--- /dev/null
+use strict;
+use warnings;
+
+use Test::More tests => 5;
+use Class::MOP::Class;
+
+use Catalyst ();
+
+local our %log_messages; # TODO - Test log messages as expected.
+my $mock_log = Class::MOP::Class->create_anon_class(
+ methods => {
+ map { my $level = $_;
+ $level => sub {
+ $log_messages{$level} ||= [];
+ push(@{ $log_messages{$level} }, $_[1]);
+ },
+ }
+ qw/debug info warn error fatal/,
+ },
+)->new_object;
+
+sub mock_app {
+ my $name = shift;
+ my $mock_log = shift;
+ %log_messages = (); # Flatten log messages.
+ my $meta = Moose->init_meta( for_class => $name );
+ $meta->superclasses('Catalyst');
+ $meta->add_method('log', sub { $mock_log });
+ return $meta->name;
+}
+
+local %ENV = %ENV;
+
+# Remove all relevant env variables to avoid accidental fail
+foreach my $name (grep { /^(CATALYST|TESTAPP)/ } keys %ENV) {
+ delete $ENV{$name};
+}
+
+{
+ my $app = mock_app('TestAppNoStats', $mock_log);
+ $app->setup_stats();
+ ok !$app->use_stats, 'stats off by default';
+}
+{
+ my $app = mock_app('TestAppStats', $mock_log);
+ $app->setup_stats(1);
+ ok $app->use_stats, 'stats on if you say >setup_stats(1)';
+}
+{
+ my $app = mock_app('TestAppStatsDebugTurnsStatsOn', $mock_log);
+ $app->meta->add_method('debug' => sub { 1 });
+ $app->setup_stats();
+ ok $app->use_stats, 'debug on turns stats on';
+}
+{
+ local %ENV = %ENV;
+ $ENV{CATALYST_STATS} = 1;
+ my $app = mock_app('TestAppStatsEnvSet', $mock_log);
+ $app->setup_stats();
+ ok $app->use_stats, 'ENV turns stats on';
+}
+{
+ local %ENV = %ENV;
+ $ENV{CATALYST_STATS} = 0;
+ my $app = mock_app('TestAppStatsEnvUnset', $mock_log);
+ $app->meta->add_method('debug' => sub { 1 });
+ $app->setup_stats(1);
+ ok !$app->use_stats, 'ENV turns stats off, even when debug on and ->setup_stats(1)';
+}
+