summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rwxr-xr-xtests/misc/head-elide-tail72
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;
+ }
}
}