660 lines
22 KiB
Perl
660 lines
22 KiB
Perl
#!./perl -w
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BEGIN {
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chdir 't' if -d 't';
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@INC = ('../lib');
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}
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use warnings;
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use strict;
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our ($foo, $bar, $baz, $ballast);
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use Test::More;
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use Benchmark qw(:all);
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my $DELTA = 0.4;
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# Some timing ballast
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sub fib {
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my $n = shift;
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return $n if $n < 2;
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fib($n-1) + fib($n-2);
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}
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$ballast = 15;
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my $All_Pattern =
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qr/(\d+) +wallclock secs? +\( *(-?\d+\.\d\d) +usr +(-?\d+\.\d\d) +sys +\+ +(-?\d+\.\d\d) +cusr +(-?\d+\.\d\d) +csys += +(-?\d+\.\d\d) +CPU\)/;
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my $Noc_Pattern =
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qr/(\d+) +wallclock secs? +\( *(-?\d+\.\d\d) +usr +\+ +(-?\d+\.\d\d) +sys += +(-?\d+\.\d\d) +CPU\)/;
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my $Nop_Pattern =
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qr/(\d+) +wallclock secs? +\( *(-?\d+\.\d\d) +cusr +\+ +(-?\d+\.\d\d) +csys += +\d+\.\d\d +CPU\)/;
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# Please don't trust the matching parentheses to be useful in this :-)
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my $Default_Pattern = qr/$All_Pattern|$Noc_Pattern/;
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# see if the ratio of two integer values is within (1+$delta)
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sub cmp_delta {
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my ($min, $max, $delta) = @_;
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($min, $max) = ($max, $min) if $max < $min;
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return 0 if $min < 1; # avoid / 0
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return $max/$min <= (1+$delta);
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}
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my $t0 = new Benchmark;
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isa_ok ($t0, 'Benchmark', "Ensure we can create a benchmark object");
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# We use the benchmark object once we've done some work:
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isa_ok(timeit(5, sub {++$foo}), 'Benchmark', "timeit CODEREF");
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is ($foo, 5, "benchmarked code was run 5 times");
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isa_ok(timeit(5, '++$bar'), 'Benchmark', "timeit eval");
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is ($bar, 5, "benchmarked code was run 5 times");
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# is coderef called with spurious arguments?
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timeit( 1, sub { $foo = @_ });
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is ($foo, 0, "benchmarked code called without arguments");
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print "# Burning CPU to benchmark things; will take time...\n";
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# We need to do something fairly slow in the coderef.
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# Same coderef. Same place in memory.
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my $coderef = sub {$baz += fib($ballast)};
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# The default is three.
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$baz = 0;
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my $threesecs = countit(0, $coderef);
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isa_ok($threesecs, 'Benchmark', "countit 0, CODEREF");
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isnt ($baz, 0, "benchmarked code was run");
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my $in_threesecs = $threesecs->iters;
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print "# in_threesecs=$in_threesecs iterations\n";
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cmp_ok($in_threesecs, '>', 0, "iters returned positive iterations");
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my $cpu3 = $threesecs->[1]; # user
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my $sys3 = $threesecs->[2]; # sys
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cmp_ok($cpu3+$sys3, '>=', 3.0, "3s cpu3 is at least 3s");
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my $in_threesecs_adj = $in_threesecs;
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$in_threesecs_adj *= (3/$cpu3); # adjust because may not have run for exactly 3s
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print "# in_threesecs_adj=$in_threesecs_adj adjusted iterations\n";
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my $estimate = int (100 * $in_threesecs_adj / 3) / 100;
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print "# from the 3 second run estimate $estimate iterations in 1 second...\n";
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$baz = 0;
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my $onesec = countit(1, $coderef);
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isa_ok($onesec, 'Benchmark', "countit 1, CODEREF");
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isnt ($baz, 0, "benchmarked code was run");
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my $in_onesec = $onesec->iters;
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print "# in_onesec=$in_onesec iterations\n";
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cmp_ok($in_onesec, '>', 0, "iters returned positive iterations");
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my $cpu1 = $onesec->[1]; # user
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my $sys1 = $onesec->[2]; # sys
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cmp_ok($cpu1+$sys1, '>=', 1.0, "is cpu1 is at least 1s");
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my $in_onesec_adj = $in_onesec;
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$in_onesec_adj *= (1/$cpu1); # adjust because may not have run for exactly 1s
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print "# in_onesec_adj=$in_onesec_adj adjusted iterations\n";
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# I found that the eval'ed version was 3 times faster than the coderef.
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# (now it has a different ballast value)
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$baz = 0;
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my $again = countit(1, '$baz += fib($ballast)');
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isa_ok($onesec, 'Benchmark', "countit 1, eval");
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isnt ($baz, 0, "benchmarked code was run");
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my $in_again = $again->iters;
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print "# $in_again iterations\n";
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cmp_ok($in_again, '>', 0, "iters returned positive iterations");
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my $t1 = new Benchmark;
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isa_ok ($t1, 'Benchmark', "Create another benchmark object now we're finished");
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my $diff = timediff ($t1, $t0);
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isa_ok ($diff, 'Benchmark', "Get the time difference");
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isa_ok (timesum ($t0, $t1), 'Benchmark', "check timesum");
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my $default = timestr ($diff);
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isnt ($default, '', 'timestr ($diff)');
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my $auto = timestr ($diff, 'auto');
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is ($auto, $default, 'timestr ($diff, "auto") matches timestr ($diff)');
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{
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my $all = timestr ($diff, 'all');
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like ($all, $All_Pattern, 'timestr ($diff, "all")');
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print "# $all\n";
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my ($wallclock, $usr, $sys, $cusr, $csys, $cpu) = $all =~ $All_Pattern;
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is (timestr ($diff, 'none'), '', "none suppresses output");
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my $noc = timestr ($diff, 'noc');
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like ($noc, qr/$wallclock +wallclock secs? +\( *$usr +usr +\+ +$sys +sys += +\d+\.\d\d +CPU\)/, 'timestr ($diff, "noc")');
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my $nop = timestr ($diff, 'nop');
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like ($nop, qr/$wallclock +wallclock secs? +\( *$cusr +cusr +\+ +$csys +csys += +\d+\.\d\d +CPU\)/, 'timestr ($diff, "nop")');
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if ($auto eq $noc) {
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pass ('"auto" is "noc"');
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} else {
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is ($auto, $all, '"auto" isn\'t "noc", so should be eq to "all"');
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}
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like (timestr ($diff, 'all', 'E'),
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qr/(\d+) +wallclock secs? +\( *\d\.\d+E[-+]?\d\d\d? +usr +\d\.\d+E[-+]?\d\d\d? +sys +\+ +\d\.\d+E[-+]?\d\d\d? +cusr +\d\.\d+E[-+]?\d\d\d? +csys += +\d\.\d+E[-+]?\d\d\d? +CPU\)/, 'timestr ($diff, "all", "E") [sprintf format of "E"]');
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}
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my $out = tie *OUT, 'TieOut';
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my $iterations = 100;
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$foo = 0;
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select(OUT);
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my $got = timethis($iterations, sub {++$foo});
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select(STDOUT);
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isa_ok($got, 'Benchmark', "timethis CODEREF");
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is ($foo, $iterations, "benchmarked code was run $iterations times");
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$got = $out->read();
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like ($got, qr/^timethis $iterations/, 'default title');
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like ($got, $Default_Pattern, 'default format is all or noc');
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$bar = 0;
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select(OUT);
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$got = timethis($iterations, '++$bar');
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select(STDOUT);
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isa_ok($got, 'Benchmark', "timethis eval");
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is ($bar, $iterations, "benchmarked code was run $iterations times");
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$got = $out->read();
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like ($got, qr/^timethis $iterations/, 'default title');
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like ($got, $Default_Pattern, 'default format is all or noc');
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my $title = 'lies, damn lies and benchmarks';
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$foo = 0;
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select(OUT);
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$got = timethis($iterations, sub {++$foo}, $title);
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select(STDOUT);
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isa_ok($got, 'Benchmark', "timethis with title");
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is ($foo, $iterations, "benchmarked code was run $iterations times");
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$got = $out->read();
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like ($got, qr/^$title:/, 'specify title');
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like ($got, $Default_Pattern, 'default format is all or noc');
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# default is auto, which is all or noc. nop can never match the default
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$foo = 0;
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select(OUT);
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$got = timethis($iterations, sub {++$foo}, $title, 'nop');
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select(STDOUT);
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isa_ok($got, 'Benchmark', "timethis with format");
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is ($foo, $iterations, "benchmarked code was run $iterations times");
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$got = $out->read();
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like ($got, qr/^$title:/, 'specify title');
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like ($got, $Nop_Pattern, 'specify format as nop');
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{
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$foo = 0;
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select(OUT);
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my $start = time;
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$got = timethis(-2, sub {$foo+= fib($ballast)}, $title, 'none');
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my $end = time;
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select(STDOUT);
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isa_ok($got, 'Benchmark',
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"timethis, at least 2 seconds with format 'none'");
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cmp_ok($foo, '>', 0, "benchmarked code was run");
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cmp_ok($end - $start, '>', 1, "benchmarked code ran for over 1 second");
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$got = $out->read();
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# Remove any warnings about having too few iterations.
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$got =~ s/\(warning:[^\)]+\)//gs;
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$got =~ s/^[ \t\n]+//s; # Remove all the whitespace from the beginning
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is ($got, '', "format 'none' should suppress output");
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}
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$foo = $bar = $baz = 0;
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select(OUT);
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$got = timethese($iterations, { Foo => sub {++$foo}, Bar => '++$bar',
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Baz => sub {++$baz} });
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select(STDOUT);
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is(ref ($got), 'HASH', "timethese should return a hashref");
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isa_ok($got->{Foo}, 'Benchmark', "Foo value");
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isa_ok($got->{Bar}, 'Benchmark', "Bar value");
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isa_ok($got->{Baz}, 'Benchmark', "Baz value");
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is_deeply([sort keys %$got], [sort qw(Foo Bar Baz)], 'should be exactly three objects');
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is ($foo, $iterations, "Foo code was run $iterations times");
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is ($bar, $iterations, "Bar code was run $iterations times");
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is ($baz, $iterations, "Baz code was run $iterations times");
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$got = $out->read();
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# Remove any warnings about having too few iterations.
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$got =~ s/\(warning:[^\)]+\)//gs;
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like ($got, qr/timing $iterations iterations of\s+Bar\W+Baz\W+Foo\W*?\.\.\./s,
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'check title');
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# Remove the title
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$got =~ s/.*\.\.\.//s;
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like ($got, qr/\bBar\b.*\bBaz\b.*\bFoo\b/s, 'check output is in sorted order');
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like ($got, $Default_Pattern, 'should find default format somewhere');
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{ # ensure 'use strict' does not leak from Benchmark.pm into benchmarked code
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no strict;
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select OUT;
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eval {
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timethese( 1,
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{ undeclared_var => q{ $i++; $i-- },
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symbolic_ref => q{ $bar = 42;
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$foo = 'bar';
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$q = ${$foo} },
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},
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'none'
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);
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};
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is( $@, '', q{no strict leakage in name => 'code'} );
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eval {
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timethese( 1,
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{ undeclared_var => sub { $i++; $i-- },
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symbolic_ref => sub { $bar = 42;
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$foo = 'bar';
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return ${$foo} },
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},
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'none'
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);
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};
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is( $@, '', q{no strict leakage in name => sub { code }} );
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# clear out buffer
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$out->read;
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}
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my $code_to_test = { Foo => sub {$foo+=fib($ballast-2)},
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Bar => sub {$bar+=fib($ballast)}};
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# Keep these for later.
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my $results;
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{
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$foo = $bar = 0;
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select(OUT);
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my $start = times;
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$results = timethese(-0.1, $code_to_test, 'none');
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my $end = times;
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select(STDOUT);
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is(ref ($results), 'HASH', "timethese should return a hashref");
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isa_ok($results->{Foo}, 'Benchmark', "Foo value");
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isa_ok($results->{Bar}, 'Benchmark', "Bar value");
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is_deeply([sort keys %$results], [sort qw(Foo Bar)], 'should be exactly two objects');
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cmp_ok($foo, '>', 0, "Foo code was run");
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cmp_ok($bar, '>', 0, "Bar code was run");
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cmp_ok($end-$start, '>', 0.1, "benchmarked code ran for over 0.1 seconds");
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$got = $out->read();
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# Remove any warnings about having too few iterations.
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$got =~ s/\(warning:[^\)]+\)//gs;
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is ($got =~ tr/ \t\n//c, 0, "format 'none' should suppress output");
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}
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my $graph_dissassembly =
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qr!^[ \t]+(\S+)[ \t]+(\w+)[ \t]+(\w+)[ \t]* # Title line
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\n[ \t]*(\w+)[ \t]+([0-9.]+(?:/s)?)[ \t]+(-+)[ \t]+(-?\d+%)[ \t]*
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\n[ \t]*(\w+)[ \t]+([0-9.]+(?:/s)?)[ \t]+(-?\d+%)[ \t]+(-+)[ \t]*$!xm;
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sub check_graph_consistency {
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my ( $ratetext, $slowc, $fastc,
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$slowr, $slowratet, $slowslow, $slowfastt,
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$fastr, $fastratet, $fastslowt, $fastfast)
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= @_;
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note("calling check_graph_consistency from line " . (caller(1))[2]);
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my $all_passed = 1;
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$all_passed
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&= is ($slowc, $slowr, "left col tag should be top row tag");
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$all_passed
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&= is ($fastc, $fastr, "right col tag should be bottom row tag");
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$all_passed &=
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like ($slowslow, qr/^-+/, "should be dash for comparing slow with slow");
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$all_passed
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&= is ($slowslow, $fastfast, "slow v slow should be same as fast v fast");
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my $slowrate = $slowratet;
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my $fastrate = $fastratet;
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my ($slow_is_rate, $fast_is_rate);
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unless ($slow_is_rate = $slowrate =~ s!/s!!) {
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# Slow is expressed as iters per second.
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$slowrate = 1/$slowrate if $slowrate;
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}
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unless ($fast_is_rate = $fastrate =~ s!/s!!) {
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# Fast is expressed as iters per second.
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$fastrate = 1/$fastrate if $fastrate;
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}
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if ($ratetext =~ /rate/i) {
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$all_passed
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&= ok ($slow_is_rate, "slow should be expressed as a rate");
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$all_passed
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&= ok ($fast_is_rate, "fast should be expressed as a rate");
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} else {
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$all_passed &=
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ok (!$slow_is_rate, "slow should be expressed as a iters per second");
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$all_passed &=
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ok (!$fast_is_rate, "fast should be expressed as a iters per second");
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}
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(my $slowfast = $slowfastt) =~ s!%!!;
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(my $fastslow = $fastslowt) =~ s!%!!;
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if ($slowrate < $fastrate) {
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pass ("slow rate is less than fast rate");
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unless (ok ($slowfast <= 0 && $slowfast >= -100,
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"slowfast should be less than or equal to zero, and >= -100")) {
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diag("slowfast=$slowfast");
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$all_passed = 0;
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}
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unless (cmp_ok($fastslow, '>', 0, "fastslow should be > 0")) {
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$all_passed = 0;
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}
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} else {
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$all_passed
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&= is ($slowrate, $fastrate,
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"slow rate isn't less than fast rate, so should be the same");
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# In OpenBSD the $slowfast is sometimes a really, really, really
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# small number less than zero, and this gets stringified as -0.
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$all_passed
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&= like ($slowfast, qr/^-?0$/, "slowfast should be zero");
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$all_passed
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&= like ($fastslow, qr/^-?0$/, "fastslow should be zero");
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}
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return $all_passed;
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}
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sub check_graph_vs_output {
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my ($chart, $got) = @_;
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my ( $ratetext, $slowc, $fastc,
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$slowr, $slowratet, $slowslow, $slowfastt,
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$fastr, $fastratet, $fastslowt, $fastfast)
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= $got =~ $graph_dissassembly;
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my $all_passed
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= check_graph_consistency ( $ratetext, $slowc, $fastc,
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$slowr, $slowratet, $slowslow, $slowfastt,
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$fastr, $fastratet, $fastslowt, $fastfast);
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$all_passed
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&= is_deeply ($chart, [['', $ratetext, $slowc, $fastc],
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[$slowr, $slowratet, $slowslow, $slowfastt],
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[$fastr, $fastratet, $fastslowt, $fastfast]],
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"check the chart layout matches the formatted output");
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unless ($all_passed) {
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diag("Something went wrong there. I got this chart:\n$got");
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}
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}
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sub check_graph {
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my ($title, $row1, $row2) = @_;
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is (scalar @$title, 4, "Four entries in title row");
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is (scalar @$row1, 4, "Four entries in first row");
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is (scalar @$row2, 4, "Four entries in second row");
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is (shift @$title, '', "First entry of output graph should be ''");
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check_graph_consistency (@$title, @$row1, @$row2);
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}
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{
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select(OUT);
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my $start = times;
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my $chart = cmpthese( -0.1, { a => "\$i = sqrt(\$i++) * sqrt(\$i) for 1..10",
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b => "\$i = sqrt(\$i++)",
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}, "auto" ) ;
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my $end = times;
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select(STDOUT);
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cmp_ok($end - $start, '>', 0.05,
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"benchmarked code ran for over 0.05 seconds");
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$got = $out->read();
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# Remove any warnings about having too few iterations.
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$got =~ s/\(warning:[^\)]+\)//gs;
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like ($got, qr/running\W+a\W+b.*?for at least 0\.1 CPU second/s,
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'check title');
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# Remove the title
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$got =~ s/.*\.\.\.//s;
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like ($got, $Default_Pattern, 'should find default format somewhere');
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like ($got, $graph_dissassembly, "Should find the output graph somewhere");
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check_graph_vs_output ($chart, $got);
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}
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# Not giving auto should suppress timethese results.
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{
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select(OUT);
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my $start = times;
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my $chart = cmpthese( -0.1, { a => "\$i = sqrt(\$i++) * sqrt(\$i) for 1..10",
|
|
b => "\$i = sqrt(\$i++)" });
|
|
my $end = times;
|
|
select(STDOUT);
|
|
cmp_ok($end - $start, '>', 0.05,
|
|
"benchmarked code ran for over 0.05 seconds");
|
|
|
|
$got = $out->read();
|
|
# Remove any warnings about having too few iterations.
|
|
$got =~ s/\(warning:[^\)]+\)//gs;
|
|
|
|
unlike ($got, qr/running\W+a\W+b.*?for at least 0\.1 CPU second/s,
|
|
'should not have title');
|
|
# Remove the title
|
|
$got =~ s/.*\.\.\.//s;
|
|
unlike ($got, $Default_Pattern, 'should not find default format somewhere');
|
|
like ($got, $graph_dissassembly, "Should find the output graph somewhere");
|
|
check_graph_vs_output ($chart, $got);
|
|
}
|
|
|
|
{
|
|
$foo = $bar = 0;
|
|
select(OUT);
|
|
my $chart = cmpthese($iterations, $code_to_test, 'nop' ) ;
|
|
select(STDOUT);
|
|
cmp_ok($foo, '>', 0, "Foo code was run");
|
|
cmp_ok($bar, '>', 0, "Bar code was run");
|
|
|
|
$got = $out->read();
|
|
# Remove any warnings about having too few iterations.
|
|
$got =~ s/\(warning:[^\)]+\)//gs;
|
|
like ($got, qr/timing $iterations iterations of\s+Bar\W+Foo\W*?\.\.\./s,
|
|
'check title');
|
|
# Remove the title
|
|
$got =~ s/.*\.\.\.//s;
|
|
like ($got, $Nop_Pattern, 'specify format as nop');
|
|
like ($got, $graph_dissassembly, "Should find the output graph somewhere");
|
|
check_graph_vs_output ($chart, $got);
|
|
}
|
|
|
|
{
|
|
$foo = $bar = 0;
|
|
select(OUT);
|
|
my $chart = cmpthese($iterations, $code_to_test, 'none' ) ;
|
|
select(STDOUT);
|
|
cmp_ok($foo, '>', 0, "Foo code was run");
|
|
cmp_ok($bar, '>', 0, "Bar code was run");
|
|
|
|
$got = $out->read();
|
|
# Remove any warnings about having too few iterations.
|
|
$got =~ s/\(warning:[^\)]+\)//gs;
|
|
$got =~ s/^[ \t\n]+//s; # Remove all the whitespace from the beginning
|
|
is ($got, '', "format 'none' should suppress output");
|
|
is (ref $chart, 'ARRAY', "output should be an array ref");
|
|
# Some of these will go bang if the preceding test fails. There will be
|
|
# a big clue as to why, from the previous test's diagnostic
|
|
is (ref $chart->[0], 'ARRAY', "output should be an array of arrays");
|
|
check_graph (@$chart);
|
|
}
|
|
|
|
# this is a repeat of the above test, but with the timing and charting
|
|
# steps split.
|
|
|
|
{
|
|
$foo = $bar = 0;
|
|
select(OUT);
|
|
my $res = timethese($iterations, $code_to_test, 'none' ) ;
|
|
my $chart = cmpthese($res, 'none' ) ;
|
|
select(STDOUT);
|
|
cmp_ok($foo, '>', 0, "Foo code was run");
|
|
cmp_ok($bar, '>', 0, "Bar code was run");
|
|
|
|
$got = $out->read();
|
|
# Remove any warnings about having too few iterations.
|
|
$got =~ s/\(warning:[^\)]+\)//gs;
|
|
$got =~ s/^[ \t\n]+//s; # Remove all the whitespace from the beginning
|
|
is ($got, '', "format 'none' should suppress output");
|
|
is (ref $chart, 'ARRAY', "output should be an array ref");
|
|
# Some of these will go bang if the preceding test fails. There will be
|
|
# a big clue as to why, from the previous test's diagnostic
|
|
is (ref $chart->[0], 'ARRAY', "output should be an array of arrays");
|
|
use Data::Dumper;
|
|
check_graph(@$chart)
|
|
or diag(Data::Dumper->Dump([$res, $chart], ['$res', '$chart']));
|
|
}
|
|
|
|
{
|
|
$foo = $bar = 0;
|
|
select(OUT);
|
|
my $chart = cmpthese( $results ) ;
|
|
select(STDOUT);
|
|
is ($foo, 0, "Foo code was not run");
|
|
is ($bar, 0, "Bar code was not run");
|
|
|
|
$got = $out->read();
|
|
unlike($got, qr/\.\.\./s, 'check that there is no title');
|
|
like ($got, $graph_dissassembly, "Should find the output graph somewhere");
|
|
check_graph_vs_output ($chart, $got);
|
|
}
|
|
|
|
{
|
|
$foo = $bar = 0;
|
|
select(OUT);
|
|
my $chart = cmpthese( $results, 'none' ) ;
|
|
select(STDOUT);
|
|
is ($foo, 0, "Foo code was not run");
|
|
is ($bar, 0, "Bar code was not run");
|
|
|
|
$got = $out->read();
|
|
is ($got, '', "'none' should suppress all output");
|
|
is (ref $chart, 'ARRAY', "output should be an array ref");
|
|
# Some of these will go bang if the preceding test fails. There will be
|
|
# a big clue as to why, from the previous test's diagnostic
|
|
is (ref $chart->[0], 'ARRAY', "output should be an array of arrays");
|
|
check_graph (@$chart);
|
|
}
|
|
|
|
###}my $out = tie *OUT, 'TieOut'; my ($got); ###
|
|
|
|
my $debug = tie *STDERR, 'TieOut';
|
|
|
|
$bar = 0;
|
|
isa_ok(timeit(5, '++$bar'), 'Benchmark', "timeit eval");
|
|
is ($bar, 5, "benchmarked code was run 5 times");
|
|
is ($debug->read(), '', "There was no debug output");
|
|
|
|
Benchmark->debug(1);
|
|
|
|
$bar = 0;
|
|
select(OUT);
|
|
$got = timeit(5, '++$bar');
|
|
select(STDOUT);
|
|
isa_ok($got, 'Benchmark', "timeit eval");
|
|
is ($bar, 5, "benchmarked code was run 5 times");
|
|
is ($out->read(), '', "There was no STDOUT output with debug enabled");
|
|
isnt ($debug->read(), '', "There was STDERR debug output with debug enabled");
|
|
|
|
Benchmark->debug(0);
|
|
|
|
$bar = 0;
|
|
isa_ok(timeit(5, '++$bar'), 'Benchmark', "timeit eval");
|
|
is ($bar, 5, "benchmarked code was run 5 times");
|
|
is ($debug->read(), '', "There was no debug output debug disabled");
|
|
|
|
undef $debug;
|
|
untie *STDERR;
|
|
|
|
# To check the cache we are poking where we don't belong, inside the namespace.
|
|
# The way benchmark is written we can't actually check whether the cache is
|
|
# being used, merely what's become cached.
|
|
|
|
clearallcache();
|
|
my @before_keys = keys %Benchmark::Cache;
|
|
$bar = 0;
|
|
isa_ok(timeit(5, '++$bar'), 'Benchmark', "timeit eval");
|
|
is ($bar, 5, "benchmarked code was run 5 times");
|
|
my @after5_keys = keys %Benchmark::Cache;
|
|
$bar = 0;
|
|
isa_ok(timeit(10, '++$bar'), 'Benchmark', "timeit eval");
|
|
is ($bar, 10, "benchmarked code was run 10 times");
|
|
cmp_ok (scalar keys %Benchmark::Cache, '>', scalar @after5_keys, "10 differs from 5");
|
|
|
|
clearcache(10);
|
|
# Hash key order will be the same if there are the same keys.
|
|
is_deeply ([keys %Benchmark::Cache], \@after5_keys,
|
|
"cleared 10, only cached results for 5 should remain");
|
|
|
|
clearallcache();
|
|
is_deeply ([keys %Benchmark::Cache], \@before_keys,
|
|
"back to square 1 when we clear the cache again?");
|
|
|
|
|
|
{ # Check usage error messages
|
|
my %usage = %Benchmark::_Usage;
|
|
delete $usage{runloop}; # not public, not worrying about it just now
|
|
|
|
my @takes_no_args = qw(clearallcache disablecache enablecache);
|
|
|
|
my %cmpthese = ('forgot {}' => 'cmpthese( 42, foo => sub { 1 } )',
|
|
'not result' => 'cmpthese(42)',
|
|
'array ref' => 'cmpthese( 42, [ foo => sub { 1 } ] )',
|
|
);
|
|
while( my($name, $code) = each %cmpthese ) {
|
|
eval $code;
|
|
is( $@, $usage{cmpthese}, "cmpthese usage: $name" );
|
|
}
|
|
|
|
my %timethese = ('forgot {}' => 'timethese( 42, foo => sub { 1 } )',
|
|
'no code' => 'timethese(42)',
|
|
'array ref' => 'timethese( 42, [ foo => sub { 1 } ] )',
|
|
);
|
|
|
|
while( my($name, $code) = each %timethese ) {
|
|
eval $code;
|
|
is( $@, $usage{timethese}, "timethese usage: $name" );
|
|
}
|
|
|
|
|
|
while( my($func, $usage) = each %usage ) {
|
|
next if grep $func eq $_, @takes_no_args;
|
|
eval "$func()";
|
|
is( $@, $usage, "$func usage: no args" );
|
|
}
|
|
|
|
foreach my $func (@takes_no_args) {
|
|
eval "$func(42)";
|
|
is( $@, $usage{$func}, "$func usage: with args" );
|
|
}
|
|
}
|
|
|
|
done_testing();
|
|
|
|
package TieOut;
|
|
|
|
sub TIEHANDLE {
|
|
my $class = shift;
|
|
bless(\( my $ref = ''), $class);
|
|
}
|
|
|
|
sub PRINT {
|
|
my $self = shift;
|
|
$$self .= join('', @_);
|
|
}
|
|
|
|
sub PRINTF {
|
|
my $self = shift;
|
|
$$self .= sprintf shift, @_;
|
|
}
|
|
|
|
sub read {
|
|
my $self = shift;
|
|
return substr($$self, 0, length($$self), '');
|
|
}
|