mirror of
https://github.com/coreutils/coreutils.git
synced 2024-12-21 07:48:04 +08:00
346 lines
8.9 KiB
Perl
Executable File
346 lines
8.9 KiB
Perl
Executable File
#! /usr/bin/perl -w
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# -*- perl -*-
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my $In = '.I';
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my $Out = '.O';
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my $Exp = '.X';
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my $Err = '.E';
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require 5.002;
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use strict;
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use POSIX qw (assert);
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(my $program_name = $0) =~ s|.*/||;
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BEGIN { push @INC, '.' if '.' ne '.'; }
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use Test;
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my $srcdir = shift;
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sub validate
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{
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my %seen;
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my $test_vector;
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foreach $test_vector (Test::test_vector ())
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{
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my ($test_name, $flags, $in_spec, $expected, $e_ret_code, $rest) =
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@$test_vector;
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die "$0: wrong number of elements in test $test_name\n"
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if (!defined $e_ret_code || defined $rest);
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assert (!ref $test_name);
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assert (!ref $flags);
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assert (!ref $e_ret_code);
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die "$0: duplicate test name \`$test_name'\n"
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if (defined $seen{$test_name});
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$seen{$test_name} = 1;
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}
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}
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# Given a spec for the input file(s) or expected output file of a single
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# test, create a file for any string. A file is created for each literal
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# string -- not for named files. Whether a perl `string' is treated as
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# a string to be put in a file for a test or the name of an existing file
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# depends on how many references have to be traversed to get from
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# the top level variable to the actual string literal.
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# If $SPEC is a literal Perl string (not a reference), then treat $SPEC
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# as the contents of a file.
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# If $SPEC is a hash reference, then there are no inputs.
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# If $SPEC is an array reference, consider each element of the array.
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# If the element is a string reference, treat the string as the name of
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# an existing file. Otherwise, the element must be a string and is treated
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# just like a scalar $SPEC. When a file is created, its name is derived
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# from the name TEST_NAME of the corresponding test and the TYPE of file.
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# E.g., the inputs for test `3a' would be named t3a.in1 and t3a.in2, and
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# the expected output for test `7c' would be named t7c.exp.
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#
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# Also, return two lists of file names:
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# - maintainer-generated files -- names of files created by this function
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# - files named explicitly in Test.pm
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sub spec_to_list ($$$)
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{
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my ($spec, $test_name, $type) = @_;
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assert ($type eq $In || $type eq $Exp);
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my @explicit_file;
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my @maint_gen_file;
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my @content_string;
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# If SPEC is a hash reference, return empty lists.
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if (ref $spec eq 'HASH')
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{
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assert ($type eq $In);
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return {
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EXPLICIT => \@explicit_file,
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MAINT_GEN => \@maint_gen_file
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};
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}
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if (ref $spec)
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{
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assert (ref $spec eq 'ARRAY' || ref $spec eq 'HASH');
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my $file_spec;
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foreach $file_spec (@$spec)
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{
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# A file spec may be a string or a reference.
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# If it's a string, that string is to be the contents of a
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# generated (by this script) file with name derived from the
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# name of this test.
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# If it's a reference, then it must be the name of an existing
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# file.
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if (ref $file_spec)
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{
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my $r = ref $file_spec;
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die "bad test: $test_name is $r\n"
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if ref $file_spec ne 'SCALAR';
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my $existing_file = $$file_spec;
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# FIXME: make sure $existing_file exists somewhere.
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push (@explicit_file, $existing_file);
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}
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else
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{
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push (@content_string, $file_spec);
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}
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}
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}
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else
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{
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push (@content_string, $spec);
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}
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my $i = 1;
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my $file_contents;
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foreach $file_contents (@content_string)
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{
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my $suffix = (@content_string > 1 ? $i : '');
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my $maint_gen_file = "$test_name$type$suffix";
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push (@maint_gen_file, $maint_gen_file);
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open (F, ">$srcdir/$maint_gen_file") || die "$0: $maint_gen_file: $!\n";
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print F $file_contents;
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close (F) || die "$0: $maint_gen_file: $!\n";
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++$i;
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}
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my $n_fail = 0;
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foreach $i (@explicit_file, @maint_gen_file)
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{
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my $max_len = 14;
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if (length ($i) > $max_len)
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{
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warn "$0: $i: generated test file name would be longer than"
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. " $max_len characters\n";
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++$n_fail;
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}
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}
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exit (1) if $n_fail;
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my %h = (
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EXPLICIT => \@explicit_file,
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MAINT_GEN => \@maint_gen_file
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);
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return \%h;
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}
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sub wrap
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{
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my ($preferred_line_len, @tok) = @_;
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assert ($preferred_line_len > 0);
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my @lines;
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my $line = '';
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my $word;
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foreach $word (@tok)
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{
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if ($line && length ($line) + 1 + length ($word) > $preferred_line_len)
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{
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push (@lines, $line);
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$line = $word;
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next;
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}
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my $sp = ($line ? ' ' : '');
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$line .= "$sp$word";
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}
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push (@lines, $line);
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return @lines;
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}
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# ~~~~~~~ main ~~~~~~~~
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{
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$| = 1;
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die "Usage: $0: srcdir program-name\n" if @ARGV != 1;
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my $xx = $ARGV[0];
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if ($xx eq '--list')
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{
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validate ();
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# Output three lists of files:
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# EXPLICIT -- file names specified in Test.pm
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# MAINT_GEN -- maintainer-generated files
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# RUN_GEN -- files created when running the tests
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my $test_vector;
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my @exp;
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my @maint;
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my @run;
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foreach $test_vector (Test::test_vector ())
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{
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my ($test_name, $flags, $in_spec, $exp_spec, $e_ret_code)
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= @$test_vector;
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push (@run, ("$test_name$Out", "$test_name$Err"));
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my $in = spec_to_list ($in_spec, $test_name, $In);
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push (@exp, @{$in->{EXPLICIT}});
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push (@maint, @{$in->{MAINT_GEN}});
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my $e = spec_to_list ($exp_spec, $test_name, $Exp);
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push (@exp, @{$e->{EXPLICIT}});
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push (@maint, @{$e->{MAINT_GEN}});
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}
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# The list of explicitly mentioned files may contain duplicates.
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# Eliminated any duplicates.
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my %e = map {$_ => 1} @exp;
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@exp = sort keys %e;
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my $len = 77;
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print join (" \\\n", wrap ($len, 'explicit =', @exp)), "\n";
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print join (" \\\n", wrap ($len, 'maint_gen =', @maint)), "\n";
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print join (" \\\n", wrap ($len, 'run_gen =', @run)), "\n";
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exit 0;
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}
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print <<EOF1;
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#! /bin/sh
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# This script was generated automatically by $program_name.
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case \$# in
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0\) xx='$xx';;
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*\) xx="\$1";;
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esac
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test "\$VERBOSE" && echo=echo || echo=:
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\$echo testing program: \$xx
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errors=0
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test "\$srcdir" || srcdir=.
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test "\$VERBOSE" && \$xx --version 2> /dev/null
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# Make sure we get English translations.
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LANGUAGE=C
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export LANGUAGE
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LC_ALL=C
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export LC_ALL
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LANG=C
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export LANG
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EOF1
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validate ();
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my $n_tests = 0;
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my $test_vector;
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foreach $test_vector (Test::test_vector ())
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{
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my ($test_name, $flags, $in_spec, $exp_spec, $e_ret_code)
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= @$test_vector;
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my $in = spec_to_list ($in_spec, $test_name, $In);
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my @srcdir_rel_in_file;
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my $f;
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foreach $f (@{$in->{EXPLICIT}}, @{$in->{MAINT_GEN}})
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{
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push (@srcdir_rel_in_file, "\$srcdir/$f");
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}
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my $exp = spec_to_list ($exp_spec, $test_name, $Exp);
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my @all = (@{$exp->{EXPLICIT}}, @{$exp->{MAINT_GEN}});
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assert (@all == 1);
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my $exp_name = "\$srcdir/$all[0]";
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my $out = "$test_name$Out";
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my $err_output = "$test_name$Err";
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my %valid_via = map {$_ => 1} qw (REDIR FILE PIPE);
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my %via_msg_string = (REDIR => '<', FILE => 'F', PIPE => '|');
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# Inhibit warnings about `used only once'.
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die if 0 && $Test::input_via{$test_name} && $Test::input_via_default;
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die if 0 && $Test::env{$test_name} && $Test::env_default;
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my $vias = $Test::input_via{$test_name} || $Test::input_via_default
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|| {FILE => 0};
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my $n_vias = keys %$vias;
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my $via;
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foreach $via (sort keys %$vias)
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{
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my $cmd;
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my $val = $vias->{$via};
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my $via_msg = ($n_vias == 1 ? '' : $via_msg_string{$via});
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my $file_args = join (' ', @srcdir_rel_in_file);
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my $env = $Test::env{$test_name} || $Test::env_default || [''];
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@$env == 1
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or die "$program_name: unexpected environment: @$env\n";
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$env = $env->[0];
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my $env_prefix = ($env ? "$env " : '');
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if ($via eq 'FILE')
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{
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$cmd = "$env_prefix\$xx $flags $file_args > $out 2> $err_output";
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}
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elsif ($via eq 'PIPE')
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{
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$via_msg = "|$val" if $val;
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$val ||= 'cat';
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$cmd = "$val $file_args | $env_prefix\$xx $flags"
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. " > $out 2> $err_output";
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}
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else
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{
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assert (@srcdir_rel_in_file == 1);
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$cmd = "$env_prefix\$xx $flags"
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. " < $file_args > $out 2> $err_output";
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}
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my $e = $env;
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my $sep = ($via_msg && $e ? ':' : '');
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my $msg = "$e$sep$via_msg";
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$msg = "($msg)" if $msg;
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my $t_name = "$test_name$msg";
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++$n_tests;
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print <<EOF;
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$cmd
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code=\$?
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if test \$code != $e_ret_code; then
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\$echo "Test $t_name failed: \$xx return code \$code differs from expected value $e_ret_code" 1>&2
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errors=`expr \$errors + 1`
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else
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cmp $out $exp_name > /dev/null 2>&1
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case \$? in
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0) if test "\$VERBOSE"; then \$echo "passed $t_name"; fi;;
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1) \$echo "Test $t_name failed: files $out and $exp_name differ" 1>&2
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(diff -c $out $exp_name) 2> /dev/null
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errors=`expr \$errors + 1`;;
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2) \$echo "Test $t_name may have failed." 1>&2
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\$echo The command \"cmp $out $exp_name\" failed. 1>&2
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errors=`expr \$errors + 1`;;
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esac
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fi
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test -s $err_output || rm -f $err_output
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EOF
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}
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}
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print <<EOF3
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if test \$errors = 0; then
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\$echo Passed all $n_tests tests. 1>&2
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else
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\$echo Failed \$errors tests. 1>&2
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fi
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test \$errors = 0 || errors=1
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exit \$errors
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EOF3
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}
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