--- /dev/null
+#!/usr/bin/perl -w
+
+BEGIN {
+ if( $ENV{PERL_CORE} ) {
+ chdir 't';
+ @INC = ('../lib', 'lib');
+ }
+ else {
+ unshift @INC, 't/lib';
+ }
+}
+
+use strict;
+
+require Test::Simple::Catch;
+my($out, $err) = Test::Simple::Catch::caught();
+local $ENV{HARNESS_ACTIVE} = 0;
+
+require Test::Builder;
+my $TB = Test::Builder->create;
+$TB->level(0);
+
+sub try_cmp_ok {
+ my($left, $cmp, $right) = @_;
+
+ my %expect;
+ $expect{ok} = eval "\$left $cmp \$right";
+ $expect{error} = $@;
+ $expect{error} =~ s/ at .*\n?//;
+
+ local $Test::Builder::Level = $Test::Builder::Level + 1;
+ my $ok = cmp_ok($left, $cmp, $right);
+ $TB->is_num(!!$ok, !!$expect{ok});
+
+ my $diag = $err->read;
+ if( !$ok and $expect{error} ) {
+ $diag =~ s/^# //mg;
+ $TB->like( $diag, "/\Q$expect{error}\E/" );
+ }
+ elsif( $ok ) {
+ $TB->is_eq( $diag, '' );
+ }
+ else {
+ $TB->ok(1);
+ }
+}
+
+
+use Test::More;
+Test::More->builder->no_ending(1);
+
+my @Tests = (
+ [1, '==', 1],
+ [1, '==', 2],
+ ["a", "eq", "b"],
+ ["a", "eq", "a"],
+ [1, "+", 1],
+ [1, "-", 1],
+);
+
+# These don't work yet.
+if( 0 ) {
+#if( eval { require overload } ) {
+ require MyOverload;
+
+ my $cmp = Overloaded::Compare->new("foo", 42);
+ my $ify = Overloaded::Ify->new("bar", 23);
+
+ push @Tests, (
+ [$cmp, '==', 42],
+ [$cmp, 'eq', "foo"],
+ [$ify, 'eq', "bar"],
+ [$ify, "==", 23],
+ );
+}
+
+plan tests => scalar @Tests;
+$TB->plan(tests => @Tests * 2);
+
+for my $test (@Tests) {
+ try_cmp_ok(@$test);
+}