tests: make slow tests easier-to-find

t/run.perl now prints slowest 10 tests at startup, and I've
added ./devel/longest-tests to print all tests sorted by
elapsed time.

This should allow us to notice outliers more quickly in the
future.

1 files changed, 7 insertions, 0 deletions

diff --git a/devel/longest-tests b/devel/longest-tests
new file mode 100755
index 00000000..bf46e166
--- /dev/null
+++ b/devel/longest-tests
@@ -0,0 +1,7 @@
+eval 'exec perl -wS $0 ${1+"$@"}' # this script is too short to copyright
+if 0; # running under some shell
+use v5.12; use autodie; use YAML::XS qw(Load);
+open(my $fh, '<', shift // '.prove');
+my $t = Load(do { local $/; <$fh> })->{tests};
+my @t = sort { $t->{$b}->{elapsed} <=> $t->{$a}->{elapsed} } keys %$t;
+printf "%0.6f %s\n", $t->{$_}->{elapsed}, $_ for @t;