacing any occurence of variable '$name' by its '$value'
+# As in Bash, ${$value:=BLABLA} is rewritten to $value if set or to BLABLA if $value is not set
+sub var_subst {
+ my ( $text, $name, $value ) = @_;
+ if ($value) {
+ $text =~ s/\$\{$name(?::[=-][^}]*)?\}/$value/g;
+ $text =~ s/\$$name(\W|$)/$value$1/g;
+ } else {
+ $text =~ s/\$\{$name:=([^}]*)\}/$1/g;
+ $text =~ s/\$\{$name\}//g;
+ $text =~ s/\$$name(\W|$)/$1/g;
+ }
+ return $text;
}
+################################ The possible commands ################################
+sub mkfile_cmd($) {
+ my %cmd = %{ $_[0] };
+ my $file = $cmd{'arg'};
+ print STDERR "[Tesh/INFO] mkfile $file. Ctn: >>".join( '\n', @{ $cmd{'in'} })."<<\n"
+ if $opts{'debug'};
+
+ unlink($file);
+ open( FILE, ">$file" )
+ or die "[Tesh/CRITICAL] Unable to create file $file: $!\n";
+ print FILE join( "\n", @{ $cmd{'in'} } );
+ print FILE "\n" if ( scalar @{ $cmd{'in'} } > 0 );
+ close(FILE);
+}
+
+# Command CD. Just change to the provided directory
+sub cd_cmd($) {
+ my $directory = shift;
+ my $failure = 1;
+ if ( -e $directory && -d $directory ) {
+ chdir("$directory");
+ print "[Tesh/INFO] change directory to $directory\n";
+ $failure = 0;
+ } elsif ( -e $directory ) {
+ print "Cannot change directory to '$directory': it is not a directory\n";
+ } else {
+ print "Chdir to $directory failed: No such file or directory\n";
+ }
+ if ( $failure == 1 ) {
+ print "Test suite `$tesh_name': NOK (system error)\n";
+ exit 4;
+ }
+}
+
+# Command setenv. Gets "variable=content", and update the environment accordingly
+sub setenv_cmd($) {
+ my $arg = shift;
+ if ( $arg =~ /^(.*?)=(.*)$/ ) {
+ my ( $var, $ctn ) = ( $1, $2 );
+ print "[Tesh/INFO] setenv $var=$ctn\n";
+ $environ{$var} = $ctn;
+ $ENV{$var} = $ctn;
+ } else {
+ die "[Tesh/CRITICAL] Malformed argument to setenv: expected 'name=value' but got '$arg'\n";
+ }
+}
