replace stderr_is and stderr_like with the ones from PerlbrewTestHelpers

t/PerlbrewTestHelpers.pm

@@ -3,14 +3,36 @@ use Test2::V0;
 use Test2::Plugin::IOEvents;
 
 use Exporter 'import';
-our @EXPORT_OK = qw(stdout_from stdout_is stdout_like);
+our @EXPORT_OK = qw(stderr_from stderr_is stderr_like stdout_from stdout_is stdout_like);
 
 # Replacements of Test::Output made by using Test2::Plugin::IOEvents
 
+sub ioevents_from {
+    my ($cb) = @_;
+    return grep { $_->tag eq 'STDOUT' || $_->tag eq 'STDERR' }
+        map { @{ $_->facets->{info} } }
+        @{ intercept(sub { $cb->() }) };
+}
+
+sub stderr_from (&) {
+    my ($cb) = @_;
+    join "", map { $_->details } grep { $_->tag eq 'STDERR' } ioevents_from($cb);
+}
+
+sub stderr_is (&$;$) {
+    my ($cb, $expected, $desc) = @_;
+    is(stderr_from(sub { $cb->() }), $expected, $desc);
+}
+
+sub stderr_like (&$;$) {
+    my ($cb, $re, $desc) = @_;
+    like(stderr_from(sub { $cb->() }), $re, $desc);
+}
+
 sub stdout_from (&) {
     my ($cb) = @_;
+    return join "", map { $_->details } grep { $_->tag eq 'STDOUT' } ioevents_from($cb);
     my $events = intercept { $cb->() };
-    return join "", map { $_->details } grep { $_->tag eq 'STDOUT' } map { @{ $_->facets->{info} } }@$events;
 }
 
 sub stdout_is (&$;$) {

t/command-alias.t

@@ -1,16 +1,15 @@
 #!/usr/bin/env perl
 use Test2::V0;
 use Test2::Tools::Spec;
+use Config;
 
 BEGIN { $ENV{SHELL} = "/bin/bash" }
 
 use FindBin;
 use lib $FindBin::Bin;
 use App::perlbrew;
 require "test2_helpers.pl";
-
-use Test::Output;
-use Config;
+use PerlbrewTestHelpers qw(stderr_like);
 
 mock_perlbrew_install("perl-5.14.1");
 mock_perlbrew_lib_create('perl-5.14.1@nobita');

t/command-exec.t

@@ -6,8 +6,7 @@ use FindBin;
 use lib $FindBin::Bin;
 use App::perlbrew;
 require 'test2_helpers.pl';
-
-use Test::Output;
+use PerlbrewTestHelpers qw(stderr_is);
 
 mock_perlbrew_install("perl-5.12.3");
 mock_perlbrew_install("perl-5.12.4");