diff options
| -rwxr-xr-x | tests/misc/head-elide-tail | 72 |
1 files changed, 51 insertions, 21 deletions
diff --git a/tests/misc/head-elide-tail b/tests/misc/head-elide-tail index 43d39b2b1..7d29f98a0 100755 --- a/tests/misc/head-elide-tail +++ b/tests/misc/head-elide-tail @@ -29,41 +29,71 @@ my $READ_BUFSIZE = 4096; my @Tests = ( # Elide the exact size of the file. - ['elide-1', "--bytes=-2", {IN=>"a\n"}, {OUT=>''}], + ['elide-b1', "--bytes=-2", {IN=>"a\n"}, {OUT=>''}], # Elide more than the size of the file. - ['elide-2', "--bytes=-2", {IN=>"a"}, {OUT=>''}], + ['elide-b2', "--bytes=-2", {IN=>"a"}, {OUT=>''}], # Leave just one byte. - ['elide-3', "--bytes=-2", {IN=>"abc"}, {OUT=>'a'}], + ['elide-b3', "--bytes=-2", {IN=>"abc"}, {OUT=>'a'}], # Make it so the elided bytes straddle the end of the first # $READ_BUFSIZE block. - ['elide-4', "--bytes=-2", + ['elide-b4', "--bytes=-2", {IN=> 'a' x ($READ_BUFSIZE-3) . "\nbcd"}, {OUT=>'a' x ($READ_BUFSIZE-3) . "\nb"}], # Make it so the elided bytes straddle the end of the 2nd # $READ_BUFSIZE block. - ['elide-5', "--bytes=-2", + ['elide-b5', "--bytes=-2", {IN=> 'a' x (2 * $READ_BUFSIZE - 2) . 'bcd'}, {OUT=>'a' x (2 * $READ_BUFSIZE - 2) . 'b'}], + + ['elide-l0', "--lines=-1", {IN=>''}, {OUT=>''}], + ['elide-l1', "--lines=-1", {IN=>"a\n"}, {OUT=>''}], + ['elide-l2', "--lines=-1", {IN=>"a"}, {OUT=>''}], + ['elide-l3', "--lines=-1", {IN=>"a\nb"}, {OUT=>"a\n"}], + ['elide-l4', "--lines=-1", {IN=>"a\nb\n"}, {OUT=>"a\n"}], ); -# Brute force: use all combinations of file sizes [0..20] and -# number of bytes to elide [0..20]. -my $s = "abcdefghijklmnopqrst"; -for my $file_size (0..20) +if ($ENV{RUN_EXPENSIVE_TESTS}) { - for my $n_elide (0..20) + # Brute force: use all combinations of file sizes [0..20] and + # number of bytes to elide [0..20]. For better coverage, recompile + # head with -DHEAD_TAIL_PIPE_READ_BUFSIZE=4 and + # -DHEAD_TAIL_PIPE_BYTECOUNT_THRESHOLD=8 + my $s = "abcdefghijklmnopqrst"; + for my $file_size (0..20) + { + for my $n_elide (0..20) + { + my $input = substr $s, 0, $file_size; + my $out_len = $n_elide < $file_size ? $file_size - $n_elide : 0; + my $output = substr $input, 0, $out_len; + my $t = ["elideb$file_size-$n_elide", "--bytes=-$n_elide", + {IN=>$input}, {OUT=>$output}]; + push @Tests, $t; + my @u = @$t; + # Insert the --presume-input-pipe option. + $u[0] .= 'p'; + $u[1] .= ' --presume-input-pipe'; + push @Tests, \@u; + } + } + + $s =~ s/(.)/$1\n/g; + for my $file_size (0..20) { - my $input = substr $s, 0, $file_size; - my $out_len = $n_elide < $file_size ? $file_size - $n_elide : 0; - my $output = substr $input, 0, $out_len; - my $t = ["elide-$file_size-$n_elide", "--bytes=-$n_elide", - {IN=>$input}, {OUT=>$output}]; - push @Tests, $t; - my @u = @$t; - # Insert the --presume-input-pipe option. - $u[0] .= 'p'; - $u[1] .= ' --presume-input-pipe'; - push @Tests, \@u; + for my $n_elide (0..20) + { + my $input = substr $s, 0, 2 * $file_size; + my $out_len = $n_elide < $file_size ? $file_size - $n_elide : 0; + my $output = substr $input, 0, 2 * $out_len; + my $t = ["elidel$file_size-$n_elide", "--lines=-$n_elide", + {IN=>$input}, {OUT=>$output}]; + push @Tests, $t; + my @u = @$t; + # Insert the --presume-input-pipe option. + $u[0] .= 'p'; + $u[1] .= ' --presume-input-pipe'; + push @Tests, \@u; + } } } |